Formula for refrigerating capacity of two - stage compression refrigeration cycle based on piston displacement of high pressure stage 基于高壓級(jí)活塞排量的雙級(jí)壓縮制冷循環(huán)制冷量計(jì)算式
According to the thermodynamics theory of vapor compression refrigeration cycle , hfc - r134a is chosen as refrigerant fluid and the thermodynamics calculation of refrigeration system is accomplished , which is based on the table of r134a thermodynamics characteristics and estimate of portable refrigerator ' s calorific burthen 本文根據(jù)蒸汽壓縮式制冷循環(huán)的熱力學(xué)原理,從小冷量、小體積的便攜式冷藏箱的熱負(fù)荷計(jì)算出發(fā),以所選用制冷劑( r134a )的熱力性質(zhì)表為依據(jù),進(jìn)行了制冷系統(tǒng)的基本熱力計(jì)算。
The system adopts several technologies , such as recovery of condensing heat , thermal storage and heat pump , etc . it can synthetically utilize energy of compression refrigeration cycle and satisfy the need of air conditioning and domestic hot water simultaneously . at the same time , its application will improve some problems of the conventional system ( an air conditioner and a hot water heater ) , such as large consuming energy , wasting energy and thermal pollution to environment . therefore , hpacdhws is obviously in favor of development economy , environment and society 該設(shè)備能全年綜合利用壓縮式制冷循環(huán)的能量(冬季運(yùn)行要依靠輔助熱源) ,并融合了熱回收、蓄熱和熱泵等多項(xiàng)技術(shù),能夠同時(shí)滿足建筑物內(nèi)空調(diào)和生活熱水的需求,緩解了常規(guī)系統(tǒng)(常規(guī)空調(diào)器+熱水器)能耗大、能源浪費(fèi)和環(huán)境熱污染等問(wèn)題,具有明顯的經(jīng)濟(jì)效益、環(huán)境效益和社會(huì)效益。