Year: 2019 | Month: March | Volume 12 | Issue 1
Performance of Thermo Hydraulic Designed Single Pass Earth Air Heat Exchanger
DOI:10.30954/0974-1712.03.2019.9
Abstract:
In present study thermo-hydraulic design method by Paepe and Janssens (2003) was illustrated and used for evaluation of single pass Earth- Air Heat Exchanger (EAHE) system. Such designed EAHE was installed at the research field of Soil and Water Engineering Department, Punjab Agricultural University, Ludhiana, India (75o88´E & 30o95´N). It consists of 42 m single PVC pipe of 0.25 m diameter buried at 3.5 m depth. The thermister 2k temperature sensors and Dl2 data logger were used for data recording. The maximum and minimum tube efficiencies were obtained at 2.3 and 24 m/s, respectively. The thermo-hydraulic designed earth air heat exchanger performed well as observed tube efficiency was near to designed efficiency. It was also observed that as velocity increases the tube efficiency decreases. The method proposed by Paepe and Janssens (2003) was simple, fast and reliable for installation of EAHE system in field too.
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