Heat Recovery Opportunities


What is heat recovery?

Heat produced in a thermodynamic cycle, as in a furnace, combustion engine etc., can be used in another process, such as heating feedwater or air to save energy and reduce related costs.


Sources:

There are numerous sources for heat recovery, including but not limited to:

process plant cooling systems​, refrigeration plants, air compressors, hot liquid effluents, etc.


Used in:

There are also a variety of ways to use this recovered heat:

hot water generation (i.e. boiler feed)​, industrial process (heating/pre-heating)​, space heating, pre-heating ventilation/ combustion air, power generation, etc.



Refrigeration: Low V. high grade heat recovery:

  • Condenser heat rejection (typically 80 – 90% of total heat rejection) can be a good source of low grade heat.

  • Generally 10 – 20% of the heat from a refrigeration system is high grade.

  • However, low grade heat can be upgraded to high grade through the use of heat pumps.

Low High



CO2 heat pump: heat recovery:


A heat pump can be used in heat recovery in both commercial/ residential buildings & in industrial applications.


  • In a commercial/ residential building, the cold side of the heat pump is used to supplement the chiller while the the hot side is to supply Domestic Hot Water (195°F can be tempered to 125°F in buffer tank)​.



  • With industrial applications, high grade heat is produced for process needs​. Waste water available at 105°F is used as a heat source​ and the heat exchanger can be used to isolate process water.






Heat recovery can be an efficient way to reduce waste & energy use in your facility and help bring down costs. Heat recovery increases overall efficiency and makes for a smoother process.

Contact us for a free consultation so we can identify the best option for your specific application!



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