Energy retrofit of the existing residential buildings envelop of hot summer and cold winter zone in China

Li, Xingfei; Ke, Xiufang; Liang, Caihang

doi:10.2495/feem20130081

Cited by 1 publication

(2 citation statements)

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“…Take one single room as the analyzing unit, the heat gain ways are as follows [10]: from the A/C system or heater (Q 1 ), from the solar radiation (Q 2 ), released from human body and equipment such as lamps (Q 3 ). The heat loss ways are mainly as follows: thermal storage for building envelope (Q 4 ), transfer to outer space through building envelope (Q 5 ), absorbed by the indoor air (Q 6 ), through the infiltration (Q 7 ).…”

Section: Methodsmentioning

confidence: 99%

“…The intermittent heating method results in the wall continuous exchanging heat with outdoor environment. As the amount of heat storage in building envelope is much larger than that of air, the energy saving effect of internal insulation will be better than external insulation with this heating method [10]. There were some researches also showed that with the intermittent cooling method, exterior wall external insulation may increase building cooling load.…”

Section: Introductionmentioning

confidence: 99%

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The Energy Saving Effect of Different Wall Insulation Configurations with the Intermittent and Compartmental Heating Method

Ruan¹,

Qian²,

Qian³

2017

IJET

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Abstract-In hot summer and cold winter zone of China, the intermittent and compartmental heating method of air conditioning is widely adopted. The intermittent heating method makes the heat storage in walls become the main way for heat dissipation. The compartmental heating method results in a large amount of heat loss not only in exterior walls, but also in interior walls. Based on this heating method, a series of experiments were conducted in Shaoxing, a typical city in the hot summer and cold winter zone. The results showed that, internal insulating method for exterior wall could save more energy than external insulating method by reducing the wall heat storage amount. Besides, both the exterior walls and interior walls should be insulated as the heat loss in interior walls accounts for a large proportion of the total heating load and whether the adjacent room heating or not has little effect on reducing it.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%