Sugawara A., Nakamikawa S., Kageyama M., Yamazaki S., Abe N., Itou T., Tsurumaki A., Kawasaki K.
Niigata University, JP
Keywords: air cooling system, COP, temperature, vacuum pump, water
This paper aims for construction of a small, clean air cooling system using a water refrigerant and examines it experimentally. We offer a basic report for realization of the non-Freon air-cooling system using only water as a refrigerant. An experimental device consists of two groups, the first stage is composed a vacuum pump and a vacuum container of about 60 liters in volume, and the second stage has two heat exchangers (the one is heat load) and a water circulation pumps. The temperature characteristics of each place are measured by thermocouples. An air-conditioner indoor unit or a heater for as heat load was used; the air conditioning measurement and the energy were measured, respectively. Consequently, in air-cooling system used only water refrigerant, the ability to cool a room air enough was provided. The development of a new vacuum pump which can exhaust a large amount of water vapor is introduced as an appendix.
Journal: TechConnect Briefs
Volume: 4, Technical Proceedings of the 2007 NSTI Nanotechnology Conference and Trade Show, Volume 4
Published: May 20, 2007
Pages: 652 - 655
Industry sector: Energy & Sustainability
Topic: Materials for Oil & Gas
ISBN: 1-4200-6376-6