Nanotechnology Applications for Solar Energy Systems

13 Multiphase Modeling of Powder Flow in an Ejector of Solar-driven Refrigeration System by Eulerian-Lagrangian Approach

Mohit Biglarian¹, Ahmadreza Najafi², Morsal Momeni Larimi^3,*, and Masih Parhizkari⁴

¹ Department of Mechanical Engineering, Sharif University of Technology, Tehran, Iran² Department of Wind Engineering, Flensburg University of Applied Sciences, Flensburg, Germany³ Department of Mechanical Engineering, Babol Noshirvani University of Technology, Babol, Iran⁴ Department of Mechanical Engineering, University of Zanjan, Zanjan, Iran^* Corresponding author

13.1 Introduction

Nowadays, electricity is the main power source of the driving refrigeration systems in industrialized countries, however, the supply of this type of energy is not available in most parts of the world. Solar energy can be considered as an alternative source which is available in many parts of the world. In recent decades, many studies focused on a combination of solar energy with adsorption, desiccant, and other processes and advances in technologies in solar-refrigeration systems.

To enhance the heat transfer in solar-refrigeration systems and different devices, varieties of methods have been developed, which generally have been characterized into two main groups; active methods and passive methods [1, 2]. The main drawback of single-phase fluid is its low thermal conductivity. In recent years, nanofluids are the main zone of research to be used instead of single-phase fluids, due to the high ...