For moderate potential geothermal energy, the hot spring
temperature between 70-80ºC has been suggested to use in cooling
process. The cooling unit in this study is absorption cooling system
as shown a schematic diagram in Figure 4. A prototype of 10 kW
ammonia-water absorption chiller is designed and constructed to freeze
the agricultural products in a well- insulated room. Mae Jan hot spring,
Chiang Rai, Thailand with having the hot spring temperature around
98ºC from 56 m of slim hole is used to test the cooling performance of
the absorption chiller. The descriptions and photographs of the testing
unit are shown in Table 2 and Figure 7, respectively. For the testing
results, the geothermal energy potential will be presented with the
absorption technique by the physical data of hot spring in Thailand.