Journal
Publisher
IOP PUBLISHING LTD
DOI: 10.1088/1755-1315/294/1/012032
Keywords
indoor environment quality; chilled water wall; climate zone
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Chilled water walls (CWWs) have been developed as a means of air cooling, dehumidifying, and air cleaning. Their operating performance is superior to that of a radiant cooling ceiling, which does not clean the air and reduce the dew water temperature. The CWW is connected to a compressor that chills the water, and the setup thus consumes much energy when operated all day. When integrated with a heat pump, the CWW can chill water on one side and heat water on the other side. Because the water temperature of the CWW is 10 degrees C-14 degrees C, the heat pump can simultaneously generate chilled water at 7 degrees C-10 degrees C and hot water at 50 degrees C. Additionally, indoor air pollutants are steadily removed by the thermal flow and flushed into the water tank by the water to clean the air. The dirty water can be cleaned using a filter and ultraviolet light. The heat pump integrated with a CWW supplies not only chilled water for air conditioning but also a domestic hot water supply, resulting in high energy efficiency due to multifunctionality.
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