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    STUDIA CHEMIA - Issue no. 4 / 2013  
         
  Article:   INTENSIFICATION OF CONVECTIVE HEAT TRANSFER IN STRAIGHT PIPES BY USING SOME TURBULENCE PROMOTERS.

Authors:  ANDRA TĂMĂȘ. 		 
       
         
  Abstract:   In this paper was studied the influence of some turbulence promoters (annular or spiral baffles), placed in the inner tube of a double pipe heat exchanger, on heat transfer intensification. These studies were performed in order to enhance heat transfer by convection of the fluid that moves through these spaces, flowing in transient or turbulent regime. The quantitative determination of heat transfer intensification in the presence of turbulence promoters was performed by calculating, from the energy balance data, the total or partial heat transfer coefficients and comparing these values to the values calculated in the absence of promoters.

Keywords: baffles, heat exchanger, heat transfer, partial/total heat transfer coefficient, turbulence promoters
 
         
     
         
         
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