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Appl. Sci. 2012, 2(4), 709-725; doi:10.3390/app2040709

Article

Performance Evaluation of a Lithium-Chloride Absorption Refrigeration and an Assessment of Its Suitability for Biomass Waste Heat

Sacha Oberweis*  and Tariq Al-Shemmeri

School of Engineering, Staffordshire University, Stafford, ST18 0AD, UK

* Author to whom correspondence should be addressed.

Received: 1 August 2012; in revised form: 19 September 2012 / Accepted: 3 October 2012 / Published: 10 October 2012

(This article belongs to the Special Issue Renewable Energy)

Download PDF Full-Text [1878 KB, uploaded 10 October 2012 16:42 CEST]

Abstract: This paper presents a computer model that will evaluate the performance of a thermo-chemical accumulator. The model is based on operational data such as temperatures and flow rates. The ultimate goal for this model is to estimate the coefficient of performance (COP) of this unit when run on hot water from biomass combustion as the heat source. The outputs of the model are verified by comparing the simulation of the actual machine with published experimental data. The computed results for cooling COP are within 10% of the measured data. The simulations are all run for heat load temperatures varying between 80 °C and 110 °C. As expected, simulation results showed an increase in COP with increased heat source temperatures. The results demonstrate that the potential of combined solar and biomass combustion as a heat source for absorption cooling/heating in climates with low solar radiation can be coupled with biomass waste.

Keywords: Lithium-Chloride; absorption; computer model; biomass; waste heat recovery

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