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 19 of 19 for “"Thermal heat"”.
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Solar desiccant evaporative cooling with multivalent use of solar thermal heat
… air-conditioning of buildings driven with solar-thermal heat. The principal acceptance of solar airconditioning has led to system prototypes mainly across Europe, however the diffusion of this innovative technology is proceeding slowly due to little field testing experience. In climates with …
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Experimental evaluation of the effect of thermal heat and pressure pre-treatment on primary sludge anaerobic digestion
… et al., 1998). More recently development of the thermal hydrolysis process pre-treatment of sewage sludge has shown great economic and financial potential in terms of; an increased sludge degradability implying more biogas production, improved digestion rate, stable and highly efficient digester, …
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Development of a hybrid solar photovoltaic and heat pump system for domestic heating and electricity generation
This research investigates a hybrid photovoltaic thermal heat pump system that uses an indirect expansion method. It combines multiple solar photovoltaic thermal panels that convert solar energy to heat and electricity with a water-to-water heat pump. This allows for the generation of heat and …
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Industrial heat stress : Using ice slurry ingestion as a practical approach to reducing heat strain in workers
… hot and humid conditions where uncompensable heat loads are experienced; an inability to dissipate stored heat increases the risk of developing a heat illness. In order to minimise the incidence of heat illnesses, several heat stress reduction interventions have been developed which aim to …
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The Door of Return Museum of Senegal
… methodology mitigates natural systems such as thermal heat transfer, daylight control, natural ventilation and thermal lag prior to incorporating mechanical systems. The paramount result is a contemporary museum that educates via its collection and economized performance systems.
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Experimental investigations of using silica aerogel to harvest unconcetrated sunlight in a solar thermal receiver
Significant demand exists for solar thermal heat in the mid-temperature ranges (120 oC – 220 oC). Generating heat in this range requires expensive optics or vacuum systems in order to utilize the diluted solar energy flux reaching the earth’s surface. Current flat plate solar collectors have …
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Modelling building heating requirements.
… model for the assessment of building heating requirements. The model has been incorporated into a FORTRAN computer program, ENMAN, which allows the rapid production of tabular and graphical comparisons between actual monthly fuel consumption and calculated requirements. The program was …
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A 10 kilowatt-thermal input multiple effect distillation pilot for concentrated solar power and desalination of seawater plant
The use of modular parallel plate falling film heat exchangers, optimization of thermal vapor compressor (TVC) entrainment ratio, and overall process thermal management increase the flexibility and overall efficiency of Multiple Effect Distillation (MED). A generic computational MED system model …
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Mechanical design of optics bench for UV-LED based liquid chromatography detector
… material which minimizes vibration sensitivity, thermal gradient, distortion due to impact loading, and cost was selected. The optimal wall thickness of the optics bench was determined by analyzing the results of drop test and vibration analysis. Features to isolate the optics bench assembly from …
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Application of an empirically-derived polytropic index for the solar wind to a solar wind shock propagation model
… wind computer model to simulate the effects of thermal heat conduction has been investigated. The current project involves the insertion of this empirically-derived polytropic index into a magnetohydrodynamic model of solar wind propagation. This computer model is used to predict the time for …
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Voltage gated calcium channels – molecular targets for trigeminal neuralgia
… Both female and male CION mice developed facial thermal heat hyperalgesia. Treatment with the pan T-type blocker Z944 was able to produce an antihyperalgesic effect in CION mice, however its effect was absent in CaV3.2-/- mice. This suggests that Z944 targets CaV3.2 channels in the CION model. …
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Multidisciplinary design of thermally radiating structures using a level set based topology optimization approach
The need for efficient thermally radiating structures for aerospace applications is apparent in many system designs including satellites, launch vehicles and hypersonic aircraft. While multidisciplinary structural optimization methods have been employed to design these systems, few have …
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Synthesis of integrated solar thermal networks for domestic and industrial utilization
… and optimization methods for integrating solar thermal with domestic and industrial heat networks over multiple time frames based on discrete time intervals/periods. The study also presents a new simultaneous multi-period modelling and design framework for increasing thermal output of an …
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Microactuators and their application in micro-opto-electro-mechanical systems (MOEMS)
… to be investigated. Scratch drive actuators, thermal actuators, and comb drive actuators have separately been characterized, improved, and modified in this thesis. Asymmetric thermal actuators are current driven actuators that can generate relatively high force and can be operated …
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Application of statistical analysis techniques to solar and stellar phenomena
… One way of revealing the nature of the coronal heating mechanism is by comparing simple theoretical one dimensional hydrostatic loop models with observations of the temperature and/or density structure along these features. The most wellknown method for dealing with comparisons like that is the …
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Heat management strategies in elite rugby sevens
… of this thesis was to develop and implement heat management strategies for international elite men’s and women’s rugby sevens teams competing in hot and humid conditions. The first three of six experimental chapters aimed to characterise the physiological, perceptual, and performance …
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Phenotypic and Genotypic characterisation of Bacillus sporothermodurans
Ultra high temperature (UHT) method is a thermal heat treatment of milk that is able to destroy non- sporeformers and sporeformers. The UHT process uses a temperature of 135-140°C for 1-2 seconds. Bacillus sporothermodurans is the only known species whose spores are able to survive the UHT …
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Understanding Thermal Conditions, Thermal Comfort and Adaptive Behaviours in Naturally Ventilated Multi-patient Wards in Connaught Hospital, Freetown, Sierra Leone
… by a better understanding of the links between thermal conditions, thermal comfort, and occupant adaptive behaviours? Natural ventilation remains the primary environmental mechanism for cooling and airborne infection control in hospitals among the poorest countries with the weakest public health …
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The Next Generation Router System Cooling Design
… systems which dissipate large amounts of heat while cooling technology for these electronic systems has remained relatively unchanged. This report illustrates the development and testing of a hybrid liquid-air cooling system prototype implemented on Cisco’s 7609s router. Water was the …