COGENERATION & EFFICIENCY
Cogeneration is a highly efficient process
Cogeneration is a combined heat and power (CHP) production that is a highly efficient process that simultaneously generates electricity and heat. It can provide primary energy savings of approximately 40% compared to a separate purchase of electricity from the electricity grid and the production of heat by a gas boiler at the facility. Combined heat and power plants, as a rule, are built next to the source of energy consumption, and therefore reduce the costs of transportation and distribution of energy losses. For consumers of thermal and electric energy, it is generally very important to have a guaranteed supply of energy for their equipment and production, thus their own cogeneration system is an excellent solution to the problem. Gas cogeneration systems are ideal for power plants that are located directly at the site of energy consumption.
The sources of heat of GE Jenbacher gas engines can be obtained from:
- Cooling of engine oil.
- Cooling of exhaust gases.
- Cooling the engine cooling jacket.
- Cooling the gas-air mixture of the intercooler.
The thermal layout of the GE Jenbacher units is designed in such a way that a part of the useful thermal energy can be extracted in the form of hot water, in the flow mode 70/90° C (or other on request) and is divided at the boundary of the plate heat exchangers. The exhaust gases of the engine come with a temperature of 360 to 580° C. This potential can be used either for heating hot water, or directly in the recovery boiler to produce steam with a pressure of up to 30 bar. The exhaust potential can be used in the form of other heating sources (on request), for example, heating of thermal oil, kerosene, and other process fluids.
Efficiency of the CHP system
Combined heat and power systems with gas engines are measured based on the efficiency of the use of fuel gas energy. The energy of the fuel gas is converted into mechanical energy by burning gas in the cylinders of the engine and their subsequent action when turning the engine crankshaft. This mechanical energy, in turn, is used to rotate the generator and generate electricity. In this process, there is a small part of the losses, while the electric efficiency of the engine is more than 40% (depending on the engine version, the efficiency of electricity is 40 to 48.7%).
Advantages of gas co-generation from GE Jenbacher:
High efficiency CHP compared to traditional energy sources, which are purchased from energy companies, provides a number of advantages, including:
- Electricity is produced on site without loss of transportation with high efficiency.
- Saving money is achieved through overall efficiency up to 95%, thereby creating a quick payback of the project.
- An additional source of electricity increases the reliability of the enterprise due to the proven technologies of GE Jenbacher gas engines.
- Combined production of thermal and electric energy ensures the energy independence of the enterprise.
- Reduction of emissions occurs due to the combined generation of thermal and electric energy, respecting the environmental requirements.
Please contact KTS Engineering specialists and discuss your requirements.