Application
The project objective was to displace the existing fossil fuel heating system supporting a University Campus with a Public Sector Decarbonisation Scheme funded Open Loop/Aquifer based Heat Pump project.
Existing boreholes were utilised to provide the source energy for the high-temperature-capable water/water heat pumps, which delivered a heating capacity of 1,400kW.
Operating via boreholes meant that the annualised performance of the heat pump system, with the fixed borehole source temperature, was at a high level with a constant COP.
In terms of output flow temperature, the heat pump system on this application needed to deliver 75°C to meet the requirements of the University Campus Estate. This was a result of the existing infrastructure being limited in terms of the medial modifications that could be made to enable lower-temperature heat pump operation.
This enabled the heat pumps that were selected, being capable of delivering a high output temperature of 80°C, to be integrated directly with the existing system and provided a very straightforward retrofit design.
