The installation of a CHP unit to the Warwick Wing of the Hilton Birmingham Metropole Hotel

Cogeneration or Combined Heat and Power (CHP) is the simultaneous production of heat and power from a single fuel source. It is the single most effective method of reducing energy cost and CO2 emissions from a suitable building or process. CHP benefits the environment because it is the most efficient way of producing electricity and heat when compared to conventional fossil fuel power stations. New building regulations require the active consideration of CHP. For every kilowatt-hour of electricity produced by a 'good quality' CHP unit, the Carbon Dioxide emissions in the UK atmosphere are reduced by 265g. The project involved a turnkey installation of a 140kWe CHP set into an existing loading bay beneath the Warwick Wing chillers at the Hilton Birmingham Metropole Hotel. The CHP was connected as 'lead boiler' to the existing heating system. The core installation project took place between the dates of the 11th August and 8th December 2008 with handover of the unit on the 6th February 2009 following completion of the snagging works The project involved the following installation works: New boss butterfly isolation valves to the boiler low loss header pipework Interconnecting 100mm insulated pipework to and from the CHP complete with water circulation pump and isolating valves New gas isolation valve to the main gas pipework off the meter complete with 80mm gas pipework to the CHP set New 400A cartridge type switched fuse within dedicated enclosure next to existing LVAC panel Interconnecting 2x70mm 4Core steel wire armoured (SWA) cable to CHP + 70mm Current Protection Circuit (CPC) and all necessary containment 125mm Exhaust complete with thermal insulation to atmosphere and necessary condense pipework. 140kWe CHP set Value engineered weatherproofing to the CHP unit Supply and Extract ventilation to the CHP unit Since the installation of the unit the CHP set has generally run better than predicted, the graph to the right indicates how well the system has run so far.

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