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The present book contains seven chapters, in which different thermal cases have been studied experimentally or theoretically. In Chapter one the differential quadrature method as a precised numerical method was utilized to solve the transient equations of an FGM disc under thermal shock condition. Chapter two presents a new application of image processing as a tool to study prominent heat conduction mechanism of nanofluids focusing on micro-clustering. In chapter three, the temperature and viscosity-dependent methods were used to evaluate the clustering role versus Brownian motion effect in nanofluids. In chapter four, a standard pilot of parabolic trough collector (PTC) was designed and constructed; then nanofluid was used as working fluid to study the performance enhancement. Three types of coatings, used for the absorber tube of a PTC, were compared in aspects of optical absorptance and thermal conductivity in chapter five. In chapter six and seven, a comparative study of the first and second law of thermodynamics was performed to determine the possibility of using HFO1234yf, an environmentally friendly refrigerant, as a drop-in replacement of HFC134a in air conditioning system.
About the author
Samaneh Daviran received M.Sc. degree in Renewable Energies engineering / Mechanical engineering from the University of Tehran in 2014. She now cooperates with SMTEAM Co., Switzerland, in practical and research projects. Her research interests include Solar Thermal Systems, Experimental and Numerical Heat Transfer, Refrigeration, and Nanofluid.
