Measuring and Predicting the In-Ground Temperature Profile for Geothermal Energy Systems in the Desert of Arid Regions

Instead of fossil fuels, clean renewable energy resources are being used to meet space heating and cooling needs, reduce global warming air pollution worldwide. In the desert Arabian Peninsula, extensive solar irradiance drastic variations in temperatures (daily and/or seasonally) common; thus, geothermal a promising solution that is nearly independent weather fluctuations. Due lack information about in-ground temperature profiles these regions, use for domestic applications very limited. Therefore, this study aimed measure (Tg) up 3.5 m depth one year. difficulty digging ground (i.e., gravelly sand; rocky, dry soil), numerical equations were adopted simulate > 3 m. These validated by comparing measured simulated values Tg depths ? under extreme conditions. The validation yielded mean absolute error (EMA) 1.2 °C root square (ERMS) 1.42 °C. measurements showed at depth, was 32 summer 29 winter. simulation increased with winter decreased became constant as 30 13 throughout year undisturbed (UGT)). This would provide considerable capacity if an earth-to-air heat exchanger implemented arid regions where ambient exceed 47 on days drop below 10 nights. theoretical prediction using proposed useful tool designers who effects indoor regions.