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1993-03-25
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March 24, 1993
=================================================================
CNG-CALC User's Guide
=================================================================
COPYRIGHT (C) 1992-93 B&B Systems
B&B SYSTEMS
627 Madison P.O. Box 171
Waukesha, Wisconsin 53187
Voice:414-544-5988 (9:00am-5:00pm CDT) Data 414-548-9034 (24hrs)
Data line is P.C. Manager, B&B system's
Bulletin Board for Files+Tips+Support+On-Line Ordering
Compuserve:70265,410
INSTALLATION
============
If you haven't made a BACKUP copy recently, do it now.
To install, you can enter INSTALL <hard drive letter>: or use the
3 step manual method as follows:
1) If you don't already have one, Make a "CNG" directory:
At C:\>, enter MD CNG, then CD\CNG
2) Copy BBCNG??.EXE to the CNG directory, C:\CNG>COPY A:*.*
(look at the file name by entering DIR A: and you'll see that
two digits after CNG is the version # Just substitute the
version number for ??)
3) Enter BBCNG??, and the individual files will be extracted.
See Memory Issues section. To run the program enter CNG
<Enter> to answer set-up questions, and get to main menu. Any
errors will create a file called error.txt. This file can be
used by B&B Systems to resolve any errors.
SETUP - You will initially get an opportunity to select your
monitor type, and enter your company name. After the main menu
appears, select the SETUP option. You will need to verify
default information AND edit information in order for your system
to run correctly. These default values are used in the formulas.
The first setup screen will ask you to fill in the Company Name,
Your Name and phone number for possible inclusion into the
economic analyses. Other economic analysis information includes
B&B CNG-CALC User's Guide 2
the local cost per therm of natural gas, the number of BTU's per
therm (default=100,000), any added operating costs of a CNG
refueling station (per therm), added maintenance costs per therm,
Spaces to indent when printing an economic analysis, estimated
annual inflation rate for the fuel currently used (and natural
gas), and the number of cubic feet in one therm (default=100).
Note:these values can be set back to the original defaults by
erasing the file config.mem.
The second screen will ask if you want to use cubic INCHES or
FEET for the cylinder water volumes, plus the default cylinder
size to use (saves typing a common size). Enter Standard
Atmospheric Pressure for your local area. Normally you can leave
the Base Temperature at 60 degrees. You can also elect to USE or
NOT USE the supercompressibility factor when printing
Volume/Pressure charts or "quick Volume" amounts. You will then
see a screen asking for the molecular percentages of the natural
gas in your area. Contact your local natural gas utility (Gas
Distribution or Engineering Dept.) to get this information. This
is important in determining compressibility.
NETWORK
=======
Remember, depending on your network configuration, you may need
to use DOS's "assign" command to assign the read-only attribute
to any "executable" type files on your server. These are .EXE,
FOXPRO.ESO, FOXPRO.ESL, .COM, .FXP and .SPX files.
Also, if you intend to use the F2 Lookup file features and you DO
NOT Intend to Edit the lookup file often, you can assign read
only attributes to the <lookupfile>.dbf and .cdx files to speed
up access to these files.
MEMORY ISSUES
=============
1. Extended Memory CANNOT BE USED by FoxPro. Make as much
Expanded Memory available as possible. To make Extended Memory
act like Expanded, use a memory manager that provides the
standard LIM4.0 interface. If you have an older memory manager
prior to LIM4.0, and your system behaves strangely, add EMS64=OFF
to your config.fp file to avoiding using the first 64K of
expanded. (If you have enough expanded memory, a 386 or greater
machine, and would like more performance, get the Extended
version from B&B systems.)
B&B CNG-CALC User's Guide 3
2. If using QEMM, 386MAX, or DOS5.0's EMM386, make sure these
managers define memory as Expanded. (ie. if using DOS5.0's
DEVICE=EMM386.SYS in your config.sys, don't included NOEMS which
avoids Expanded Memory, but instead include the number of
kilobytes of Expanded, such as 3072).
REQUIRED FOXPRO FILES
=====================
You need the FoxPro runtime files in order to run your system.
These files are called FOXPRO.ESO and FOXPRO.ESL. For Full use
of Expanded Memory (386 machines and greater), replace these two
files with FOXPROX.ESL. These "runtime" files are free and
available on B&B's Bulletin Board (see data number above if you
have a modem and would like to download these files). You need
these files in order for your system to execute properly. YOU
SHOULD ALSO HAVE A MINIMUM OF 2M of RAM, and at least 2 Megabytes
of hard drive storage.
.PRG files compiled with FoxPro2 have an .FXP extension.
Since FoxPro is the "base" for B&B Systems, when FoxPro supplies
versions for Unix and Windows, B&B will also support these
additional platforms, allowing portability between operating
systems.
IF YOU HAVE FOXPRO
==================
You can start or use your system from within FoxPro (2.0) by
issuing DO <B&B System name> from within the command box. If you
are familiar with FoxPro, this will allow you to use some of the
other FoxPro tools such as SQL reports.
DEMO
====
If you are using a DEMO version, you will be limited to using
CNG-CALC for 90 days, or 50 times, whichever comes
first. Registration allows unlimited use for one year.
FEEL FREE TO DISTRIBUTE COPIES OF THIS DEMO.
GENERAL
B&B CNG-CALC User's Guide 4
=======
B&B's CNG-CALC is a computer tool to address several of the basic
issues in the Compressed Natural Gas industry. It can be used to
determine volumes of compressed natural gas in CNG cylinders -
both reference tables and "quick" volume amounts that can access
a vehicle file. CNG-CALC can also produce an economic analysis
specifically for those interested in an investment in CNG
refueling stations and/or vehicles.
Upon first starting CNG-CALC, the menu options will appear in the
middle of your screen. You can select these options with the
cursor keys and <Enter>, or entering the highlighted "hot" key.
In addition, sometimes, menu options will appear across the top
of the screen. Pressing the ALTERNATE key <ALT> will highlight
the first option, and you can use your arrow key to move to
different options.
When maintaining some files, you will see the Browse option at
the top of the screen. Highlighting and <Entering> on this
option will give you an ability to add, and mark records for
deletion.
B&B CNG-CALC User's Guide 5
(condensed for space purposes - numbers fictitious)
-----------------------------------------------------------------
| SAMPLE FINANCIAL ANALYSIS FOR: ??? |
| 9 VEHICLE CONVERSIONS (TYPE 1) AT $ 999 EACH = $ 999 |
| 9 VEHICLE CONVERSIONS (TYPE 2) AT $ 888 EACH = $ 8,888 |
| 9 REFUELING STATIONS (TYPE 1) AT $ 9,999 EACH = $ 9,999 |
| 9 REFUELING STATIONS (TYPE 2) AT $ 8,888 EACH = $ 8,888 |
|---------------------------------------------------------------|
| TOTAL INVESTMENT/EQUIPMENT $88,888 |
| ANN. GALLONS OF GASOLINE : 9,999 AT $1.200 /GALLON $ 1,111 |
| ANN. THERMS OF NATURAL GAS:9,999 AT $0.700 /THERM $ 1,111 |
|---------------------------------------------------------------|
| FIRST YEAR FUEL SAVINGS $ 2,222 |
| ANN.$ $ O&M GROSS DEPRE INC. NET |
|YR SVGS INVEST. INTER. EXP. INCOME CIATION TAX INCOME |
|-- ---- ------- ------ ---- ------ ------- ------ -------|
|92 0 9,999 0 0 -9,999 0 0 -9,999 |
|93 2,222 0 9,999 666 111 6,666 -2,222 1,111 |
|94 3,333 0 999 666 2,222 5,555 -1,111 2,222 |
|95 4,444 0 0 666 3,333 4,444 -222 2,222 |
|96 5,555 0 0 666 4,444 3,333 222 2,222 |
|97 6,666 0 0 666 5,555 2,222 333 1,111 |
|98 7,777 0 0 666 6,666 1,111 444 1,111 |
|99 8,888 0 0 666 7,777 0 555 2,222 |
|00 9,999 0 0 666 8,888 0 6,666 1,111 |
|01 9,999 0 0 666 9,999 0 7,777 1,111 |
|02 9,999 0 0 666 9,999 0 8,888 1,111 |
|-- ----- ----- ----- ---- ----- ------- ----- ------ |
| 99,999 9,999 9,999 6,666 9,999 9,999 8,888 9,999 |
| |
| CORPORATE Tax Rate: 50% |
| FINANCING - Number of MONTHS: 24 Interest Rate:12% |
| $ AMOUNT Financed/% of TOTAL INVESTMENT:$ 88,888 75% |
| |
| EST.ANN.INFLATION RATE FOR GASOLINE: 3.0% NATURAL GAS: 3.0% |
| |
| CNG OPERATING COSTS $0.04 MAINTENANCE COSTS $0.04 per Therm |
| |
| FUT.VALUE of $88,888: Invested Over 24 Mo. at an Annual |
| Compounded Interest rate of 12% EQUALS: 99,999 |
| |
| INTERNAL RATE OF RETURN -23% |
| PAYBACK ON NET INCOME (After taxes): 8.62 YEARS |
| SIMPLE PAYBACK ON TAXABLE INCOME: 8.62 YEARS |
| Prepared by:INSERT YOUR COMPANY NAME HERE YOUR NAME HERE |
-----------------------------------------------------------------
B&B CNG-CALC User's Guide 6
FINANCIAL ANALYSIS
==================
Filling-in the questions
- Customer name is name of potential user of a CNG system.
- Current Fuel, choose customer's current fuel (normally
gasoline) - after hitting <Enter>, the number of btu's per gallon
from the fuel data base is retrieved. Then, when you enter the
number of gallons of CURRENT fuel usage, the FUTURE fuel use (in
therms) is calculated and "filled-in" for you. You can still
change the future therm usage.
- Vehicle Conversion (# vehicles to be converted/conversion cost
per vehicle). You can include 2 types of conversion vehicles (eg.
10 cars, 2 trucks)
- Refueling Station (# stations desired). You can include two
types of stations (eg. 2 w/three pumps, 1 w/ten pumps)
- Current fuel use in total (all vehicles) annual gallons
(or use per vehicle)
- Current fuel cost per gallon and the estimated annual increase
in costs.
- Future fuel use in total (all vehicles) annual therms
- Current local natural gas cost per therm and the estimated
annual increase in costs. If you expect gasoline prices to rise
faster, enter a higher number than the inflation rate for natural
gas.
- Add optional Estimated operating and maintenance expenses (for
refueling stations and vehicles) that you expect under the new
fueling system.
- If you plan on financing any of the costs, include:Annual
Interest Rate, Financing period in months (10 years=120 months),
and % of the total investment you are going to finance.
- Income tax rate, used to determine pre-tax and after-tax cash
flow.
- Include any additional tax incentive provided by local tax laws
to encourage natural gas use. (ie. Investment Tax Credit?).
This % is currently added to the Income tax rate in calculating
B&B CNG-CALC User's Guide 7
tax flow (But plans include using this amount as a simple
deduction, depending on the outcome of regulations, and local
needs). You can elect to allocate this extra incentive amount to
depreciation in a specific year.
- Project the analysis and financial benefits how many years into
the future? You can produce an analysis over 5 years or 10
years.
- Select a depreciation schedule file. Included with your
CNG-CALC system are three files (DEPRONE, DEPRTWO and DEPRTHR)
containing the percentage of depreciation to deduct in each of
the first 5,10 or 20 years, with separate percentages in each
year for VEHICLES and REFUELING STATIONS. You can edit these to
depreciate any percentage of vehicle or station costs, over any
number of years.
SAMPLE Depreciation schedule percentages provided with CNG-CALC:
Stations Vehicles
======== =========
1st year .2857142 .4000
2nd .2040815 .2400
3rd .1457726 .1440
4th .1041233 .0864
5th .0743738 .1296
6th .0531241
7th .1328105
======== ========
100% 100%
CHANGING DEPRECIATION SCHEDULES
-------------------------------
The depreciation files supplied with your system are called
DEPRONE, DEPRTWO and DEPRTHR. They are all the same, except you
can modify them to include different yearly depreciation
percentages, in each one, to apply to investments in EQUIPMENT
and VEHICLES. Each file has a record for the current year, plus
future years. Normally, depreciation starts in the first full
year and values in the record "CURRENTYR" are ignored.
IMPORTANT !
===========
B&B CNG-CALC User's Guide 8
DEPRECIATION SCHEDULES MAY REQUIRE CHANGING TO REFLECT CURRENT
TAX LAW! CHANGES IN TAX AND ENVIRONMENTAL REGULATIONS MAY AFFECT
THESE FINANCIAL STATEMENTS. THESE FINANCIAL STATEMENTS WERE
DEVELOPED AS A GUIDE TO THE GENERAL FINANCIAL IMPLICATIONS OF AN
INVESTMENT IN ALTERNATIVE FUEL SYSTEMS.
B&B SYSTEMS MAKES NO WARRANTY AS TO THE VALIDITY OF THESE
FINANCIAL STATEMENTS. USER ASSUMES ALL RESPONSIBILITY FOR THEIR
USE. PLEASE CHECK WITH YOUR ACCOUNTANT TO VERIFY THE VALIDITY OF
ANY FINANCIAL CLAIMS MADE ON THE BASIS OF THESE FINANCIAL
STATEMENTS.
SAVING ANALYSIS
===============
After printing your analysis, you will be asked if you want to
save it. If you answer yes, you will have an opportunity to save
it using the name of the customer, or any other name you select.
RECALL PRIOR ANALYSIS
=====================
When you first enter the Financial Analysis module, press the
<ALT> key to highlight the "recall" option, and you will see a
list of previously saved Financial Analysis files. Highlight
one, and press <Enter> and the values for the previously saved
Analysis will be retrieved.
PRESSURE\VOLUME CHART
=====================
SAMPLE
----------------------------------------------------------------|
| |
| CHART TO DETERMINE CUBIC FEET OF COMPRESSED NATURAL GAS Pg 1 |
| FOR Cylinder with a Water Volume: 3000 C.Inch at 77 degrees |
| |
| |
| Begin --------- Ending Pressure (PSI) ----------|
| Press 0 50 100 150 200 250 300 350 400 450 500 |
|---------------------------------------------------------------|
| 0 0 33 67 101 135 170 206 241 277 314 351 |
| 50 0 0 34 68 102 137 172 208 244 281 317 |
| 100 0 0 0 34 69 103 139 174 210 247 284 |
| 150 0 0 0 0 34 69 105 140 176 213 250 |
| 200 0 0 0 0 0 35 70 106 142 178 215 |
| |
B&B CNG-CALC User's Guide 9
-----------------------------------------------------------------
TO DETERMINE the CUBIC FEET OF Compressed Natural Gas pumped into
a particular size cylinder, find the appropriate beginning
pressure amount in the ROW and the appropriate ending pressure in
the COLUMN. The amount where the row and column intersects is
the fill amount.
To print a Volume/Pressure chart, you will need to enter the
ambient (outside) temperature, and if multiple charts are desired
for multiple temperatures, enter a larger ending temperature.
The temperature increment used for these multiple charts can be
defined in SETUP. Default = every 5 degrees.
Next, you need to enter the size of the CNG Cylinder in water
volume, either cubic inches, or feet, depending on your selection
in SETUP.
You can also produce these charts that show fill amounts in other
than Natural Gas Cubic Feet. You can select the equivalent in
gasoline gallons, or diesel, etc.
You will then be asked if you want to proceed. If yes, then be
patient, the calculations will be made and all charts will print
when they are all done being prepared.
If the tables do not appear to be printing properly (ie., extra
line on one page, sections split on pages, etc.) make sure that
you have not changed the printer codes in the printer file that
control 6 lines per inch (vertical) and compressed/condensed font
(16.66 characters horizontally). The default of 59 lines per
page is dependent on the 6 lines per inch.
You may want to experiment by selecting a different printer with
similar print codes.
The charts can take into consideration supercompressibility,
depending on your selection in SETUP.
METHODOLOGY
COMPRESSIBILITY/SUPERCOMPRESSIBILITY
====================================
Compressibility (z) of gases is a function of Temperature and
Molar Volume. This is a measure of how gases deviate from the
"Ideal Gas" behavior. At sufficiently high temperatures and low
pressures, all gases obey the ideal gas law, or perfect gas law,
B&B CNG-CALC User's Guide 10
or equation of state:
pV=RT
Where p=pressure, T=absolute temperature, V=molar volume, and R
is the gas constant (82.0544ml-atm/(mole)(K). Molar Volume is
the molecular weight divided by the gas density. But at lower
temperatures or higher pressures, the equation of state of a real
gas is different than the ideal gas law. The equations of J. Van
Der Waals(1899), P.E.M. Berthelot(1907) (and also F.
Dieterici(1899)) are frequently used.
(p+a/V2)(V-b)=RT
However none of these relations gives a good representation of
the compressibility of real gases over a wide range of
temperatures and pressures.
Compressibility is related to the size of the gas molecules,
their attraction to each other (Intermolecular forces), and in
natural gas there a multiple components, methane, butane, etc.
Each component has its own molecule size. Because of these
variables, ONE conversion factor is not available to calculate
gas volumes. So, compressibility in B&B CNG-CALC is based on two
manuals from the American Gas Association (A.G.A.), the GAS
MEASUREMENT MANUAL 1974 (XQ1081) and COMPRESSIBILITY FACTORS OF
NATURAL GAS and OTHER RELATED HYDROCARBON GASES MANUAL 11/92
(XQ9212). B&B Systems acknowledges the A.G.A. for their support
and efforts to provide a clearer understanding of the gas
industry and standard practices within it.
B&B has chosen to base the calculation of gas volumes in CNG-CALC
on A.G.A's "detailed" method to compute compressibility,
supercompressibility and gas density. This method provides
greater accuracy over a wider range of temperatures and
pressures. Although many efforts have been made in the past to
publish compressibility data/tables, the number of variable
factors has limited their accuracy. A key element in using CNG-
CALC involves determining the mole percentage makeup of natural
gas in your area, and can be obtained from your local utility.
The calculations in CNG-CALC are valid for temperatures from -200
to 760 degrees Fahrenheit and pressures up to 40,000 psia. It is
not recommended when gas approaches the critical point (becomes a
liquid). The calculations accurately describe the behavior of
methane, ethane, carbon dioxide, nitrogen, hydrogen and binary
B&B CNG-CALC User's Guide 11
mixtures of these components. In addition, a low density
correlation was developed for propane, heavier hydrocarbons and
binary mixtures of these components with methane, ethane,
nitrogen and carbon dioxide. This method reduces the uncertainty
of compressibility and density calculations for natural gases
from production separators, which can contain mole percentages of
hexanes plus heavier hydrocarbons greater than 1%. Correlations
of the density behavior of pure hydrogen sulfide and binary
mixtures of hydrogen sulfide with methane, ethane, nitrogen, and
carbon dioxide were developed to reduce the calculation
uncertainty for natural gases containing hydrogen sulfide (sour
gas). Finally, second virial correlations were developed for
water and binary mixtures of water with methane, ethane,
nitrogen, and carbon dioxide to reduce the calculation
uncertainty for natural gases containing water vapor (wet gas).
From the Compressibility Factors manual, "The computed
compressibility factor generally agrees with the best available
compressibility factor data for natural gases with differences
approaching the experimental uncertainty of 0.1%. Thus,
calculated compressibility factors are accurate to about one part
in 10,000, or if less than 1.0, to about four significant
figures."
Regarding the equation of state for the Compressibility Factor,
"The equation used combines features of the virial equation of
state (a power series in density) for low density conditions and
exponential functions for applications at high density conditions
(extended Benedict-Webb-Rubin equation). This equation provides
both high accuracy, broad temperature-pressure-composition
application range and derived thermodynamic property
capabilities."
Uncertainties
-------------
Compressibility factors were compared with experimentally
measured values on five simulated natural gas mixtures
gravimetrically prepared to represent natural gas samples
occurring in North America and Europe. The uncertainty of these
samples in the temperature range -10 to 170 and pressures to 1750
psi at a 95% confidence level is .07%. The uncertainty of this
data from pressures of 1750 to 5200psi is less than .2% (.002).
The computed compressibility factors agree on average within
.025% of a best fit of the experimental data from 35-170 degrees
B&B CNG-CALC User's Guide 12
and pressures up to 1750psi. At conditions up to 5200psi the
agreement between calculated values and a best fit of the
experimental data above 35 degrees is .1% (.001). The A.G.A
performed calculations on 75 different natural gases, grouped
into 6 groups with similar compositions. The uncertainties in
calculated compressibility factors were smallest for the natural
gases with more than 94% mole percent methane, for which the
standard deviation was .031% and the maximum deviation for 448
occurrences was .159%. Uncertainties were largest for natural
gases with more than 9.5% mole percent nitrogen. The standard
deviation was .064% for 625 data points. The maximum deviation
point in a total of 4146 data points was for natural gas with
more than 8% mole ethane - .255%. Overall, the standard
deviation was .05%, the root mean square deviation was .05%, the
bias 0.000% and the absolute deviation was .035% (.00035).
After calculation of Supercompressibility and Compressibility
factors are made, a combination of Boyle's and Charles' laws are
used to calculate volumetric changes based on volume, pressure
(and base pressure) and temperature (and base temperature).
PRESSURE/VOLUME CHART OPTIONS
=============================
Normally, the fill amounts are in cubic feet of natural gas.
But with version 1.1, you can have the fill amounts shown in
equivalent gallons of gasoline, diesel, propane, or any other
fuels in the fuel file. The calculations involve converting the
natural gas amount into BTU's using the assumed default of 100
cubic feet equals 1 therm. But you can change this default of
100cf in one therm in the Calculations section. It also uses the
number of BTU's per gallon from the fuels file for the fuel
selected. You can change this amount in the fuel file
maintenance.
QUICK VOLUME\PRESSURE
=====================
Use this module to IMMEDIATELY determine the fill amount of CNG
for a vehicle's specific cylinder size and beginning/ending
pressures. You can either enter a vehicle number or a cylinder
size. If you want to access the vehicle .dbf (data base file),
you should first select Maintain Vehicle file from the main menu
and add vehicle numbers and cylinder sizes to the file.
You will also be given the option of producing the fill amount in
cubic feet of natural gas, or the equivalent gallons of any type
B&B CNG-CALC User's Guide 13
of fuel (See the Volume/Pressure Chart section for information on
how equivalent gallons are computed.
<F1> HELP
=========
Pressing <F1> will display the help topics that may be reviewed.
Selecting the Help option from the main menu will provide you
with several options. You can Search for topics or words of
interest. You can Edit existing help information or you can Add
new help topics. When you are editing or adding, when you place
the cursor in the details or MEMO type field, and enter
<Ctrl><PgDn>, you will be in the editing mode and can change any
of the information to suit your needs/daily operations.
B&B CNG-CALC User's Guide 14
PRINTER CONTROL
===============
You have control over your printer functions in several different
ways.
PRIOR TO PRINTING
=================
First of all, prior to all print jobs you will have the option of
sending your print job to the printer designated as the DEFAULT
printer.
MAINTENANCE
===========
When selecting the printer maintenance function, you can:
ADD TO SELECTED PRINTERS or,
EDIT PRINTER CODES or,
SEND CODES TO PRINTER
ADD TO SELECTED PRINTERS
========================
You will see a list of available printers, You can also ADD one
of your own or EDIT one you will not use. NOTE: when new print
code files are distributed (p_codes.dbf) by FoxPro or B&B
Systems, it can overwrite your p_codes file.
You will be able to enter a 'Y' to select ONE default printer.
Or, you can enter 'Y' in the select field to have them listed in
the select printer options list.
EDIT PRINTER CODES
==================
If you want to edit the actual printer codes, you can do that in
this mode. When you want to edit the code that controls, say,
compressed/condensed printing, edit the compressed code by
entering the decimal codes for your printer (see your printer
manual). Enter these decimal codes in this format: CHR(<decimal
code>) and the code will be converted for you.
SEND CODES TO PRINTER
=====================
This option will send the codes to your printer.
B&B CNG-CALC User's Guide 15
CUSTOMIZATION
=============
B&B Systems are specialists in Compressed Natural Gas technology
systems. We offer customization services such as loading your
list of vehicles into the vehicle data base file, adding custom
modules, changing the existing system, or attaching an accounting
system, such as billing/usage capability.
UPDATES
=======
When updates become available, registered owners are eligible to
download all updates on B&B's BBS free of charge during the
registration period.
FILES
=====
CNG-CALC is based on the FOXPRO Relational Data Base. If you
wish to make changes to data files, you can access various files
from the box, or top screen menus, or you can use FOXPRO (version
2.0) to make those changes. But be careful, all changes to data
SHOULD be made within B&B's CNG CALC.
FOXPRO.ESO, .ESL, and FOXR are the FoxPro2 runtime files
CNG.EXE is your B&B CNG-CALC System.
P_CODES.DBF, .CDX are the files containing printer control codes
DEPRONE/TWO/THR.DBF files are depreciation schedules.
Each record is a year (CURRENT, 1STYR, 2NDYR, ETC.) and
each record contains two fields containing the percentage
to depreciate both vehicles or compressor stations each year.
You can add records to extend depreciation past for any number
of years,
but commonly you would just edit the records in DEPRTWO
to hold the depreciation percentages desired. DEPRTHR can
hold a different set of percentages.
FUEL.DBF contains records for Gasoline, Propane, etc. and the
default BTU's per gallon, and COST per gallon to be used in
the financial analysis.
VEHICLE.DBF contains a record for each vehicle number in your
fleet, the CNG cylinder size in cubic inches of water volume.
A field for accumulated cubic feet is also included. When you
produce a "Quick Volume" calculation, you can elect to add the
calculated cubic feet to this field. When you enter the
vehicle number in "Quick Volume", the cylinder size from the
B&B CNG-CALC User's Guide 16
vehicle record is also used in the calculation.
HELPFILE.DBF - help information
CONFIG.FP is FoxPro's configuration file. If you have a Foxpro
manual, refer to it for customization features.
FINANCIA.DBF - Temporary holding place for financial analysis.
--------------------
ORDERING INFORMATION
--------------------
If ordering by check, please allow at least 2 weeks.
If you prefer, B&B Systems can supply your program via modem if
you register on our bulletin board which has two advantages:
1. FREE upgrades of new versions become available
immediately.
2. If paying by Visa/Master Charge, you can get your
system faster, as soon as 1/2 hour.
You can order by calling B&B Systems direct (414-544-5988), or
call our Bulletin Board, P.C. Manager (414-548-9034) and <A>CCESS
the ORDER system from the Main Menu. You will be asked for
shipping information and your credit card data.
After your card is verified, you will be authorized to be given
the key to unlock your system for unlimited annual use, or you
can download a new CNG CALC system approved for another calendar
year.
If you order by mail, and plan to download electronically, you
will be registered under the first and last name and password you
supply on this form. It is recommended that you change your
password after accessing B&B System's bulletin board the first
time.
If you ordered from a dealer and want to be eligible for
upgrades, sign on to P.C. Manager, and leave a message that you
would like a security level allowing upgrade downloads, and which
dealer you purchased your system from. Once the purchase has
been validated, your security level will be upgraded.
We try to keep our software costs low. We cannot afford to train
users about computers unless they apply for annual technical
support via telephone.
If you've forgotten to register a DEMO and need to access your
system immediately, and you do not have a modem, we can supply an
emergency access code over the phone with a credit card order.
B&B CNG-CALC User's Guide 17
If you plan on installing B&B systems on MORE than one machine,
consider a SITE LICENSE. You can move a registered system to a
new machine, but making copies is not only illegal, but more
importantly, unethical. A SITE LICENSE allows unlimited use of
NETWORK or STAND-ALONE versions at one location. A CORPORATE
LICENSE allows the same unlimited use, but at multiple locations.
LICENSES are not software purchases. They are permission to use
software for a specific period of time, normally annually.
B&B CNG-CALC User's Guide 18
---------------------------------------------------------
O R D E R F O R M
---------------------------------------------------------
B & B S Y S T E M S
627 Madison P.O. Box 171
Waukesha, Wisconsin 53187
Order/Technical Support: 414-544-5988 BBS: 414-548-9034
DESCRIPTION QUANTITY EACH TOTAL
----------------------------------------------------------
B&B CNG-CALC ANN.SINGLE LIC_____ $500.00 _______
ANN.SITE LIC_____ 1200.00 _______
ANN.CORP LIC_____ 2500.00 _______
B&B SALELEAD Letter and
Marketing Info. Manager SINGLE _____ $199.00 _______
NETWORK _____ 499.00 _______
SITE LIC_____ 1500.00 _______
CORP LIC_____ 2500.00 _______
ONE YEAR's UNLIMITED Technical Support Phone service
(Annual $ amount same as software cost above) $_______
Shipping and Handling:
___ Sign me up on BBS for immediate downloading - $0
Password desired ____________
___ US Postal Service - $0
___ Express Mail $15 $_______
WI 5% Sales Tax $_______
Total: $_______
Format:___ 5-1/4" ___ 3-1/2"
Visa/MC Card Number: _____________________ Exp Date:________
Signature: __________________________________________________
Name: _____________________________________________________
Street Address: _____________________________________________
(if PO Box, add street address)
City: ______________________ State: _____ Zip: __________
Bus. Phone: ( ) __________________________
Current Version # _______________ Date:_________________
B&B CNG-CALC User's Guide 19
B&B CNG-CALC User's Guide 20
WARRANTY
--------
DISCLAIMER OF WARRANTY AND LIMITED WARRANTY
The Software and accompanying written materials (including
instructions for use) are provided 'As Is' without warranty of
any kind. Further, B&B Systems does not warrant, guarantee, or
make any representations regarding the use, or the results of the
use, of the Software or written materials in terms of
correctness, accuracy, reliability, currentness, or otherwise.
The entire risk as to the results and performance of the Software
is assumed by you. If the Software or written materials are
defective, you, and not B&B Systems or its dealers, distributors,
agents, or employees, assume the entire cost of all necessary
servicing, repair, or correction.
B&B Systems warrants to the original LICENSEE that 1) the disks
on which the SOFTWARE is recorded is free from defects in
materials and workmanship under normal use and service for a
period of ninety (90) days from the date of delivery as evidenced
by a copy of the receipt. Further, B&B Systems hereby limits the
duration of any implied warranty(ies) on the disk to the
respective period stated above. Some states do not allow
limitations on duration of an implied warranty, so the above
limitation may not apply to you.
B&B Systems' entire liability and your exclusive remedy as to the
disk(s) shall be, at B&B Systems ' option, either a) return of
the purchase price or b) replacement of the disk(s) that does not
meet B&B Systems' Limited Warranty and which is returned to B&B
Systems with a copy of the receipt. If failure of the disk(s)
has resulted from accident, abuse, or misapplication, B&B Systems
shall have no responsibility to replace the disk(s), or refund
the purchase price. Any replacement disk(s) will be warranted
for the remainder of the original warranty period, or thirty (30)
days, whichever is longer.
THE ABOVE ARE THE ONLY WARRANTIES OF ANY KIND, EITHER EXPRESSED
OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES
OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, THAT ARE
MADE BY B&B Systems ON THIS B&B Systems PRODUCT. NO WRITTEN OR
ORAL INFORMATION OR ADVICE GIVEN BY B&B Systems, ITS DEALERS,
DISTRIBUTORS, AGENTS, OR EMPLOYEES SHALL CREATE A WARRANTY OR IN
ANY WAY INCREASE THE SCOPE OF THIS WARRANTY, AND YOU MAY NOT RELY
ON ANY SUCH INFORMATION OR ADVICE. THIS WARRANTY GIVES YOU
SPECIFIC LEGAL RIGHTS. YOU MAY HAVE OTHER RIGHTS, WHICH VARY
FROM STATE TO STATE.
NEITHER B&B Systems NOR ANYONE ELSE WHO HAS BEEN INVOLVED IN THE
CREATION, PRODUCTION, OR DELIVERY OF THIS PRODUCT SHALL BE LIABLE
FOR ANY DIRECT, INDIRECT, CONSEQUENTIAL OR INCIDENTAL DAMAGES
(INCLUDING DAMAGES FOR LOSS OF BUSINESS PROFITS, BUSINESS
INTERRUPTION, LOSS OF BUSINESS INFORMATION, AND THE LIKE) ARISING
OUT OF THE USE OF OR INABILITY TO USE SUCH PRODUCT EVEN IF B&B
Systems HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
BECAUSE SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF
LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES , THE ABOVE
LIMITATION MAY NOT APPLY TO YOU.
B&B CNG-CALC User's Guide 21
The SOFTWARE and documentation is provided with RESTRICTED
RIGHTS. Use, duplication, or disclosure is subject to
restrictions as set forth in subdivision (b)(3)(ii) of the Rights
in Technical Data and Computer Software clause at 252.227-7013.
Contractor/Manufacturer is B&B Systems, P.O.Box 171, Waukesha,
Wisconsin 53187. Should you have any questions about this
Agreement please write to the address above.
CHANGES
=======
Version 1.1 12-30-92
- Added capability to produce Pressure/Volume charts with
equivalent gallons of gasoline, propane or diesel instead of
cubic feet of natural gas.
- All volumes of cylinders are now in cubic inches of water
volume.
- the VEHICLE.DBF file structure was changed to use water volume
of a vehicle in cubic inches, not cubic feet. Use file dated
after 1-1-93.
- CNG CALC was changed to allow financing and yearly projections
in time periods that varied from 1 year and up. Version 1.2
- The Quick volume option was added
Version 1.3
- Ability to produce volumes other than cubic feet
B&B CNG-CALC User's Guide 22
INDEX
=====
.FXP 2, 3
<F1> 13
A.G.A. 10
ACCURACY 10, 11, 20
ATMOSPHERIC 2
BACKUP 1
BTU 2, 6, 12, 15
COMPRESSIBILITY 2, 9-12
CORPORATE TAX 5
CUSTOMIZATION 15, 16
DEFAULT 1, 2, 9, 12, 14, 15
DEPRECIATION 7, 8, 15
DEVIATION 12
DIESEL 9, 12, 21
FILE STRUCTURE 21
FINANCIAL ANALYSIS 5, 6, 8, 15, 16
GASOLINE 5, 6, 9, 12, 15, 21
HELP 13, 16
HELPFILE 16
IDEAL GAS LAW 9, 10
INSTALLATION 1
LOOKUP 2
MAINTENANCE 2, 5, 6, 12, 14
METHANE 10-12
MODEM 3, 16
MOLE 10-12
MOLECULAR WEIGHT 10
NETWORK 2, 17, 18
OPERATING 2, 3, 5, 6
PERFECT GAS 9
PHONE 1, 16, 18
PRESSURE\VOLUME 8
PRINT 9, 14
PRINTER CONTROL 14, 15
PROPANE 11, 12, 15, 21
RECALL 8
REPORTS 3
SAMPLE 5, 7, 8
SCHEDULE 7
SETUP 1, 9
SUPERCOMPRESSIBILITY 2, 9, 10, 12
TAX 5, 18
VEHICLE FILE 4, 12
VOLUME 2, 4, 8-10, 12, 13, 15, 21
WARRANTY 8, 20
WATER VOLUME 8, 9, 15, 21
