Car bumpers can deform to absorb impact energy. For static and modal analysis, a Benz vehicle bumper was used. These analyses used a variety of bumper materials, including glass-mat thermoplastic, aluminium alloy, and mild steel with chromium plating (GMT). The majority of modern cars have bumpers composed of PC/ABS, a material blend of polycarbonate (PC) and Acrylonitrile butadiene styrene (ABS). PETG, ABS, and TPU. The deformation and strains grow as the car's speed rises from 55 km/hr to 90 km/hr, according to the static study. At a car speed of 75 km/h, the deformation and stress in the automobile bumper were at their highest. It was found through the static analysis that the stress values for PP material were lower.

An apparatus that moves heat from one fluid to another is a heat exchanger. To avoid mixing, the fluids may be separated by a solid wall, or they may be in direct touchHairpin Exchangers are available in bare tubes, finned tubes, U-tubes, straight tubes (with rod-thru capability), fixed tube sheets, and detachable bundles. They also come in single tubes (Double Pipe) and numerous tubes within a hairpin shell (Multitude). The combination characteristics of nano fluid and base fluid water are calculated in this article. Magnesium Oxide and silver nano particle volume fractions of 0.35, 0.45, 0.55, and 0.65 percent at varied velocities (0.5, 1,1.5, and 2 m/s) were used as nano fluids. The properties of nanofluids are calculated theoretically, and the results are used as inputs for analysisA 3D model of the hair pin heat exchanger with and without twisted tape is made using CREO parametric software. CFD analysis of the hair pin heat exchanger is performed at different nanofluid volume fractions. The pressure drop, Reynolds number, heat transfer coefficient, and Nusselt number are all determined using CFD analysis.

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