Engine-Mounted Water Cooling Radiator
Engine-mounted radiators offer the simplest cooling system. Factory-matched for the engine and application, designers and installers need to only worry about providing adequate ventilation.
In enclosures, radiator ducting should be larger than the radiator core, with inlet air ducts 1.5 times larger than outlet air ducts. Although louvers minimize exposure to the elements and vandalism, vent size must be increased 25 percent because they inhibit air movement, even when fully open. These should mechanically, electrically or pneumatically controlled to fully open when the engine starts. However, if units are exercised at no load, louvers should automatically adjust to maintain air temperature allowing the engine to warm to normal operating temperature.
Remote Water Cooling Radiator
Though remote radiators allow units to be placed well within a building, the heat from engine operation must be dissipated elsewhere. However, system design grows in complexity. Additional piping and fittings add to initial cost and system maintenance. In cases of long pipe runs, oversized piping may be needed to meet flow requirements.
Several installation points are unique to remote radiators. A remote radiator should not be located more than 17.5m (57 feet) above the engine water pump. Otherwise, the excessive head pressure will likely cause the water pump seal to leak.
For installations where the radiator is mounted below the engine, an expansion tank is needed. If the expansion tank is mounted on the engine, the radiator core must withstand full pump pressure. This system usually requires a round tube radiator. If the radiator has a vertical core, reverse water flow through the radiator to eliminate any trapped air in the inlet tank. EPG Designer can help you identify the best components for your installations.
