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Published in:
2020 | OriginalPaper | Chapter
Energy-Saving Effect and Mechanism of Heating Setting Temperature Decreased by 1 °C for Residential Buildings in Different Cities
Authors : Shurui Guo, Hanyu Yang, Yin Zhang, Enshen Long
Published in: Proceedings of the 11th International Symposium on Heating, Ventilation and Air Conditioning (ISHVAC 2019)
Publisher: Springer Singapore
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Abstract
Heating setting temperature (HST) is a key and controllable parameter affecting total heating energy usage. In this paper, characteristic temperature method (CTM) is used to pre-estimate the heating load of a residential building for seven cities under different climatic conditions when the HST decreases by 1 °C. The energy-saving effect is discussed to clarify the internal mechanism of the difference between the energy-saving amount (ESA) and ratio (ESR) from two perspectives. The results show that when the HST drops by 1 °C, ESA and ESR will vary widely. The colder region is, the higher ESA can reach, but the lower ESR will be. Although heating hours differ by three times in different regions, the overall trend is that the hourly load reduction rate increases rapidly with the increasing outdoor dry bulb temperature, while it increases exponentially with the decreasing hourly heating load. This study can provide reference for standard determination and building energy saving from the resident behavioral aspect.