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Climate impacts on extreme energy consumption of different types of buildings.

Li M, Shi J, Guo J, Cao J, Niu J, Xiong M - PLoS ONE (2015)

Bottom Line: The results showed that days of extreme heating consumption showed apparent decrease during the recent 30 years for residential and large venue buildings, whereas days of extreme cooling consumption increased in large venue building.No significant variations were found for the days of extreme energy consumption for commercial building, although a decreasing trend in extreme heating energy consumption.The impacts of climate on hourly extreme heating energy consumption has a 1-3 hour delay in all three types of buildings, but no delay was found in the impacts of climate on hourly extreme cooling energy consumption for the selected buildings.

View Article: PubMed Central - PubMed

Affiliation: Tianjin Climate Center, Tianjin, 300074, China.

ABSTRACT
Exploring changes of building energy consumption and its relationships with climate can provide basis for energy-saving and carbon emission reduction. Heating and cooling energy consumption of different types of buildings during 1981-2010 in Tianjin city, was simulated by using TRNSYS software. Daily or hourly extreme energy consumption was determined by percentile methods, and the climate impact on extreme energy consumption was analyzed. The results showed that days of extreme heating consumption showed apparent decrease during the recent 30 years for residential and large venue buildings, whereas days of extreme cooling consumption increased in large venue building. No significant variations were found for the days of extreme energy consumption for commercial building, although a decreasing trend in extreme heating energy consumption. Daily extreme energy consumption for large venue building had no relationship with climate parameters, whereas extreme energy consumption for commercial and residential buildings was related to various climate parameters. Further multiple regression analysis suggested heating energy consumption for commercial building was affected by maximum temperature, dry bulb temperature, solar radiation and minimum temperature, which together can explain 71.5 % of the variation of the daily extreme heating energy consumption. The daily extreme cooling energy consumption for commercial building was only related to the wet bulb temperature (R2= 0.382). The daily extreme heating energy consumption for residential building was affected by 4 climate parameters, but the dry bulb temperature had the main impact. The impacts of climate on hourly extreme heating energy consumption has a 1-3 hour delay in all three types of buildings, but no delay was found in the impacts of climate on hourly extreme cooling energy consumption for the selected buildings.

No MeSH data available.


Related in: MedlinePlus

Yearly variations in days for extreme heating (a) and cooling (b) energy consumption of large venue building.
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pone.0124413.g003: Yearly variations in days for extreme heating (a) and cooling (b) energy consumption of large venue building.

Mentions: Days of extreme heating energy (electricity) consumption of large venue building showed large and significant decrease from 1981 to 2010 (R2 = 0.28, P < 0.01) (Fig 3a), with a decreasing rate of average 2.8 d/10a. By contrast, the days of extreme cooling energy (electricity) consumption had significant increase during the recent 30 years (R2 = 0.18, P < 0.05) (Fig 3b). The increasing rate (1.1 d/10a) of extreme cooling energy consumption is lower than the decreasing rate of extreme heating energy consumption. In addition, large interannual fluctuations were found for the days of extreme heating or cooling energy consumption, with the highest days of extreme heating (19d) and cooling (10d) energy consumption occurring in 1984 and 2002, respectively.


Climate impacts on extreme energy consumption of different types of buildings.

Li M, Shi J, Guo J, Cao J, Niu J, Xiong M - PLoS ONE (2015)

Yearly variations in days for extreme heating (a) and cooling (b) energy consumption of large venue building.
© Copyright Policy
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4414602&req=5

pone.0124413.g003: Yearly variations in days for extreme heating (a) and cooling (b) energy consumption of large venue building.
Mentions: Days of extreme heating energy (electricity) consumption of large venue building showed large and significant decrease from 1981 to 2010 (R2 = 0.28, P < 0.01) (Fig 3a), with a decreasing rate of average 2.8 d/10a. By contrast, the days of extreme cooling energy (electricity) consumption had significant increase during the recent 30 years (R2 = 0.18, P < 0.05) (Fig 3b). The increasing rate (1.1 d/10a) of extreme cooling energy consumption is lower than the decreasing rate of extreme heating energy consumption. In addition, large interannual fluctuations were found for the days of extreme heating or cooling energy consumption, with the highest days of extreme heating (19d) and cooling (10d) energy consumption occurring in 1984 and 2002, respectively.

Bottom Line: The results showed that days of extreme heating consumption showed apparent decrease during the recent 30 years for residential and large venue buildings, whereas days of extreme cooling consumption increased in large venue building.No significant variations were found for the days of extreme energy consumption for commercial building, although a decreasing trend in extreme heating energy consumption.The impacts of climate on hourly extreme heating energy consumption has a 1-3 hour delay in all three types of buildings, but no delay was found in the impacts of climate on hourly extreme cooling energy consumption for the selected buildings.

View Article: PubMed Central - PubMed

Affiliation: Tianjin Climate Center, Tianjin, 300074, China.

ABSTRACT
Exploring changes of building energy consumption and its relationships with climate can provide basis for energy-saving and carbon emission reduction. Heating and cooling energy consumption of different types of buildings during 1981-2010 in Tianjin city, was simulated by using TRNSYS software. Daily or hourly extreme energy consumption was determined by percentile methods, and the climate impact on extreme energy consumption was analyzed. The results showed that days of extreme heating consumption showed apparent decrease during the recent 30 years for residential and large venue buildings, whereas days of extreme cooling consumption increased in large venue building. No significant variations were found for the days of extreme energy consumption for commercial building, although a decreasing trend in extreme heating energy consumption. Daily extreme energy consumption for large venue building had no relationship with climate parameters, whereas extreme energy consumption for commercial and residential buildings was related to various climate parameters. Further multiple regression analysis suggested heating energy consumption for commercial building was affected by maximum temperature, dry bulb temperature, solar radiation and minimum temperature, which together can explain 71.5 % of the variation of the daily extreme heating energy consumption. The daily extreme cooling energy consumption for commercial building was only related to the wet bulb temperature (R2= 0.382). The daily extreme heating energy consumption for residential building was affected by 4 climate parameters, but the dry bulb temperature had the main impact. The impacts of climate on hourly extreme heating energy consumption has a 1-3 hour delay in all three types of buildings, but no delay was found in the impacts of climate on hourly extreme cooling energy consumption for the selected buildings.

No MeSH data available.


Related in: MedlinePlus