Development and Experimental Study of a 5 kW Cooling Capacity Ammonia-Water Absorption Chiller
Abstract
A new and improved version of a low capacity ammonia-water absorption chiller was built and tested. This article presents how architecture and design optimization were performed to achieve enhanced performances compared to former prototype. The new chiller was first tested on an experimental test bench and then connected to an actual office air-conditioning system for a real solar cooling field test. The article shows, firstly a comparison between the former and the new chiller, secondly it presents a chiller’s starting in nominal conditions and finally it develops chiller’s performances according to operating temperatures on the experimental test bench. Results show better performances not only for cooling capacity and thermal COP but also for repeatability and general stability thanks to a re-engineered control strategy.
Keywords
Ammonia-water absorption chiller, Design, Experimental results.