Lincoln City Council.ppt

Lincoln City Council.ppt

Gas Turbines Based CHP Clean, Green & Sustainable Graldine Roy - Proposals Manager FEED Richard Williamson Framework Support Manager Derek Fothergill - Consultant Melton Mowbray, June 2013 Siemens AG, 2012 Gas Turbine heritage First established in 1857 - Joseph Ruston Gas Turbines since 1946 - Frank Whittle Agriculture Industry Gas Turbines Military Page 2 June 2013 Transport Siemens Energy Sector Industrial Gas Turbines Page 3 June 2013 Siemens Energy Sector Siemens Industrial gas Turbines Product Applications Power Generation Pumping Compressio n CHP Comb. Cycle An SGT-100 generating set is installed on Norske Shell's Troll Field platform in the North Sea

Thirty SGT-200 driven pump sets on the OZ2 pipeline operated by Sonatrach, Algeria Two SGT-700 driven Siemens compressors for natural gas liquefaction plant owned by UGDC at Port Said, Egypt. An SGT-800 CHP plant for InfraServ Bavernwerks chemical plant in Gendorf, Germany. Two SGT-400 generating sets operating in cogeneration/ combined cycle for BIEP at BPs Bulwer Island refinery, Australia Page 4 June 2013 Siemens Energy Sector Siemens Industrial Power: Industrial Turbines for all Your Needs Gas Turbines Gas turbines for power generation, combined heat & power and mechanical drives for all industrial applications. Small gas turbines from 5 up to 13 MW Medium gas turbines from 18.5 up to 50 MW Steam Turbines Steam turbines for power generation, combined heat & power and mechanical drives for all industrial applications Various design paradigms including: Predesigned steam turbines up to 10 MW Industrial steam turbines up to 250 MW Page 5

June 2013 Siemens Energy Sector Global Power market Demand for Power is steadily growing 37,100 Power generation mix worldwide, in TWh +2.8% p.a. 22,100 4% 16% 13% Renewables 15% Water 11% Nuclear 24% Gas 3% Oil 34% Coal 13% 22% 61% 4% 41% 67% 2030 2011 Fossil fuels remain the backbone - Renewables gain in importance Source: Siemens

Page 6 June 2013 Siemens Energy Sector Gas Turbines < 60 MW in CHP The Global Picture (1993-2012) MW GT orders 1993-2012 8000 7000 6000 5000 4000 3000 2000 1000 0 '93-'97 Africa Asia CIS 98-02 '03-07 America Latin Europe '08-12 America North Middle East 20000 The total market has been declining but it is slowly recovering 15000 MW GT based CHP < 60 MW - mainly used in Europe, USA and in Asia (SE Asia, Japan, India), lately also in emerging markets 10000 5000 0 '93-'97

98-02 '03-07 '08-12 Poly. (World) Page 7 June 2013 Siemens Energy Sector Conventional Energy Supply Central electricity generation and distribution through grid Waste heat from power generation is emitted with exhaust gases Power plant Page 8 Local production of heat with fossil fuel Conventional energy supply: Less efficient, more emissions Residential area June 2013 Industry Siemens Energy Sector Combined Heat and Power (CHP) or Cogeneration Medium-voltage power grid connection Local electricity Simultaneous production of power generation and heat from a single fuel source Combined Heat and Power: More efficient and lower emissions due to the recovery of waste heat

Power plant Page 9 Residential area June 2013 Industry Residential Local power area plant Industry Siemens Energy Sector CHP Benefits Environmental protection The high overall thermal efficiency of cogeneration minimizes the production of carbon dioxide. Other exhaust emissions can be controlled by the use of low emission combustion technology Profitability Energy costs can be a high proportion of the product cost in many industries. CHP can help reduce the energy costs by up to 30% Security of Supply CHP can increase the reliability of power supply. Production processes need to avoid unscheduled shutdown Page 10 June 2013 Siemens Energy Sector CHP: The drivers Business Drivers Improving spark spread ; energy cost : Gas/Oil prices Vs Electricity prices. Growing gas supply diversity and network. Energy cost Security of supply Environmental image Shale Gas, Landfill and other Bio gases. Security of energy supply. Legal/Environmental Drivers Climate change and reduction of emissions Government / EU Energy Directives - Reduced emissions of CO2.

Reduced emissions of NOx, particles, UHC, etc. National production subsidies. Reduction of greenhouse gases National tax exemptions or investment incentives. and other emissions Incentives CCL. Page 11 June 2013 Siemens Energy Sector Steam Raising Applications Based on SGT-100 Gas Turbine Condensing Steam Turbine 69.5 % 14 % Exhaust Power Output 53 % 9.5 % 37.5 % Steam Output By-pass Stack 6.0 % GT Power Output 30.0 % Exhaust Loss 14 % ST Power Output 9.5 % Low Grade Heat 37.5 % Output TOTAL. 91 % Difference is due to Gear, Generator, vent and Oil System losses

Damper Exhaust Heat Power Output Boiler Feed Fuel WaterGas Input 30.0 % Page 12 100 % June 2013 Siemens Energy Sector Steam Raising Applications Based on SGT-100 Gas Turbine Condensing Steam Turbine 400 OC 42 bar g Power Output 9.5 % 100 OC 126 OC Exhaust Steam Output 60 OC 103OC By-pass Stack Damper 544 OC Power Output Fuel Gas Input 30.0 % Page 13 Boiler Feed Water 100 % June 2013

Siemens Energy Sector Tri-generation Installation Network support Riverbay Co-op Development Hurricane Sandy hit Co-op City about as hard as it hit most anywhere else in New York City, but everybody in Co-op City had power before, during and after the storm, said Community Principal, Herb Freedman The Scheme provides:Riverbay Co-Op Development (New York) Co-op City is located in the northeast of New York and comprises 14,000 apartment units, 35 high-rise buildings, 8 parking garages, 3 shopping centres and 6 schools Page 14 electricity, heating and cooling for 60,000 residents in the Bronx area of New York. 40 MW electrical power is produced by two SGT-400 gas turbines and SST-300 steam turbine. Up to 16MW of electricity not used locally enters the New York power grid. June 2013 Siemens Energy Sector Tri-generation Installation Network support Riverbay Co-op Development Power Export Co-op Power Use HP Steam SST 300 40.0 MW 12.47 kV Exhaust 11.5% Waste Heat Damper Power Output By-pass Stack Exhaust Heat

17% Heat to Electricity SGT 400 17.5 % Heat to Electricity Steam Turbine LP Steam Cooling Water Flow Boiler Feed Water Exhaust Fuel Gas Input 11.5% Waste Heat Damper Exhaust Heat Power Output By-pass Stack SGT 400 Page 15 Fuel Gas Input June 2013 Chiller Condensate Boiler Feed Water 17.5 % Heat to Electricity Cooling Water Return Absorption

100 % Heat as Fuel Gas Chilled Water Flow Chilled Water Return 25% Usable Heat Siemens Energy Sector Option 1 Maximum Electrical Generation Breather Vent Air Outlet Oil Cooler Combined Combustion Inlet Air & Vent HEPA Air Filter By-Pass Stack Silencer Boiler Stack Roof Line Make-up Tank Silencer Deaerator Silencer Diverter Valve Waste Heat Steam Generator SGT 100-1 Gas Turbine Generating Set Fire Panel Boiler Feed Water Pumps Fuel Gas Compressor Air Compressor SST-110 Steam Turbine Generating Set Battery Room

Switchgear Room Control Room Water Treatment To District Heating (16 bar g,100 O C) Condenser From District Heating (8 bar g, 60 O C) Condensate Return Pumps Page 16 June 2013 Siemens Energy Sector Option 2 Maximum Heat Generation Breather Vent Air Outlet Oil Cooler Combined Combustion Inlet Air & Vent HEPA Air Filter By-Pass Stack Silencer Boiler Stack Roof Line Make-up Tank Silencer Silencer SGT 100-1 Gas Turbine Generating Set Diverter Valve Waste Heat

Hot Water Generator Water Treatment Fire Panel From District Heating (8 bar g,60 OC) Fuel Gas Compressor Air Compressor To District Heating (16 bar g,100 OC) Battery Room Switchgear Room Page 17 Control Room June 2013 Siemens Energy Sector Heat Transmission & Distribution Network Heat production from Heat Only Boilers maybe needed 2000 m 800 m 500 m 700 m CHP Plant 500 m HOB Plant Shops Housing Shops 750 m Thermal Storage for full or partial storage (load levelling) maybe needed Housing

Factory 800 m Heat Interface Unit Housing Housing Housing Housing Housing Page 18 June 2013 Housing Factory Distance m Main Housing Main Shops Main Factories 1600 1600 2600 1000 4000 1500 Pressure Loss Pa/m Pressure Loss bar 100 250 100 250 100 250 1.6 4.0 2.6 2.5

4.0 3.75 Total Loss bar 5.6 5.1 7.75 Siemens Energy Sector Indirect Domestic Heat Interface Unit PI Pressure Indicator TE TI Temperature Indicator Domestic Hot Water TE Thermal Element FE Flow Element Filter Isolating Valve Modulating Valve Heat Meter Drain Valve Double Check Valve Relief Valve District Hot Water Flow & Return PI TI TE TE FE PI TI Domestic Cold Water (Mains) Room Thermostat Controller

PI Filling Loop TE Central Heating District heating supply temperature can be as high as 100 OC minimising flow rate and hence pipe sizes. Page 19 June 2013 Siemens Energy Sector Performance Summary SGT- 100- 1S Power Generated kW Power Used (Run) kW Gas Turbine at 15OC 5242 Gas Turbine 55.9 Steam Turbine 1700 Steam Turbine 28.4 Total Power Generated 6942 Auxiliaries 497 Total District Heat 6527

System Usage Cycle efficiency 76.5% Operation at 15OC kW Power Generated 6942.0 Power Used Power for Export 581.3 581.3 6360.7 Study assumes all power is sold to a power company For Wind Farms the ratio is 1 kW per Home with the Grid taking up the peak loads Page 20 June 2013 Siemens Energy Sector Performance Summary SGT 400 Power Generated Gas Turbine at 15OC Steam Turbine kW 14049 4160 Power Used (Run) Gas Turbine 73.2 Steam Turbine 28.4 497 Total Power Generated

18209 Auxiliaries Total District Heat 13899 System Usage Cycle efficiency 80.1% Operation at 15OC Power Generated Power Used Power for Export kW 598.6 kW 18209.0 589.6 17610.4 Study assumes all power is sold to a power company For Wind Farms the ratio is 1 kW per Home with the Grid taking up the peak loads Page 21 June 2013 Siemens Energy Sector Possible Incremental Efficiency Improvements Low grade heat recovery Source Amount Use Cooling air from the generators Heat available is approximately 2% of the generated power Space heating

Ventilation air Heat available is approximately 2% of the generated power Space heating via an air/air heat exchanger Oil coolers coolant water Heat available is approximately 2% of the generated power Pre-heat boiler make-up water Page 22 June 2013 Siemens Energy Sector Payback Period SGT 100-1S Scheme Year 1 2 3 4 5 6 7 8 9 10 Hardware 6,601,500 6,601,500 6,601,500 6,601,500

6,601,500 6,601,500 6,601,500 6,601,500 6,601,500 6,601,500 Building + Costs 3,484,500 3,484,500 3,484,500 3,484,500 3,484,500 3,484,500 3,484,500 3,484,500 3,484,500 3,484,500 394,400 788,800 1,183,200 1,577,600 1,972,000 2,366,400 2,760,800 3,155,200 3,549,600 3,944,000 Fuel Cost

4,086,825 8,173,650 12,260,475 16,347,300 20,434,125 24,520,950 28,607,775 32,694,600 36,781,425 40,868,250 Total Cost 14,567,225 19,048,450 23,529,675 28,010,900 32,492,125 36,973,350 41,454,575 45,935,800 50,417,025 54,898,250 5,899,422 11,798,844 17,698,266 23,597,688 29,497,110 35,396,532 41,295,954

47,195,376 53,094,798 58,994,220 2.4693 1.6144 1.3295 1.1870 1.1015 1.0445 1.0038 0.9733 0.9496 0.9306 O&M Income Payback -Years Simple Payback in just over 7 years SGT 400 Scheme Year 1 2 3 4 5 6 7 Hardware 12,264,750 11,724,750

11,724,750 11,724,750 11,724,750 11,724,750 11,724,750 11,724,750 11,724,750 11,724,750 Building + Costs 4,384,250 4,384,250 4,384,250 4,384,250 4,384,250 4,384,250 4,384,250 4,384,250 4,384,250 4,384,250 422,500 845,000 1,267,500 1,690,000 2,112,500 2,535,000 2,957,500 3,380,000 3,802,500

4,225,000 Fuel Cost 9,305,100 18,610,200 27,915,300 37,220,400 46,525,500 55,830,600 65,135,700 74,440,800 83,745,900 93,051,000 Total Cost 26,376,600 35,564,200 45,291,800 55,019,400 64,747,000 74,474,600 84,202,200 93,929,800 103,657,400 113,385,000 Income 14,063,304 28,126,608 42,189,912 56,253,216

70,316,520 84,379,824 98,443,128 112,506,432 126,569,736 140,633,040 1.88 1.26 1.07 0.98 0.92 0.88 0.86 0.83 0.82 0.81 O&M Payback -Years 8 9 10 Simple Payback in less than 4 years Payback calculations ignore amortisation, inflation, cost escalation and any grants June 2013 Page 23 Siemens Energy Sector Effect of Ambient Temperature on Power 7500 Max & Min Temperature (1971 2000) at Waddington(68 m amsl)

40 7000 30 Temperature Deg - C N e t Power P ow e r- kW - kW Net Export Power - kW Export Power - kW 6500 6000 5500 -5 Average Daily Total Consumption - kWh 5000 -10 Page 24 0 5 10 15 20 Ambient Temperature Deg Ambient Temperature Deg CC 2 25 30 Max Min Extreme Max

Extreme Min 20 10 0 -10 -20 1 Jan 2 3 4 5 6 7 Feb Mar Apr May Jun Jul Month 8 9 10 11 12 Aug Sep Oct Nov Dec Detached Semi-detached 1.8 Terrrace 1.6 1.4 1.2 1 0.8 0.6 0.4 0.2 0 0 1 2

3 June 2013 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 Siemens Energy Sector Summary CHP high efficiency, cost effective, secure and proven Combined heat and power installations using gas turbines are well proven and widely used across process, manufacturing industries and District Heating worldwide. Gas turbines are the key to high efficiency CHP solutions. Waste heat is predominantly ejected through exhaust. This can be harnessed for steam production. Gas Turbines are capable of accepting base load whilst still providing acceptably high availability and reliability. Further enhancing security of power supply. We believe district hot water and heating is cost effective for new build projects such as housing, swimming pools, hotels and commercial buildings. Not so easy for existing especially old housing, due to cost of retrospective installation. Page 25 June 2013 Siemens Energy Sector Summary Savings and Improvements CHP gives cost savings with potential short payback periods. Matching the combination of units to optimise efficiency and financial return. Ducted hot air for adjacent buildings. Management of heat use from coolers and condensers will push efficiency up. Power utilised locally and exported. Large reduction in use of fossil fuel, to reduce carbon profile through efficiency and use of alternative gas sources (biogas from green waste, landfill gas from refuse, coke oven gas etc.). Page 26 June 2013 Siemens Energy Sector Thank you!

Geraldine Roy Proposals Manager - FEED E O IP T (0)1522 58 6819 [email protected] Richard Williamson Framework Support Manager FEED EOIP (0)1522 58 4213 [email protected] Po Box 1 Lincoln United Kingdom Siemens AG, 2012 Fuel Flexibility in Gas Turbines BIOMASS & COAL GASIFICATION 3.5 Other gas High Hydrogen Refinery Gases Associated Gas 37 Landfill & Sewage Gas 49 65 LPG Siemens Diffusion Off-shore lean Well head gas IPG Ceramics Operating Experience Off-shore rich gas Siemens DLE Units operating DLE Capability Under Development Pipeline

Quality NG Low Calorific Value (LCV) 10 Page 28 Medium Calorific Value (MCV) 20 June 2013 Normal 30 40 50 Wobbe Index (MJ/Nm) High Calorific Value (HCV) 60 SIT Ltd. Definition 70 Siemens Energy Sector SGT300, Fuel Flexibility with Low Emissions University of New Hampshire (UNH) 7.6 MW electrical power output 35 MWth steam output Overall CHP efficiency >77% Tri-fuel: Nat Gas or Nat Gas/Landfill Gas blend (Gas Wobbe Index range 32 to 49 MJ/Nm3) or Liquid Fuel Low Emissions to atmosphere: Nox > 15 ppmv Ambient temperature: -28OC to +32OC The cogeneration plant provides: 95% of steam demand 75% of electrical load Fuel efficiency of nearly 80% 30% reduction in Nox & 60% Sox Page 29 June 2013 Siemens Energy Sector SGT300, Fuel Flexibility with Low Emissions University of New Hampshire (UNH) Page 30

June 2013 Siemens Energy Sector BBC Television Centre - London BBC Television Centre, Wood Lane, London The Scheme provides:- The Centre provides studio, production and office facilities electricity, heating and cooling for the complex for its operations in the UK and abroad. 4.9 MW electrical power is produced by a dual fuel, low There is a continual demand for heating and electrical power from the offices, post-production areas, computer suites and studio lighting emissions SGT-100-1S gas turbine. Unfired waste heat steam generator produces 11,000 kg/h of 3.8 bar g steam. Standby power ( Auto switch to Island Mode) Page 31 June 2013 Siemens Energy Sector BBC Television Centre - London Exhaust Steam Output Steam Output Steam Output Air Air Air Forced Draught Fan Forced Draught

Fan Power Output 4.15 MW Boiler Feed Water Cold Standby Boilers Import/Export From/To Grid 11 kV Forced Draught Fan By-pass Stack Peak Demand 7 MW SGT 100-1S Hot Standby Boiler Exhaust Steam Output Chilled Water Return Chilled Water Flow Absorption Absorption Chiller Damper Absorption Chiller Absorption Chiller Fuel Gas Input Page 32 June 2013 Boiler Feed Water Water

Conditioning Make Up Water Chiller Siemens Energy Sector SGT-400 Industrial Gas Turbine CHP Installation - Wastewater Treatment plant Psyttalia 1 x SGT-400 generator set with WHRU In Commercial operation since 2007 Page 33 June 2013 EU granted 40 million of funding for the Ministry of Public works to commission a new sludge-drying plant on the island , fuelled by natural gas Siemens Energy Sector

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