Electrical design, simulation, and testing

We have designed, manufactured and tested a prototype that may be applied in thermal control of electronic devices. It was fabricated from a silicon substrate and a Pyrex cover, serving as both an insulator and a window through which flow patterns and boiling phenomena could be observed. A number of parallel triangular micro-channels were etched in the substrate. The heat transferred from the device was simulated by different types of electrical heaters that provided uniform and non-uniform heat fluxes, defined here respectively as constant and non-constant values... 

Immersion Corrosion—Accelerated Tests To simulate service of components that will be immersed in fluids, ASTM G 31 should be followed. This standard includes many precautions relating to how laboratory testing environments may differ from actual service. Issues such as immersion solution composition, temperature, aeration, velocity, and volume must be addressed thoroughly before the design of the test can be considered complete. For tests involving corrosion in water, two ASTM D 2688 and ASTM D 2776 should be referenced, which determine corrosivity by weight loss and electrical methods, respectively. 

The gas-turbine system operation and control test aim to demonstrate operability and control of the closed-cycle gas turbine system. The preliminary design for the test facility is an integrated scale-model of the GTHTR300 PCS. Pressurized helium gas at around 1 MPa is used as the working fluid and an electric heater simulates the reactor. The heat and mass balance of the test facility is shown in Fig. XVI-13. Planned test modes are normal operation, start-up, shutdown, load change, loss of load, and emergency shutdown. 

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