Cogeneration Power Plant Math

The remainder of the energy is lost as waste heat.

Cogeneration power plant math. Trigeneration or combined cooling heat and power cchp refers to the simultaneous generation of electricity and useful heating and cooling from the combustion of a fuel or a solar heat collector. Reciprocating engine i 70 85 2. A around 150 c b around 500 c c around 300 c d around 400 c 7. Most of that heat can be captured and used for other purposes.

If the plant releases that heat into the environment as exhaust it represents a huge waste of energy. Refer figure 2 1 top figure 2 1. Centralised power plant grid power and steam from a fuel fired steam boiler the total fuel input needed is 100 units. As a result power plants that make use of cogeneration can operate with as much as 50 70 percent higher energy efficiency.

Cogeneration or combined heat and power chp is the on site generation of electricity from waste heat. Cogeneration system over all efficiency 1. Cogeneration bottom compared with conventional generation top if the same end use of 24 units of electricity and 34 units of heat by opting for the cogeneration route as in fig 2 1 bottom fuel input requirement would be only 68. Cogeneration or combined heat and power chp is the use of a heat engine or power station to generate electricity and useful heat at the same time.

Cogeneration works by capturing that otherwise wasted heat and repurposing it to produce more electricity heat utility fluids or heat the air inside buildings. Extraction condensing steam turbine iii 75 85 4. When a power plant generates electricity it produces heat. In a combined cycle power plant consisting of gas turbine and waste heat boiler the exhaust gas temperature is.

Cogeneration systems are often based on thermal electrical generating stations such as fossil fuel and nuclear plants where the energy content of a resource normally a fossil or nuclear fuel is converted to heat in the form of steam or hot gases which is then converted to mechanical energy in the form of a rotating shaft which in turn is converted to electricity. When that repurposing of heat occurs the power plant is working as a cogeneration system. This translates to both increased profit and sustainability.