Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 15 of 15 for “"Latent energy"”.
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Air-ground temperature exchange
… time scale, including snow cover duration, latent energy of ground freezing, daily sunlight, precipitation, and vegetation. </p><p>Continual records of surface air and near-surface ground temperatures from five sites in North Dakota show similar trends in seasonal air-ground temperature …
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Seeds of Passage
… works. Three primary concepts guide my work: 1) latent energy - the memory or accumulative consciousness of the object, 2) the Sieving Process - the selection of individual parts from the local cache of materials, and 3) the pervasiveness of the material. Influenced by objects found in my late …
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Transient-heat-transfer and stress analysis of a thermal-storage solar cooker module
… thermal-storage solar cooker utilizes the high-latent-heat lithium nitrate releases when transitioning from liquid to solid state.However,before this process can transpire the salt has to be completely melted and the energy needed for the melting process is provided by the sun.The purpose of the …
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An experimental study of evaporative cooling from liquid droplets impinging on a hot surface
… group describing the ratio of sensible to latent energy absorbed during liquid-vapor phase change. Using our classification scheme, we can predict a range of useful Jacob numbers to use in the cooling of electronic components. From these Jacob numbers, we can extract the material properties …
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Mass flow and temperature measurements in the flue of a woodburning appliance
… is used as the standard for measuring the energy efficiency of stoves. Unfortunately, this method is expensive and few wood stove manufacturers can afford it. For this reason, flue loss methods which are generally less expensive are attractive. Flue loss methods measure either directly or …
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Heat and Mass Transfer Characteristics of Desiccant Polymers
… humidity control and the potential to save energy costs by lowering the latent energy requirement of the supply air stream. The resulting increasing popularity of desiccant-enhanced air conditioning systems has sparked new interest in the search for a better, more efficient desiccant …
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Guidelines for the development of environmental teacher education in South Africa : a conceptual and contextual analysis
… is powerful. It is urgent that this largely latent energy be translated into action in South Africa, where, despite significant political progress, the experience of the total environment for the majority of South Africans, is one of severe compromise. Environmental education for teachers is, …
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Biologically-inspired high-performance envelope design in tropical climates
… this work hypothesizes that the abundant latent energy found in tropical climates can be used to power discernable thermal change in unconditioned spaces. Using environmental cues to trigger non-linear events, plants can change observable characteristics in response to even small changes …
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Masonry heater performance evaluation: efficiency, emissions, and thermal modeling
… uses carbon balances to calculate the chemical energy loss and the dry stack gas mass for calculation of sensible energy loss. The sensible loss that occurs during the off-period, when combustion of wood has stopped, is measured directly by injecting carbon dioxide in the stack and using it as a …
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Steady State Mathematical Modeling of Non-Conventional Loop Heat Pipes: A Parametric and a Design Approach
… phenomenon to passively transport waste thermal energy dissipated from the LEDs into ambient air. Unlike a conventional LHP, the pressure drop across the liquid-vapor interface in the evaporator wick is not very high. In the present work, two different mathematical models – a parametric model and …
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THE VARIABILITY OF DROUGHT DYNAMICS IN THE SOUTHWEST UNITED STATES AND AN ANALYSIS OF DROUGHT RISK IN THE NORTHEASTERN UNITED STATES
… longwave radiation. The surface may also lose energy through sensible heat loss and outgoing latent energy. This important balance is highly sensitive to soil moisture content. Because of the wet bias in the GCMs, future climate projections therefore underestimate the near-term-future heat wave …
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Equation-oriented modeling, simulation, and optimization of integrated and intensified process and energy systems
… reactors are introduced. The first concept is a latent energy storage-based temperature controller, where a phase change material is confined within the walls of an autothermal reactor to improve local temperature control. The second concept is a segmented catalyst layer which modulates the rate …
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Non-place and the acceptance of the scantiness of reality
… The present work aims to transform this latent energy into an urban form. -- [ strategy]: There are several ways of constructing a work. One is by making a system to make decisions, another is by making decisions at each step. This experiment unifies them in a thinking/ design process …
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Geraniaceae seed-inspired soft robots for environmental actuation and sensing
Energy is an integral part of our everyday life, being one of the most fundamental needs, including our physiological activity. In the last 50 years, energy related issues, including demand and accessibility, consumption, and consciousness of use, have become a topic of paramount importance. In an …