Generator air inlet and outlet shaft

What is a diesel generator air intake & exhaust system?

The diesel generator air intake and exhaust system (DGAIES) provides the diesel engine with combustion air from the outside. The combustion air passes through a filter and silencer before being compressed by a turbocharger and cooled by the coolant system before entering the individual cylinders for combustion.

How much incoming air does a generator need?

A generator typically needs 35-40% over-sizing of the incoming air based on the internal generator inlet air temperature being ambient + 20 degrees Celsius. For typical 32 degrees Celsius water, there is no de-rate for single-wall application. The generator requires this amount of air for cooling purposes. For example, for every kilowatt of loss, the required flow is 1 gallon per minute.

What is a turbine inlet?

The first metal the hot gases from the combustion section strike is the turbine inlet. The temperature of the gas stream is carefully monitored to ensure that overtemperature does not occur. Compromises are made in turbine design to achieve the optimum balance of power, efficiency, cost, engine life, and other factors.

What are the exit components of a gas generator?

exit components to the gas generator. An always interesting component, in this context, is the thrust augmentation devices known as afterburners in a special class of adv nced propulsion systems (Figure 1.4). In principle, gas turbines are exclusively used to power airplanes, du

How does air filtration affect a gas generator?

moist air (due to humidity) to the allowable temperature. This fuel increase will increase the gas generator speed and compensate for the loss in air density. Inserting air filtration, silencing, evaporative coolers or chillers into the inlet or heat recov-ery devices in the exhaust causes pressure losses in the system.

What happens if a generator is oversized?

For a typical 20°C rise over ambient for the internal cooling circuit, an example of internal air temperature would be 40°C ambient + 30°C = 70°C. The ambient air temp remains constant, and the generator needs 35-40% over-sizing to equal an ODP (Overall Design Point). This generator has cooling water inlet and outlets (TEAWC, CACW).