title  logo

Efficient Heat Transfer Solution

 

Thermally-stable Ionic Liquid Carriers for Nanoparticle-based Advanced Heat Transfer in Concentrating Solar Energy Applications

 

Heat transfer fluids are commonly used in industry and in solar energy collections as a means to exchange energy from one source (solar energy) to another either to dissipate the energy or convert the energy into power (steam turbine). The properties of the thermal fluid greatly affect the overall efficiency of the system, thus there is always a driving force to design a thermal fluid with better physical properties. High temperature stability and high heat storage capability are the critical factors for those heat transfer liquids. Currently used heat storage medium liquid has the low decomposition temperature and high melting point which results in high operating cost. To meet the above requirements Ionic Liquids (IL) may be the replacement of the heat storage medium of the solar collector.

The present study proposes to enhance the heat transfer and solar thermal energy collection by dispersing small volume percentages of nanoparticles into the ionic liquid carriers, creating Nanoparticle Enhanced Ionic Liquids (referred to as NEILs). This project is a collaborative work with Savannah River National Laboratory and University of Notre Dame. The objective of our task is to determine heat transfer coefficients of NEIL under both forced and natural convection conditions.

 

The present study proposes to enhance the heat transfer and solar thermal energy collection by dispersing small volume percentages of nanoparticles into the ionic liquid carriers, creating Nanoparticle Enhanced Ionic Liquids (referred to as NEILs). This project is a collaborative work with Savannah River National Laboratory and University of Notre Dame. The objective of our task is to determine heat transfer coefficients of NEIL under both forced and natural convection conditions.

 

Natural Convection Study: Natural convection study is performed in rectangular enclosure test sections which are made with clear polycarbonate Lexan sheet. Two ends of the enclosure are made with conductive copper sheets which are made to perform as hot and cold surfaces. Figure1 shows the complete experimental setup of natural convection study.

 

paul

for more information : paultc@email.sc.edu

Related Publications:

  1. Titan C. Paul, AKM M. Morshed, Elise B. Fox, Ann Visser, Nicholas Bridges, Jamil A. Khan, “Experimental Investigation of Natural Convection Heat Transfer of an Ionic Liquid in a Rectangular Enclosure Heated from Below”, IMECE2011 November 11-17, 2011, Denver, Colorado, USA.

Funded by : DOE