Experimental study on effect of low humidity prevention strategy in winter in highly insulated and airtight house

Tomonari Chiba, Yoichi Sakurai, Zhang Huibo, Rie Takaki, Sounghun Yun, Hiroshi Yoshino

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

As highly insulated and airtight houses have built popularly, the problem which indoor air becomes low humidity in winter, is paid attention. The problem is caused by rise of heating level and increase of ventilation amount by mechanical ventilating equipments, etc. 1) Then, to clarify the actual condition of indoor low humidity in winter, we monitored the actual humidity environment in 29 occupied houses in the Tohoku region and Niigata, Japan, from 2001 to 2006. As the result, it is found that the indoor low humidity in winter is a common problem regardless of the house condition. And low humidity prevention strategy is necessary for most of the houses in winter. 2) Then, to estimate the quantitative effects of various low humidity prevention strategies, we performed experiments both in the laboratory scale house and the occupied houses. As the result, we quantitatively estimated the humidity rise due to each low humidity prevention strategies such as Total heat exchanger, Foliage plant, Drying laundry, Humidifier, Opening bathtub, and Humidity controlling material.

Original languageEnglish
Title of host publicationIAQVEC 2007 Proceedings - 6th International Conference on Indoor Air Quality, Ventilation and Energy Conservation in Buildings
Subtitle of host publicationSustainable Built Environment
Pages295-301
Number of pages7
Publication statusPublished - 2007 Dec 1
Event6th International Conference on Indoor Air Quality, Ventilation and Energy Conservation in Buildings: Sustainable Built Environment, IAQVEC 2007 - Sendai, Japan
Duration: 2007 Oct 282007 Oct 31

Publication series

NameIAQVEC 2007 Proceedings - 6th International Conference on Indoor Air Quality, Ventilation and Energy Conservation in Buildings: Sustainable Built Environment
Volume1

Other

Other6th International Conference on Indoor Air Quality, Ventilation and Energy Conservation in Buildings: Sustainable Built Environment, IAQVEC 2007
CountryJapan
CitySendai
Period07/10/2807/10/31

Keywords

  • Experiment
  • Highly insulated and airtight house
  • Laboratory scale house
  • Low humidity prevention strategy
  • Occupied house

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Renewable Energy, Sustainability and the Environment

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