[{"data":1,"prerenderedAt":61},["ShallowReactive",2],{"q-110180-arch_environment-30":3},{"question":4,"neighbors":26,"sameNumber":45,"prev":34,"next":37},{"id":5,"classKey":6,"session":7,"year":8,"subject":9,"number":10,"groupStem":11,"ownStem":12,"stem":12,"options":13,"answer":18,"answerKind":20,"answerS":11,"answerNote":11,"images":21,"explanation":22,"withheld":11,"deepChars":23,"freq":24,"indexable":25},"arch-110180-801-0104-030","architect","110180",110,"建築環境控制",30,null,"壓縮式冷凍循環原理中，下列何者為空氣冷卻（相當於冷媒吸熱）的過程？",{"A":14,"B":15,"C":16,"D":17},"壓縮","冷凝","膨脹","蒸發",[19],"D","single",[],"本題考點：壓縮式冷凍循環的四個基本過程（壓縮、冷凝、膨脹、蒸發）中，冷媒在哪一個過程吸熱，使流經的空氣（或冰水）降溫。\n【正解理由】壓縮式冷凍循環利用冷媒「低壓下汽化吸熱、高壓下液化放熱」的相變化性質，把熱量從要冷卻的一側搬到排熱的一側。冷媒經膨脹閥降壓後，成為低溫低壓的液氣混合物進入蒸發器；此時冷媒在該壓力下的飽和溫度低於流過蒸發器的空氣，熱量便由空氣流向冷媒，冷媒吸收汽化潛熱而由液體變成蒸氣，空氣失去熱量而被冷卻。題目所問「空氣冷卻（相當於冷媒吸熱）」的過程，對應的就是蒸發器內的蒸發過程，故選 D。\n【逐項排除】\n(A) 壓縮：不符合題目所問。壓縮機吸入蒸發器出口的低壓冷媒蒸氣，以機械功將它壓成高溫高壓蒸氣，這一步是「外界對冷媒做功」，冷媒的壓力與溫度上升，並沒有從被冷卻的空氣吸熱。壓縮的作用是把冷媒溫度抬高到高於室外空氣或冷卻水，讓下一步能把熱排出去；吸熱冷卻空氣的是蒸發，不是壓縮。\n(B) 冷凝：不符合題目所問。高溫高壓冷媒蒸氣在冷凝器中把熱量排給冷卻水或室外空氣，自身凝結成高壓液體，冷媒在此是「放熱」，方向與題目所問的吸熱正好相反；冷凝器周圍的空氣或冷卻水是被加熱，而不是被冷卻。要找冷媒吸熱、空氣降溫的過程，應改為蒸發。\n(C) 膨脹：不符合題目所問。高壓液態冷媒通過膨脹閥或毛細管節流降壓，部分液體閃蒸、溫度隨壓力一起下降，這一步與外界幾乎沒有熱交換，只是冷媒自身的狀態改變，目的是把冷媒降到低於被冷卻空氣的溫度，替蒸發吸熱做準備。考生常因「膨脹後冷媒變冷」而誤選，但「冷媒變冷」不等於「空氣被冷卻」；真正從空氣取走熱量的是緊接在後的蒸發。\n(D) 蒸發：符合題目所問。低溫低壓冷媒在蒸發器內吸收空氣（或冰水）的熱量而汽化，空氣因而降溫，正是題目所描述「空氣冷卻、相當於冷媒吸熱」的過程。\n【記憶點】壓縮升壓升溫、冷凝放熱、膨脹降壓降溫、蒸發吸熱製冷——吹出冷風的永遠是蒸發器那一側。",771,1,true,[27,30,33,36,39,42],{"number":28,"session":7,"stem":29},27,"火災發生到進入最盛期時，消防設備中主要滅火設備不包括下列那項設備？",{"number":31,"session":7,"stem":32},28,"設有滅火器之樓層，自樓面居室任一點至滅火器之步行距離最多應在多少公尺以下？",{"number":34,"session":7,"stem":35},29,"下列有關輻射冷暖房的說明何者錯誤？",{"number":37,"session":7,"stem":38},31,"某鋼筋混凝土構造辦公室的建築外殼熱負荷，含實體部與開口部共 40 kW，外氣與間隙風…",{"number":40,"session":7,"stem":41},32,"下列有關輸送設備的敘述何者正確？",{"number":43,"session":7,"stem":44},33,"依據建築技術規則建築設備編，下列關於昇降機房之規定何者錯誤？",[46,49,52,55,58],{"number":10,"session":47,"stem":48},"114180","某辦公建築於冷房期間，採用機械通風設備引入外氣時兼顧節能的控制方式，下列何者錯誤？",{"number":10,"session":50,"stem":51},"113190","氣冷式箱型空調機通常做為於中型空間的空調機，這類箱型空調機不包括下列那一項裝置？",{"number":10,"session":53,"stem":54},"112190","下圖為某冷媒的 p-h 線圖（Mollier Chart），關於冷凍循環之敘述何者錯…",{"number":10,"session":56,"stem":57},"111180","有關電梯設備之設計原則，下列何者錯誤？",{"number":10,"session":59,"stem":60},"109180","具有經濟部節能標章認證的室內照明燈具，下列何者不是產品型錄上應標示的項目？",1791863205401]