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%20%20%20%20Augmentation%20of%20Heat%20transfer%20for%20non-Newtonian%20fluid%20using%20screw%20Heat%20Exchanger
Research article
  

Augmentation of Heat transfer for non-Newtonian fluid using screw Heat Exchanger


Ramnaresh R. Prajapati, Pravin A. Mane

1,2 Department of Mechanical Engineering, W.C.E, Sangli - 416415, Maharashtra, India.


Corresponding author :

Ramnaresh R. Prajapati,
Email:

Received: June 1, 2015,   Accepted: August 31, 2015,   Published:


Abstract:

Heat exchangers have several industrial and engineering applications. The design procedure of heat exchangers is quite complicated, as it needs exact analysis of heat transfer rate and pressure drop estimations apart from issues such as long-term performance and the economic aspect of the equipment. Whenever inserts are used for the heat transfer enhancement, along with the increase in the heat transfer rate, the pressure drop also varies. This variation in pressure drop varies the pumping cost. Therefore any augmentation device should optimize between the benefits due to the increased heat transfer coefficient and the higher cost involved because of the increased frictional losses. Heat transfer augmentation techniques (passive, active or a combination of passive and active methods) are commonly used in areas such as process industries, heating and cooling in evaporators, thermal power plants, air-conditioning equipment, refrigerators, radiators for space vehicles, automobiles, etc. Passive techniques, where inserts are used in the flow passage to augment the heat transfer rate, are advantageous compared with active techniques, because the insert manufacturing process is simple and these techniques can be easily employed in an existing heat exchanger.


Keywords: Active Technique, Passive Technique, Compound Technique, Heat exchanger for non-Newtonian fluid


Citation:

Ramnaresh R. Prajapati, et al. Augmentation of Heat transfer for non-Newtonian fluid using screw Heat Exchanger. J. of Advancement in Engineering and Technology. V3I2. DOI: 10.15297/JAET.V3I2.09


Copyright:

© 2015 Ramnaresh R. Prajapati. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.


      
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      Journal of Advancement in Engineering and Technology