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Filtering by: Subject Direct energy conversion Remove constraint Subject: Direct energy conversion Non-Academic Affiliation Oregon State University. Graduate School Remove constraint Non-Academic Affiliation: Oregon State University. Graduate School

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  • Optimization of staged rankine energy conversion cycles for high efficiency

    Creator:
    Simmons, Larry Dean
    Abstract:
    Because of the fuel crisis and problems associated with thermal pollution there is new impetus and urgency for developing more efficient energy conversion systems for power generation. A preliminary analysis was undertaken to determine the potential of staged Rankine cycle systems for substantially higher efficiency. It was necessary to optimize...
    Resource Type:
    Dissertation
    Full Text:
    : Supercritical Cycles 15 H. Candidate: Direct Energy Conversion 15 I. Objectives 17 II. Staged Simple Cycles 23

  • Analysis of energy conversion systems, including material and global warming aspects

    Creator:
    Zhang, Mingyuan
    Abstract:
    With the rapid increase of the world energy demand and consumption, the method and techniques to analyze, improve and optimize energy conversion systems have to deal not only with direct fuel exergy (energy) consumption, but also with other resources, which have associated exergy consumptions, and with environmental impacts, such as...
    Resource Type:
    Dissertation
    Full Text:
    and optimize energy conversion systems have to deal not only with direct fuel exergy (energy

  • DC notch filter offset cancellation for direct-conversion receivers

    Creator:
    Pan, Dongling
    Abstract:
    Direct-conversion architecture would dominate the modern low power wireless receiver architecture if problems such as offset cancellation, even-order distortion, and flicker noise were solved. Among those problems, offset is the most serious one. This thesis will discuss and analyze one approach to cancel offsets in direct-conversion receivers. First, we explain...
    Resource Type:
    Masters Thesis
    Full Text:
    DC Notch Filter Offset Cancellation for Direct-Conversion

  • Efficient RF energy scavenging and ultra-low power management for powering wireless sensor nodes

    Creator:
    Arumugam, Vikrant P.
    Abstract:
    As the demand for real-time information in engineering and health care systems keeps increasing, the need for wireless sensor nodes is also continuously increasing. As a result, the cost and effort involved in installing and maintaining batteries to power the numerous sensor nodes is growing exponentially. Providing a cost effective...
    Resource Type:
    Masters Thesis
    Full Text:
    . Components in a RF Energy Scavenging System. . . . . . . . . . . . . . . . . . . 8 2.4. RF-to-DC Conversion

  • Analysis and optimal sizing of an energy storage system for wind farm applications

    Creator:
    Yen, Zuan Z.
    Abstract:
    Modern wind energy is the technology of choice with a short payback period for increasing renewable energy portfolios. Bonneville Power Administration (BPA), a United States power authority in the Pacific Northwest expects to increase their wind energy capacity from 2,000 megawatts to 6,000 megawatts within the next five years. Currently...
    Resource Type:
    Masters Thesis
    Full Text:
    : Analysis and Optimal Sizing of an Energy Storage System for Wind Farm Applications Abstract approved

  • Simplified WECC modeling for frequency response, wind integration, and energy storage

    Creator:
    Bhattacharji, Pranathi
    Abstract:
    The primary objective of a grid is to maintain a balance between generation and load. If these quantities are not in balance with each other, severe damages such as voltage fluctuations, low power quality, power outages or even cascaded blackouts may occur. Hence one of the primary factors that holds...
    Resource Type:
    Masters Thesis
    Full Text:
    Energy Storage Abstract approved: ______________________________________________________ Ted K

  • Development of biomimetic control strategies for the optimal use of renewable sources and energy storage systems

    Creator:
    Hapke, Hannes Max
    Abstract:
    In the year 2007, the worldwide energy consumption accumulated to a total of 16.5 billion MWh. While the resources of conventional energy production cause environmental damage, renewable energy sources like solar or wind power offer a solution to substitute for coal or nuclear generated power. Countries like Denmark and Spain...
    Resource Type:
    Masters Thesis
    Full Text:
    : Development of Biomimetic Control Strategies for the Optimal Use of Renewable Sources and Energy Storage

  • On the modeling and control of horizontal pendulum wave energy converters

    Creator:
    Boren, Blake C.
    Abstract:
    Presented is an investigation into the modeling, active control design, and simulation of a generic horizontal pendulum wave energy converter, known as a PWEC. A description is provided of the dominant attributes PWECs have, showcasing their promising potential as wave energy converters. Seeking to further promote this potential, an active...
    Resource Type:
    Masters Thesis
    Full Text:
    energy to electricity conversion occurs. The assertion, consequently, is the existence of an optimal

  • Methods for short-term prediction of wind speeds in the Pacific Northwest Columbia Gorge wind farm region

    Creator:
    Davidson, James D.
    Abstract:
    Variable electrical generation (VG) sources such as wind farms are an increasing percentage of total electrical generation in the Bonneville Power Administration (BPA) balancing area and are starting to impact the ability of the regional balancing authority to control the electric grid. Wind farms are not dispatchable and challenge historical...
    Resource Type:
    Masters Thesis
    Full Text:
    in the Energy Systems group who provided a collaborative and friendly environment for my studies

  • The wave energy resource of the US Pacific Northwest

    Creator:
    Lenee-Bluhm, Pukha
    Abstract:
    The substantial wave energy resource of the US Pacific Northwest (i.e. off the coasts of Washington, Oregon and N. California) is assessed and characterized. Archived spectral records from ten wave measurement buoys, operated and maintained by the National Data Buoy Center and the Coastal Data Information Program, form the basis...
    Resource Type:
    Masters Thesis
    Full Text:
    much, if not all, of this. Wind and solar energy conversion technologies have matured over recent