Abstract
Water adsorbent AQSOA™ FAM-Z02 (Z02) coatings and pellets were evaluated in our custom-built lab-scale sorption chiller with two adsorber beds. Two finned-tube heat exchangers (HEX) (4.08 L) were coated with Z02 by Mitsubishi Plastics and compared with two other HEX that were packed with Z02 pellets. When tested with 15, 30, 30 and 90 °C operating temperatures for the evaporator, condenser, adsorption and desorption, and 5–30 min cycle times, the sorption chiller had a peak volumetric specific cooling power of 90 ± 5 kW/m3 with Z02-coated HEX compared to 59 ± 2 kW/m3 for HEX packed with Z02 pellets. The specific cooling power (SCP) and coefficient of performance (COP) were greater for Z02 coatings compared to pellets.
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