The use of waste heat of low temperatures is an important problem from the environmental considerations. Despite the advent of the micro-turbines and the fuel-cells systems, the adsorption cycles is deemed to have a distinctive advantage over these systems because of their ability to produce cooling by using low temperature waste heat and also being absolutely benign for the environment. With a novel design, the range of outlet and inlet temperatures of hot water is 80 to 50°C, respectively, where the heat recovery can be maximized. Thus, there is needed to develop such adsorption chillers for the above-mentioned objectives. The 4-bed adsorption chiller is one such chiller that can be adapted to a large heat recovery, namely a larger temperature difference as 20°C between the heat input and outlet. In addition, the multi-bed chiller delivers a steady cooling rate at a high coefficient of performance (COP) and yet with minimal peak temperature oscillation when compared to a conventional 2-bed chiller. This paper presents the performance testing of a prototype 4-bed adsorption chiller with a cooling capacity of 5 RT when supplied with a heat source of 80°C and an estimated cooling COP larger than 0.6.
展开▼
