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Condensing Economizer Heat Pipe Heat Exchanger From Exhaust From Degreasing Furnace
A condensing economizer heat pipe heat exchanger (HPHE) is an efficient system used to recover waste heat from exhaust gases, such as those from a degreasing furnace. This system can enhance overall energy efficiency by utilizing the heat that would otherwise be lost.
The heat pipe heat exchanger utilizes the principles of phase change and thermal conduction to transfer heat from the hot exhaust gases to a secondary fluid (usually water) without direct contact.
Design and Structure
Components:
Heat Pipes: Tubes filled with a working fluid that evaporates and condenses to transfer heat. The heat pipes are typically made from materials like copper or aluminum.
Evaporator Section: Located in the exhaust gas stream, where heat is absorbed, causing the working fluid to evaporate.
Condenser Section: Located in the secondary fluid stream, where the working fluid releases heat and condenses back to liquid.
Insulation: Surrounding the heat pipes to minimize heat loss to the environment.
Configuration:
The system can be designed in a vertical or horizontal orientation, depending on space constraints and the application.
Multiple heat pipes can be arranged in parallel or series to increase heat transfer capacity.
Operation
Heat Recovery Process:
Hot exhaust gases from the degreasing furnace flow over the evaporator section of the heat pipes.
The heat from the exhaust causes the working fluid inside the pipes to evaporate, creating vapor that rises to the condenser section.
In the condenser section, the vapor releases its heat to the secondary fluid (e.g., water), which may be used for preheating or other applications.
The working fluid condenses back into liquid and returns to the evaporator section to repeat the cycle.
Applications
Industrial Processes: Widely used in manufacturing facilities with degreasing furnaces to recover waste heat for use in other processes.
Preheating Water: The recovered heat can be used to preheat water for cleaning processes or to reduce energy consumption in boilers.
Space Heating: The recovered heat can also be utilized for space heating in facility areas.
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