Pass masters | Archive Titles

Table 1: Energy and water quantities at Gelredome Stadium
Cooling capacity of heat pump	332kW
Heating capacity	410kW
Heat production by heat pump	5400 GJ
Cold energy by heat pump	4320GJ
Summer cold energy demand	1728 GJ
Cooling capacity of cold storage	2800kW
Groundwater winter flow rate	1.7 x 10.2m³/s
Groundwater summer flow rate	6.9 x 10.2m³/s
Pumped quantity winter	175,000 m³
Pumped quantity summer	60,000 m³
Injection temperature winter	7 C
Injection temperature summer	15 C
Water flow temperatures from ground water varies according to season etc. Source: IF Technology

Table 2: Energy saving _ comparison with conventional
Conventional installation
Cooling with chiller	576GJ
Heating with gas-fired boiler 80%	2700
Total	3276GJ
Ground energy storage with heat pump
Cooling with energy storage	36GJ
Heating with heat pump and groundwater	1764GJ
Total	1800GJ*
*A saving of 45%. Source: IF Technology