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 14 of 14 for “"COMBINED ENERGY"”.
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A Combined Energy–Exergy Approach for Improving Refrigeration Systems in Deep-Level Gold Mines: Method Development and Case Study Validation
… and rising electricity costs are driving energy efficiency initiatives on deep-level mines. One of the major energy consumers on deep-level mines is the refrigeration system, which supplies chilled water for cooling the underground working environment. Due to the outdated nature of these …
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Resources, Economics and Technology Feasibility of Hybrid Offshore Energy Farm
Offshore wind and wave energy represent vast untapped resources in the ocean, holding significant potential for making long-term contributions to future energy supplies and facilitating the ongoing energy transition. The integration of these ocean renewables has emerged as a compelling concept, …
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Simulation and Analysis of Energy Consumption for an Energy-Intensive Academic Research Building
… research facility. This thesis describes an energy analysis and simulation study that serves to identify energy saving opportunities and optimum operation of the building to achieve its goals of high energy efficiency and substantial CO2 emission reduction. A utility analysis, including a …
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Exploring the Possibility of Floating Orbits for Extreme Mass Ratio Binary Black Holes
… hole orbits the system's center of mass, loses energy by emission of gravitational waves. This causes both black holes to spiral in towards each other. However, if the binary were to, by some mechanism, gain orbital energy at the same rate that it radiates away this energy, a non-decaying or …
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Formulation of the particle size distribution effects on the rheology and hydraulics of highly-concentrated suspensions
… size distribution effects on the overall optimum energy efficiency during hydraulic transportation and particle size reduction. The computer model developed for this purpose was employed to evaluate the transportation energy consumption and the energy consumed in the grinding process to prepare …
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Pressure, leakage and energy management in water distribution systems
… in the magnitude and trends. A new method for combined energy and pressure management via integration and coordination of pump scheduling with pressure control aspects has been created. The method is based on formulating and solving an optimisation NLP problem and involves pressure dependent …
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Asymmetric Energy Harvesting and Hydraulically Interconnected Suspension: Modeling and Validations
… isolated shock absorbers that can only dissipate energy by themselves. Hydraulic interconnected suspension uses hydraulic circuits to connect each shock absorber, so that the energized hydraulic fluid can be utilized to counter unwanted body motion to improve the overall dynamic performance. The …
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Development of a multi-port DC-DC converter for a magnetically-coupled residential micro-grid
… undergo a fundamental change towards the clean energy sources. In the residential sector, one of the major electricity users, the demand for renewable energy sources is increasing significantly. This thesis presents an effort to develop a residential micro-grid, including multiple renewable …
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Development of an Integrated Process, Modeling and Simulation Platform for Performance-Based Design of Low-Energy and High IEQ Buildings
… design of green building systems with low energy consumption, high indoor environmental quality (IEQ), and high level of sustainability. The VDS is intended to assist collaborating architects, engineers and project management team members throughout from the early phases to the detailed …
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Time for mitigation: linking energy demand to wellbeing
… change will require significant reductions in energy demand. However, there are concerns that energy demand reductions involving lifestyle and behavioural changes might negatively impact peoples’ wellbeing. The work in this thesis studies the impacts of how people spend their time – commonly …
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Evaluating the Hydrologic and Thermal Performance of a Green Roof in Syracuse: Measurements and Modeling of a Full-Scale System
… have increased the risk of flooding and combined sewer overflows as well as other stormwater related problems. Given the high costs of traditional infrastructure rehabilitation, green infrastructure, which mimics natural systems, has become a popular solution. Green roofs are one …
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SURFACE WATER – GROUNDWATER INTERACTIONS IN A PROGLACIAL ALPINE CATCHMENT: Applications of Heat Tracing, Modeling, and Remote Sensing Methods
… interactions in such a setting, we have combined energy balance modeling of stream heat fluxes, thermal infrared remote sensing of stream temperatures, and groundwater flow modeling to a section of the Quilcayhuanca stream that is downstream of direct glacial melt inputs to examine the …
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ΣΥΜΒΟΛΗ ΣΤΗ ΜΕΛΕΤΗ ΟΡΘΟΛΟΓΙΣΜΟΥ ΣΥΣΤΗΜΑΤΟΣ ΠΑΡΑΓΩΓΗΣ ΗΛΕΚΤΡΙΚΗΣ ΕΝΕΡΓΕΙΑΣ ΑΠΟ ΣΥΝΔΥΑΣΜΕΝΗ ΧΡΗΣΗ ΗΠΙΩΝ ΚΑΙ ΚΛΑΣΣΙΚΩΝ ΠΗΓΩΝ
ΤΟ ΘΕΜΑ ΤΟΥ ΔΙΔΑΚΤΟΡΙΚΟΥ ΕΙΝΑΙ Η ΜΕΛΕΤΗ ΕΝΟΣ ΣΥΣΤΗΜΑΤΟΣ ΠΑΡΑΓΩΓΗΣ ΗΛΕΚΤΡΙΚΗΣ ΕΝΕΡΓΕΙΑΣ ΑΠΟ ΣΥΝΔΥΑΣΜΕΝΗ ΧΡΗΣΗ ΕΝΟΣ G/B ΥΠΟΣΥΣΤΗΜΑΤΟΣ, ΕΝΟΣ ΥΠΟΣΥΣΤΗΜΑΤΟΣ ΑΝΕΜΟΓΕΝΝΗΤΡΙΚΟΥ, ΕΝΟΣ ΥΠΟΣΥΣΤΗΜΑΤΟΣ ΣΥΣΣΩΡΕΥΤΩΝ ΚΑΙ ΕΝΟΣ ΑΡΙΘΜΟΥ ΜΟΝΑΔΩΝ DIESEL. ΣΤΗΝ ΑΡΧΗ ΓΙΝΕΤΑΙ Η ΕΞΟΜΟΙΩΣΗ ΤΟΥ ΒΑΣΕΙ ΤΩΝ ΧΑΡΑΚΤΗΡΙΣΤΙΚΩΝ ΤΩΝ …