**Heat Engine Combustion and Calculator Demo Example** This page is under development. Comments are welcome, but please load any comments in the comments section at the bottom of the page. Please include your wiki MONIKER in your comment with the same courtesy that I will give you. Its very hard to reply intelligibly without some background of the correspondent. Thanks,[gold] ---- <> [gold] Here is some starter code for calculating fuel and dimensions ---- ***Ideal Heat*** ---- ***Common sizes or ranges of burning chamber*** *** coefficients *** ---- ***Testcases Section*** In planning any software, it is advisable to gather a number of testcases to check the results of the program. The math for the testcases can be checked by pasting statements in the TCL console. Aside from the TCL calculator display, when one presses the report button on the calculator, one will have console show access to the capacity functions (subroutines). **** Testcase 1 **** **** Testcase 4 **** **** Testcase 5 **** ====== One MMBtu = 1,000,000 Btu mass_flow_rate = burning_area* fuel_burn_rate*fuel_density where fuel_burn_rate= initial_rate + (e**+c*kelvin) ====== **** Testcase 6 **** ====== testcase number: 6 max room fuel kg 2705.181 ====== %| testcase number: 6 | | | |% &| calculator inputs| known values | | comment |& ---- ***Screenshots Section*** figure 1. [http://imageshack.us/a/img853/5954/ipq.gif] ---- ***References:*** * Kenyan Ceramic Jiko cooking stove, by Hugh Allen ---- **Appendix Code** ***appendix TCL programs and scripts *** ====== ====== ---- For the push buttons, the recommended procedure is push testcase and fill frame, change first three entries etc, push solve, and then push report. Report allows copy and paste from console, but takes away from computer "efficiency". While the testcases are in meters, the units either cancel out or are carried through in the calculator equations. So the units could be entered as English feet, Egyptian royal cubits, Sumerian gars, or Chinese inches and the outputs of volume will in the same (cubic) units. This is an advantage since the units in the ancient Sumerian, Indian, and Chinese texts are open to question. In some benign quarters of the globe, feet and cubic feet were still being used for design in the 1970's. For testcases in a computer session, the eTCL calculator increments a new testcase number internally, eg. TC(1), TC(2) , TC(3) , TC(N). The testcase number is internal to the calculator and will not be printed until the report button is pushed for the current result numbers (which numbers will be cleared on the next solve button.) The command { calculate; reportx } or { calculate ; reportx; clearx } can be added or changed to report automatically, but is not recommended as computer efficiency is impaired. Another wrinkle would be to print out the current text, delimiters, and numbers in a TCL wiki style table as ====== puts " %| testcase $testcase_number | value| units |comment |%" puts " &| volume| $volume| cubic meters |based on length $side1 and width $side2 |&" ====== ---- *** initial console program *** ====== ====== ---- **Comments Section** <> Please place any comments here, Thanks. <> Numerical Analysis | Toys | Calculator | Mathematics| Example