heat rejection

Heat Rejection Condensing:

Heat rejection Condensing unit is the excess heat from a cooling system which is removed by the condenser/cooling tower. Heat rejection is the total amount of heat energy which is transferred from the cool side to the warm side, plus the work carried out by the compressor.


Heat rejection system
http://Heat rejection system heat exchangers


Heat rejection Condensing unit is by necessity produced both by machines that do work and in other processes that use energy , for example in a refrigerator warming the room air or a combustion engine releasing heat into the environment. The need for many systems to reject heat as a by-product of their operation is fundamental to the laws of thermodynamics . Waste heat has lower utility than the original energy source. Sources of waste heat include all manner of human activities, natural systems, and all organisms. Instead of being “wasted” by release into the ambient environment, sometimes waste heat can be utilized by another process, or a portion of heat that would otherwise be wasted can be reused in the same process if make-up heat is added to the system (as with heat recovery ventilation in a building).
To understand why an efficiency of 73% is not possible we must analyze the Carnot cycle, then compare the cycle using real and ideal components. We will do this by looking at the T-s diagrams of Carnot cycles using both real and ideal components. The energy added to a working fluid during the Carnot isothermal expansion is given by qs. Not all of this energy is available for use by the heat engine since a portion of it (qr) must be rejected to the environment.


  1. Appearance design, compact and reasonable structure, easy to install.
  2. Selection of high efficiency, low noise External rotor motor.
  3. Rifled cooper tube heat exchanger and cooling piping design, improve the condenser for heat.
  4. Units within the class of system control and protection of components, control of accurate, reliable operation.
  5. Selection of international brand-name compressor, strong power and long life.
  6. The small fans are designed within unit, effective dissemination of the compressors and the heat storage liquid.


  1. Refrigerator, freezer and water dispenser.
  2. Industrial and home dehumidifier
  3. Commercial and home ice maker.
  4. Air conditioner including household A/C, central A/C, commercial A/C, military A/C and portable A/C.
  5. Automobile air conditioner.
  6. Train Air conditioner in railway and metro.
  7. Refrigerating showcase