This work deals with the use of adsorption refrigerant cycles driven by waste heat of near ambient temperature. A parametric study was conducted by computer simulation to determine the effects of operating conditions on cooling output and coefficient of performance (COP). A simulation program verified the influence of operating temperatures (hot and cooling water), water flow rates, and adsorption-desorption cycle times. The most influential parameter is the operating temperatures, followed by water flow rates. Cycle time is less influential in quantitative terms but qualitatively is very important.

KEYWORDS: year 1995, calculating, silica, water, adsorption, desorption, refrigeration, cyclic, operations, cooling, output, coefficient of performance, heat recovery, ambient temperature, water flow, flow rate, temperature