TM 5-3895-374-24-2HEAT TRANSFER FLUID CIRCULATIONCET heaters are designed to transfer as much heat (created by burning diesel fuel or gas) as possible to theheat transfer fluid being circulated through the closed system by the circulating pump. When the heat transferfluid is returned to the heater, it is first circulated through the heat exchanger to absorb heat from the hot gasespassing inside the firetubes. Next, the heat transfer fluid is circulated around the firebox in a helical fashioncaused by the flow control rings. The heat transfer fluid then exits the firebox and is again circulated through theclosed system. Note that the heat transfer fluid never has to change directions when it has heat applied to it.This is important because it reduces the possibility of hot spots and, as a result, metal fatigue.(page 3-912)
Integrated Publishing, Inc. - A (SDVOSB) Service Disabled Veteran Owned Small Business
