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Reintroduction of cryogenic refrigeration for cold transport.

Author(s) : PEDOLSKY H., LABAU R.

Summary

The refrigerated product transport industry is actively looking for alternative approaches to present day diesel fuelled, electro-mechanical refrigeration systems. Alternative systems look to reduce CO2 emissions to meet operational criteria of minimal use of fossil fuels and for compliance with Kyoto Protocol criteria for elimination of HCFCs and their derivatives. Ideally the approaches should also minimize noise generation and be cost competitive. Forty years ago there was a significant attempt to move to on-board cryogenic refrigeration alternatives. At the time the driver was not environmental sustainability issues as it is today, rather that cryogenic systems offered simpler more reliable functionality. The cryogenic manufacturing industry has expanded its production and distribution capability, with reliable, cost effective nitrogen supply in the 50 US states and virtually every country in the developed world. The cost of cryogenic fluids has proven to be extremely stable in a global economy which has seen the cost of fossil fuels increase and vary significantly. Domestic supply of liquid nitrogen minimizes dependence on foreign suppliers of fossil fuels. Cryogenic production costs are based predominately on the cost of electricity. Most importantly, the use of cryogenic fluids has a significantly lower effect on the environment from both global warming and ozone depletion standpoints. This includes the total effects resulting from the production of the fluids. There is data which provides a comparison of carbon footprints for a diesel driven vs. nitrogen refrigerated trailer cooling system on an annualized basis.

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Details

  • Original title: Reintroduction of cryogenic refrigeration for cold transport.
  • Record ID : 2010-2043
  • Languages: English
  • Publication date: 2010/07/12
  • Source: Source: Proc. 2010 int. Refrig. Air Cond. Conf., Purdue Univ.
    n. 2137; 8 p.; fig.; photogr.; tabl.

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