Day 1 Training Session #2 Cogeneration & Power Plant Basics

Transcription

1 Day 1 Training Session #2 Cogeneration & Power Plant Basics Jim Noordermeer Noord Power Consulting Inc. An introduction to the basics of cogeneration and power plants, utilizing gas turbines and related equipment Presented at the 2017 Symposium on Industrial Application of Gas Turbines (IAGT) Banff, Alberta, Canada - October 2017 The IAGT Committee shall not be responsible for statements or opinions advanced in technical papers or in symposium or meeting discussions.

2 COGENERATION & POWER PLANT BASICS SHP / SEPARATE HEAT-AND-POWER: On-site heat/cooling production for industrial processes or space heating / cooling, and electricity from central large-scale power plants CHP / COGENERATION: The simultaneous production of two or more forms of useful energy (e.g. heat / cooling and electricity) from a single fuel source, usually on-site or nearby Jim Noordermeer, P.Eng. Training Session IAGT Symposium - Banff Noord Power Consulting Inc. Cogeneration & Power Plant Basics

3 COGENERATION & POWER PLANT BASICS MAJOR EQUIPMENT Usually associated with Cogeneration / CHP cycles Steam generator or boiler Steam turbine generator (STG) Gas turbine generator (GTG) Heat recovery steam generator (HRSG) Reciprocating Gas, Dual-Fuel or Diesel Engine Generator Jim Noordermeer, P.Eng. Training Session IAGT Symposium - Banff Noord Power Consulting Inc. Cogeneration & Power Plant Basics

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9 COGENERATION & POWER PLANT BASICS Exhibit #5 Steam-Generator and Back-Pressure Steam Turbine Jim Noordermeer, P.Eng. Training Session IAGT Symposium - Banff Noord Power Consulting Inc. Cogeneration & Power Plant Basics

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11 COGENERATION & POWER PLANT BASICS Exhibit #6 Steam-Generator and Condensing Steam Turbine Jim Noordermeer, P.Eng. Training Session IAGT Symposium - Banff Noord Power Consulting Inc. Cogeneration & Power Plant Basics

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13 COGENERATION & POWER PLANT BASICS Exhibit #7 Combined-Cycle Cogeneration (Lake Superior Power) Jim Noordermeer, P.Eng. Training Session IAGT Symposium - Banff Noord Power Consulting Inc. Cogeneration & Power Plant Basics

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15 COGENERATION & POWER PLANT BASICS Exhibit #8 Gas Turbine & HRSG (Whitby Cogeneration) World s 1 st Rolls-Royce Trent DLE IST dual-pressure OTSG (once-through steam generator) Jim Noordermeer, P.Eng. Training Session IAGT Symposium - Banff Noord Power Consulting Inc. Cogeneration & Power Plant Basics

16 How CHP Saves Gas CHP vs. Separate Heat and Power (SHP) Separate Heat & Power (SHP) 100 units Nat. Gas Gas-fired Power Plants Eff = 34.1%* Conventional Generation Electricity Line losses 5% Electricity = 32.4 units Thermal = 42.4 units Electricity Combined Heat and Power CHP 100 units Nat. Gas 54 units Nat. Gas Boiler Eff=78% Heat Heat Total gas consumption = 154 units Overall efficiency = 48% Total gas consumption = 100 units Overall efficiency = 75% 8 Gas Saving = 54 units or 35% of gas used in conventional generation (Annual savings depend on operating hours of power plants and CHP) Note: * Based on Intrinsik report for OPG (2016), All values reported on higher heating value

17 How CHP Reduces GHG Emissions CHP vs. Separate Heat and Power (SHP) 100 m 3 /hr Nat. Gas Gas-fired Power Plants Electricity Electricity = 340 kw Electricity 553 gm/kwh 54 m 3 /hr Eff = 34.1% Conventional Generation Separate Heat & Power (SHP) Nat. Gas 301 gm/kwh Boiler Eff = 78% Line losses 5% Heat Thermal = 1.52 MMBtu/hr Heat Combined Heat and Power CHP 100 m 3 /hr Nat. Gas Total gas consumption = 154 m 3 /hr CO2e emissions = 0.29 tonne/hr = 854 gm/kwh Total gas consumption = 100 m 3 /hr CO2e emissions = tonne/hr = 553 gm/kwh 9 CO2e Reduction = 301 gm/kwh of displaced electricity from gas plants (Annual savings depend on operating hours of power plants and CHP) Note: * Based on Intrinsik report for OPG (2016), All values reported on higher heating value

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32 COGENERATION & POWER PLANT BASICS TransCanada Energy Halton Hills Generating Station Jim Noordermeer, P.Eng. Training Session IAGT Symposium - Banff Noord Power Consulting Inc. Cogeneration & Power Plant Basics

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