Sökning: "solar cooling"
Visar resultat 21 - 25 av 69 avhandlingar innehållade orden solar cooling.
21. Development of an Impinging Receiver for Solar Dish-Brayton Systems
Sammanfattning : A new receiver concept utilizing impinging jet cooling technology has been developed for a small scale solar dish-Brayton system. In a typical impinging receiver design, the jet nozzles are distributed evenly around the cylindrical absorber wall above the solar peak flux region for managing the temperature at an acceptable level. LÄS MER
22. Lifetime Performance Assessment of Thermal Systems : Studies on Building, Solar and Disctrict Heating Applications
Sammanfattning : The main questions today concerning thermal systems are their economical and environmental impacts. These entities are generally, at present, assessed on the basis of operation performances of newly installed/designed systems, during an assumed lifetime period. LÄS MER
23. Performance of Energy Efficient Windows and Solar Shading Devices
Sammanfattning : This Licentiate dissertation deals with windows and solar shading devices and how they could be designed and used to save energy for heating and cooling in buildings. Parametric studies using the dynamic energy simulation software ParaSol v 2.0 were performed for different windows and solar shading devices. LÄS MER
24. Novel and ancient technologies for heating and cooling buildings
Sammanfattning : The basic issue of this thesis concerns one of the fundamental problems of the future of our society: How to meet the energy requirements for a large and growing world population while preserving our environment? This question is important for the world and the answers are complex and interwoven.Conventional energy sources, fossil and fissile, are polluting in the present and in the future: they erode the environment and their resources are limited. LÄS MER
25. Dark Matter in the Solar System, Galaxy, and Beyond
Sammanfattning : There is evidence that dark matter constitutes a majority of the Universe's matter content. Yet, we are ignorant about its nature. Understanding dark matter requires new physics, possibly in the form of a new species of fundamental particles. LÄS MER