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6 FAQs about [Generator cooling air zone diagram]
What are the different types of generator cooling systems?
Each generator set manufacturer offers different options for design of the cooling system. The two most common styles of cooling systems are closed loop and open loop systems. Closed loop systems incorporate cooling pump (s), cooling fan and radiator (s) located on a skid as an all in one unit.
What are the components of a generator cooling system?
Coolant System – Each generator application can have a different cooling system configuration. Below is a general list of components: • Coolant pump – Depending on engine size, belt or gear driven. Circulates coolant throughout cooling system. • Radiator – Can be single or twin radiator design.
How does a generator cooling system work?
An ethylene glycol based coolant is circulated through the cooling system components. Three common cooling system configurations are: Single Pump Single Loop (SPSL) – SPSL systems are common in smaller to mid-size generator applications. Operation for this system as follows: • Engine starts, direct drive pump is driven and fan clutch is rotating.
What is a good air temp for a generator?
For a generator, the internal inlet air temperature is typically 35-40 degrees Celsius higher than the ambient temperature. This is known as the Overdesign Temperature Rise (ODP). The generator does not require any de-rating for single-wall applications with typical cooling water temperatures of 32 degrees Celsius.
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 cooling methods do GE use for two-pole generators?
The two primary methods currently used by GE for two-pole generators are radial flow cooling and diagonal flow cooling, as shown respectively in Figure 6 and Figure 7. Radial flow cooling is used for small and medi-um sized two-pole units and for large four-pole units.