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BENEDIKT V SLOVENSKIH GORICAH, SLOVENIA Peter KRALJ GEJZIR d.o.o. Building and Use. Heating & Cooling System. Heat Pump. building photo. heat pump photo. photo 1. Basement First floor
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BENEDIKT V SLOVENSKIH GORICAH, SLOVENIA Peter KRALJ GEJZIR d.o.o. Building and Use Heating & Cooling System Heat Pump building photo heat pump photo photo 1 Basement First floor The Culture Centre Benedikt is used by local community for cultural events. It si a domicile and office of various non-profit associations and organisations. Total area of the building:290,44 m2 Ground plan dimensions:13,70 x 21,20 m Net area of all rooms and auditorium: 328,44 m2 Aver. annualair temp. (Maribor): +11,7 ºC(2007) Ext. annual air temp. (Radenci):-10 ºC(2008) +34 ºC(2008) Heat power demand: 20,3 kW Cooling power demand: 19,2 kW photo 2 Energy Performance GMWW 23 HK plus Performance data normal mode W10/W35W10/W50 Heating capacity22,6 kW20,5 kW Cooling capacity 18,9 kW15,6 kW Power consumption 3,7 kW4,9 kW Coeff.of performance6,14,2 Drawn current 7,1 A8,8 A Performance data reverse mode W10/W18 Cooling capacity23,1 kW Waste heat capacity26,5 kW Power consumption3,4 kW Coefficient of performance6,8 Drawn current 6,4 A Compressor TypeFully-hermetic/scroll Number 1 units Max. operating current 11,5 A Starting current 62,2 A Max. starting current w/ discharge 31,1 A Evaporator Type Flat-plate heat exchanger MaterialStainless steel 1.4401 Number1 units Max. operating pressure (brine)6 bar Max. operating pressure (refrigerant)30 bar Internal pressure difference17 bar Heating and cooling system scheme Active heating and passive and active cooling enables flexibility and energy efficiency. Active cooling is used only during peak demand when passive cooling is insufficient. Passive cooling is particularly interesting in the winter season when the auditorium has to switch from the heating- to cooling modus, and the rest of the building must undergo a continuous heating. Circulation pumps in the heating loop heat the rest of the building, and the required heat is consumed from the storage tank, whilst the auditorium loop changes to the direct cooling modus. After the end of event normal regime is established. Borehole Heat Exchanger Monthly Energy Delivered Monthly loads Total loads [kW·h] Heating Cooling January 7.285 February 6.580 March 5.099 April 2.914 May 1.093 134,4 June 230,4 July 307,2 August 153,6 September 307,2 October 4.371 November 5.828 December 7.285 BHE field photo Heating & Cooling System 3 Double-U BHEs with PE Ø 40 mm pipesand lengths 166 m, 97 m and 126 m. Soil Parameters General soil profile: sandy (clayey) silt Estimate of conductivity: 2 W/m*K Estimate of volumetric heat: 2,600 kJ/K*m3 Active heating and passive and active cooling is planned.