# 패시브환기외피의 통기성능 및 열관류율에 대한 연구

• Lee, Tae-Cheol (Department. of Architecture, Graduate School, Pusan National University) ;
• Son, Yu-Nam (EAN Technology CO., LTD.) ;
• Yoon, Seong-Hwan (Department. of Architecture, Pusan National University)
• Published : 2012.09.10

#### Abstract

This paper aims to evaluate performances of ventilation and insulation of 6types PVS(Passive ventilation skin) by numerical simulation. The results are as follows. 1) The result of Performance of ventilation by pressure difference, it was shown that the amount of ventilation changed bigger under 1Pa and amount of ventilation increased according to increase opening area (${\alpha}A$). Although same opening area of PVS, it can predict that pressure differences cause ventilation differences. 2) In case of same opening area of PVS, however, it was changed the amount of ventilation each types of PVS that is distinguished opening area by flow coefficient. 3) Dynamic U-value that represents performance of insulation PVS was similar change upper ${\alpha}A40\;cm^2/m^2$, great change in casse of 0.1 Pa pressure difference. In case of ${\alpha}A10\;cm^2/m^2$, it was changed bigger under 0.3 Pa pressure difference, ${\alpha}A20\;cm^2/m^2$ of PVS was changed under 0.2 Pa pressure difference.

#### Acknowledgement

Supported by : 한국연구재단

#### References

1. Kim, J.-H., Cho, H., Lee, J.-I., Kim, Y.-S., and Jeong, J.-W., 2009, A study on current problems of heat recovery ventilator operated by occupants in high-rise apartment houses, Journal of the Architectural Institute of Korea Planning and Design, Vol. 25, No. 2, pp. 249-256.
2. ASHRAE Handbook of Fundamentals, ASHRAE, 2001.
3. Hoyano, A., Sugawara, M., Sato, E., and Yasukata, S., 1995, Reappraisal of an aluminum foil-constructed multi-air layered body as an architectural member and its thermal characteristics : development of a breathing wall part 1, Journal of Architecture, Planning and Environmental Engineering Transactions of AIJ, Vol. 475, pp. 9-15.
4. Hoyano, A., Sugawara, M., and Sato, E., 1995, Proposal of a breathing wall as an architectural member for a passive solar system in a temperate and humid climate region, Proceedings of Pan Pacific Symposium on Building and Urban Environment Conditioning in Asia(Nagoya, Japan), Vol. 1, pp. 43-52.
5. Sugawara, M., Hoyano, A., Sato, E., and Sakuma, H., 1997, proposal of an architectural member with multi-air layered body constructed of aluminum sheets having fine holes and study on a calculation method of air, heat, and moisture transfers : development of a breathing wall part 2, Journal of Architecture, Planning and Environmental Engineering Transactions of AIJ, Vol. 499, pp. 43-48.
6. Seong, H. Y. and Hoyano, A., 1998, Passive ventilation system that incorporates a pitched roof constructed of breathing walls, Solar Energy, Vol. 64, pp. 189-195. https://doi.org/10.1016/S0038-092X(98)00083-8
7. Yoon, S.-H., Hoyano, A., and Gonaikawa, K., 2000, study on application of a breathing wall to houses-evaluation of ventilation properties throughout a year and thermal properties in wintertime by case study of applications to ceiling/wall, Journal of Japan Solar Energy Society, Vol. 26, No. 6, pp. 35-42.
8. Yoon, S.-H., Hoyano, A., and Gonaikawa, K., 2000, Wind Pressure Effects on Transfer of Heat and Moisture Across a Breathing Wall : Study on properties of natural ventilation, thermal insulation and vapor transmission in a breathing wall Part 1, Journal of Architecture Planning and Environmental Engineering Transactions of AIJ, Vol. 531, pp. 67-74.
9. Yoon, S.-H. and Son, Y.-N., 2010, A study on natural ventilation design for korean breathing wall, Journal of the Architectural Institute of Korea Planning and Design, Vol. 26, No. 11, pp. 347-354.
10. Lee, T.-C., Son, Y.-N., and Yoon, S.-H., 2011, Predictive evaluation of natural ventilation and thermal performance of passive ventilation building envelopes applied to apartment houses, Journal of the Regional Association of Architectural Institute of Korea, Vol. 13, No. 4, pp 191-198.
11. Dalehaug, A., Fukushima, A., and Honma, Y., 1993, Dynamic insulation in a wall, Proceeding of Conference of Architectural Institute of Japan (East Provinces of Japan), pp. 1445-1446.
12. Ower, E. and Pankhurst, R. C., 1996, The measurement of air flow, Pergamon Press Ltd.