TY - JOUR
TI - Heat pipe heat exchanger and its potential to energy recovery in the tropics
AU - Yau Yat H
AU - Ahmadzadehtalatapeh Mohammad
JN - Thermal Science
PY - 2015
VL - 19
IS - 5
SP - 1685
EP - 1697
PT - Article
AB - The heat recovery by the heat pipe heat exchangers was studied in the  tropics. Heat pipe heat exchangers with two, four, six, and eight numbers of  rows were examined for this purpose. The coil face velocity was set at 2 m/s  and the temperature of return air was kept at 24°C in this study. The  performance of the heat pipe heat exchangers was recorded during the one week  of operation (168 hours) to examine the performance data. Then, the collected  data from the one week of operation were used to estimate the amount of  energy recovered by the heat pipe heat exchangers annually. The effect of the  inside design temperature and the coil face velocity on the energy recovery  for a typical heat pipe heat exchanger was also investigated. In addition,  heat pipe heat exchangers were simulated based on the effectiveness-NTU  method, and their theoretical values for the thermal performance were  compared with the experimental results.