間接外気冷房機能を付加した年間冷房型パッケージ空調機の効率向上に関する研究 : 温度制御方法および過熱度制御方法に関する研究 : 熱工学,内燃機関,動力など

概要

論文の詳細を見る
The air conditioner which cools telecommunication equipment rooms or computer rooms must operate throughout the year. So we apply refrigerant pump cycle to the air conditioner to improve coefficient of performance (COP) at low outdoor air temperature. At first, this paper discusses two kinds of control methods. One is superheat control to manipulate refrigerant pump frequency. Refrigerant pump cycle controlled by this method can operate higher efficiency than that controlled by expansion valve. The other is room air temperature control method to manipulate air flow rate = of condenser. Next, this paper discusses year round electric consumption comparison with conventional air conditioner. The electric consumption of the air conditioner with refrigerant pump is 50% shorter than that of conventional air conditioner.
一般社団法人日本機械学会の論文
2001-08-25