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The milling technique is one of the widely used processes in the industry. Rapid failures of tool, poor surface quality, large cutting force etc. are the major issues with the use of conventional milling tool. To overcome this coatings of hard material of nanometers in thickness on cutting tool improves its hardness and mechanical strength. Coating on cutting tools can be done by chemical vapor deposition (CVD) and Physical vapour deposition (PVD). In this study PVD technique is used for depositing thin film on stainless steel milling tool as by this method cutting edge strength is maintained and produce smooth surface of the coating. The aim of this study is to investigate machining performance of titanium nitride (TiN) coated tool during milling of aluminium. The DC power of titanium was considered as 250 and 300 W. The phase identification of coatings developed was done by using X-ray powder diffraction (XRD). The end milling operations under dry conditions is carried out using uncoated and uncoated mill bit at different spindle speeds to investigate the machining performance on cutting forces and surface finish. It is observed that TiN coating had a better machining performance in comparison with conventional tool. Coating minimizes the cutting force nearly by 30% and reduced the surface roughness.

Nowadays due to advancement in nanotechnology, it is possible to prepare nanoparticles, which is very much useful to enhance the thermal properties of heat transfer fluids. A Nanofluid is advanced heat transfer fluid with dispersed nanoparticles in base fluid. This paper is about the experimental study carried out to study the effectiveness of conventional single slope solar still plant (CSP) integrated with parabolic trough collector (PTC) using Nanofluid. Experiments were carried for water and Al2O3/Water nanofluid with 0.05% and 0.1% volume fraction as a working fluid in the integrated system. The results show that pure water yield is remarkably increase using the integrated still plant. It is observed that maximum yield is found 1741 ml with 0.1% volume fraction Al2O3/Water nanofluid as working fluid for 2.5 cm saline water depth in 1 m2 basin. This shows approximately 66% and 70% rise in the yield and thermal efficiency respectively using Al2O3/Water nanofluid integrated solar still system than CSP.

Zirconia (Zirconium oxide) thin films were deposited on silicon and corning glass substrates by physical vapor deposition technique. In this experiment the influence of substrate temperature was investigated. The structural and Wettability properties characterized by X-ray diffraction (XRD), Atomic force microscopy and contact angle measurement system. The zirconia films crystallized in the monoclinic phases with (111) orientation, for different sputtering parameters. Average grain size found to be in range of 10–19 nm for different temperature. Surface roughness increases with change in substrate temperature. The surface energy and contact angle measured by contact angle measuring system, exhibited hydrophobic behaviour of zirconium oxide thin films.

Today's demand is an optimized system to minimum fuel consumption, higher powered engine in compact size. Current performance radiator has become a restricting the development of the cooling system. Therefore, a better design and manufacturing performance, smaller radiator, internal combustion engines to meet the needs of functioning in various operating conditions, will certainly be the future trend. In this paper heat transfer rate is studied for radiator with coolant mass flow rate 4.00 LPM to 9.00 LPM. The numerical study on Ansys workbench platform is carried out to evaluate heat transfer through the radiator for water based CuO nano fluid. As the volume fraction of CuO increases heat transfer performance was improved but it is observed the pumping power is also increased. Using design of experiment method optimum length is found to improve the heat transfer performance without affecting pumping power.