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Long term evaluation of an asymmetric CPC PV-thermal hybrid built for high latitudes, MaReCo (MaximumReflectorCollector), is performed in Lund, lat 55.7o, and this paper discusses output estimates and characteristics of the system. The output estimates are calculated using the MINSUN simulation program. To get the input for MINSUN, measurements were performed on two MaReCo prototypes. These measur
To meet EU energy and climate targets, energy efficiency of the existing building stock must be drasticallyimproved. Within IEA ECB Annex 56 one of the best practice energy renovations is a group of multi-familybuildings in Sweden, recently thoroughly renovated. Residents' perception of renovations and appraisal ofimplemented measures were captured by interviews with tenants and a literature revie
Alkaline membrane fuel cells can operate using nonprecious metals as catalysts, but rely on polymeric membranes with high hydroxide conductivity and alkali-resistance, which are hard to find. A new membrane is now reported comprising ferrocenium cations in magnetically aligned domains with an excellent combination of these properties.
Environmental impact and security of supply has fuelled a shift in the power mix of power systems today. Traditionally used fossil fuel gives more and more space to the development of renewables in an effort to comply with strict international standards regarding CO2 emissions and secure energy supply. Wide geographical spread of renewable resources indicates that HVDC technology is most suitable
The continuous increase in global energy consumption has led to a greater focus on the energy required for heating buildings. This thesis presents a techno-economic model for analysing low-temperature district heating networks coupled with a geothermal heat source. The model was used to analyse an existing system in Denmark with 15 connected single-family detached houses. Each of the houses has a
As requirements regarding energy efficiency are getting tougher, buildings in the arctic, as well as the rest of the world, need to be more energy efficient without compromising a good indoor climate. This paper presents measured moisture supply and occupancy level in a Swedish Arctic multi-family building. Measurements were done during one year with readings every 30 minutes in a building consist
Purpose – The study aims to investigate the effects of a remote energy management service to the energy consumption of retail buildings. The study focuses on analysing the changes in energy consumption after the implementation of a facility service concept where building processes are optimized with a remote energy management system. The paper seeks to demonstrate that remotely operated building m
Denna uppsats undersöker de sedvanerättsliga reglerna om immunitet för statschefer och andra högt uppsatta statsrepresentanter. Syftet är att göra en övergripande kartläggning av reglernas innehåll som möjliggör korrekt rättstillämpning i framtiden. Genom att granska konventioner, kodifieringar, rättsfall och doktrin om ämnet, samt genom att undersöka det pågående kodifikationsarbetet, kartläggs rThis essay examines the rules of immunity for heads of state and other high-ranking state officials under international law. The aim is to create a comprehensive outline of the content of the rules, enabling a more accurate and legal-ly sound practice in the future. Through reviewing conventions, codifications, legal cases and legal doctrine on the subject, and through examining the current codi
Hemicellulosic materials are among the most abundant renewable resources on earth, but have not yet found any broad application. However, if a cost effective extraction method is developed, hemicelluloses have the potential to be utilized to a much larger extent in the future. Ultrafiltration (UF) is a low energy demanding separation process that can be used to concentrate and purify hemicellulose
