- All Journals
- Al-Qadisiyah University
- Basrah University
- Kirkuk University
- Mosul University
- The Iraqi Borad for Medical Specialization
- University of Anbar
- University of Technology
- Al Mustafa University
- Al-Zahraa University for Women
- Alnoor University
- Kunooz University
- Misan University
- Ninevah University
- Tikrit University
- University of Al-Hamdaniya
- University of Kerbala
Performance Enhancement of the Vertical Double Pipe Heat Exchanger by Applying of Bubbling Generation on the Shell Side | ||
| Kirkuk Journal of Science | ||
| Article 1, Volume 13, Issue 1, 2018, Pages 156-171 PDF (0 K) | ||
| DOI: 10.32894/kujss.2018.142500 | ||
| Authors | ||
| Sheren A. Kaska; Hussein H. Habeeb; Rafeq A. Khalefa | ||
| Abstract | ||
| The performance of a vertical double pipe heat exchanger was analyzed experimentally under effect of bubble generation by air injection through an air diffuser has many hundreds of very small holes placed at the bottom of the vertical heat exchanger around the (inner) hot tube. The air is supplied by using a small compressor with an air flow meter, and a small boiler with a temperature controller which used for heating the hot fluid, the inlet and outlet temperatures are measured by using digital thermocouples, the tests are performed for parallel and counter flow configurations with different flow rates of cold fluid and air injection. The results show that the exergy loss was affected significantly by bubble generation with positive effects on (Heat Transfer Rate, Effectiveness, Number of Transfer Units and Overall Heat Transfer Coefficient). | ||
| Keywords | ||
| heat exchangers; bubble generation; performance improving; vertical heat exchangers; exergy loss | ||
|
Statistics Article View: 611 PDF Download: 459 |
||