Publication: Değişken debili soğutucu akışkan (VRF) ve fan coil (FCU) sistemlerinin karşılaştırılması
Abstract
İklimlendirme sistemlerinde; konfor, enerji verimliliği, kurulum ve işletme kolaylığıaçısından değişken debili soğutucu akışkan (VRF) sistemleri son zamanlarda yaygınolarak kullanılmaya başlamıştır. Bu sistemlerde, cihazın içinde bulunan soğutucu akışkansayesinde ısıtma ve soğutma işlemi yapılabilmektedir. İklimlendirme sistemlerindekullanılan diğer bir uygulama ise Fan Coil (FCU) sistemidir. Fan coil sistemi enerjininsu ile taşındığı ısıtma ve soğutma uygulamasıdır. Konfor şartları ve tasarım taleplerinegöre iki (2) borulu ve dört (4) borulu olarak kullanılmaktadır. Bu çalışmada bir caddemağazasının ısı kayıp kazanç yükleri, Transfer Fonksiyon Metodu (TFM) yöntemine göredeğerlendirme ve analiz yapan Hourly Analysis Program’ı (HAP) kullanılarakhesaplanmıştır. 1076 m2 alan için hesaplanan toplam soğutma yükü 152,93 kW ve ısıtmayükü ise 74,9 kW olmuştur. Hesaplanan mahal ısı yüklerine göre VRF ve FCU sistemekipmanları seçilmiştir.Seçilen ekipmanlara göre yapılan analizler sonucunda; VRF sistemlerinin yatırımmaliyetlerinde %24,6 , işletme giderlerinde %32,5 ve enerji tüketiminde %33,7 daha fazlaavantaj sağladığı tespit edilmiştir. Bu kapasitede ki yapılarda yatırım maliyetleri, işletmegiderleri ve enerji tüketimi açısından VRF sistemlerinin kullanılmasının daha uygunolacağı ortaya konmuştur.
In air conditioning systems; In terms of comfort, energy efficiency, ease of installationand operation, variable flow refrigerant (VRF) systems have recently become widelyused. In these systems, heating and cooling process can be performed by means of therefrigerant in the device. Another application used in air conditioning systems is the FanCoil (FCU) system. Fan coil system is the heating and cooling application where energyis carried by water. It is used as two (2) pipe and four (4) pipe according to comfortconditions and design demands. In this study, the heat loss gain loads of a street storewere calculated using the Hourly Analysis Program (HAP), which evaluates and analyzesaccording to the Transfer Function Method (TFM) method. The total cooling loadcalculated for an area of 1076 m2 was 152,93 kW and the heating load was 74,9 kW.VRF and FCU system equipments were selected according to the calculated heat loads.As a result of the analysis made according to the selected equipment; It has been foundthat VRF systems provide %24,6 advantage in investment costs, %32,5 in operatingexpenses and %33,7 in energy consumption. It has been shown that it is more appropriateto use VRF systems in terms of investment costs, operating costs and energy consumptionin buildings of this capacity.
In air conditioning systems; In terms of comfort, energy efficiency, ease of installationand operation, variable flow refrigerant (VRF) systems have recently become widelyused. In these systems, heating and cooling process can be performed by means of therefrigerant in the device. Another application used in air conditioning systems is the FanCoil (FCU) system. Fan coil system is the heating and cooling application where energyis carried by water. It is used as two (2) pipe and four (4) pipe according to comfortconditions and design demands. In this study, the heat loss gain loads of a street storewere calculated using the Hourly Analysis Program (HAP), which evaluates and analyzesaccording to the Transfer Function Method (TFM) method. The total cooling loadcalculated for an area of 1076 m2 was 152,93 kW and the heating load was 74,9 kW.VRF and FCU system equipments were selected according to the calculated heat loads.As a result of the analysis made according to the selected equipment; It has been foundthat VRF systems provide %24,6 advantage in investment costs, %32,5 in operatingexpenses and %33,7 in energy consumption. It has been shown that it is more appropriateto use VRF systems in terms of investment costs, operating costs and energy consumptionin buildings of this capacity.