A vapour re-compression heat pump using liquidised CaCl2/H2O/NH3 and CaCl2/NaSCN/NH3 systems for thermochemical energy storage

Riffat, Saffa; Knight, J.R.; Skelton, John

doi:10.1016/0890-4332(87)90133-5

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1992

1997

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Cited by 3 publications

(1 citation statement)

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“…Early work on adsorption heat pumps was conducted using ammonia/calcium chloride (NH /CaCl ) and ammonia/strontium chloride (NH /SrCl ) pairs (Swartman et al, 1982). Significant research work on chemical/compressor heat pumps has been carried out by Riffat et al (1987) and Riffat (1991). Several refrigerant/adsorbent combinations including NH /CaCl and CaCl /CH NH (methylamine) were examined.…”

Section: Introductionmentioning

confidence: 99%

Adsorption Heat Pump Using HFC Refrigerants

Riffat

Williams

Corr³

1997

Int. J. Energy Res.

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Section: Introductionmentioning

confidence: 99%

Adsorption Heat Pump Using HFC Refrigerants

Riffat

Williams

Corr³

1997

Int. J. Energy Res.

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A storage heat pump using an ‘ozone-friendly’ refrigerant

Riffat

Shankland

Nicholson³

1992

Int. J. Energy Res.

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The paper describes the integration of a chemical and a vapour‐compression heat pump for energy storage applications. The vapour‐compression system is designed to operate using the UK cheap rate ‘Economy 7’ electricity tariff. The system is characterized thermodynamically using various refrigerant/absorbent pairs in the chemical storage circuit and an ozone‐friendly refrigerant, R134a, in the vapour‐compression circuit. Results indicate that the H2O/Na2S pair provides a high energy storage density and is the most suitable for use in this system. The paper also describes the design features of a domestic‐sized version of this heat pump system. Air in the sunspace (conservatory) of a house was used as a heat source for the heat pump.

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Integration of absorption and vapour-compression systems

Riffat

Shankland

1993

Applied Energy

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A vapour re-compression heat pump using liquidised CaCl2/H2O/NH3 and CaCl2/NaSCN/NH3 systems for thermochemical energy storage

Cited by 3 publications

References 10 publications

Adsorption Heat Pump Using HFC Refrigerants

Adsorption Heat Pump Using HFC Refrigerants

A storage heat pump using an ‘ozone-friendly’ refrigerant

Integration of absorption and vapour-compression systems

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