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          2. 暖通空调杂志社>期刊目次>2018年>第10期

            间歇供暖房间停暖期通风行为对供暖能耗的影响

            Influence of ventilation during non-heating period on heating energy consumption of an intermittent heating room

            于 加 亢燕铭 王舒寒 钟 珂
            东华大学

            摘要:

            利用实测方法研究了在停暖期通风行为对间歇供暖房间供暖能耗的影响。结果表明:停暖期通风换气使蓄热体降温幅度增加,导致再次供暖时蓄热体吸热强度增大,供暖能耗增高;尽管停暖时长、室内热容对停暖期蓄热体的散热量影响很大,但几乎不影响停暖期通风造成的供暖能耗增加率;停暖期通风量与对应的供暖能耗增加率不是线性关系,当换气次数控制在4 h-1以下时,供暖能耗仅小幅增加,约4%~7%,但换气次数较大(6.8 h-1)时,供暖能耗增加率则高达28%~31%

            关键词:间歇供暖,换气次数,停暖时长,蓄热体,供暖能耗

            Abstract:

            Studies the influence of ventilation during non-heating period on heating energy consumption of an intermittent heating room by means of field measurement. The results show that the temperature of thermal mass decreases during non-heating period, which leads to the increase of heat absorption intensity of thermal mass and higher energy consumption during the reheating period; the non-heating duration and indoor heat capacity have great influence on the heat release of thermal mass during non-heating period, but little on the increasing rate of heating energy consumption caused by ventilation; there is no linear relationship between the air change rate during the non-heating period and the increasing rate of heating energy consumption. The heating energy consumption increases by 4% to 7% when the air change rate is less than 4 h-1, but it is as high as 28% to 31% when the air change rate is increased up to 6.8 h-1.

            Keywords:intermittentheating,airchangerate,non-heatingduration,thermalmass,heatingenergyconsumption

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