In the present work the effect of Cu-Water nanofluid, as heat transfer fluid, on the performance of a parabolic solar collector was studied numerically. The temperature field, thermal efficiency, mean-outlet temperatures have been evaluated and compared for the conventional parabolic collectors and nanofluid based collectors. Further, the effect of various parameters such as fluid velocity, vol...

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Recommended Citation Sawvel, Russell. "Evaluation of shaker dust collector for use in a swine farrowing barn. ii To my beloved late Mother. iii ACKNOWLEDGMENTS I would like to thank my father Earl Sawvel and Sue Nordstrom for their support, guidance, and encouragement throughout this endeavor. I would also like to thank Tom Peters for being a world class advisor and Renée Anthony for being a wo...

We present the experimental observation of the effect of an aftercavity interaction (ACI) in a depressed collector gyrotron oscillator. The gyrotron generates an output power of 1.5 MW at 110 GHz in 3 microsecond pulses with a 96 kV and 40 A electron beam and has a single-stage depressed collector. The ACI arises from cyclotron resonant interaction between the microwave beam traveling out from ...

The paper presents preliminary results of an experimental study on solar water heater with full width and 75% twisted tapes as heat transfer enhancement device. The study shows that the thermal efficiency due the use of the twisted tape increases by 4.5-8%; higher for the 75% twisted tape. Keyword Solar water heater (collector), tube-in-fin, twisted tape, thermal efficiency, performance enhance...

Two types of direct energy converters, cusp direct energy converter (CUSPDEC) and traveling wave (TW) DEC, used to produce electricity from thermal ions and fusion products in an advanced fueled fusion, are investigated using small-scale devices. In CUSPDEC, magnetized electrons are deflected along the field lines of the cusp magnetic field to the line cusp region and collected by an electron c...

Lithium metal is one of the most attractive anode materials for electrochemical energy storage. However, the growth of Li dendrites during electrochemical deposition, which leads to a low Coulombic efficiency and safety concerns, has long hindered the application of rechargeable Li-metal batteries. Here we show that a 3D current collector with a submicron skeleton and high electroactive surface...