Search for dissertations about: "Chalmers University Of Technology University Of Gothenburg"

Showing result 1 - 5 of 22 swedish dissertations containing the words Chalmers University Of Technology University Of Gothenburg.

  1. 1. Environmental Assessment of Emerging Technologies: The Case of Alternative Transport Fuels

    Author : Karl Jonasson; Karl Hillman; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; environmental assessment; biofuels; transport; LCA; sustainable development; technological transitions; technology path assessment; alternative fuels; socio-technical scenarios; life-cycle assessment; technological systems;

    Abstract : There are several methods to evaluate the environmental performance of new technologies. The purpose of this thesis is to contribute to the methodological development of environmental assessments, with contributions from life-cycle assessment (LCA), theories on technical change and socio-technical scenarios. READ MORE

  2. 2. On Rate-Dependency of Gothenburg Clay

    Author : Mats Olsson; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; K0-triaxial cell; destructuration.; creep; anisotropy; Soft clay;

    Abstract : On Rate-Dependency of Gothenburg ClayMATS OLSSONDepartment of Civil and Environmental EngineeringDivision of GeoEngineeringChalmers University of TechnologyABSTRACTLong-term settlements in clay constitute a major engineering challenge in areas with deep deposits of soft clay. This dissertation aims to extend the understanding and theoretical framework of rate-dependent soil behaviour, so that uncertainties in predictions of long-term settlements are significantly reduced. READ MORE

  3. 3. District heating in future Europe : Modelling expansion potentials and mapping heat synergy regions

    Author : Urban Persson; Sven Werner; Lars J. Nilsson; Sweden Gothenburg Chalmers University of Technology; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; district heating; energy efficiency; distribution capital cost; heat demand density; plot ratio; excess heat recovery; sequential energy supply; heat utilisation rate; effective width;

    Abstract : This thesis presents a set of methodologies and approaches to investigate and determine the extent by which district heating can contribute to improved energy system efficiency and reduced carbon dioxide emissions in future Europe. The main motivation for suggesting large-scale implementation of district heating as a structural energy efficiency measure to obtain these objectives originates essentially in the predicament that a majority of European buildings today remain highly dependent on fossil fuels to provide energy needed for space heating and hot water preparation. READ MORE

  4. 4. Challenges of renovating the Gothenburg multi-family building stock - An analysis of comprehensive building-specific information, including energy performance, ownership and affordability

    Author : Mikael Mangold; Seppo Junnila; Sweden Chalmers University of Technology; []
    Keywords : Aging building stock; Energy performance certificate; Energy retrofitting; Equity; GIS; Göteborg; Measured energy usage; Multi-family dwellings; Social sustainability; Tenure;

    Abstract : In Sweden and many European countries, the building stock increased at a rapid pace during the period of 1950-1975. This aging building stock is in need of renovation which is a challenge and an opportunity in reaching the energy performance targets as well as decreasing societal inequities. READ MORE

  5. 5. Hydrothermal Liquefaction of Lignin into Bio-Oil

    Author : Huyen Nguyen Lyckeskog; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; hydrothermal conversion; aging; bio-oil; stability; subcritical water; lignin;

    Abstract : Lignin, one of the three main components of lignocellulosic biomass, is the second most abundant organic polymer found on Earth. Nowadays, most of the lignin (almost 99%) produced in the Kraft pulping process is used as internal fuel. READ MORE