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Wishsanuruk Wechsatol. Energy balance and entropy generation analysis of a compressed air engine. (). King Mongkut's University of Technology Thonburi. KMUTT Library. : , 2012.
Energy balance and entropy generation analysis of a compressed air engine
Name: Yuttachai Chareonittikul
Organization :
King Mongkuts University of Technology Thonburi. Faculty of Engineering. Department of Mechanical Engineering
Name: J. Wongwiwat
Organization :
King Mongkuts University of Technology Thonburi. Faculty of Engineering. Department of Mechanical Engineering
Name: K. Jirapongsananurak
Organization :
King Mongkuts University of Technology Thonburi. Faculty of Engineering. Department of Mechanical Engineering
Name: Wishsanuruk Wechsatol
Organization :
King Mongkut's University of Technology Thonburi. Faculty of Engineering. Department of Mechanical Engineering
keyword:
Compressed air engine
Abstract:
The research related to the compressed air engines has been widely investigated, but no one has ever included the external heat transfer and entropy generation analysis. Therefore, in this research paper a SA-80L YANMA diesel engine with 517 cc. of cylinder volume was modified by replacing the diesel fuel injector with a high pressure air injector. The modified air engine still operated with a four-stroke cycle similar to typical diesel engines. The timing and duration of the air injection was controlled by a modified microcontroller. The energy transport, entropy generation, indicated power, and brake power of the engine were closely monitored by thermocouples, a pressure transducer and other devices. The results showed an almost constant temperature (with less than 2°C of temperature fluctuation) of the air released from the high pressure air tanks at 50 bars. Thus, there appeared to be heat transfer from the environmentto the air tanks at the rate of 787 W and an entropy generation rate of 2.79 WIK. While operating the air engine at the maximum brake power of 763 W at 460 rpm and an air injection pressure of 50 bars, the engine operated closely to adiabatic process and the entropy generation rate was 7.34 WIK. The efficiency according to the first law of thermodynamic analysis of the engine was about 27.9%, while the efficiency according to the second law of thermodynamics was 25.2%. The overall efficiency for air usage at 50 bars was determined according to the storage conditions; whereas, the results showed a significant drop in overall efficiency as the storage pressure condition increased
King Mongkut's University of Technology Thonburi. KMUTT Library
Address:
BANGKOK
Email:
info.lib@mail.kmutt.ac.th
Created:
2012
Modified:
2017-07-13
Issued:
2016-05-13
บทความ/Article
application/pdf
BibliograpyCitation :
The 3rd TSME International Conference on Mechanical Engineering (TSF 1021) 24-27 October 2012 6 p
CallNumber:
12004925
eng
©copyrights King Mongkut's University of Technology Thonburi
RightsAccess:
ใช้เวลา
0.038434 วินาที
Yuttachai Chareonittikul
| Title | Contributor | Type |
|---|---|---|
| Energy balance and entropy generation analysis of a compressed air engine
มหาวิทยาลัยเทคโนโลยีพระจอมเกล้าธนบุรี Yuttachai Chareonittikul ;J. Wongwiwat,;K. Jirapongsananurak;Wishsanuruk Wechsatol | บทความ/Article |
J. Wongwiwat
| Title | Contributor | Type |
|---|---|---|
| Energy balance and entropy generation analysis of a compressed air engine
มหาวิทยาลัยเทคโนโลยีพระจอมเกล้าธนบุรี Yuttachai Chareonittikul ;J. Wongwiwat,;K. Jirapongsananurak;Wishsanuruk Wechsatol | บทความ/Article |
K. Jirapongsananurak
| Title | Contributor | Type |
|---|---|---|
| Energy balance and entropy generation analysis of a compressed air engine
มหาวิทยาลัยเทคโนโลยีพระจอมเกล้าธนบุรี Yuttachai Chareonittikul ;J. Wongwiwat,;K. Jirapongsananurak;Wishsanuruk Wechsatol | บทความ/Article |
Wishsanuruk Wechsatol
| Title | Contributor | Type |
|---|---|---|
| Mathematical modeling of a solid oxide fuel cell with nearly spherical-shaped electrode particles
มหาวิทยาลัยเทคโนโลยีพระจอมเกล้าธนบุรี Penyarat Chinda;Somchai Chanchaona;Brault, P;Wishsanuruk Wechsatol | บทความ/Article | |
| Energy balance and entropy generation analysis of a compressed air engine
มหาวิทยาลัยเทคโนโลยีพระจอมเกล้าธนบุรี Yuttachai Chareonittikul ;J. Wongwiwat,;K. Jirapongsananurak;Wishsanuruk Wechsatol | บทความ/Article | |
| Amplitude of applied voltage required to disperse viscous droplets on top of a closed-typed electro-wetting on dielectric device with silver electrodes
มหาวิทยาลัยเทคโนโลยีพระจอมเกล้าธนบุรี Kreeta Sukthang;C. Pongsomboon ;Wishsanuruk Wechsatol ;Adisorn Tuantranont | บทความ/Article |