HEAT STORAGE MATERIAL COMPOSITION AND HEAT STORAGE SYSTEM FOR AIR CONDITIONING OF ARCHITECTURE

To provide a heat storage material composition that has a 5°C range lower limit temperature T5L in a range of 15°C or more to less than 20°C and a 5°C range fusion latent heat H5 of 100 J/g or more, and a heat storage system for air conditioning of an architecture.SOLUTION: A heat storage material composition contains a main agent composed of calcium chloride hexahydrate, ammonium bromide, and calcium bromide hexahydrate and has a 5°C range lower limit temperature T5L in a range of 15°C or more to less than 20°C, and a 5°C range fusion latent heat H5 of 100 J/g or more. In the heat storage material composition, in the main agent 100 mass%, the content of calcium chloride hexahydrate is 71.4-89.5 mass%, the content of ammonium bromide is 2.4-14.3 mass%, and the content of calcium bromide hexahydrate is 3.8-24.3 mass%.SELECTED DRAWING: Figure 6 【課題】５℃幅下限温度Ｔ５Ｌが１５℃以上２０℃未満の範囲内にあり、５℃幅融解潜熱Ｈ５が１００Ｊ／ｇ以上である蓄熱材組成物及び建築物の冷暖房用の蓄熱システムを提供する。【解決手段】蓄熱材組成物は、塩化カルシウム６水和物、臭化アンモニウム、及び臭化カルシウム６水和物からなる主剤を含み、５℃幅下限温度Ｔ５Ｌが１５℃以上２０℃未満の範囲内にあり、５℃幅融解潜熱Ｈ５が１００Ｊ／ｇ以上である。蓄熱材組成物は、主剤１００質量％中に、塩化カルシウム６水和物が７１．４〜８９．５質量％、臭化アンモニウムが２．４〜１４．３質量％、臭化カルシウム６水和物が３．８〜２４．３質量％が含まれる。【選択図】図６