PDF Publication Title:
Text from PDF Page: 008
J. Stene / International Journal of Refrigeration 28 (2005) 1259–1265 1265 References Fig. 7. The estimated SPF at monovalent operation for the HFC heat pump system, the prototype CO2 heat pump system and the improved CO2 heat pump system. the most energy efficient brine-to-water heat pump systems as long as: (1) the heating demand for hot water production constitutes at least 25% of the total annual heating demand of the residence, (2) the return temperature in the space heating system is about 30 8C or lower, (3) the city water temperature is about 10 8C or lower, and (4) the exergy losses in the DHW tank are small. The latter requires a special tank design in order to minimize mixing and conductive heat transfer between the hot and cold water during the tapping and charging (heating) periods. [1] R. Aarlien, On the design, efficiency and market potential of residential air conditioning and heat pump units with CO2 as working fluid, Doctoral Thesis at the Norwegian University of Science and Technology, 2004 [ISBN 82-471-5309-2]. [2] B. Brandes, H. Kruse, Hochtemperatur Hauswa ̈rmepumpen m i t C O 2 a l s K a ̈ l t e m i t t e l , K I L u f t - u n d K a ̈ l t e t e c h n i k 7 (2000) 311–315. [3] B. Kerherve, D. Clodic, Energy efficiency comparisons for heat pumps working with CO2 and R-407C, Fifth IIR/IIF Gustav Lorentzen conference on natural working fluids, China, 2002. p. 237–244 [ISBN 2-912149-29-4]. [4] Y. Ozaki, H. Takeuchi, T. Hirata, Regeneration of expansion energy by ejector in CO2 cycle, Sixth IIR/IIF Gustav Lorentzen conference on natural working fluids, Glasgow, Scotland (2004). [ISBN 2-913149-34-0] [5] R. Rieberer, H. Halozan, CO2 heat pumps in controlled ventilation systems, Third IIR/IIF Gustav Lorentzen conference on natural working fluids, Norway, 1998. p. 212–222 [ISBN 2-903633-97-5]. [6] M. Saikawa, K. Hashimoto, Development of a prototype CO2 heat pump water heater for residential use, Fourth IIR/IIF Gustav Lorentzen conference on natural working fluids, USA, 2000. p. 97–108 [ISBN 2-913149-16-2]. [7] J. Stene, Residential CO2 heat pump system for combined space heating and hot water heating. Doctoral Thesis at the Norwegian University of Technology and Science, 2004 [ISBN 82-471-6316-0]. [8] VDI Heat Atlas (VDI Wa ̈rme Atlas), VDI-Verlag GmbH, Du ̈sseldorf, 1993 [ISBN 3-18-400915-7]. View publication statsPDF Image | Residential CO2 heat pump system space and hot water heating
PDF Search Title:
Residential CO2 heat pump system space and hot water heatingOriginal File Name Searched:
Article_IIR-Journal_STENE_2005.pdfDIY PDF Search: Google It | Yahoo | Bing
CO2 Organic Rankine Cycle Experimenter Platform The supercritical CO2 phase change system is both a heat pump and organic rankine cycle which can be used for those purposes and as a supercritical extractor for advanced subcritical and supercritical extraction technology. Uses include producing nanoparticles, precious metal CO2 extraction, lithium battery recycling, and other applications... More Info
Heat Pumps CO2 ORC Heat Pump System Platform More Info
CONTACT TEL: 608-238-6001 Email: greg@infinityturbine.com (Standard Web Page)