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Presentation delivered at HEI - Energy Session on 4th December 2013 at Stamford Bridge on Combined Heat and Power (CHP) for hospitals. The presentation gives an outline of CHP technology along with cost and carbon saving implications. Finally the presentation highlights case studies for hospital cogeneration applications in the UK including Guy's & St Thomas', Broad Green, Great Ormond Street and More
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Customer project focused Installation design
Project management
Installation works
Commissioning
Maintenance
Parts stockholding
Product quality focused Engine design
Engine development
Engine manufacture
Parts production
Company history
2012Distribut
or for Tanzania
UK Banglades
h
France
Aus-tralia
India Nige-ria
South
Africa
China
New Zea-land
Irish Re-pub-lic
Tan-zania
Tunisia
Chile Mo-rocco
Italy Kenya
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SG - Methane Rich GasSG - FurnaceSG - GasificationNG - Peaking stationsNG - HospitalsNG - GreenhousesNG - Industrial NG - ResidentialNG - CommercialNG - IPPCG - WMMCG - AMMCG - CSG/CBMBG - SewageBG - LandfillBG - WastesBG - AgriculturalAG / flare gas
46.8 UK50.5 France9.0 Australia106.3 MW Total (270k+ homes equivalent)
Gas engine and combined heat and power (CHP) technology
Fuel (100%)
Electricity for
transmission (35%)
Generation/heat losses (65%)
Conventional Power Plant
Gas-fuelled CHP plant
90% Efficiency
Generation/heat losses (10%)
Fuel (100%)
Electricity (45%)
Useful Heat (45%)
Transmission Losses (1.5%)
Supplied electricity
(efficiency) 33.5%
1.80 kWh loss4.05 kWh
1.00 kWh electricity
1.25 kWh heat
Grid electricity
Boiler
1.47 kWh
2.58 kWh
2.5 kWh
Primary Energy Supply 1.00 kWh electricity
0.25 kWh losses
1.25 kWh heat
CHP engine
0.520kg CO2
0.270 kg CO2
0.790 kg CO2
0.460 kg CO2
42% CO2 reduction
38% Primary Energy Savings
2.08 kWh loss4.33 kWh
1.00 kWh electricity @ 8.42p/kWh
1.25 kWh heat
Grid Electricity
Boiler1.47 kWh gas @ 2.40p/kWh
2.86 kWh
2.5 kWh @ 2.31p/kWh
Primary Energy Supply 1.00 kWh electricity
0.25 kWh losses
1.25 kWh heat
CHP engine
8.42p
3.53p
11.95p
5.78p
45% cost reduction
Maintenance @ 0.84p/kWh
6.62p
Greater Savings
Greater Running Time
Sensitive Analysis
Safe Option
Oversized?
Jan Dec
A selection of case studies for the hospital CHP sector
Client: Nifes
Commissioned: July 2009
1 x J620
3MWe
Engines in tight space at behind existing boilers
Client: Nifes
Commissioned: July 2009
1 x J620
3MWe
Exhaust heat generates steam
International CHP showcase
Together save Foundation Trust
11,300 tonnes CO2 per year and £1.5m in energy costs
Client: NG BaileyCommissioning: Aug 20111 x J4201.4MWe & 1.4MWth
Higher noise attenuation specificationA particularly difficult install!Container on the roof!
Client: DalkiaCommissioning: May 20051 x J6162.2MWe & 2.3MWth
£70m redevelopment to improve services including CHP.
Natural gas J6121.8MWeExhaust heat fed into boiler to generate steam
Client: DalkiaCommissioning: Nov 1997 & Jul 20082 x J612 & 1 x J420 4.4MWe & 4MWth
2 replacement sets on order.
Client: CarillionCommissioning: Feb 2008
2 x J6123.3MWe & 2.7MWth
1.2MWth as hot water
1.5MWth as steam
Senator PointSouth Boundary Road Knowsley Industrial Park Liverpool L33 7RR [email protected]+44 (0)791 706 6242
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