Heat Pipe Exchanger And Heat Pipe Top Manufacturers “Manor”

Heat pipes are a low cost solution to the cooling problem, but they are very effective and have great potential as volume requirements and power levels increase. For these reasons, heat pipes have been applied mainly in applications which require special working conditions and maintenance, such as in aircraft devices, in space thermal control, in cooling of closed cabinets in harsh environmental conditions, in audio amplifiers, etc.

MANOR, a Seventeen year’s young organization, headed by a group of technocrats, emerged with a vital directive of presenting state of the art products and services in the field of Energy Savings. We are glad as manufacturers of Energy saving equipment’s such as Heat Pipe Heat Recovery System, Desuperheaters and Econet Systems.

Manor is a part of MANIK Group. The group consists of Manik Engineers which is a well known brand for Refrigeration Controls, serving in many industries for the past 30 years in India and “MANIKS”, the number brand in India for Dust Collector Pulse Solenoid Valves and timers.

The company was started by Mr. Shekhar Kulkarni, an IIT Powai Alumni, in 1978. We have different manufacturing plants in Pune for various product ranges. With the vast experience of MANOR’S Guru in the Air-conditioning and Refrigeration Industry, MANOR has chosen “Waste Heat Recovery through AC & R Compressors ” as the contrivance to achieve large energy savings in the segments like Hotel & Hospitality, Pharma & Chemical, Specialty Hospitals, Textile, Dairy & Food Beverages,  etc.

 

What is a Heat Pipe?

A heat pipe heat exchanger is a simple device which is used to transfer heat from one location to another, using an evaporation-condensation cycle. Heat pipes are referred to as “superconductors” of heat due to their fast transfer capability with low heat loss. It is a self-contained passive energy recovery device. A heat pipe can transfer up to 1000 times more thermal energy, than copper, the best known conductor; that too with less than 57?/meter temperature drop. One of the well known features of the heat pipes is that they do not have any moving parts and hence require minimum maintenance. They are completely reversible and silent in operation and do not require any external energy other than the thermal energy. Heat pipes are ruggedly built and can bear a lot of abuse.

Operation of Heat Pipe:

Hollow cylinder filled with a vaporizable liquid under vacuum. The Heat Pipe functions as follows

  • Heat is absorbed in the evaporating section.
  • Fluid boils to vapor phase.
  • Heat is taken away from the upper part of cylinder to the environment; then vapor condenses to liquid phase.
  • Liquid returns by gravity force to the lower part of cylinder (i.e. evaporating section).

When heat is added to the evaporator section, the working fluid is boiled and converted into vapor absorbing latent heat.

After reaching at the condenser section, due to partial pressure build up, the vapor is transformed backwards into liquid thus latent heat is released. From the condenser section, heat is then taken out by means of air cooling/water cooling with fins etc. The liquid then returns to the original position through the capillary return method, thus completes the cycle. Due to very high latent heat of fluid vaporization a large quantity of heat is transferred.

Heat pipes are vacuum vessels that are filled partially with a working fluid, typically water/air in electronic cooling, which serves as the heat transfer medium. The heat pipe envelope is made of copper in different types of shapes including rectangular, cylindrical, or any other enclosed type. The wall of the pipe is lined with a wick structure, which provides surface area for the capillary capability  and condensation /evaporation cycle. Since the heat pipe is evaporated and then charged with the working fluid prior to being sealed, the internal pressure required is set by the vapor pressure of the working media.

When heat is applied to the surface of the heat pipe, the working water is vaporized. The vapor formed at the evaporator section is at a slightly higher in temperature and pressure than other areas. This creates a pressure gradient that forces the vapor to flow towards the cooler regions of the heat pipe. As the vapor condenses on the heat pipe walls, the latent heat of vaporization is transferred to the condenser. The capillary lined wick then transports the condensate back to the evaporator section. This closed loop process continues as long as heat is applied.

MANOR’s  Heat Pipe :

Hollow cylinder filled with a vaporizable liquid under vacuum. The Heat Pipe functions as follows

  • Heat is absorbed in the evaporating section.
  • Fluid boils to vapour phase.
  • Heat is released from the upper part of cylinder to the environment; vapour condenses to liquid phase.
  • Liquid returns by gravity to the lower part of cylinder (evaporating section).

When heat is added to the evaporator section, the working fluid boils and converts into vapor absorbing latent heat.

After reaching the condenser section, due to partial pressure build up, the vapor transforms back into liquid thus releasing latent heat. From the condenser section, heat is taken away by means of water cooling / air cooling with fins etc. The liquid condensate returns to the original position through the capillary return mechanism, completing the cycle. Due to very high latent heat of vaporization a large quantity of heat can be transferred.

 

Hot Gas to Liquid Heat Pipe Heat Exchangers :

This heat exchanger resembles Air to Air unit, only difference is liquid/water tank is provided at the condensation section to preheat liquid / water.

Manor heat pipe heat exchanger can recover up to 85% of exhausted thermal energy. However under ideal conditions the thermal efficiency of an economic system ranges between 55 to 70% and saves millions of BTUs year after year.

Manor heat pipe heat exchangers as standard are suitable for air-to air heat recovery for a temperature range of – 10? to + 260?. With special materials of construction for the tube, the exchanger can be designed to extend the range to 427? to 482? 

Applications On Heat Pipe :

  • Waste Heat Recovery from Air Conditioners
  • Heat Pipe Air Preheater for Boilers
  • Waste Heat Boilers to Recovery Heat
  • Heat Recovery at the Kiln Furnace
  • Spray Drying

 

%d bloggers like this: