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District heating, district cooling and desalination using ammonia heat pumps.

Author(s) : PEARSON D. F., APPLETON S.

Summary

The global case for a lower carbon utilities industry is well known. Whether this is related to an excess of atmospheric CO2 or a predicted "peaking" of oil doesn't affect the scenario that fossil fuels are set to become more expensive. What options are available to major infrastructure project teams as they seek to optimise their future solutions? With the advent of large ammonia compressors capable of raising heat to over 90°C, district heating and district cooling using a naturally occurring working fluid, ammonia, becomes relatively simple. As energy can neither be created nor destroyed, this paper describes two similar processes that use the transfer of energy to achieve valuable utility solutions at both ends of the process by exploiting the working fluid twice. In doing so the carbon footprint of the process is vastly reduced. Throughout this paper there are numerous areas where expert theoretical application might take this technique even further forward. It is however insightful to remember how much had been achieved "practically", before 1824 when the theory of thermodynamics was only in it's infancy.

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Pages: 2010-1

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Details

  • Original title: District heating, district cooling and desalination using ammonia heat pumps.
  • Record ID : 2010-0940
  • Languages: English
  • Subject: General information
  • Source: 1st IIR International Conference on Sustainability and the Cold Chain
  • Publication date: 2010/03/29

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