Abstract: The present invention provides a radiant air conditioning system for a heat-producing device (1), comprising a compressor (4), a condenser (5), an expansion valve (6), and at least one radiant panel evaporator (2) which are connected through a connecting pipe to form a recycling refrigerant loop, wherein each of the radiant panel evaporators comprises a refrigerant pipe (22) and a radiant panel (21) which exchanges heat with the refrigerant pipe (22). The radiant air conditioning system further comprises at least one heat transfer plate (3), configured to perform radiant heat transfer with the heat-producing device (1) and transmit an amount of absorbed heat to the radiant panel (21). The present invention improves heat transfer effect between the radiant panel (21) and the heat-producing device (1), and is particularly suitable for cooling a plurality of densely distributed heat-producing devices (1).

Abstract: A radiation heat exchanging air conditioning system and a radiation heat exchanging ceiling thereof are disclosed. The air conditioning system includes a heat pump system (7) and a water circulation system (8), and water circulation system (8) includes a heat exchanging device (11) for water, a pump (9), a heat exchanging device (10) for air, a radiation heat exchanging ceiling (20) and air outlets (15). The heat is exchanged between the heat exchanging device (11) for water and the heat pump system (7). The radiation heat exchanging ceiling (20) includes a metal ceiling panel (1) and a heat exchanging coil (2), said heat exchanging coil (2) is installed on the poor thermal-conductivity coil brackets (4) mounted on the upper surface of the metal ceiling panel (1), thus leading to the short distance and no direct contact between the heat exchanging coil (2) and the metal ceiling panel (1).