The challenge for Automobile is present emission norms that demands engine for green environment with high performance and low emission. The Low Heat Rejection Engine (LHR Engine) is a technology, which minimizes heat loss to the coolant by providing heat resistance in the heat flow to the coolant. As LHR Engine is used, the heat is not transferred to the surroundings. Another method to improve...

Activation calculations have been performed for the LIBRA reactor. Replacing HT-9 by low activation modified HT-9 increases the activity by a factor of 2.5 at shutdown while the long term activity drops by a factor of 25. The reflector is classified as Class C low level waste when modified HT-9 is used. Using HT-9 will require deep geological burial for the LIBRA radwaste. The activity produced...

A design has been developed for a rotary fluid coupling to transfer coolant fluids (primarily anhydrous ammonia) across rotating joints of the Space Station. Development testing using three conceptual designs yielded data which were used to establish the design of a multipass fluid coupling capable of handling three fluid circuits. In addition, a mechanism to support the fluid coupling and allo...

Batteries of electric vehicles require appropriate cooling to allow for increased performances such as high energy density and fast charging capabilities. Immersion the cells in a dielectric fluid provides substantial benefits terms safety performance, but selection relevant coolant remains complex task guidance engineers field vehicle electrification is sparce. This paper reviews properties wh...

The novelty-designed adaptive heat exchanger (AHE) for dissipation from the hydraulic system to ambient air has been experimentally investigated. heated oil circulated in rubber pipes as working fluid. flow AHE mounted circuit was compared with condition without AHE. In addition, contact surfaces of were coated a copper-based thermal conductive paste transfer enhancement research. installation ...

Quality control is an important aspect of manufacturing processes. Product quality of injection molded parts is influenced by the injection molding process. In this study statistical tools were used to develop a model that relates injection molding process variables to part quality. A statistically based model predictive control algorithm was developed for controlling part quality with manipula...

1) Hydraulic Analysis of the Emergency Core Spray System in a BWR The emergency spray system of a BWR delivers cold water to the core after a large-break loss of coolant accident has emptied the reactor vessel. The system comprises a large water pool, a pump, a spray nozzle and connecting pipes (Figure 1). All pipes are smooth round tubes made of stainless steel with 10 cm internal diameter. Th...

tip leakage loss introduces major part of losses of the rotor in axial gas turbines. therefore, the rotor blade tip has a considerable effect on rotor efficiency. to understand the flow physics of the rotor tip leakage, we solve the flow field for different tip platforms (passive flow control) and by considering coolant tip injection (active flow control). various blade tip configurations such ...

This paper presents the theoretical methodology, conceptual demonstration, and validation of a fully automated computer program for the inverse design and optimization of internal convectively cooled three-dimensional axial gas turbine blades. A parametric computer model of the three-dimensional internal cooling network was developed, including the automatic generation of computational grids. A...

Abstract The proficiency of hybrid nanofluid from Cu-Al 2 O 3 /water formation as the heat transfer coolant is numerically analyzed using powerful and user-friendly interface bvp4c in Matlab software. For that purpose, flow between two parallel plates examined where lower plate can be deformed while upper moves towards/away plate. Other considerable factors are wall mass suction/injection magne...