Investigation of temperature regulation effects on indoor thermal comfort, air quality, and energy savings toward green residential buildings

被引:41
作者
Cao, Shi-Jie [1 ]
Deng, Hua-Yan [2 ]
机构
[1] Guangzhou Univ, Acad Bldg Energy Efficiency, Sch Civil Engn, Guangzhou 510006, Guangdong, Peoples R China
[2] Soochow Univ, Dept Civil & Environm Engn, Suzhou, Peoples R China
基金
中国国家自然科学基金;
关键词
SOURCE HEAT-PUMP; VENTILATION RATES; PERFORMANCE; HEALTH; FLOW; ENVIRONMENT; DISPERSION; EFFICIENCY; CONSTRUCTION; CONSUMPTION;
D O I
10.1080/23744731.2018.1526016
中图分类号
O414.1 [热力学];
学科分类号
摘要
To create healthy indoor environments, Chinese green building evaluation standards recommend monitoring and control of CO2 concentration in residential buildings. Regulations of building airtightness levels and indoor temperature will improve thermal comfort and energy efficiency. However, indoor air quality (IAQ; e.g., CO2 concentration) may suffer, which adversely affects indoor occupants' health and productivity. To counteract these negative effects, this work investigated indoor temperature regulation effects on IAQ and energy consumption considering a well-insulated full-scale room with a top-wall-mounted ventilation heating system. First, a series of experiments were conducted with five indoor temperatures (in winter) and constant CO2 sources. Next, corresponding simulations were carried out (air changes per hour, ACHs equal to 4 and 12). It was found that the higher the supplied air temperature, the stronger the negative effects of thermal buoyancy, leading to weaker turbulent diffusion and higher levels of indoor CO2 concentration. A 1 degrees C increase would cause around 1.2% increase of CO2 concentration along with 8.3% more energy consumption. Moreover, the influence of indoor temperature on CO2 dispersion is more significant when ACH is relatively small. Relevant findings will further facilitate the design and regulation of green buildings in the perspectives of indoor heath and energy efficiency.
引用
收藏
页码:309 / 321
页数:13
相关论文
共 59 条
[1]   Simplified model for thermal comfort, IAQ and energy savings in rooms conditioned by displacement ventilation aided with transient personalized ventilation [J].
Al Assaad, Douaa ;
Habchi, Carine ;
Ghali, Kamel ;
Ghaddar, Nesreen .
ENERGY CONVERSION AND MANAGEMENT, 2018, 162 :203-217
[2]  
[Anonymous], 2005, 7730 ISO
[3]  
[Anonymous], 2013, ANSI/ASHRAE 55-2013: Thermal environmental conditions for human occupancy
[4]  
[Anonymous], 1970, THERMAL COMFORT
[5]  
[Anonymous], 2013 ASHRAE HDB FUND
[6]  
[Anonymous], RSC ADV
[7]  
ANSI/ASHRAE, 2013, ANSI/ASHRAE Standard 62.1-2013:, Vent. Accept. Indoor Air Qual
[8]   Effects of diffuser airflow minima on occupant comfort, air mixing, and building energy use (RP-1515) [J].
Arens, Edward ;
Zhang, Hui ;
Hoyt, Tyler ;
Kaam, Soazig ;
Bauman, Fred ;
Zhai, Yongchao ;
Paliaga, Gwelen ;
Stein, Jeff ;
Seidl, Reinhard ;
Tully, Brad ;
Rimmer, Julian ;
Toftum, Jorn .
SCIENCE AND TECHNOLOGY FOR THE BUILT ENVIRONMENT, 2015, 21 (08) :1075-1090
[9]   Alternative ventilation strategies in US offices: Saving energy while enhancing work performance, reducing absenteeism, and considering outdoor pollutant exposure tradeoffs [J].
Ben-David, Tom ;
Rackes, Adams ;
Waring, Michael S. .
BUILDING AND ENVIRONMENT, 2017, 116 :140-157
[10]   Health, comfort and performance of children in classrooms - New directions for research [J].
Bluyssen, Philomena M. .
INDOOR AND BUILT ENVIRONMENT, 2017, 26 (08) :1040-1050