Sökning: "investering"
Visar resultat 31 - 35 av 49 avhandlingar innehållade ordet investering.
31. Evaluating System Consequences of Energy Co-operation between Industries and Utilities
Sammanfattning : Energy conservation, energy efficiency measures, and energy carrier conversion within the industry are extremely important issues in order to deal with energy resource depletion and the threats from global warming. In Swedish industry there is potential for reductions of carbon dioxide emissions and resource use through utilization of excess heat and conversion of compression cooling to other cooling technologies using less electricity. LÄS MER
32. A systematic approach for major renovation of residential buildings
Sammanfattning : In Sweden, buildings are responsible for about 40 % of total energy use and about 10 % of total CO2 emissions Today more than 60 % of existing Swedish residential buildings are over 40 years old and are in need of major renovation. In addition, 15 % of all multi-family buildings and 27 % of all single-family houses were built before 1945. LÄS MER
33. Combining simulation and optimization for improved decision support on energy efficiency in industry
Sammanfattning : Industrial production systems in general are very complex and there is a need for decision support regarding management of the daily production as well as regarding investments to increase energy efficiency and to decrease environmental effects and overall costs. Simulation of industrial production as well as energy systems optimization may be used in such complex decision-making situations. LÄS MER
34. With district heating toward a sustainable future : System studies of district heating and cooling that interact with power, transport and industrial sectors
Sammanfattning : The aim of this thesis is to identify measures which should be taken in DH systems (DHSs) in order to contribute to the development of the DHSs and other energy systems (especially transport, industrial and power sectors) toward sustainability.Four business strategies were analysed: delivering excess heat from biofuel production industry to DHSs, conversion of industrial processes to DH, integration of biofuel production in DHSs and integration of DHdriven absorption cooling technology in DHSs. LÄS MER
35. Integration of thermochemical processes with existing waste management industries to enhance biomethane production
Sammanfattning : In most waste management industries, waste is separated into different fractions, each of which is treated with suitable processes. Established technologies such as waste combustion for combined heat and power (CHP) production and biomethane production through anaerobic digestion (AD) of biodegradable waste work fine as standalone processes. LÄS MER