Heat Recovery System
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- In detail
Redirect Industrial Heat
Inside your plant, warm coolant leaves your equipment—furnaces, air compressors, hydraulic units, electronics, and induction heaters—at temperatures between 100 degrees F and 140 degrees F. With a HydroThrift heat recovery system, this warm coolant is returned to the pump and control unit. Next, the warm coolant is pumped to the heat recovery unit where the heat is transferred. Heat recovery units may be one of several types:
- finned heating coil
- fin / propeller fan unit heater
- fin / centrifugal fan unit heater
- shell and tube heat exchanger
- plate and frame heat exchanger
This otherwise lost heat becomes useful and nearly cost-free. The heat can be dissipated directly into the plant area or into the ductwork that transfers it to other areas of the plant. The heat can also be utilized through the plate and frame or shell and tube heat exchangers to preheat boiler feed water or other process fluids. During cold-weather operation, the heat recovery unit(s) may remove enough heat from the coolant to provide adequate process cooling and distribute the entire heat load inside the plant where it's needed.
When the heat recovery equipment cannot utilize all the heat available, as in warm weather, the excess heat is rejected to the main heat exchanger—either the larger dry-type or evaporative closed-loop fluid cooler located outside the plant. Heat recovery units may also be used as cost-efficient air circulators in warm weather.
Heat recovery units for your closed-loop cooling system can be installed virtually anywhere in the plant. You can control the heat recovery units manually or automatically to efficiently transfer previously wasted heat.