The heat transfer and pressure loss characteristics of a heat exchanger for recovering latent heat (the heat transfer and pressure loss characteristics of the heat exchanger with wing fin) |
| |
| Authors: | Kiyoshi Kawaguchi Kenichi Okui Takahiro Shimoura Takaki Ohkouchi Hiroyuki Osakabe Tosihide Ninagawa |
| |
| Affiliation: | 1. Faculty of Engineering, University of Toyama, Japan;2. Graduate student, Graduate School of Science and Engineering, University of Toyama, Japan;3. Denso Corporation, Kariya, Japan |
| |
| Abstract: | In recent years the requirement for reduction of energy consumption has been increasing to solve the problems of global warming and the shortage of petroleum resources. A latent heat recovery type heat exchanger is one of the effective methods of improving thermal efficiency by recovering latent heat. This paper described the heat transfer and pressure loss characteristics of a latent heat recovery type heat exchanger having a wing fin (fin pitch: 4 mm, fin length: 65 mm). These were clarified by measuring the exchange heat quantity, the pressure loss of heat exchanger, and the heat transfer coefficient between outer fin surface and gas. The effects of condensate behavior in the fins on heat transfer and pressure loss characteristics were clarified. Furthermore, the equations for predicting the heat transfer coefficient and pressure loss which are necessary in the design of the heat exchanger were proposed. ©2007 Wiley Periodicals, Inc. Heat Trans Asian Res, 36(4): 215–229, 2007; Published online in Wiley InterScience ( www.interscience.wiley.com ). DOI 10.1002/htj.20154 |
| |
| Keywords: | heat exchanger heat transfer pressure loss latent heat |
|
|
