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The recycling of aluminum scraps and translation of useful product has concerned more and more thoughtfulness of researchers in order to reduce emission and waste disposal. The composite material is coming under the high-performance materials system and has several advantages over the conventional materials owing to its superior properties such as greater tensile, impact and fatigue properties. The aforementioned properties are considered for aerospace, automotive and ship construction industries. The present paper deals the manufacturing of aluminum composite metallic materials by using scrap aluminum and copper particulates via stir casting. The composite samples prepared with reinforcing ratio of the 2%, 4% and 6%. The mechanical properties such as hardness, tensile and impact properties are evaluated. It is found from the analysis, the increment in copper reinforcement rises the entire mechanical properties. [ABSTRACT FROM AUTHOR]

Preserving food, medicine, and air conditioning are all key functions of refrigerators in impoverished countries. The refrigerant Freon is used to chill the air in typical refrigeration systems. Refrigeration systems are closely connected to ozone layer deflection, hence a broad spectrum of research is going into alternate technologies. Vortex tube design and fabrication are the primary goals of this project. A broad variety of orifice sizes and intake pressures are used to test the Vortex tube after it is constructed. In order to measure performance, cooling and heating effects are employed as indicators. The following are a few of the project's primary goals: ➢ To calculate the best orifice diameter for maximum cooling and heating effects. ➢ The optimum cooling and heating effects may be achieved by exposing an appropriate intake pressure ➢ To ensure that the COP's selected BEST performance metrics are accurate ➢ To determine which kind of material is most appropriate for achieving the desired level of performance. [ABSTRACT FROM AUTHOR]