%0 Journal Article
%T The Experimental Study of Nanoparticles Effect on Thermal Efficiency of Double Pipe Heat Exchangers in Turbulent Flow
%J Challenges in Nano and Micro Scale Science and Technology
%I University of Sistan and Baluchestan,
Iranian Society Of Mechanical Engineers
%Z 2821-000X
%A Aghayeri, R.
%A Maddah, H.
%A Ashori, F.
%A Aghili, M.
%D 2014
%\ 07/04/2014
%V 2
%N 2
%P 140-148
%! The Experimental Study of Nanoparticles Effect on Thermal Efficiency of Double Pipe Heat Exchangers in Turbulent Flow
%K Nano particles
%K Double-pipe
%K Heat Exchanger
%K turbulent flow
%K Heat transfer coefficient
%R 10.7508/tpnms.2014.02.006
%X In this work, the characteristics of flow and heat transfer of a fluid containing nano particles of aluminum oxide with the water volume fraction (0.1-0.2-0.3)(V/V) percent of the reports. The overall heat transfer coefficient, heat transfer and the average heat transfer fluid containing nano water - aluminum oxide in a horizontal double pipe counter flow heat exchanger under turbulent flow conditions is studied. In the present study, aluminum oxide nanoparticles with a diameter of about 20 nm are used. The results show that the overall heat transfer coefficient and the overall heat transfer fluid based on nano-fluid heat transfer coefficient is slightly higher (up to about 5-12 percent).Nano-fluid heat transfer coefficient and average heat transfer increased with nano-fluid mass flow rate increases with increasing temperature and water nano-fluid, fluid temperature increases and Heated (Author) nano-fluid heat transfer coefficient is greatly influenced. The use of nano-fluid pressure may cause slight errors in the calculation.
%U https://chal.usb.ac.ir/article_1608_f84ad39465cf9e7a5241787c319b33bf.pdf