Share

Actual effectiveness of heat pump systems for energy conservation in buildings.

Author(s) : SAWACHI T., MIURA H., HOSOI A., et al.

Summary

According to the Japanese national statistics of CO2 emission due to energy use, the sectors for commercial and residential buildings account for one third of the total and have increased by more than 40% in 2007 since 1990. The application of the heat pump technology is one of the promising counter measures, but its effectiveness for energy conservation in buildings has not yet been sufficiently quantified in that there had been a gap between its actual performance and ratings by equipment standards. It is not the fault of the technology itself, but the new additional framework common to various options for energy conservation is absolutely needed in the next decade. Especially final decision makers in the design of buildings and their energy systems need such framework in order to find the most appropriate option for the design conditions of their buildings, not only from the view point of energy conservation but also from that of lifecycle costing. As a candidate for such new additional framework, one example for residential buildings, which is applied in a Japanese newly enforced energy regulation managed jointly by METI and MLIT, is presented with its core philosophy and some detailed proposals on how to estimate the actual energy consumption by heat pumps for space heating/cooling and domestic hot water.

Details

  • Original title: Actual effectiveness of heat pump systems for energy conservation in buildings.
  • Record ID : 2011-0337
  • Languages: English
  • Source: Measures to address climate change. 2010 International Symposium on Next-generation Air Conditioning and Refrigeration Technology: February 17-19, Tokyo, Japan.
  • Publication date: 2010/02/17

Links


See other articles from the proceedings (75)
See the conference proceedings

Indexing