E-CodePin fin with convective tip — a TI-84 Plus CE program
FINHT is a TI-BASIC program for the TI-84 Plus CE. Heat rate, fin efficiency, effectiveness, tip temperature and the adiabatic-tip comparison, from sinh/cosh/tanh.
What it asks for and what it shows
It asks for 6 values at its prompts. In the example below it shows ML, Q W, EFF, EFFECT, T TIP C, Q ADI W.
Example run
One of its oracle test cases: “aluminium pin fin”. The inputs are typed in order, and the results are the values the case expects on the screen.
| Step | Value |
|---|---|
| You enter | |
| Input 1 | 200 |
| Input 2 | 25 |
| Input 3 | 0.01 |
| Input 4 | 0.1 |
| Input 5 | 100 |
| Input 6 | 25 |
| The screen shows | |
ML= | 0.7071067812 |
Q W= | 5.163729238 |
EFF= | 0.8552408799 |
EFFECT= | 35.06487608 |
T TIP C= | 83.86231589 |
Q ADI W= | 5.072045409 |
How it's checked
3 test cases, each checked against an independent method. Replayed key by key on a virtual TI-84 Plus CE, they make 19 checks.
How E-Code checks every program
Run it or put it on your calculator
- Open the library in the TI-84 Plus CE calculator and pick “Pin fin with convective tip” (FINHT).
- Put it on your own calculator with a computer and a USB cable, or type it in by hand.
Related programs
- Transient plane wall (first term)
- 2-D steady conduction, plate series
- Newton's law of cooling
- Stefan melting problem
- Radiation exchange, 3-surface enclosure
All TI-84 Plus CE engineering programs · All TI-84 Plus CE programs