Heating System Application with Ground Source Heat Pump for Isparta Climate Conditions

Yıl 2018, Cilt: 2 Sayı: 1, 14 - 16, 27.06.2018

Osman İpek Mohammed Alkhalıdı Mehmet Kan Barış Gürel Sedeeq Alomari

Öz

This experiments were carried out in a room with measuring 3x3x3 m. The experimental device consists of two
cycles: underground cycle and heat pump cycle. Heat pumps cycle; consists of a rotary compressor, condenser, evaporator,
expansion valve and four-way valve. The underground cycle consists of the pump and the 1 inch diameter nickel-chrom pipes
laid horizontally at 3 m depth were used as ground heat exchanger. In addition, R22 refrigerant is used as the working fluid in
the heat pump cycle. The GSHP system for heating purposes is operated at different water-ethylene-glycol mixture ratios such
as 5%, 10%, 15%, 20%, 25%, 30% and 10-27 L/ min .The temperature of the GSHP system operated under these conditions,
the temperature of the room to be heated (Toda), the condenser and the evaporator capacity, and the effect of the system on the
COP parameter was investigated. According to the results of the tests, the best results in terms of the parameters mentioned
were obtained with a mixing ratio of 5% and a volumetric flow rate of 21 L/ min and the highest COP is 3.4 and Toda is 27.2°C.

Anahtar Kelimeler

Heat Pump, Heating System, Ground Heat Exchanger

Kaynakça

• [1] L. Pérez-Lombard, J. Ortiz, C. Pout, A review on buildings energy consumption information, Energy and Buildings, Vol 40 (3), pp 394-398, 2008.
• [2] ]. Esen, H., İnallı, M., Esen, M. Numerical and Experimental Analysis of a Horizontal Ground Coupled Heat Pump System, Building and Environment, Vol 42, pp 1126-1134, 2007.
• [3] J.W. Lund, T.L. Boyd, Direct utilization of geothermal energy 2015 worldwide review, Geothermics, Vol 60 , pp66-93, 2016.
• [4] Corberan JM, Radulescu C, Macia JG. Performance characterisation of a reversible water to water heat pump. In: Proceedings of the 9th IEA heat pump conference, Zurich, Switzerland.
• [5] Granryd E. Analytical expressions for optimum flow rates in evaporators and condensers of heat pumping systems. Int J Refrig, Vol 33, pp. 1211–20. 2010.
• [6] Edwards KC, Finn DP. Generalised water flow rate control strategy for optimal part load operation of ground source heat pump systems. Applied Energy. Vol 150.pp 50–60. 2015.