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????????????????????????????????????
? ?
? TBURN003 ?
? Combustion and Fired ?
? Heater Analysis ?
? ?
? Designed & Created by ?
? Alistair A. Tees, P.E. ?
? ?
? ?
? TEES ENGINEERING ?
? 1420 - 25TH STREET ?
? Nederland, Texas 77627 ?
? (409) 727-8388 ?
? ?
????????????????????????????????????
USERS MANUAL
TBURN003
Combustion and Fired Heater Analysis
(C) Copyright 1987-1989, Tees Engineering.
All rights reserved.
TBURN is a Trademark of Tees Engineering
Thank you for supporting the free enterprise system.
LICENSE AGREEMENT
TBURN is a commercial software product of Tees Engineering.
Tees Engineering retains the ownership of TBURN. Copies of
TBURN may be Licensed for use under the following conditions:
A Licensed user may use this software on any compatible
computer, provided the software is used on only one computer
and by only one user at a time. Licensed users may make a
backup copy of TBURN, but any other copying of this software
or its documentation is strictly prohibited except when
authorized in writing by Tees Engineering.
Distributing, renting, sub-licensing, or leasing this software
or documentation without the expressed written consent of Tees
Engineering is strictly prohibited. No one is permitted to
alter, modify or adapt this software or documentation,
including but not limited to, translating, decompiling,
disassembling, or creating derivative works.
The use of this software constitutes acceptance of this
License Agreement.
LIMITED WARRANTY
Tees Engineering warrants that TBURN will substantially
conform to the published specifications and to the
documentation, provided that it is run with the computer
hardware and operating system for which it was designed. Tees
Engineering makes no warranty or representation, either
expressed or implied, with respect to this program or
documentation, including the quality, performance,
merchantability, or fitness for a particular purpose. IN NO
EVENT WILL TEES ENGINEERING, OR ITS AGENTS, BE LIABLE FOR
DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL
DAMAGES ARISING OUT OF THE USE OR THE INABILITY TO USE THIS
PROGRAM OR DOCUMENTATION.
TBURN performs inherently complex and technical calculations.
All results generated by TBURN, or any Tees Engineering
product, should be interpreted by a qualified professional
engineer. There is no substitute for education, experience
or judgement.
TABLE OF CONTENTS
1.0. INTRODUCTION . . . . . . . . . . . . . . . . . . . . 5
1.1. Program Design. . . . . . . . . . . . . . . . . 5
1.2. Computer System Requirements. . . . . . . . . . 5
1.3. Demonstration Version . . . . . . . . . . . . . 5
1.4. Making a Backup Copy of Your Diskette . . . . . 6
2.0. USING TBURN. . . . . . . . . . . . . . . . . . . . . 9
2.1. Introduction. . . . . . . . . . . . . . . . . . 9
2.2. TBURN Main Menu . . . . . . . . . . . . . . . . 12
2.3. Heater Analysis Menu. . . . . . . . . . . . . . 16
2.4. Fuel Gas Composition Input. . . . . . . . . . . 19
2.5. Liquid/Solid Fuel Data Input . . . . . . . . . 21
2.6. Combustion Gas (Air) Data Input . . . . . . . . 22
2.7. Fired Heater Data Input . . . . . . . . . . . . 23
2.8. Project Information Input . . . . . . . . . . . 24
2.9. Results . . . . . . . . . . . . . . . . . . . . 25
3.0. COMBUSTION THEORY. . . . . . . . . . . . . . . . . . 29
4.0. USER SUPPORT . . . . . . . . . . . . . . . . . . . . 30
4.1. General . . . . . . . . . . . . . . . . . . . . 30
4.2. Problems. . . . . . . . . . . . . . . . . . . . 30
4.3. Contacting the Author . . . . . . . . . . . . . 30
4.4. Corporate Users . . . . . . . . . . . . . . . . 31
4.5. Dealers, Value Added Resellers, and
Consultants . . . . . . . . . . . . . . . . . . 31
4.6. Agents of Tees Engineering. . . . . . . . . . . 31
5.0. About the Author, Alistair A. Tees, P.E. . . . . . . 32
1.0. INTRODUCTION
1.1. Program Design
TBURN is designed to provide an engineer with an easy to
use tool for analyzing the combustion of gaseous, liquid
or solid fuels. TBURN was designed for the occasional
user, with simple input screens and numerous prompts and
help windows. My goal was to be able to give this
program to another engineer, without a manual, and have
that person able to solve a combustion problem without
much difficulty or assistance.
1.2. Computer System Requirements
In order to run TBURN smoothly, your computer system must
conform to the following requirements:
* IBM PC, XT, AT OR 100% compatible with BIOS and DOS
functions which are MS-DOS compatible, as defined
in the IBM Technical Reference Manual.
* 256 K of free RAM memory
* MS-DOS or PC-DOS version 2.1 or later
* An Epson FX dot matrix printer or equivalent (Not
required for calculations, only for printing reports
properly).
1.3. Demonstration Version
The 'Demonstration Version' of TBURN allows full access
to all of the functions of TBURN so that the un-licensed
user can examine and evaluate the program. However, some
values involved in the calculations are fixed by the
program, including the following:
Stack Temperature = 600 [F]
Excess Air = 40%
These fixed values will override any user inputted values
in these fields and the calculated results will reflect
these fixed values.
A Licensed copy of TBURN, and all the other software
products from Tees Engineering, can be obtained from Tees
Engineering and its marketing agents.
1.4. Making a Backup Copy of Your Diskette
To protect you against the unlikely event that your
original TBURN diskette is lost or destroyed, you should
make a backup copy. This backup diskette will be your
"Working Copy". That is, once this step is completed,
your original TBURN diskette should be stored in a safe
place. For everyday use, you will use your "Working
Copy". This step should be done before using TBURN.
1.4.1. Single Diskette System
If you have a single diskette system (only one floppy
diskette drive and no fixed disk drive), follow the
instructions below to make a backup copy of your original
TBURN diskette. You will need your DOS diskette, one
blank diskette, and your original TBURN program disk.
o Place a write-protect tab on the notch of your DOS
diskette, and also one on the notch of your TBURN
program diskette.
o Insert the DOS diskette in the drive and turn on
your computer.
o Press [ENTER] until you see the "A" prompt, i.e.
A>
o Type: FORMAT B:/S , and then press [ENTER].
o When the screen prompts you to insert a new diskette
for Drive B, remove the DOS diskette from the drive
and place the blank diskette in the drive. Press
[ENTER].
Note: This last two step will format and load the
"System" files on the blank diskette.
o When the computer prompts you "Format Another
Diskette (Y/N)?", press "N" for No.
o Insert the TBURN diskette into the disk drive and
type: COPY A:*.* B: , and then press [ENTER].
o You will then be prompted to insert the "Source"
diskette into the drive and press [ENTER]. In this
case, the "Source" diskette is your TBURN diskette.
The system will read the files on the TBURN diskette
into memory.
o You will then be prompted to insert the "Target"
diskette into the drive and press [ENTER]. The
blank diskette is the "Target" diskette. The system
will write the TBURN files from memory onto the
blank diskette.
Note: You may be asked to repeat the last two steps
several times depending on the amount of memory in
your computer.
o When the "A" prompt returns to the screen, the
backup process is complete. Remove the original
TBURN diskette from the computer and store it in a
safe place. The other diskette now has copies of
all of the TBURN files and is ready to be used as
your "Working Copy".
1.4.2. Two Diskette System
If you have a two diskette system, follow the
instructions below to make a backup copy of your original
TBURN diskette. You will need your DOS diskette, one
blank diskette, and your original TBURN program disk.
o Place a write-protect tab on the notch of your DOS
diskette, and also one on the notch of your TBURN
program diskette.
o Insert the DOS diskette in Drive A and turn on your
computer.
o Insert the blank diskette in Drive B.
o Press [ENTER] until you see the "A" prompt, i.e.
A>
o Type: FORMAT B:/S , and then press [ENTER].
o When the computer prompts you "Format Another
Diskette (Y/N)?", press "N" for No.
o Remove the DOS diskette from Drive A. Insert the
original TBURN diskette in Drive A. A blank
formatted diskette should be in Drive B.
o Type: COPY A:*.* B: , then press [ENTER].
o After the computer finishes copying the files from
the TBURN diskette to the backup diskette, remove
the TBURN diskette and store in a safe place. The
diskette in Drive B will now be your "Working Copy".
1.4.3. Fixed Disk System
If you using a computer with a fixed disk, often also
refereed to as a "hard disk", you may want to transfer
TBURN onto your fixed disk. Follow the instructions
below to copy the TBURN files onto the fixed disk.
o Place a write-protect tab on the notch of your TBURN
program diskette.
o Boot your computer from the fixed disk.
o Create a sub-directory for TBURN on your fixed disk
by typing: MD\TBURN , and press [ENTER].
o Change directories to the TBURN sub-directory by
typing: CD\TBURN , and press [ENTER].
o Insert the TBURN original program disk in Drive A.
o Copy the files from the diskette to your fixed disk
drive by typing: COPY A:*.* , then press
[ENTER].
o After the computer finishes copying the files from
the TBURN diskette to the fixed disk, remove the
TBURN diskette and store in a safe place.
2.0. USING TBURN
2.1. Introduction
TBURN is an engineering application written using the
MS-DOS operating system. Therefore, you must start or
"boot" your computer using MS- or PC-DOS 2.1 or later in
order to run TBURN.
To start TBURN, insert the program disk in any drive and
make that drive the default drive. For example, if you
insert the program disk in Drive A, type A: and press
[ENTER]. This will make Drive A the default drive and
the "A:>" prompt should be displayed on your screen.
TBURN can also be copied to a fixed disk or other storage
device. Use the DOS change directory, CD, command to
move to the directory containing TBURN.
From the DOS prompt of the drive or fixed disk directory
containing TBURN, simply type "TBURN" and press [ENTER]
to start TBURN. The batch file TBURN.BAT will call the
compiled executable file for TBURN.
2.1.1. General Comments
TBURN is designed so that data entry should be very
obvious and simple. Whenever input is required, TBURN
will prompt you with an input window.
TBURN provides help screens with typical values and other
helpful information for every input field. Most
information requested by TBURN also has a default value.
Also, at any time you can press the "Help" key, [F1],
and TBURN will display context sensitive help.
2.1.2. "Tees-Standard" User Interface
One feature of TBURN is the consistent screen layout.
All Tees Engineering software have a similar screen
layout, where possible. TBURN includes this "Tees-
Standard" user interface, which allows for simple full-
screen editing of input data, and context-sensitive help
windows which are the trademark of Tees Engineering
software. This feature is intended to make the program
more "Engineer-Friendly" and to facilitate learning.
All input screens are divided into three areas. The top
four lines comprise the Title Bar, the left side of the
remaining screen is reserved for input fields, and the
right side of the remaining screen is reserved for help
windows and additional information. A typical input
screen layout is as follows:
????????????????????????????????????????????????????????
? TEES ENGINEERING ?
? TBURN: Combustion and Fired Heater Analysis ?
????????????????????????????????????????????????????????
?????????????????????????? ?????????????????????????????
? Input Fields ? ? Help Windows ?
? ? ? ?
? ? ? ?
? ? ? ?
? ? ? ?
? ? ? ?
? ? ? ?
?????????????????????????? ?????????????????????????????
1 HELP 4 TEES 7 PRINT 0 QUIT
2.1.3. Movement Inside an Input Screen
All input screens allow full-screen entry and editing of
all of the input fields in that screen. Use the [Up-
Arrow], [Down-Arrow] and [Enter] keys to move between
the input fields. When you get to the bottom input
field, pressing [Down-Arrow] again will reposition you
at the top input field. The converse is also true.
After you have entered all of the information in an input
screen and are satisfied that it is correct, press the
escape, [ESC], key to proceed to the next input screen
or on to a results screen.
2.1.4. Function Keys
TBURN defines four of the function keys; [F1], [F4],
[F7], and [F10].
o Pressing [F1] displays a context sensitive help
window.
o Pressing [F4] displays a window with information
about Tees Engineering.
o Press [F10] to exit the program and return to DOS.
From the Main Menu, [F2] and [F3] are activating allowing
the users to add and delete gases from the fuel gas
properties database.
2.2. TBURN Main Menu
The Main Menu of TBURN has nine (9) choices:
o [F]ired Heater Analysis
o [G]as Fuel Combustion
o [L]iquid/Solid Fuel Combustion
o [I]nput Print
o [V]iew Results on Screen
o [P]rint Results
o [S]tore Data File
o [R]etrieve Data File
o [Q]uit Program
Use the [Up Arrow], [Down Arrow] to position the
highlight bar over the menu choice that you what to
execute and press [ENTER]. You can also press the key
of the first letter of the choice description to select
that menu item.
2.2.1. Fired Heater Analysis
Choosing [Fired Heater Analysis] from the "Main Menu"
will initiates a sequence of menus, input screens and
results screens to analysis a fired heater.
Immediately when you press the [F] key or [ENTER] when
the highlight bar is over the [Fired Heater Analysis]
menu choice in the "Main Menu", a two-item overlay menu
will appear where you choose between [Gaseous Fuel] and
[Solid/Liquid Fuel]. This tells TBURN which fuel input
screen to display.
After you have chosen which state fuel you are going to
use, the [Fired Heater Analysis Menu] will be displayed;
See Section 2.3. for more information. This menu is
where you chose which type of analysis you want to
perform.
TBURN will then proceed to a fuel input screen, either
"Fuel Gas Composition Input" or "Liquid/Solid Fuel Data
Input". The sequence continues to the "Combustion Gas
(Air) Data Input" screen, and then to the "Fired Heater
Data Input" screen. Each of these screens is explained
more fully in the following sections.
After TBURN has all the information it needs to perform
the required calculations, it will display the results
of those calculations in the following sequence of
results screens:
o Fuel Properties
o Combustion Gas (Air) Properties
o Flue Gas Properties
o Fired Heater Results
2.2.2. Gas Fuel Combustion
This menu selection is actually a sub-set of the [Fired
Heater Analysis] selection. TBURN will prompt you for
information about the fuel and combustion gas (air) using
a series of input screens, and will then display the
stoichiometry results for the combustion of that fuel and
air mixture.
2.2.3. Liquid/Solid Fuel Combustion
Like Gas Fuel Combustion, Liquid/Solid Fuel Combustion
will prompt you for information about the fuel and
combustion gas and will then display the corresponding
results. The only difference is that the fuel input
screen for liquid and solid fuels is based on the
ultimate weight analysis of the fuel.
2.2.4. Input Print
Choosing "Input Print" will send the input information
and data which you have entered or to which TBURN has
defaulted to a printer attached to your computer. TBURN
uses Epson FX standard control codes. Other printers
will also print the information, but the printout
formatting may not be as desired.
Pressing this key without a printer attached to your
computer may cause an Error Window to appear. Pressing
any key to clear the error window should clear the error.
2.2.5. View Results on Screen
Selecting [View Results on Screen] from the "Main Menu"
will cause the "Results Menu" to appear. This menu
allows you to pick which results you want to have
displayed on the screen. See Section 2.9.2, "Results
Menu" for more information.
2.2.6. Print Results
Selecting [Print Results] from the "Main Menu" will cause
the "Print Results Menu" to appear. Use this menu will
allow you to direct any or all of the results of the
combustion and/or fired heater analysis to a printer.
See Section 2.9.3., "Print Results Menu for more
information.
2.2.7. Store Data File
This selection will prompt you for the name of a file in
which to save the input information and data. This
information can be then retrieve later. This facility
is very useful if common fuel compositions or heaters
are analyzed repeatedly.
2.2.8. Retrieve Data File
This selection will prompt you for the name of an
existing data file. TBURN will retrieve the from the
file and input this information in the input fields.
The current version of TBURN only searches the default
drive for the inputted file name. If TBURN cannot find
the file, an Error Window will appear. Pressing any key
should remove the error message. Future versions of
TBURN will allow path definitions and will display a list
of the available files.
2.2.9. Quit Program
This selection will terminate the program and return you
to the operating system.
2.3. Heater Analysis Menu
The "Heater Analysis Menu" allow you to choice what type
of heater analysis you want to perform. The following
choices are included in this menu.
o Heater Efficiency Based on Stack Temperature
o Excess Air Based on Fuel and Air Flow
o Fuel Flow with Given Air Flow and Excess Air
Percent
o Air Flow Required
o [Future Feature]
o Return to Main Menu
Each of these menu choices is discussed in more detail
in the following sections.
2.3.1. Heater Efficiency Based on Stack Temperature
TBURN calculates the heater efficiency, based on the
combustion stoichiometry calculations and the fuel,
combustion gas (air) and flue gas composition and
temperatures.
The flue gas composition is determined by combustion
stoichiometry analysis based on the fuel and combustion
gas (air) composition. The flue gas composition is in
units of [lb/lb/fuel] or [SCFM/SCFM fuel].
TBURN calculates the specific heat of the flue gas
components using empirically based algorithms and the
stack temperature. These values are then used to
determine the heat loss from the heater with the flue
gases.
2.3.2. Excess Air Based on Fuel and Air Flow
TBURN calculates the required air flow for the given fuel
and air composition. The program then compares the
required air flow with the given air flow and determines
the excess air flow provided.
2.3.3. Fuel Flow with Given Air Flow and Excess Air Percent
TBURN determines the fuel flow required to burn with the
given air flow and still maintain a given amount of
excess air.
2.3.4. Air Flow Required
TBURN calculates the required air flow for the given fuel
and air composition. Based on the amount of fuel
provided and the given excess air requirement, TBURN
determines the necessary air flow.
2.3.5. [Future Feature]
This menu choice has been left empty to accommodate a
future feature that is already in development. Licensed
users of TBURN will be advised when this feature is
available and will be allowed to upgrade.
Users may also request the development of additional
features for future releases of TBURN. Please contact
Tees Engineering if you have a suggestion.
2.3.6. Return to Main Menu
Choosing this option will return you to the Main Menu.
Pressing [ESC] will achieve the same result.
2.4. Fuel Gas Composition Input
Choosing [Fired Heater Analysis] or [Gas Fuel Combustion]
from the "Main Menu" will bring up an input screen for
entering the composition of the fuel gas. TBURN has a
database of twenty-one component gases, including:
methane, ethane, propane, n-butane, i-butane, n-pentane,
i-pentane, hexane, hydrogen, oxygen, nitrogen, carbon
monoxide, carbon dioxide, water vapor, air, hydrogen
sulfide, sulfur dioxide, ethylene, propylene, benzene and
ammonia.
Use the cursor movement keys [Up-Arrow] and [Down-Arrow],
or [Enter] to move to each component gas, and enter the
percent volume (mole percent can be used) of each
component. When all required components have been
entered, press [ESC] to leave this screen.
If the total percentage of the gas components does not
equal 100%, TBURN will prompt you to reenter the input
data or TBURN will normalize the data to obtain 100%.
Also, if you do not enter any components, TBURN will
default to the following typical natural gas composition.
Component Vol %
Methane 83.19
Ethane 8.48
Propane 4.37
n-Butane 0.76
i-Butane 1.68
i-Pentane 0.57
n-Pentane 0.32
Hexane 0.63
2.5. Liquid/Solid Fuel Data Input
The "Liquid/Solid Fuel Data Input" screen is designed to
input the weight percent composition and other
information about a liquid or solid fuel. The input
screen prompts the user for the following information as
shown below:
Again, move between the input screens using the [Up-
Arrow], [Down-Arrow] and [Enter] keys. When your input
data is complete, press [ESC] to leave this input screen.
All of the data fields have default values. If you don't
know a piece of information, allow TBURN to default to
a typical value. The default solid fuel is a typical
Pittsburgh coal.
2.6. Combustion Gas (Air) Data Input
The "Combustion Gas (Air) Data Input" screen prompts the
user for information about the combustion gas or air that
is used for combustion. TBURN defaults to "standard
combustion air" as defined by the American Boiler
Manufacturer's Association (ABMA); i.e. air with a
composition of 79.01 volume percent Nitrogen (inerts are
included in the nitrogen percentage) and 20.99 volume %
Oxygen, with a dry bulb temperature of 80 [F] and
relative humidity of 60% (0.013 lbs. water per lb. air).
2.7. Fired Heater Data Input
The "Fired Heater Data Input" screen is used to input
the required and optional information about the fired
heater. This screen varies depending on the type of
analysis requested from the "Fired Heater Analysis Menu".
The following is a summary of the required information
for each of the heater analysis choices:
o Heater Efficiency Based on Stack Temperature
o Stack Temperature [F], default = 600 [F]
o Excess Air [%], default = 20%
o Excess Air Based on Fuel and Air Flow
o Fuel Flow, in [SCFM] for gaseous fuels
in [lb/hr] for liquid/solid fuels
o Air Flow [SCFM]
o Fuel Flow with Given Air Flow and Excess Air Percent
o Air Flow, in [SCFM, [ACFM] or [lb/hr]
o Excess Air [%], default = 20%
o Air Flow Required
o Fuel Flow, in [SCFM], [ACFM] or [lb/hr]
Some of the optional information that you can also enter
if that information is known are listed below:
Heat Liberated [MMBTU/hr], default = 1 [MMBTU/hr]
Heat Absorbed [MMBTU/hr]
Heater Efficiency, HHV [%], default = 85%
Air (Combustion Gas) Flow, default = 2000 [SCFM]
Air Flow Units [SCFM],[ACFM] or [lbs/hr]
Fuel Flow, default = 100 [SCFM]
Fuel Flow Units [SCFM],[ACFM] or [lbs/hr]
Excess Air [%], default = 20%
Enter only the values that are know and allow TBURN to
solve for the remaining values.
2.8. Project Information Input
Choosing [Input Print], [Print Results] or [Store Data
File] from the "Main Menu", or [List Results to Printer]
from the "Results Menu" will bring up an input screen for
defining the titles and identifiers for your analysis.
The following input fields are available:
o Company
o Engineer
o Date
o Project Title
o Heater Title
o Fuel Title
None of this information is required. Some of these
fields have defaults. For example, the date will default
to the computer system date if no entry is made.
2.9. Results
2.9.1. Results, General
TBURN will display the results of your analysis after you
have entered all of the required information. It will
also allow you to redisplay all of the results to the
screen for further inspection, or to print your results
to a EPSON FX standard dot matrix printer or other
printer that can emulate such a printer.
2.9.2. Results Menu
Selecting [View Results on Screen] from the "Main Menu"
will cause the "Results Menu" to appear.
Again, position the highlight bar over the desired menu
item and press [ENTER] or press the first letter in the
menu item to select that menu item.
2.9.2.1. Fuel Properties
This menu choice displays the composition and properties
of the user defined fuel. Also the minimum oxygen and
air required for complete combustion are displayed.
2.9.2.2. Combustion Gas (Air)
This menu choice displays the composition, volumetric
basis and weight basis, and properties of the combustion
air (air).
2.9.2.3. Properties of Flue Gas
This menu choice displays the composition of the flue
gas resulting from the combustion of the User defined
fuel, with the defined combustion air of the defined
excess air.
2.9.2.4. Heater Analysis
The heater results screen is consistent regardless of the
type of heater analysis you performed. This design was
used in order to simplify the output and thus reduce your
learning time.
This results screen, shown below, displays all of the
results, including some based on default or optional
input data. Be careful when using the results based on
the default values. Make sure that the results reflect
the actual conditions of your analysis, or only use the
relevant results for your problem.
2.9.2.5. List Results to Printer
This menu choice will display the "Print Results Menu",
where you choose what information to send to your
printer. See Section 2.3.4. of this document for more
information.
2.9.2.6. Return to Main Menu
This selection will return you to the "Main Menu".
2.9.3. Print Results Menu
Selecting "Print Results" will cause the "Print Results
Menu" to be displayed. This menu will allow you to
select which information you what to send to your
printer. This menu has the following selections:
o [A]ll Results
o [F]uel Properties
o [C]ombustion Gas (Air)
o [P]roperties of Flue Gas
o [H]eater Analysis
o [I]nput Data
o [R]eturn to Main Menu
3.0. COMBUSTION THEORY
This section will be included in later editions of this
manual.
Useful References:
o Babcock and Wilcox. Steam. New York: Publisher,
19##
o Ganapathy, V. Applied Heat Transfer. City:
Publisher, 19##.
o Reed, Robert. Furnace Operations. City:
Publisher, 19##.
o ASHRAE. Fundamentals. City: Publisher, 19##.
4.0. USER SUPPORT
4.1. General
The use of TBURN, is fully supported by Tees Engineering.
The author of the product will address problems directly.
See Section 4.3, "Contacting the Author" for more
information.
Although comments and recommendations from anyone are
appreciated, Tees Engineering can only provide technical
support for Licensed Users of this product.
4.2. Problems
If you have problems with TBURN, please read this manual
first to make sure you have a thorough understanding of
how the program works and should be used. Tees
Engineering has sought to provide an error-free product,
but because of the complexity and length of this program,
some rarely-occurring bugs may exist. If you think you
have found a problem, please take the time to write or
call me and explain the problem.
All Licensed Users will be informed of any problems and
their solutions. Bug-fixes will be provided to Licensed
Users free of charge. Upgrades to TBURN may require a
small upgrade fee.
4.3. Contacting the Author
The best way to contact the author, Alistair A. Tees,
P.E. is by writing a letter or postcard to:
TEES ENGINEERING
1420 - 25TH STREET
Nederland, Texas 77627
(409) 727-8388
The above telephone number also operates as an RBBS,
Remote Bulletin Board System, from 6 pm till 7 am CST.
This BBS supports up to 2400 baud communication. Use of
this BBS is free to anyone interested, except for the
cost of your telephone service.
Another way to contact the author and obtain technical
support is to leave a message on the RBBS bulletin board,
Arrakis at (409) 724-0646, 24 hours/day, up to 2400
baud. Messages may also be left on CIME-ISE, Computers
In Mechanical Engineering - Information and Software
Exchange, BBS at (608) 233-3378, 24 hours/day, up to 9600
baud. CIME-ISE is sponsored by ASME.
4.4. Corporate Users
TBURN is a unique software package which easily and
accurately solves combustion and fired heater problems,
and is worth well in excess of the License Fee of
$250.00. Corporate users are expected to License each
of the copy of TBURN in use.
Site licenses are available. Please contact Tees
Engineering for more information.
4.5. Dealers, Value Added Resellers, and Consultants
If you would like to use TBURN and include it with your
product or service, please write to Tees Engineering.
The basic requirement for this distribution is that you
or your customer License each copy of TBURN. You cannot
give this software to your customer without first making
sure that the copy is Licensed. This requirement is for
your protection since this software is protected by a
federal copyright, and Tees Engineering and its agents
is therefore the only parties that can receive any
consideration or payment for this software.
4.6. Agents of Tees Engineering
TECHDATA, Inc. is a Marketing Agent of Tees Engineering
for TBURN. A licensed copy of TBURN can be obtained for
$ 250.00 from:
TECHDATA
6615 la Mora
Houston, Texas 77083
(713) 498-0797
(800) 445-3771
5.0. About the Author, Alistair A. Tees, P.E.
Mr. Tees is a registered Professional Engineer in the
state of Texas, and has over 10 years experience working
in the petroleum refining, chemical, and pipeline
industries. Mr. Tees has held positions as Mechanical
Design Engineer, Field Support Mechanical Engineer,
Project Engineer and Project Manager. He is now the
President and Engineering Manager of Tees Engineering.
Alistair Tees graduated from Texas Tech University with
a Bachelor's of Science degree in Mechanical Engineering.
Mr. Tees is a member of Tau Beta Pi, Engineering Honors
Society. He is also a member and is or has been an
officer in the Texas and National Society of Professional
Engineers, and in the American Society of Mechanical
Engineers. In 1986, Mr. Tees was honored as the "Young
Engineer of the Year" by the Sabine Chapter of the Texas
Society of Professional Engineers.
Mr. Tees began developing engineering software in 1979.
Tees Engineering was founded in 1986 to further develop
and market a line of "Engineer-Friendly" software for
working engineers.