ABSTRACT

Ammonia is extensively used in adsorption cooling systems, especially with metal chloride or metal chloride composite adsorbents. Zeolite-water is one of the first working pairs to be investigated for adsorption cooling applications. Silica gel-water is one of the most widely used working pairs for adsorption cooling applications. It is an adsorption working pair that can exploit industrial waste heat to provide cooling. Chen et al. experimentally investigated the performance of a compact silica gel-water adsorption chiller. Vodianitskaia et al. experimentally investigated the adsorption kinetics and the overall performance of a single-bed adsorber with silica gel-water. Wang and Zhang simulated the performance of a multi-cooling tubes adsorption heat pump. Each cooling tube can be considered as a separated adsorption unit, with the adsorber on the top side, the plain tube condenser in the middle, and the evaporator at the bottom part of the cooling tube.