Yangtze River Valley is situated within the Hot Summer and Cold Winter zone, and residents in this region of China would require HVAC system to alleviate thermal comfort conditions, although this is tempered by the Design Code (DBJ50-071-2007) for energy efficiency. A 1-year survey of about 200 residential homes was carried out in eight cities covering the breadth of the region. The acceptable temperature range for the residents in this area was 16.3—28.1°C and the thermal neutral temperature was found to be 27.6°C in summers and 17.5°C in winters. People in different area can vary in their adaptability and comfortableness. Therefore, there is a need to investigate the national comfort parameter introduced in the Code for Design of Heating and Ventilation and Air Conditioning (GB50019-2003). The results found that if air-conditioning system was set to 27.5°C instead of 26°C as required by GBJ19-87: Design Standard of Heating and Ventilation and Air Conditioning, a 16.5% saving of energy consumption could be achieved. The findings demonstrated the role of natural ventilation in the expansion of the thermal comfort zone for the residents, especially during the summer seasons. A climatic adaptability model has been established by this study to contribute to the passive climatic design strategies for a better economic and energy efficiency of buildings.
China Urban Research Committee: Green Building , Beijing, Chinese Construction Industrial Publish House, 2008.
2.
Chmutina K.: Building energy consumption and its regulations in China: The University of Nottingham, China Policy Institute, Discussion Paper 67, 2010.
3.
Zhang Ming’ai : China needs energy efficient edifices: Health & green living issues; Environment. Available at: http://www.china.org.cn/english/environment/231086.htm ; (accessed November 18, 2010).
4.
Li B., Li W., Liu H., Yao R., Tan M., Jing S., Ma X.: Physiological expression of human thermal comfort to indoor operative temperature in the non-HVAC environment: Indoor Built Environ2010;19(2):221-229.
5.
Li B., Tan M., Liu H., Ma X., Zhang W.: Occupant’s perception and preference of thermal environment in free-running buildings in China: Indoor Built Environ2010 ;19(4): 405-412.
6.
Fong KF, Chow TT, Li C.: Comfort zone of air speeds and temperatures for air-conditioned environment in the sub-tropical Hong Kong: Indoor Built Environ2010;19(3):375-381.
7.
Yik FWH , Lun YF: Energy saving by utilizing natural ventilation in public housing in Hong Kong : Indoor Built Environ2010;19(1):73-87.
8.
Wong LT, Fong KNK, Mui KW, Wong WWY, Lee LW: A field survey of the expected desirable thermal environment for older people : Indoor Built Environ2009;18(4): 336-345.
9.
Chiang CM, Lai CM: The influence of ventilation design mixes on the thermal environment in elementary school classrooms: Indoor Built Environ2009 ;18(4):346-359.
10.
Daghigh R., Adam NM, Sahari BB: Ventilation parameters and thermal comfort of naturally and mechanically ventilated offices: Indoor Built Environ2009 ;18(2):113-122.
11.
Budaiwi I., Al-Homoud M., Abdou A.: Implementation of a multi-phase approach for investigating and remedying a thermal comfort problem in an office building: Indoor Built Environ2009;18(1):52-65.
12.
Chan MY, Mak CW: Thermal comfort levels in a room with solar radiation: Indoor Built Environ2008;17(6):516-524.
13.
Yang JH, Kato S., Seok HT: Measurement of airflow around the human body with wide-cover type personal air-conditioning with PIV: Indoor Built Environ2009;18(4):301-312.
14.
Park CS, Augenbroe G.: Normative thermal comfort assessment: Indoor Built Environ2008;17(4):324-333.
15.
Von Grabe J. , Winter S.: The correlation between PMV and dissatisfaction on the basis of the ASHRAE and the McIntyre Scale: Towards an improved concept of dissatisfaction: Indoor Built Environ2008 ;17(2):103-121.
16.
Yao R., Steemers K., Li B.: Energy efficient design for residential buildings in China: J Chongqing Univ (English Edition) 2003;10: 41-45.
17.
Tsinghua University Building Energy Conservation Study Center: Annual Development Report for Building Energy Conservation 2009. Beijing, China Construction Industry Publish House, 2008.
18.
Yao R., Li B., Steemers K., Short A.: Assessing the natural ventilation cooling potential of office buildings in different climate zone: Renewable Energy2009 ;34:2697-2705.
19.
CMA Meteorological Information Centre: The Dedicated Meteorological Data Set for the Analysis of Building Thermal Environment in China. Beijing, China Construction Industry Publish House, 2005, ISBN 978-7-112-07274-3.
20.
Li B.: Innovative use of strategic energy design tools in building design in China : J Chongqing Univ (English Edition) 2003;10:61-64.
21.
Lam JC, Tsang CL, Yang L., Li DHW: Weather data analysis and design implications for different climatic zones in China: Build Environ2005;40(2):277-296.
22.
Standardization Administration of China (SAC) : Standard of Climatic Regionalization for Architecture , GB50178-93, Beijing , Chinese Plan Publication House, 1993 (in Chinese).
23.
Humphreys MA : Outdoor temperatures and comfort indoors : Build Res Pract1978;6(2): 92-105.
24.
Yang W., Zhang G.: Thermal comfort investigation of buildings on a campus inHunan: Heating Vent Air Cond2006 ;36(9):95-101.
25.
de Dear RJ, Brager GS: Thermal comfort in naturally ventilated buildings: Revisions to ASHRAE Standard 55: Energy Build2002; 34(2):549-561.
26.
Ye XJ, Zhou ZP, Lian ZW, Liu HW, Li CZ, Liu YM: Field study of a thermal environment and adaptive model inShanghai: Indoor Air2006;16(1):320-326.
27.
Hwang RL, Lin TP, Kuo NJ: Field experiments on the thermal comfort in campus classrooms in Taiwan: Energy Build2006; 38(1):53-62.
28.
Humphreys MA : Outdoor temperatures and comfort indoors : Build Res Pract (J. CIB)1978;6(2):92-105.
29.
de Dear RJ, Brager GS: Developing an adaptive model of thermal comfort and preference: ASHRAE Trans1998;104(1a):145-167.
30.
Auliciems A. , de Dear RJ: Air conditioning in Australia I; human thermal factors: Arch Sci Rev1986 ;29:67-75.
31.
Nicol JR: Adaptive thermal comfort standards in the hot-humid tropics: Energy Build2004;36(7):628-637.
32.
Jones WP: Fundamental Properties of Air and Water Vapour Mixtures: Chapter 2: Air Conditioning Engineering, London, Edward Arnold , 1985, pp. 4-42.
33.
Mui KWH , Chan WTD: Adaptive comfort temperature model of air-conditioned building in Hong Kong: Build Environ2003;38:837- 885.
34.
Yik WH: BIN weather profiles for air conditioning energy calculations: Far East Conference on Air Conditioning in Hot Climates Kuala Lumpur, Malaysia, FE89-16, ASHRAE, 1989 , pp. 78-83.
35.
Nicol JF, Humphreys MA: Adaptive thermal comfort and sustainable thermal standard for buildings : Energy Build2002;34:563-572.
36.
Li B., Yao R.: Urbanisation and its impact on building energy consumption and efficiency in China: Int J Renewable Energy2009;34: 1994-1998.
37.
Yao R., Li B., Liu J.: A theoretical adaptive model of thermal comfort: Adaptive Predicted Mean Vote (aPMV): Build Environ2009; 44(10):2089-2096.
38.
Ole Fanger P., Toftum J.: Extension of the PMV model to non-air-conditioned buildings in warm climates: Energy Build2002 ;34(6): 533-536.
39.
Li N., Li B., Shen Y., Yu W., Ding Y.: Impacts of natural ventilation on indoor thermal environment for residential housing: J Chongqing Univ2009 ;32(7):736-742.
