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空氣載能空調(diào)房間輸入(火用)算法及系統(tǒng)(火用)成本應(yīng)用分析

2019-07-19 06:12:55龔光彩尹丹
關(guān)鍵詞:經(jīng)濟(jì)性

龔光彩 尹丹

摘? ?要:通過分析輻射孔板的傳熱特性,結(jié)合金屬輻射板和對流型空氣處理末端的(火用)分析方法,提出了空氣載能輻射空調(diào)房間的輸入(火用)計算方法,并且基于(火用)成本分析法,建立了空氣載能輻射空調(diào)系統(tǒng)的(火用)成本分析模型.在滿足人體熱舒適要求的前提下,以單位(火用)成本為評價指標(biāo),對空氣載能輻射空調(diào)系統(tǒng)、毛細(xì)管輻射空調(diào)系統(tǒng)和分體式空調(diào)加地暖系統(tǒng)進(jìn)行(火用)成本分析.研究發(fā)現(xiàn):運(yùn)用于辦公建筑時,毛細(xì)管輻射空調(diào)系統(tǒng)的各單位(火用)成本高出空氣載能輻射空調(diào)系統(tǒng)1~3倍;運(yùn)用于住宅建筑時,分體式空調(diào)加地暖系統(tǒng)全年的產(chǎn)品(火用)單位成本為空氣載能輻射空調(diào)系統(tǒng)的1.2倍.研究表明空氣載能輻射空調(diào)系統(tǒng)的總體(火用)經(jīng)濟(jì)性更好,該研究結(jié)果對空氣載能輻射空調(diào)后期在工程上的實際推廣應(yīng)用具有一定的指導(dǎo)意義.

關(guān)鍵詞:空氣載能;(火用);(火用)成本分析法;(火用)經(jīng)濟(jì)性

中圖分類號:TU831? ?? ? ? ? ? ? ? ? ? ? ? ? ? ?文獻(xiàn)標(biāo)志碼:A

文章編號:1674—2974(2019)01—0133—08

Abstract: Based on the heat transfer process of orifice plate and the exergy analysis method of traditional mental radiant panel and convective air-conditioning terminal, the algorithm of room input exergy for air carrying energy radiant air-conditioning system(ACERS) was proposed. The exergy cost analysis model of ACERS was established by exergy cost analysis method. The unit exergy cost of three radiant air-conditioning systems including ACERS, capillary radiant air conditioning system and a combined system of split air conditioning with floor radiant air conditioning,was compared under the premise of thermal comfort. The results show that the unit exergy costs of capillary radiant air conditioning system are 1~3 times higher than that of ACERS in office buildings. The unit product exergy cost for the year of a combined system of split air conditioning with floor radiant air conditioning is 1.2 times higher than that of ACERS in residential building. It is found that the overall exergy economic performance of ACERS is superior to the other two radiant air-conditioning systems, which is of great significance for future engineering application of ACERS.

Key words: air carrying energy;exergy;exergy cost analysis;exergy economic

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