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Experimental and Numerical Study of Heat Pipe Heat Exchanger with Individually Finned Heat Pipes
| Content Provider | MDPI |
|---|---|
| Author | Grzegorz, Górecki Marcin, Łęcki Gutkowski, Artur Norbert Andrzejewski, Dariusz Warwas, Bartosz Kowalczyk, Michał Romaniak, Artur |
| Copyright Year | 2021 |
| Description | The present study is devoted to the modeling, design, and experimental study of a heat pipe heat exchanger utilized as a recuperator in small air conditioning systems (airflow ≈ 300–500 $m^{3}$/h), comprised of individually finned heat pipes. A thermal heat pipe heat exchanger model was developed, based on available correlations. Based on the previous experimental works of authors, refrigerant R404A was recognized as the best working fluid with a 20% heat pipe filling ratio. An engineering analysis of parametric calculations performed with the aid of the computational model concluded 20 rows of finned heat pipes in the staggered arrangement as a guarantee of stable heat exchanger effectiveness ≈ 60%. The optimization of the overall cost function by the “brute-force” method has backed up the choice of the best heat exchanger parameters. The 0.05 m traversal (finned pipes in contact with each other) and 0.062 m longitudinal distance were optimized to maximize effectiveness (up to 66%) and minimize pressure drop (less than 150 Pa). The designed heat exchanger was constructed and tested on the experimental rig. The experimental data yielded a good level of agreement with the model—relative difference within 10%. |
| Starting Page | 5317 |
| e-ISSN | 19961073 |
| DOI | 10.3390/en14175317 |
| Journal | Energies |
| Issue Number | 17 |
| Volume Number | 14 |
| Language | English |
| Publisher | MDPI |
| Publisher Date | 2021-08-27 |
| Access Restriction | Open |
| Subject Keyword | Energies Heat Pipe Heat Exchanger Wickless Heat Pipe Heat Transfer Individually Finned Tubes |
| Content Type | Text |
| Resource Type | Article |
