Influence of Temperature and Humidity Control in Air Conditioning on Indoor Environment Quality and Human Feelings

Abstract:

In this study, the oxygen contents of the indoor air quality in different climatic conditions in a chamber were real-time monitored. At the same time, ten young volunteers sit in the three different environment conditions to fill subject feeling questionnaires. The climatic conditions referred to three groups of hot and humid environment (30°C, 35°C, 40°Cdry bulb temperature and 90% relative humidity). The results reveal the oxygen content of indoor air quality slightly decreased in different thermal environments, the values within normal variations. Questionnaire statistic results indicate that the temperature and humidity control in air conditioning significantly influence the human feelings. Thirsty, head heavy, tired, irritability, distraction, chest tightness and cold sweating are the main emerging symptoms in such indoor environments. Reasonable control of indoor temperature and humidity has vital importance to indoor environment quality.

• Periodical: Applied Mechanics and Materials (Volumes 256-259)
• Pages: 2648-2651
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.256-259.2648
• Online since: December 2012
• Authors: Yu Ping Sun, Neng Zhu
• Keywords: Air-Conditioning, Human Feeling, Indoor Environment Quality, Temperature and Humidity Control

References

[1] D. Shi and G.H. Su: Influence of indoor air quality on human health, first ed., China Environmental Science Press, Beijing, (2008). (In Chinese)

[2] Y.Y. Yan: Discussion on some problems about indoor air quality, Science & Technology Information, Vol. 5(2012), pp.375-376. (In Chinese)

[3] P.O. Fanger and C. Pedersen: Discomfort due to air velocities in spaces. Proceeding of the Meeting of Commissions B1, B2, E1 of the 1nt 1nst of Refrigeration, Belgrade, 1nt 1nst of Refrigeration, (1977), pp.289-296.

[4] ASHRAE Standard 62-1999, Ventilation for Acceptable Indoor air Quality, (1999).

[5] L.J. Xie, Z.H. Tang, X.X. Ji and X.Q. Y: The decreasing causes and preventing/improving measures of indoor air quality, Refrigeration and Air-conditioning, Vol. 1(2007), pp.108-111. (In Chinese)

[6] Y.X. Zhu: Building Environment, second ed., China Building Industry Press, Beijing, (2005). (In Chinese)

[7] G.G. Zhang: Physiology and health under high temperature, Shanghai Science and Technical Publishers Shanghai, (1989). (In Chinese)

[8] W.H. Xu: Discussion on indoor air quality, Refrigeration Air Conditioning & Electric Power Machinery, Vol. 1(2003), pp.1-5. (In Chinese)

[9] International Organization for Standardization. ISO7243 Hot Environments Estimation of Heat Stress on Working Man Based on the WBGT Index (Wet Bulb Globe Temperature). Geneva, International Organization for Standardization, (1982).

DOI: 10.3403/00321450u

[10] Z.G. Dadao, Fatigue research, Tong Wen College, Beijing, (1979), p.127. (In Chinese)