Informatics Publishing Limited

A. Ponshanmugakumar ¹, M. Sivashanmugam ¹, S. Stephen Jayakumar ²

Affiliations
1 AMET University,Chennai, IN
2 VOLTAS India Ltd, Chennai, IN

Abstract

This work is to investigate and validate of solar thermal storage system integrated with phase change material (PCM). The existing system is suggested to setup a Storage tank with phase change material (PCM), between the Solar concentrate dishes and Vapour absorption machine (VAM). The storage tank was used instead of an Electrical AC compressor, by which the renewable energy can be utilized to its full extent. Numerical Simulation is done and the Total Heat output, Temperature distribution along the bed, Pressure, charging time, discharging time, Mass flow rate are calculated. The storage system contains Erythritol as PCM in HDPE spherical capsule, having the storage capacity 345,121 KJ/hr (for the storage tank capacity) considering the latent heat and sensible heat of the Heat transfer fluid.

Keywords

Vapour Absorption Machine (VAM), Phase Change Materials (PCM), Erithritol, Storage Tank, Numerical Simulation.

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M. Sivashanmugam ¹, T. Kumar ²

Affiliations
1 Department of Mechanical & Production Engineering, Sathyabama University, Chennai, IN
2 Department School of Mechanical Engineering, SRM University, SRM Nagar, Chennai, IN

Abstract

Friction stir welding is a solid state joining process and is widely being considered for aluminium alloys. The main advantage of FSW is the material that is being welded undergoes only localized changes. The welding parameter and tool pin profile play a major role in deciding the weld quality. In this work an effort has been made to analyze microstructure of aluminium AA 7075-T6 alloy. Three different tool profiles (Taper Threaded and square) have been used to construct the joints in particular rotational speed. Tensile, Impact, micro hardness of mechanical properties of the joints have been evaluated and the formation of FSP zone has been analyzed microscopically. From the investigation it is found that the threaded cylindrical profile produces highly defined Strength in welds.

Keywords

AA7075-T6 Aluminium Alloy, Friction Stir Welding, Tool Pin Profile, FSP Zone, Tensile, Impact Evaluation.

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