Air-Source vs. Water/Ground-Source Heat Pump Systems ...

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CoolEnergy.dk – March 6-7 th, 2013 – Odense, Denmark Example 3 – A/W HP in Passive Office Bldg. x4 x4 GK Norway HP1 HP2 Secondary circuit – anti-freeze fluid Reversible A/W heat pump units x 2 Condenser heat from water chiller, computers Electro boiler Heating or cooling to heating/cooling batteries 42 MARCH 7TH, 2013 COWI POWERPOINT PRESENTATION
CoolEnergy.dk – March 6-7 th, 2013 – Odense, Denmark Example 4 – B/W HP in Low-Energy School › The building (2008) › 6600 m 2 – school and kindergarten › Solid wood construction, low-energy bldg. (74 kWh/m 2 y) › The heat pump system – bedrock as heat source › Heating and cooling › Space heating – radiators (60/40 °C) and floor heating › Heating of ventilation air (40/25 °C) › Preheating of hot water › Cooling of ventilation air (10/16 °C) – free cooling › Unit – standard R134a water chiller › Nominal heating power 132 kW › 4 scroll compressors, on/off operation › To separate refrigerant circuits › 14 energy wells á 200 metres › Peak load – district heating 43 MARCH 7TH, 2013 COWI POWERPOINT PRESENTATION
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Air-Source vs. Water/Ground-Source Heat Pump Systems ...

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