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.
