Current State and Future of Refrigerants for Refrigeration and Air Conditioning

  • Kagawa, Noboru (Department of Mechanical Systems Engineering National Defense Academy)
  • 발행 : 2007.12.30

초록

Refrigeration and air-conditioning equipments are indispensable products in this civilized society. However, discharged refrigerants used in the equipments and exhausted carbon dioxide to drive the refrigeration and air-conditioning equipments are related to serious environmental problems and energy problems. Especially, the destroyed ozonosphere by the discharged refrigerants and the increased normal temperature by carbon dioxide and fluorocarbon refrigerants (green house gases) are sounded as serious global problems. For alleviating these problems, environmental-friendly refrigeration and air-conditioning equipments must be developed and will spread soon. To develop new equipment, a suitable refrigerant for each usage must be presented. In this paper, the current state of refrigerants was introduced. And, thermophysical properties of the refrigerants were introduced briefly. From the properties, the refrigerants and refrigeration cycles are promising to be used in the future, were proposed

키워드

참고문헌

  1. I.I.R., 1995, 11th Informatory Note on CFCs, HCFCs and Refrigeration -Refrigeration and Greenhouse Effect: GWP, TEWI, or COP?, I.I.R
  2. Japanese Association of Refrigeration (JAR), 2006, Thermophysical Properties of Refrigerants, Chlorodifluoromethane (R22), JAR (1975), or JSRAE, Re-frigeration Cycle Calculation Program Software, JSRAE
  3. JSRAE, 2005, JSRAE Thermodynamic Tables Vol.1,'JARef HFCs and HCFCs', Ver. 2, JSRAE
  4. Lemmon, E. W., McLinden, M. O., Huber, M. L., 2002, NIST Standard Reference Database 23, NIST Reference Fluid Thermodynamic and Transport Properties Database (REFPROP): Version 7.0, NIST
  5. Tillner-Roth, R., Li, J., Yokozeki, A., Sato, H., and Watanabe, K., 1998, Thermodynamic Properties of Pure and Blended Hydrofluorocarbon (HFC) Refrigerants, JSRAE
  6. Japanese Association of Refrigeration (JAR), 1986, Thermophysical Properties of Refrigerants, Azeotrope of R22 and R115 (R502), JAR
  7. JSRAE, 2006, p-h Diagrams of Iso-butane and Propane, JSRAE, or JSRAE, 2006, Natural Re-frigerant Program Software, JSRAE
  8. JSRAE, 2003, p-h Diagrams of Iso-butane and Propane, JSRAE, or JSRAE, or ref. 4), or JSRAE, 2006, Natural Refrigerant Program Software, JSRAE
  9. JSRAE, 2006, p-h Diagrams of Carbon dioxide, JSRAE, or JSRAE, 2006, Natural Refrigerant Program Software, JSRAE
  10. Kagawa, N., Uematsu, m, Watanabe, K., 1990, Trans. of JAR, Vol.7, pp.43 (in Japanese)
  11. Kagawa, N., Uematsu, M, Watanabe, K.,: Trans. of JAR, Vol. 8, pp.43 (1991) (in Japanese)
  12. JSRAE, Reito-Kucho-Binran (Handbook of Re-frigeration and Air Conditioning) Fundamentals, JSRAE (to bo published in 2007)
  13. Kagawa N., Higashi, Y., Okada, M., Murakami, K., Ichikawa, H., Tanaka, N., Kayukawa, Y., 2005, Reito, Vol.80, pp.31-, JSRAE (in Japanese)