#Compressor 4.2.2 generator#
#Compressor 4.2.2 free#

Microturbines are small gas turbines, most of which feature an internal heat exchanger called a recuperator. In CHP applications, the waste heat from the microturbine is used to produce hot water, to heat building space, to drive absorption cooling or desiccant dehumidification equipment, and to supply other thermal energy needs in a building or industrial process. Unattended operation is important since these locations may be remote from the grid, and even when served by the grid, may experience costly downtime when electric service is lost due to weather, fire, or animals.

#Compressor 4.2.2 free#

Microturbines are currently operating in resource recovery operations at oil and gas production fields, wellheads, coal mines, and landfill operations, where byproduct gases serve as essentially free fuel.

Target customers include financial services, data processing, telecommunications, restaurant, lodging, retail, office building, and other commercial sectors. Peak shaving and base load power (grid parallel).Microturbines are ideally suited for distributed generation applications due to their flexibility in connection methods, ability to be stacked in parallel to serve larger loads, ability to provide stable and reliable power, and low emissions. The potential for reduced maintenance and high reliability and durability is currently being demonstrated in actual applications. Low emission combustion systems are being demonstrated that provide emissions performance comparable to larger gas turbines. The systems are air cooled and some designs use air bearings, thereby eliminating both water and oil systems used by reciprocating engines. Efficiencies generally decrease at elevated ambient temperatures. Microturbine systems are capable of producing power at around 25-33 percent efficiency by employing a recuperator that transfers exhaust heat back into the incoming air stream.

#Compressor 4.2.2 generator#

In most configurations, a high speed turbine (100,000 rpm) drives a high speed generator producing direct current (DC) power that is electronically inverted to 60 Hz (or 50 Hz) AC. A schematic of a microturbine-based CHP system is shown in Figure 4-4. In resource recovery applications, they burn waste gases that would otherwise be flared or released directly into the atmosphere.Дesigned to combine the reliability of auxiliary power systems used on board commercial aircraft with the design and manufacturing economies of turbochargers, the units are targeted at CHP and prime power applications in commercial buildings and light industrial applications. They are able to operate on a variety of fuels, including natural gas, sour gases (high sulfur, low Btu content), and liquid fuels such as gasoline, kerosene, and diesel fuel/distillate heating oil. Microturbines run at high speeds and, like larger gas turbines, can be used in power-only generation or in combined heat and power (CHP) systems. The size range for microturbines available and in development is from 30 to 400 kilowatts (kW), while conventional gas turbine sizes range from 500 kW to 350 megawatts (MW).

7.5 Energy Price Volatility in CHP Applications.

7.4 Illustrative Example Assessment of CHP Economic Viability.

7.2 LIFE CYCLE COST/NET PRESENT VALUE ANALYSIS.

6.8.2 General Equipment and Maintenance Costing.

6.8 Cost of CHP: Engineering and Installation Costs.

6.3.7 Use of Exhaust Gas as an Oxidant (including boiler systems).

6.3.2 Indirect Heating of Thermal Fluids.

5.1 HOT WATER/DIRECT CONTACT WATER HEATERS.

4.5.6 Performance and Efficiency Enhancements.

4.5.5 Process Steam and Performance Tradeoffs.

4.5.4 Steam Turbine Design Characteristics.

4.5 Steam Turbines and Rankine Bottoming Cycle.