Abstract
Five configurations of a 3-ton liquid desiccant cooling cycle were simulated and analyzed on a digital computer. Algebraic equations were developed for the dry bulbtemperatures and humidity ratios at different locations in the systems and solved using a finite difference scheme. The simulations were done at steady state and standard ASHRAE indoor and outdoor conditions. The study compared thermal performance of these five system configurations consisting of a direct evaporative cooler, indirect evaporative cooler(s), liquid desiccant packed dehumidifying tower, and air-to-air heat exchanger. Constant effectiveness of 0.85 and 0.9 were assumed for the direct evaporative cooler and air-to-air heat exchanger respectively. The performance of these five cycles is judged by the thermal Coefficient of Performance (COP). The Sensible Heat Ratio (SHR) is used to quantify the ratio of sensible cooling provided to the total cooling done (sensible plus latent).
Dhir, Rajesh (1995). Simulation and study of thermal performance of liquid desiccant cooling cycle configurations. Master's thesis, Texas A&M University. Available electronically from
https : / /hdl .handle .net /1969 .1 /ETD -TAMU -1995 -THESIS -D454.