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Publication
Featured researches published by Kazuhisa Takemura.
Transactions of the Japan Society of Mechanical Engineers. B | 2005
Ryohei Yokoyama; Takeshi Shimuzu; Kazuhisa Takemura; Koichi Ito
Heat pumps using CO2 as a natural refrigerant have been developed and are expected to contribute to energy saving in hot water supply. In residential applications, CO2 heat pumps are used in combination with hot water storage tanks. The objective of this series of papers is to analyze the overall performance of a hot water supply system composed of a CO2 heat pump and a hot water storage tank by numerical simulation. In the 1st report, a simulation model of a CO2 heat pump is created based on thermodynamic equations and measured data on an exsting CO2 heat pump. In addition, the performance of a CO2 heat pump is clarified in relation to the air temperature as well as the inlet and outlet water temperatures.
Energy | 2007
Ryohei Yokoyama; Takeshi Shimizu; Koichi Ito; Kazuhisa Takemura
Energy | 2010
Ryohei Yokoyama; Tetsuya Wakui; Junya Kamakari; Kazuhisa Takemura
Jsme International Journal Series B-fluids and Thermal Engineering | 2006
Ryohei Yokoyama; Takeshi Shimizu; Kazuhisa Takemura; Koichi Ito
Transactions of the Japan Society of Refrigerating and Air Conditioning Engineers | 2010
Ryohei Yokoyama; Yasuhiro Kohno; Tetsuya Wakui; Kazuhisa Takemura
Journal of Environment and Engineering | 2008
Ryohei Yokoyama; Shinsuke Okagaki; Tetsuya Wakui; Kazuhisa Takemura
Transactions of the Japan Society of Mechanical Engineers. B | 2005
Ryohei Yokoyama; Takeshi Shimizu; Kazuhisa Takemura; Koichi Ito
The Proceedings of Conference of Kansai Branch | 2013
Ryosuke Kato; Ryohei Yokoyama; Tetsuya Wakui; Kazuhisa Takemura
The Proceedings of the Thermal Engineering Conference | 2011
Ryohei Yokoyama; Ryosuke Katoh; Tetsuya Wakui; Kazuhisa Takemura
The Proceedings of Conference of Kansai Branch | 2011
Yasuhiro Kohno; Ryohei Yokoyama; Tetsuya Wakui; Kazuhisa Takemura
