Project

London Tube station lift shafts

Client

Scott Brownrigg
Thermal modelling of London Tube lift shafts ensured they could safely operate in all temperatures. Photo credit: Scott Brownrigg

Thermal modelling for London Tube station lift shafts

Unique project required sophisticated thermal modelling to ensure lift shafts operated within permitted temperature ranges

The challenge


Two new lift shafts needed to be installed at Cockfosters and Mill Hill East Tube stations in London.
  • The lift shafts extended from street to station level.
  • Temperature range needed to be within 5-40 degrees at all time.

The solution


  • “It was a unique project,” says Anthony Dale, senior sustainability consultant  at Darren Evans.“We carried out thermal modelling to make sure the lift shafts would always operate in the required temperature ranges.“As a lot of the structure was below ground, we had to consider the impact that had on U-values. We had to account for the insulating effect of the ground when calculating heat losses from the structures of the lift shaft as well as the piston effect of the lift’s movement to account for air change rates.”
  • Maximise energy efficiency: Fabric solutions included maximising the efficiency of Mechanical Ventilation with Heat Recovery (MVHR), alongside good architectural details to prevent heat leaving the building.

Results

  • Complex thermal models completed ensuring Tube station lift shafts never operate outside of permitted temperature ranges.
“The team at Darren Evans has been instrumental to the ongoing success of this project and the relationship that we have with our client. “Their work was accurate and time sensitive. I am really pleased with the way that they have approached the project and the support they have given.”
Michael Freude, associate architect and shareholder
Scott Brownrigg

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