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Abstract In a manufacturing company, it is important to improve the cycle time and achieve the projected lead time. Delivering the goods on time and in good quantity is important factors to satisfy the customer. To stay inside the competitive market consumer orders is vital. So customer pleasure is considered as one of the many objectives of a company. In this paper filter drier has been taken into account and its cycle time is studied. Current state Value stream mapping (CSVSM) for existing methodology has been plotted and the bottleneck of the process was found during the cap assembly. Based on customer demand, Takt time and production time is plotted. The cup assembly process takes more time than the Takt time. The problem for time taken was analyzed with lean tools and Cause and effect diagram. A new fixture design was created to reduce the cycle time of the cup assembly. Future state value stream mapping (FSVSM) was plotted. The production of filter drier has been increased from 818.3 numbers to 1285 numbers and the bottleneck process time has been reduced from 33 s to 21 s.

Abstract STHX have assumed importance over the years due to its great versatility. Thermal and hydraulic characteristics dictate the performance of the heat exchanger. These factors are dependent on the inlet conditions, flow conditions, tube and shell geometry. Present paper presents a theoretical approach involved in calculating the thermohydraulic performance of a STHX using two methods- Colburn and Bell Delaware. Temperature of water on the hot side was varied- 50 °C, 70 °C and 90 °C and the cold fluid has been set to 30 °C. Plots of performance parameters such as heat load, shell side heat transfer coefficient, and effectiveness by both approaches have been discussed. From the results it can be concluded that the Bell Delaware is more reliable for calculation in practical scenarios as the losses that may occur are taken into consideration.

Abstract As the rising concern of waste management around the world, landfills are stacking up the waste due to a shortage of land. Researchers are finding different ways to convert this waste heat to produce useful energy. Effective treatments of these waste results in the utilization of products generated by the system. Many limitations of the Organic Rankine Cycle (ORC) and anaerobic digestion are yet to be solved. Anaerobic digestion is the biological system which helps in degradation of organic waste into useful products. The product generated is burnt to heat organic working fluid present in Organic Rankine Cycle (ORC) by supplying heated medium through the evaporator. Although pre-treatment is required for food waste. The paper reviews the combined heat and power (CHP) systems between biomass and regenerative Organic Rankine Cycle (ORC), which affects requirement and efficiency of system using dry fluid as the medium of Organic Rankine Cycle (ORC). In this reviewed paper, the steady-state conditions are kept into consideration to observe the factors affecting the efficiency of the system done by various authors to get a better performing system.

Abstract A heat pipe is a two-phase device with a very high effective thermal conductivity and heat transfer rate. It consists of a phase change material, wick structure and an envelope. Usually, the heat pipes are circular in shape. In this paper, we analyze different shapes of the heat pipe and how it affects the performance of the pipe without changing its internal volume and central thickness. Flow property of the phase change material changes with geometry. The fluid velocity is minimum at the pipe surface and maximum at the pipe centre because of the no-slip condition. We have selected one circular and two flat geometries with a different number of edges. The advantage of flat geometry is an increased surface area of contact. ANSYS simulation software is used to simulate the working of the heat pipe. Several performance parameters including pressure, velocity, temperature and effective thermal conductivity were calculated and compared. The effect of an increase in the number of edges on different performance aspects of the heat pipe is studied. From the results of simulation software, it is observed that the change in geometry affects the thermal properties significantly.

Abstract The globe is presently perusing technologies that entirely automate the processes with negligible losses. To achieve this, the world has initiated their automation from private bodies like home, school, etc. Thus, our paper is created to aid their process. This paper describes the solid-state switching using wireless networks. The proposed paper deals with the replacement of solid-state device instead of application of relays in home automation, as the performance of relays are not very effective in switching at higher inrush currents and they require an adequate environment for its better performance. Solid state devices have advantages like less power consumption, better life span, easy control, etc. Thus, the use of solid-state devices improves the performance of the entire home automation system. This proposed paper uses a protocol DALI (Digitally Addressable Lighting Interface) which controls switching of light resistive loads and improves communication. The soft switching operation of the circuit operates with the wireless network and improves the ability of carrying loads and has a strong controlling ability. The design and circuit framework can be adapted to any of the switch-controlled circuits which is relayed on solid state device.

There is a pressing need to accelerate the development of advanced technologies to prevent Coronavirus in large gatherings. The present system is an integration of tunnel disinfectant spray system and solar setup which utilises the solar energy to power a pump which pushes the required amount of chemical mixture into the nozzles of the spray system in order to eliminate any incoming virus or bacteria on the clothes of a particular person without wetting it. Data was gathered for a mall in New Delhi related to occupancy levels before and after lockdown. A 47% and 35% spike in energy and disinfectant mixture to pump was evaluated on weekends. A 70% reduction in operating cost was registered for solar based system in comparison to non-solar setup. Optimum conditions by considering efficiency and cost effectiveness evaluated are 8 number of nozzles, nozzle angle 55 degrees spray pressure 200 bar, and pressure 200 bar.

Abstract Aluminium is easily available low cost material but the emissivity of the aluminium is very low which is minimum 0.02 to maximum 0.54 for the pure level with different form like polished, highly polished, oxidized, un-oxidized and anodized conditions and different formations. So in this investigation focused to increase the emissivity of the Aluminium surface. There are number of methods and materials were available to reach the motive of this requirement among them coating method and 75Ni-25Cr alloy material considered for this experimental investigation. Square plates were considered and the corresponding temperatures measured with the help of thermocouples located on the particular point of the surface. The commonly used normal black body used as a reference surface for this investigation. There are increased radiant heat input create impact on the values surface which leads to identify the purpose of this material coating.

Abstract Today, investigating the impact phenomenon is of particular importance in different fields. The axial crashing test is considered as one of the most common test with the application in a variety of industries such as the aerospace, shipbuilding, automotive, rail and elevator industries. In this study, the behavior of thin-walled energy absorbers with different circular and square cross-sections has been examined under low-speed impact test. Then, by creating surface defects to reduce the overall weight of the structure as well as reducing the initial peak load, the tests have been continued. It is worth noting that all specimens are made of 1100 series aluminum. The results showed that the highest absorbed energy and highest crashing force efficiency was attributed to the circular beam and simple square beam, respectively.