A novel concept for maximizing the cooling capacity of an adsorption chiller via process time control

High-grade energy demand for space cooling purposes is one of the most rapidly growing over the years and is expected to continue increasing further. Adsorption chillers provide an eco-friendly alternative for space cooling utilizing heat energy from waste hot water discharged from the primary power generation unit. Dynamic simulation of an adsorption chamber operating in an adsorption refrigeration system is performed for various adsorption to desorption time ratios and analyzed for their effect on performance and cooling capacity. A time ratio of 0.5 resulted in a desirable scenario having a tremendous increase in cooling capacity. Employing the three-chamber adsorption chiller operating at a ? of 0.5 and t of 700 s resulted in a 25.9% improvement in the refrigeration capacity and a 7.4% increase in the performance. Moreover, the maximum SCC also improved to 134.40 from 101.62 of the conventional chillers. However, these improvements required a significant increase in heating from 7.328 kW to 12.443 kW. This study will be extended up to 7-bed configuration adsorption chiller for various time ratios and time constants while comparing the performance and the cooling capacity of each configuration. Moreover, exergy analysis will be performed for detailed insights into energy conservation opportunities in the different bed configurations.