What can be used to recover heat from exhaust gases?

What can be used to recover heat from exhaust gases?

Another technology that can be used to recover exhaust heat during warm-up to more rapidly warm up engine fluids is an exhaust heat exchanger, Figure 6 [3834] [3835] . A heat exchanger is placed in the exhaust system and engine coolant is circulated through it to more rapidly warm up the engine coolant.

Why are heat exchangers used in waste gases?

A heat exchanger helps to absorb or dissipate heat according to your specific requirements. Flue gas heat exchangers are also suitable for other material flows. In addition to air, these can also be (service) water, oils or other gases.

What is recuperator in furnace?

A recuperator is a type of heat exchanger that has separate flow paths for each fluid throughout its passages and heat is transferred through the separating walls. Most recuperators operate as counter-flow heat exchangers.

What is recuperator system?

A recuperator is a device used to reclaim heat energy from a heating, ventilation and air-conditioning (HVAC) system or industrial process. This device helps to improve energy efficiency, which can reduce costs associated with heating or manufacturing.

What is an exhaust gas heat exchanger?

An exhaust gas heat exchanger recovers heat energy from the exhaust gases of a reciprocating diesel, gas or bio gas fuelled engine and utilises this energy to heat water, which can then be used for space or process heating, cooling, via a chiller system or generating more electricity, via an ORC system.

How does waste heat recovery work?

The system works by guiding the exhaust gases from the furnace into a case which contains refractory material such as aluminium oxide [9]. The exhaust gas heats up the aluminium oxide media and the heat energy from the exhaust is recovered and stored.

What is the difference between regenerator and recuperator?

Regenerators and recuperators are heat exchange systems that recover heat by cycling through heat sinks (regenerators) or through a high temperature metallic heat exchanger (recuperators). The heat recovered by a regenerator or recuperator is most commonly used to preheat combustion air to a furnace.

Why recuperator is used?

Recuperators are often used in association with the burner portion of a heat engine, to increase the overall efficiency. For example, in a gas turbine engine, air is compressed, mixed with fuel, which is then burned and used to drive a turbine.

What is an EGR cooler?

The EGR cooler keeps the temperature of exhaust gases in the EGR system low. These gases then get recirculated into the engine to decrease the temperatures of the cylinders. The gas circulated in the system can get extremely hot, which is what makes the EGR coolers so important.

How does a plate heat exchanger work?

With a plate heat exchanger, heat cuts through the surface and separates the hot medium from the cold. Thus, heating and cooling fluids and gases use minimal energy levels. The theory of heat transfer between mediums and fluids happens when: Heat is always transferred from a hot medium to a cold medium.