Analysis of indoor environment and insulation performance of residential house with double envelope vacuum insulation panels

Authors

  • Takao Katsura Division of Environmental Engineering, Faculty of Engineering, Hokkaido University, Sapporo, Japan
  • Tomoya Ohara Division of Human Environmental Systems, Graduate School of Engineering, Hokkaido University, Sapporo, Japan
  • Taichi Kamada Division of Human Environmental Systems, Graduate School of Engineering, Hokkaido University, Sapporo, Japan
  • Katsunori Nagano Division of Environmental Engineering, Faculty of Engineering, Hokkaido University, Sapporo, Japan
  • Saim Memon Solar Thermal Vacuum Engineering Research Group, London Centre for Energy Engineering, School of Engineering, London South Bank University, London, United Kingdom

DOI:

https://doi.org/10.37934/stve.3.1.1528

Keywords:

Vacuum insulation panels, Double envelope, Residential house, Japan

Abstract

Double envelope vacuum insulation panels (VIPs) have a possibility to significantly increase the service lifetime. In this paper, double envelope VIPs were produced and installed in the residential house. The performance of installed VIPs was evaluated by using the measuring data of heat flux meter. In addition, the total energy, the heating load and the indoor thermal environment of this house were measured and analysed. The average heating load and the average temperature difference between room temperature and ambient air temperature on the representative day was 2.49 kW and 29.9 oC, respectively. The heat loss coefficient per floor area was estimated as 0.69 W/(m2K) and it was almost the same as the value calculated at the time of design. The result of indoor environment measurement showed that the room temperature was maintained at around 20 oC and PMV was -0.5 oC or higher although the outside air temperature fluctuated between -5 oC and -10 oC. The effective thermal conductivities of double envelop VIPs were all estimated as 0.01 W/(mK) or less. It is considered that the insulation performance of the vacuum insulation panels is maintained.

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Published

2021-08-25

How to Cite

Takao Katsura, Tomoya Ohara, Taichi Kamada, Katsunori Nagano, & Saim Memon. (2021). Analysis of indoor environment and insulation performance of residential house with double envelope vacuum insulation panels . International Journal of Solar Thermal Vacuum Engineering, 3(1), 15–28. https://doi.org/10.37934/stve.3.1.1528

Issue

Section

Research Articles