Cogeneration Technologies

7/30/2019 Cogeneration Technologies

1/6

Cogeneration TechnologiesWholly-owned Subsidiaries of EcoGeneration Solutions, LLC.

E-mail: info @ cogeneration dot net Tel. (281)955-7343

Cooler, Cleaner, Greener Power & EnergySolutions

Home| Contact Us|Links

Combined Cycle Power Plantswww.CombinedCyclePowerPlants.comTM

We provide turnkey Combined Cycle Power Plant

EPC (engineering, procurement and construction) servicesWe provide "turnkey" cogeneration/combined cycle power plantdevelopment services. We provide Demand Side Managementdesign and project development solutions that may provide a returnon investment in less than 12 months. We also offer energy-savingtechnologies that may include; Absorption Chillers, AdsorptionChillers, Automated Demand Response, Cogeneration, DemandResponse Programs, Demand Side Management, Energy MasterPlanning, Engine Driven Chillers, Trigeneration and EnergyConservation Measures.

Unlike most companies, we are equipment supplier/vendor neutral.This means we help our clients select the best equipment for theirspecific application. This approach provides our customers withsuperior performance, decreased operating expenses and increasedreturn on investment.Our company provides turn-key project solutions that include all orpart of the following:

Engineering and Economic Feasibility Studies Project Design, Engineering & Permitting Project Construction Project Funding & Financing Options Project Ownership/Long-term Lease - with no capital

requirements - . Project Commissioning Operations & Maintenance

For more information: call us at: 281-955-7343 or 832-758-0027
http://www.cogeneration.net/index.htmhttp://www.cogeneration.net/index.htmhttp://www.cogeneration.net/contact.htmhttp://www.cogeneration.net/contact.htmhttp://www.cogeneration.net/links.htmhttp://www.cogeneration.net/links.htmhttp://www.combinedcyclepowerplant.com/http://www.cogeneration.net/Absorption_Chillers.htmhttp://www.cogeneration.net/Adsorption_Chillers.htmhttp://www.cogeneration.net/Adsorption_Chillers.htmhttp://www.cogeneration.net/automated_demand_response.htmhttp://www.cogeneration.net/Cogeneration.htmhttp://www.cogeneration.net/demand_response_programs.htmhttp://www.cogeneration.net/demand_response_programs.htmhttp://www.cogeneration.net/Demand_Side_Management.htmhttp://www.cogeneration.net/energy_master_planning.htmhttp://www.cogeneration.net/energy_master_planning.htmhttp://www.cogeneration.net/Engine_Driven_Chillers.htmhttp://www.cogeneration.net/Trigeneration.htmhttp://www.cogeneration.net/EnergyConservationMeasures.htmhttp://www.cogeneration.net/EnergyConservationMeasures.htmhttp://www.cogeneration.net/contact.htmhttp://www.cogeneration.net/links.htmhttp://www.combinedcyclepowerplant.com/http://www.cogeneration.net/Absorption_Chillers.htmhttp://www.cogeneration.net/Adsorption_Chillers.htmhttp://www.cogeneration.net/Adsorption_Chillers.htmhttp://www.cogeneration.net/automated_demand_response.htmhttp://www.cogeneration.net/Cogeneration.htmhttp://www.cogeneration.net/demand_response_programs.htmhttp://www.cogeneration.net/demand_response_programs.htmhttp://www.cogeneration.net/Demand_Side_Management.htmhttp://www.cogeneration.net/energy_master_planning.htmhttp://www.cogeneration.net/energy_master_planning.htmhttp://www.cogeneration.net/Engine_Driven_Chillers.htmhttp://www.cogeneration.net/Trigeneration.htmhttp://www.cogeneration.net/EnergyConservationMeasures.htmhttp://www.cogeneration.net/EnergyConservationMeasures.htmhttp://www.cogeneration.net/index.htm


2/6

Are you selling your Combined Cycle Power Plant?

List it with the Combined Cycle Power Plant Leader

and at the industry's "official" website:

www.CombinedCyclePowerPlants.com

Are you in the market for a Combined Cycle Power Plant?

Call us (281) 955-7343

If your combined cycle power plant is in running condition, and you have all

maintenance/repair and overhaul logs, e-mail us at: [email protected] and

include all details and information and we will let you know if your equipment

can be listed here.

We may be interested in buying your combined cycle power plant.

For more information about listing or selling your combined cycle power plant e-

mail us at [email protected]

To See Our Complete Equipment Inventory List - click here

For New & Used Combined Cycle Power Plant sales/listings

call 281-955-7343 or 832-758-0027

We provide "turnkey" cogeneration/combined cycle power plant development

services.

Unlike most companies, we are equipment supplier/vendor neutral. This means we

help our clients select the best equipment for their specific application. This

approach provides our customers with superior performance, decreasedoperating expenses and increased return on investment.

Our company provides turn-key project solutions that include all or part of the

following:

Engineering and Economic Feasibility Studies

Project Design, Engineering & Permitting

Project Construction

Project Funding & Financing Options

Project Ownership/Long-term Lease - with no capital requirements - .

Project Commissioning Operations & Maintenance

For more information: call us at: 281-955-7343 or 832-758-0027

Combined Cycle Power Plants

The combined-cycle unit combines the Rankine (steam turbine) and Brayton (gas turbine)
http://www.combinedcyclepowerplants.com/mailto:[email protected]:[email protected]://www.combinedcyclepowerplants.com/mailto:[email protected]:[email protected]


3/6

thermodynamic cycles by using heat recovery boilers to capture the energy in the gas turbineexhaust gases for steam production to supply a steam turbine as shown in the figure "Combined-Cycle Cogeneration Unit". Process steam can be also provided for industrial purposes.

Fossil fuel-fired (central) power plants use either steam or combustion turbines to provide themechanical power to electrical generators. Pressurized high temperature steam or gas expandsthrough various stages of a turbine, transferring energy to the rotating turbine blades. The turbineis mechanically coupled to a generator, which produces electricity.Steam Turbine Power Plants:

Steam turbine power plants operate on a Rankine cycle. The steam is created by a boiler,where pure water passes through a series of tubes to capture heat from the firebox and then boilsunder high pressure to become superheated steam. The heat in the firebox is normally providedby burning fossil fuel (e.g. coal, fuel oil or natural gas). However, the heat can also be providedby biomass, solar energy or nuclear fuel. The superheated steam leaving the boiler then entersthe steam turbine throttle, where it powers the turbine and connected generator to makeelectricity. After the steam expands through the turbine, it exits the back end of the turbine,where it is cooled and condensed back to water in the surface condenser. This condensate is thenreturned to the boiler through high-pressure feedpumps for reuse. Heat from the condensingsteam is normally rejected from the condenser to a body of water, such as a river or coolingtower.

Steam turbine plants generally have a history of achieving up to 95% availability and canoperate for more than a year between shutdowns for maintenance and inspections. Theirunplanned or forced outage rates are typically less than 2% or less than one week per year.

Modern large steam turbine plants (over 500 MW) have efficiencies approaching 40-45%. These plants have installed costs between $800 and$2000/kW, depending onenvironmental permitting requirements.
http://www.cogeneration.net/


4/6

Combustion (Gas) Turbines:Combustion turbine plants operate on the Brayton cycle. They use a compressor to

compress the inlet air upstream of a combustion chamber. Then the fuel is introduced and ignitedto produce a high temperature, high-pressure gas that enters and expands through the turbinesection. The turbine section powers both the generator and compressor. Combustion turbines arealso able to burn a wide range of liquid and gaseous fuels from crude oil to natural gas.

The combustion turbines energy conversion typically ranges between 25% to 35%efficiency as a simple cycle. The simple cycle efficiency can be increased by installing arecuperator or waste heat boiler onto the turbines exhaust. A recuperator captures waste heat inthe turbine exhaust stream to preheat the compressor discharge air before it enters thecombustion chamber. A waste heat boiler generates steam by capturing heat form the turbineexhaust. These boilers are known as heat recovery steam generators (HRSG). They can providesteam for heating or industrial processes, which is called cogeneration. High-pressure steamfrom these boilers can also generate power with steam turbines, which is called a combined cycle(steam and combustion turbine operation). Recuperators and HRSGs can increase thecombustion turbines overall energy cycle efficiency up to 80%.


5/6

Combustion (natural gas) turbine development increased in the 1930s as a means of jet

aircraft propulsion. In the early 1980s, the efficiency and reliability of gas turbines hadprogressed sufficiently to be widely adopted for stationary power applications. Gas turbinesrange in size from 30 kW (micro-turbines) to 250 MW (industrial frames). Industrial gasturbines have efficiencies approaching 40% and 60% for simple and combined cyclesrespectively.

The gas turbine share of the world power generation market has climbed from 20 % to 40% of capacity additions over the past 20 years with this technology seeing increased use for baseload power generation. Much of this growth can be accredited to large (>500 MW) combinedcycle power plants that exhibit low capital cost (less than $550/kW) and high thermal efficiency.

The capital cost of a gas turbine power plant can vary between $35000-$950/kW with thelower end applying to large industrial frame turbines in combined cycle configurations.Availability of natural gas-fired plants can exceed 95%. In Canada, there are 28 natural gas-firedcombined cycle and cogeneration plants with an average efficiency of 48 %. The average poweroutput for each plant was 236 MW with an installed cost of around $ 500/kW.

Simple Cycle Power Plants (Open Cycle)

The modern power gas turbine is a high-technology package that is comprised of a compressor,combustor, power turbine, and generator, as shown in the figure "Simple-Cycle Gas Turbine".


6/6

In a gas turbine, large volumes of air are compressed to high pressure in a multistage compressorfor distribution to one or more combustion gases from the combustion chambers power an axialturbine that drives the compressor and the generator before exhausting to atmosphere. In thisway, the combustion gases in a gas turbine power the turbine directly, rather than requiring heattransfer to a water/steam cycle to power a steam turbine, as in the steam plant. The latest gasturbine designs use turbine inlet temperatures of 1,500C (2,730F) and compression ratios as highas 30:1 (for aeroderivatives) giving thermal efficiencies of 35 percent or more for a simple-cyclegas turbine.

Employment Opportunities
http://www.cogeneration.net/employment%20opportunities.htmhttp://www.cogeneration.net/http://www.cogeneration.net/employment%20opportunities.htmhttp://www.cogeneration.net/employment%20opportunities.htm

Cogeneration Technologies

Documents

Transcript of Cogeneration Technologies