Operational research of ground heat pump and passive air conditioning

This article presents a passive air conditioning sy stem using the lower source of the ground heat pump. Passive air conditioning uses the natural cold accumulated in the ground especially in the summer season. A hydraulic diagra m and the principle of passive air conditioning were presented in the text . The purpose of the measurement was to determine the cooling power, the characteris tic temperatures and the soil temperature distribution at the depth of 2 meters at t he ground excavated site of the spiral ground heat exchanger. Annual temperature distribut ions in the ground which directly affect annular cooling power were presented. Advantages and disadvantages of passive air conditioning have also been presente d.