UK's fifth busiest airport.
Various Works - £30m
Hulley & Kirkwood were employed to provide on-site Mechanical & Electrical Services Design support alongside the Contractor’s own Designers, Project Managers and Installers. On site installation support was also provided.
Project completion with full Installation co-ordination drawings to allow sub-contractor fabrication drawings for approval to the Project Managers and BAA’s own new works project team.
The combined mechanical and electrical services installation value was approximately £12 million, with the installation works split into logical construction phases in accordance with BAA requirements to maintain the airport in an operational state at all times during the works.
East Expansion Project - £25m
Terminal Chillers Strategy and Chiller Replacement - £2m
Hulley & Kirkwood were commissioned by Edinburgh Airport to produce a Chiller Replacement Strategy for the existing circa 5000kW of cooling delivered through two separate chilled water systems to AHU plant, chilled water cassettes and to retail unit supplies throughout the terminal. Rather than replace total cooling capacity on a like for like basis, we undertook to build a dynamic computer simulation model of the facility and simulate internal cooling demands against a design summer year ambient weather profile recorded at the airport. This analysis illustrated that peak simultaneous cooling would not actually exceed 4000kW demand. This led us to conclude a new terminal chiller strategy which could consolidate the two systems into one to provide greater resilience on chiller plant failure scenarios as well as a reduced total cooling capacity being required – in essence providing a value engineered saving in plant capital costs.
Furthermore, Hulley & Kirkwood analysed a future cooling strategy which includes the provision of CHP with heat recovered to drive an absorption chiller which could operate as a base load cooling device for the retail areas all year round cooling demand. The consequences of such a strategy would be to significantly reduce energy cost by displacing grid supplied electricity as well as significantly reduce carbon emissions.
Dynamic Simulation Modelling carried out by HK to evaluate peak simultaneous cooling demand arrived at the best value solution for the airport. The simulation model was also employed to determine the required temporary cooling units to be placed in various "hot spots" whilst chiller systems were down. The data was presented in such a way as to provide passenger and staff comfort indices with and without temporary cooling through simulation modelling in order that the Edinburgh Airport estates team could use informed decision making to provide temporary cooling where only absolutely necessary.