Energy and Exergy Analysis of Surface Water Source Heat Pump System

Sezayi Yılmaz; Alper Ergün

Article Details

Energy and Exergy Analysis of Surface Water Source Heat Pump System

Authors:

Sezayi Yılmaz | Alper Ergün

Publisher:

Gazi University

Main Topics:

Mühendislik

Journal:

Politeknik Dergisi Vol.26 Issue 3, pp.1049-1058

Document Type:

Article

Publication Date:

1/2023

Document Language:

Turkish

Document ID (Org No.):

2001300219

pISSN:

2147-9429

Keywords:

Abstract:

 In this study, energy and exergy analyzes were carried out to heat an experimental room with 28 square meter area by a surface water source heat pump SWSHP in the heating season, where placed in next to a river source Araç stream in Karabük University. The system had a frequency inverter to change the compressor speed and the experiment was started at 35 Hz. in winter condition and completed when the indoor temperature reached 25ۥC. While the COP value of the system was calculated as 2.58 on average, the highest exergy destruction was determined as 0.6 kW in the compressor in terms of the exergy analysis. The average exergy destructions were determined as 0.125 kW for the condenser, 0.152 kW for the expansion valve, 0.14 kW for the evaporator and fan coil system, and 0.06 kW for the water source heat exchanger. Exergy efficiencies were 60 for the compressor, 75 for the condenser, 85 for the expansion valve, 25 for the evaporator, 63 for the fan coil system and 8 for the water source heat exchanger. As a result of the study, it has been determined that the surface water source heat pump system works successfully in Karabük province conditions.

 In this study, energy and exergy analyzes were carried out to heat an experimental room with 28 square meter area by a surface water source heat pump SWSHP in the heating season, where placed in next to a river source Araç stream in Karabük University. The system had a frequency inverter to change the compressor speed and the experiment was started at 35 Hz. in winter condition and completed when the indoor temperature reached 25ۥC. While the COP value of the system was calculated as 2.58 on average, the highest exergy destruction was determined as 0.6 kW in the compressor in terms of the exergy analysis. The average exergy destructions were determined as 0.125 kW for the condenser, 0.152 kW for the expansion valve, 0.14 kW for the evaporator and fan coil system, and 0.06 kW for the water source heat exchanger. Exergy efficiencies were 60 for the compressor, 75 for the condenser, 85 for the expansion valve, 25 for the evaporator, 63 for the fan coil system and 8 for the water source heat exchanger. As a result of the study, it has been determined that the surface water source heat pump system works successfully in Karabük province conditions.

 In this study, energy and exergy analyzes were carried out to heat an experimental room with 28 square meter area by a surface water source heat pump SWSHP in the heating season, where placed in next to a river source Araç stream in Karabük University. The system had a frequency inverter to change the compressor speed and the experiment was started at 35 Hz. in winter condition and completed when the indoor temperature reached 25ۥC. While the COP value of the system was calculated as 2.58 on average, the highest exergy destruction was determined as 0.6 kW in the compressor in terms of the exergy analysis. The average exergy destructions were determined as 0.125 kW for the condenser, 0.152 kW for the expansion valve, 0.14 kW for the evaporator and fan coil system, and 0.06 kW for the water source heat exchanger. Exergy efficiencies were 60 for the compressor, 75 for the condenser, 85 for the expansion valve, 25 for the evaporator, 63 for the fan coil system and 8 for the water source heat exchanger. As a result of the study, it has been determined that the surface water source heat pump system works successfully in Karabük province conditions.

 Bu çalışmada Karabük Üniversitesi yerleşkesi içerisinde akarsu kaynağı araç çayı kenarına kurulan 28m2 alana sahip bir deney odasının ısıtma sezonunda yüzey suyu kaynaklı ısı pompası YSKIP ile ısıtılması esnasındaki enerji ve ekserji analizleri yapılmıştır. Kompresör devrini değiştirmek için frekans invertörü kullanılan sistemde deney 35 Hz. değerinde, kış şartlarında yapılmış ve iç ortam sıcaklığı 25ۥC ulaştığında tamamlanmıştır. Sistemin COP değeri, ortalama 2.58 hesap edilirken, yapılan ekserji analizleri sonucuna göre en yüksek ekserji yıkımı kompresörde 0.6 kW olarak tespit edilmiştir. Diğer ekipmanların ortalama ekserji yıkımları ise, kondenser için 0.125kW, genleşme valfi için 0.152 kW, evaparatör ve fancoil sistemi için 0.14 kW, su kaynağı ısı değiştiricisi için ise 0.06 kW olarak tespit edilirken. Ekserji verimleri, kompresör için 60, kondenser için 75, genleşme valfi için 85, evaparatör için 25, fancoil sistemi için 63 ve su kaynağı ısı değiştiricisi için  8dir. Yapılan çalışma neticesinde, yüzey suyu kaynaklı ısı pompası sisteminin Karabük ili şartlarında başarılı bir şekilde çalıştığı tespit edilmiştir.

Article Details

Energy and Exergy Analysis of Surface Water Source Heat Pump System

Authors:

Sezayi Yılmaz | Alper Ergün

Publisher:

Gazi University

Main Topics:

Mühendislik

Journal:

Politeknik Dergisi Vol.26 Issue 3, pp.1049-1058

Document Type:

Article

Publication Date:

1/2023

Document Language:

Turkish

Document ID (Org No.):

2001300219

pISSN:

2147-9429

Water source heat pump

surface water

COP

energy and exergy analysisSu kaynaklı ısı pompası

konik yüzey suyu

COP

enerji ve ekserji analizi

Issues

Article Details

Authors: Sezayi Yılmaz | Alper Ergün

Publisher: Gazi University

Main Topics: Mühendislik

Journal: Politeknik Dergisi Vol.26 Issue 3, pp.1049-1058

Document Type: Article

Publication Date: 1/2023

Document Language: Turkish

Document ID (Org No.): 2001300219

pISSN: 2147-9429

Issues

Authors:

Sezayi Yılmaz | Alper Ergün

Publisher:

Gazi University

Main Topics:

Mühendislik

Journal:

Politeknik Dergisi Vol.26 Issue 3, pp.1049-1058

Document Type:

Article

Publication Date:

1/2023

Document Language:

Turkish

Document ID (Org No.):

2001300219

pISSN:

2147-9429