TEMPERATURE CONTROL INSIDE STEEL CABINET IN OPEN AIR USING UNDERGROUND HEAT SOURCE

摘要

This research aims to develop temperature control system for a cabinet which is set up in outfield and has heat source inside. Underground heat source was utilized for this system with steel pipes embedded into underground and water as working fluid. The cabinet was cooled the in summer season and warmed in winter season. The experimental results show that this system can favorably control the inside air temperature of the cabinet in summer and winter season with relatively high COP. The results of numerical simulation using only meteorological data show good agreements with experimental data in summer and winter season. The results of numerical simulation where some parameters such as pipe distance, diameter, and length were changed show the effect of these parameters on performance of the system.