Su Kaynaklı Isı Pompasında Al2O3 Nano Partikülünün Enerji, Ekserji ve Yaşam Döngüsü İklim Performansına Etkisi

Abstract

Bu çalışmada, su kaynağı devresi, R-134a gazı kullanılan soğutucu akışkan devresi ve radyatör su devresi olmak üzere 3 devreden oluşan mahal ısıtma amaçlı su kaynaklı bir ısı pompası sistemi tasarlanmış, üretilmiş ve test edilmiştir. Kompresöründe geleneksek POE yağı kullanan sistem ile POE yağına ağırlıkça %1 Al2O3 nano partikülü ilave edilerek oluşturulan POE+ Al2O3 nano akışkanı kullanan sisteminin enerji ve ekserji performansları değerlendirilmiştir. Isı pompası devresi ısıtma enerji performansı (ECOPHP) ve ekserji performansı (ExCOPHP) ve tüm sistem devresi ısıtma enerji performansı (ECOPsis) ve ekserji performansı (EXCOPsys) ve yaşam döngüsü iklim performansı (LCCP) kaynak sıcaklığına (10 oC, 11 oC ve 12 oC) bağlı olarak deneysel olarak karşılaştırılmıştır. Al2O3 nano partikülü, kompresör güç tüketimini %1,62-3 oranında artırırken ECOPHP değerini %7,1-8,4 ve ECOPsys değerini %12,5-%22,8 oranında azaltmıştır. Bunun yanında, Al2O3 nano partikülü, ExCOPHP değerini enerji performans katsayısının aksine %7-40 oranında arttırırken, EXCOPsys ise %12,5-25 oranında azaltmıştır. Aynı zamanda, Al2O3 nano partikülü LCCP değerini %1,5-3 oranında artırmıştır.

Keywords

• Su kaynaklı ısı pompası
• Al2O3
• enerji
• ekserji
• performans

The Effect of Al2O3 Nano Particle on Energy, Exergy and Life Cycle Climate Performances in the Water Source Heat Pump

Abstract

In this study, a water source heat pump system for space heating, which consists of 3 circuits, a water supply circuit, a refrigerant circuit using R-134a gas, and a radiator water circuit, was designed, manufactured and tested. The energy and exergy performances of the system using conventional POE oil in its compressor and the system using POE+Al2O3 nanofluid formed by adding 1wt.% Al2O3 nanoparticles to POE oil in its compressor were evaluated. Heat pump circuit heating energy performance (ECOPHP) and exergy performance (ExCOPHP) and whole system circuit heating energy performance (ECOPsis) and exergy performance (EXCOPsys) and Life Cycle Climate Performance (LCCP) were experimentally compared depending on source temperature (10 oC, 11 oC ve 12 oC). While Al2O3 nanoparticle increased the compressor power consumption by 1.62-3%, it reduced the ECOPHP value by 7.1-8.4% and the ECOPsys value by 12.5%-22.8%. In addition, Al2O3 nanoparticle increased the ExCOPHP value by 7-40%, contrary to the energy performance coefficient, while EXCOPsys decreased it by 12.5-25%. Also, Al2O3 nanoparticle increased the LCCP value by 1.5-3%.

Keywords

• Water source heat pump
• Al2O3
• energy
• exergy
• performance

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