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Critoph, Robert E.; Metcalf, Steven J.; Tamainot-Telto, Zacharie (2010)
Publisher: Taylor & Francis Inc.
Languages: English
Types: Article
Subjects: TJ, TL
A prototype compact sorption generator using an activated-carbon ammonia pair based on a plate heat exchanger concept has been designed and built at Warwick University. The novel generator has low thermal mass and good heat transfer. The heat exchanger uses Nickel brazed shims and spacers to create adsorbent layers only 4 mm thick between pairs of liquid flow channels of very low thermal mass. The prototype sorption generator manufactured has been evaluated under the EU car air conditioning testing conditions. While driven with waste heat from the engine coolant water (at 90°C), a pair of the current prototype generators (loaded with about 1 kg of a carbon in each of two beds) has produced an average cooling power of 1.6 kW with 2 kW peaks.
  • The results below are discovered through our pilot algorithms. Let us know how we are doing!

    • [1] Mola, S., Centro Richerche Fiat, private communication.
    • [2] Critoph, R. E. and Metcalf, S. J. - Specific cooling power intensification limits in carbon-ammonia adsorption refrigeration systems - Applied Thermal Engineering, Vol. 24, Issues 5- 6, pp. 661-679, 2004.
    • [3] Metcalf, S. J. - Gas-fired adsorption heat pump for domestic gas boiler replacement - International Heat Powered Cycles Conference (HPC 2006), Paper No 06137, Newcastle, UK, September 2006.
    • [4] Holman, J.P. Heat transfer, in: SI Units, seventh ed., McGraw-Hill, 1992, p. 289.
    • [5] Critoph, R.E., 'Adsorption Refrigerators and Heat Pumps' from 'Carbon Materials for Advanced Technologies', ed. T.D. Burchell, Elsevier, 1999
    • [6] Dubinin M.M., Astakhov V.A. Adv. Chem. Ser. 102, 69, 1970.
    • [7] Critoph, R.E., Lynch, P., Metcalf S.J. and Tamainot-Telto, Z.- Expanded natural graphite - Active carbon composite for adsorption heat pumps - International Symposium on Innovative Materials for Processes in Energy Systems, Tokyo (Japan), Paper A044, October 2007.
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