Programmable Device Circuits and Systems

S. Rajkumar ¹, M. Chandrasekar ²

Affiliations
1 AVC College of Engg., Mayiladuthurai, IN
2 Anna University of Technology, Trichy, IN

Abstract

Capillary pumped loop (CPL)is a versatile two phase heat transfer device which has recently gained increasing acceptance in space thermal control and electronic component cooling in modern electronics

Using no moving parts the prototype units were designed, fabricated and successfully tested with excellent results.

In this project work experimental analysis on hydrodynamic and thermodynamic theory of CPL has calculated and the results presented in this project have been validated by tests performed on a experimental version of the CPL.

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S. Rajkumar ¹, S. Kamatchi Sankaran ¹, M. Dhandayuthabani ¹

Affiliations
1 Sudharsan Engineering College, Pudukkottai, TN, IN

Abstract

Improving the efficiency of the thermal power plant by introducing a newer technology Dropwise condensation (DW C) with Nano fluids as coolant in condensation unit. Drop wise condensation (DWC) is under development as it offers extremely high heat transfer (4-8 times higher) by preventing the build up of the condensate liquid layer formed in the film wise condensation (FWC). This project work is an experimental based and objective is to break the condensate formed on the cold surface so as to improve the heat transfer rate. Hence an analysis has been done over circular, and bundle of tubes. In this present project work vapour deposition method is used for coating the copper tubes by POLY TETRA FLUORO ETHYLENE (TEFLON) is used to promote the drop wise condensation. Instead of cooling water Nano fluids are used to improve the heat transfer rate. The characteristics of drop wise condensation on circular, and bundle of tubes are experimentally studied and their results are compared. Correlations have been derived.

Keywords

Dropwise Condensation, Teflon Coating, Nano Fluid.

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