CASE STUDY

University of York

Project Details

Client / University of York

Designing a 2km long heat network scheme

The project comprised pipe route design from the energy centre at Innovation Way to the University of York East Campus through Church Lane, crossing Field Lane and approaching the campus via Lakeside Way. Our specialist district heating (DH) design engineer was engaged by Vital Energi to value engineer and lead the design of this approximately 2km long new heat network scheme.

CasStudy-York University

One of the major benefits of the above design was that the multi-utility corridor provided a flexible, re-locatable solution to meet the requirements of the University's future development strategy.

The project involved the construction of an approximately 500m long multi-utility tunnel that was constructed from a 2m long concrete section reaching up to surface level and providing access to the services on the entire length, also functioning as a footpath. The utility corridor was designed to accommodate fibre optic and other communication cables, HV cables, a potable water pipe, and a pair of DN200/315 pre-insulated DH pipes. The DH pipes were installed on a support bracket with axial slide guides and fixed to the bottom of the concrete sections. As the tunnel was designed to be watertight, the DH pipe entry points had to be sealed on either end of the tunnel. Since the pipe entry seals are only able to provide watertight sealing up to a certain amount of the axial movement resulting from thermal expansion, the DH pipes had to be anchored to the concrete section. To minimise the lateral and vertical displacement of the pipes, multi-use compensators were installed between each anchor. Due to the major lifting forces that occurred at the anchors, the brackets that supported the anchor plates had to be braced to three concrete sections to be able to keep the pipes in place.

One of the major benefits of the design described above was that the multi-utility corridor provided a flexible, re-locatable solution to meet the requirements of the University’s future development strategy.

A variety of stakeholders were involved in this project, including:

  • Vital Energi
  • Logstor
  • Support Systems
  • University of York