Derived thermodynamic design data for heat pump systems operating on R11

A water to water heat pump specially designed and instrumented for research has been used to determine the actual coefficients of performance of R11 for condensing temperatures in the range 70°C to 104°C. 101 experimental points were obtained and these lie on a smooth curve with a standard deviation of 6.32 per cent. The results are compared with data previously obtained for R12, R22, R12B1 and R114 on the same equipment. R11 with its relatively high critical temperature of 198°C is potentially an attractive working fluid provided that it can be operated in conjunction with a lubricant which does not facilitate thermal breakdown.

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An experimental evaluation of R11 as a heat pump working fluid in comparison with some other working fluids

Ogbeide

El-Meniawy

Devotta

et al. 1983

Int. J. Energy Res.

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Utilization of geothermal waters for heating by heat pumps

Mečárik

Havelský

1989

Heat Recovery Systems and CHP

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Derived thermodynamic design data for heat pump systems operating on R11

Cited by 2 publications

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An experimental evaluation of R11 as a heat pump working fluid in comparison with some other working fluids

An experimental evaluation of R11 as a heat pump working fluid in comparison with some other working fluids

Utilization of geothermal waters for heating by heat pumps

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