Thermodynamic modelling of absorption-resorption heating cycles with some new working pairs

Bhatt, MS and Srinivasan, K and Murthy, Krishna MV and Seetharamu, S (1992) Thermodynamic modelling of absorption-resorption heating cycles with some new working pairs. In: Heat Recovery Systems and CHP, 12 (3). pp. 225-233.

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Abstract

This paper presents the results of a thermodynamic cycle analysis of single stage resorption heat pump (RHP) and resorption heat transformer (RHT) cycles with the new working pairs R22-NMP and R22-DMA. The coefficients of performance (COP) are correlated with the low grade source temperature, temperature at which useful heat is obtained and ambient temperature. The COPs are in the range 1.20–1.60 for the RHP mode and 0.25–0.45 for the RHT mode. Absorber temperatures (useful temperatures) as high as 50°C in the RHP mode and 87°C in the RHT mode have been obtained. It is observed that absorption-resorption systems are inflexible in their range of operating temperature and necessitate a higher pump work as compared with simple single-stage absorption heating systems. However, single stage RHTs show higher temperature boosts than simple absorption heat transformers.

Item Type:	Journal Article
Publication:	Heat Recovery Systems and CHP
Publisher:	Elsevier science
Additional Information:	Copyright of this article belongs to Elsevier science.
Department/Centre:	Division of Mechanical Sciences > Mechanical Engineering
Date Deposited:	30 May 2011 05:28
Last Modified:	30 May 2011 05:28
URI:	http://eprints.iisc.ac.in/id/eprint/37781

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