Gas CHP or Cogeneration System

Gas Combined Heat and Power (CHP), also known as cogeneration, is an efficient energy-generation technology that simultaneously produces electricity and useful heat from a gas engine. By utilizing heat that would otherwise be wasted, a CHP system can significantly improve overall fuel utilization and may achieve primary energy savings of approximately 40% compared with separately purchasing electricity from the grid and producing heat with a conventional gas boiler.

Gas CHP systems are typically installed close to the point of energy consumption. This helps minimize electricity transmission and distribution losses while improving overall energy efficiency.

For facilities requiring a reliable and secure power supply where natural gas or other suitable gas fuels are readily available, gas-based cogeneration systems provide an effective solution for on-site captive power generation.

How Gas CHP Recovers Waste Heat

A gas engine produces useful thermal energy during operation. CAMDA CHP systems recover heat from several key sources:

1. Engine jacket cooling water

2. Air intake intercooler

3. Engine exhaust gases

CAMDA uses plate heat exchangers to recover heat from the engine cooling water and intercooler, while an exhaust heat exchanger captures thermal energy from the engine exhaust gases.

The recovered heat can be used to produce hot water for on-site heating and other thermal applications, improving the overall energy utilization of the gas engine.

CHP System Working Principle

The basic CHP process consists of:

Gas Fuel → Gas Engine → Electricity + Waste Heat Recovery → Hot Water / Useful Heat

Instead of releasing engine heat into the environment, the CHP system captures and reuses it. This allows a single fuel source to provide both electrical and thermal energy.

Gas CHP Applications

Gas cogeneration systems can operate with a variety of gas fuels, depending on gas quality and project requirements. Typical applications include:

• Natural gas CHP

• Biogas CHP

• Coal gas CHP

• Industrial cogeneration

• Commercial buildings

• Factories and manufacturing facilities

• Wastewater and biogas treatment plants

• Agricultural and livestock facilities

• On-site captive power plants

• Facilities requiring simultaneous electricity and hot water