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  • Design and performance of a small scale waste heat recovery unit

    Creator:
    Ward, Christopher
    Abstract:
    A microchannel heat exchanger was designed for diesel waste heat recovery and its performance was evaluated. The 21x15x8 cm unit was constructed from diffusion brazed stainless steel lamina and weighed 11 kg. Operating from a 13.4 kW generator with an exhaust temperature of 500 °C the unit delivered 11.1 kW...
    Resource Type:
    Masters Thesis
    Full Text:
    Title: Design and Performance of a Small Scale Waste Heat Recovery Unit Abstract approved

  • The geometric characterization and thermal performance of a microchannel heat exchanger for diesel engine waste heat recovery

    Creator:
    Yih, James S.
    Abstract:
    Rising energy demands and the continual push to find more energy efficient technologies have been the impetus for the investigation of waste heat recovery techniques. Diesel engine exhaust heat utilization has the potential to significantly reduce the consumption of fossil fuels and reduce the release of greenhouse gases, because diesel...
    Resource Type:
    Masters Thesis
    Full Text:
    -compression cycle. A critical component in this system, and in any waste heat recovery system, is the heat

  • Development of a small scale scroll expander

    Creator:
    Harada, Kevin J.
    Abstract:
    The organic Rankine cycle (ORC) is a versatile approach in the utilization of waste heat in the production of electricity, clean drinking water, and cooling. The efficiency of these cycles must be maximized to make them economical. Parameters for the optimization of ORCs such as evaporator and condenser temperature have...
    Resource Type:
    Masters Thesis
    Full Text:
    and medium quality heat sources. Recovery at these low temperatures will result in a low thermal

  • Load bearing capacity of alder, spruce and hemlock tail trees

    Creator:
    Pugh, Edwin V.
    Abstract:
    This paper presents an evaluation of the cable loading support capacity of red alder, Alnus rubra Bong., Sitka spruce, Picea sitchensis (Bong.) Carr, and western hemlock, Tsuga heterophylla (Raf.) Sarg., tail trees. Capacity is measured in terms of combined stress resulting from compression and bending, rather than the traditional methods...
    Resource Type:
    Capstone Project

  • The quantitative evaluation of radiological workplace indicators

    Creator:
    Brock, Terry A.
    Abstract:
    Two research studies at the U.S. Department of Energy's Hanford Site and Rocky Flats Environmental Technology Site (RFETS) explore the quantitative relationship between surface contamination, airborne radioactivity, worker intakes, and subsequent dose. In the first study, resuspension factors are developed and evaluated at the U.S. Department of Energy's (U.S. DOE)...
    Resource Type:
    Dissertation
    Full Text:
    spent in other environmental health and safety areas (i.e., worker training, ventilation systems, heat