Adoni, Abhijit A and Vaidya, Jasvanth S and Ambirajan, Amrit and Kumar, Dinesh and Krishnaswamy, Badarinarayana and Dutta, Pradip (2012) Evaporation Heat Transfer Coefficient in a Capillary Pumped Loop and Loop Heat Pipe for Different Working Fluids. In: Heat Transfer Engineering, 33 (9, SI). pp. 765-774.
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Capillary pumped loop (CPL) and loop heat pipe (LHP) are passive two-phase heat transport devices. They have been gaining importance as a part of the thermal control system of spacecraft. The evaporation heat transfer coefficient at the tooth-wick interface of an LHP or CPL has a significant impact on the evaporator temperature. It is also the main parameter in sizing of a CPL or LHP. Experimentally determined evaporation heat transfer coefficients from a three-port CPL with tubular axially grooved (TAG) evaporator and a TAG LHP with acetone, R-134A, and ammonia as working fluids are presented in this paper. The influences of working fluid, hydrodynamic blocks in the core, evaporator configuration (LHP or CPL), and adverse elevation (evaporator above condenser) on the heat transfer coefficient are presented.
| Item Type: | Journal Article |
|---|---|
| Publication: | Heat Transfer Engineering |
| Publisher: | Taylor and Francis Group |
| Additional Information: | Copyright of this article belongs to Taylor and Francis Group. |
| Department/Centre: | Division of Mechanical Sciences > Mechanical Engineering |
| Date Deposited: | 20 Apr 2012 12:38 |
| Last Modified: | 20 Apr 2012 12:38 |
| URI: | http://eprints.iisc.ac.in/id/eprint/44360 |
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