Advanced search

Showing result 1 - 5 of 156 swedish dissertations matching the above criteria.

  2. 1. Challenges for end-use energy efficiency

    Author : Frances Sprei; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; technological development; Swedish building sector; downsizing; Energy efficiency; fuel consumption; market barriers;

    Abstract : The scientific community has reached close to a consensus that anthropogenic emissions of greenhouse gases are causing a change of the global climate. These emissions arise foremost from the burning of fossil fuels, and secondly from land use change. READ MORE

  4. 2. Testing for Rationality, Separability and Efficiency

    Author : Per Hjertstrand; Nationalekonomiska institutionen; []
    Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Revealed preference; Regional convergence; Rationality; Nonparametric; NONPAR test; LP test; GARP; Efficiency; Data Envelopment Analysis DEA ; Afriat’s Theorem; Bootstrap; Swofford and Whitney test; Weak separability;

    Abstract : This thesis aims to propose, evaluate and apply test procedures for rationality, weak separability and efficiency. In particular, it focuses on nonparametric revealed preference procedures. READ MORE

  5. 3. Costs in Swedish Public Transport : An analysis of cost drivers and cost efficiency in public transport contracts

    Author : Andreas Vigren; Svante Mandell; Johan Holmgren; Statens väg- och transportforskningsinstitut; []
    Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Cost; Increase; Efficiency; Contract; Procurement; Public transport; 02 Road: Economics; 02 Road: Economics; Transportvetenskap;

    Abstract : During the last seven years, the total cost for Swedish public transport provision has increased by over 30 percent in real terms according to figures from the government agency Transport Analysis. A similar pattern is found if considering a longer time span. READ MORE

  6. 4. Energy Efficiency Comparison Between Two-level and Multilevel Inverters for Electric Vehicle Applications

    Author : Oskar Josefsson; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Electric Vehicle EV ; Drive Cycle; Plug-in Electric Vehicle PEV ; Multilevel Inverter MLI ; Two-level Inverter TLI ; Efficiency.; Integrated Charger;

    Abstract : In order to contribute to the development of energy and cost efficient electric vehicles, a thorough analysis of two different electric converter topologies is performed, considering different drive cycles and different control strategies. In the electric vehicles available on the market today, a high voltage (200−400 V ) battery pack composed of several battery modules is connected to one or more inverters which create AC voltages to the electric propulsion machines. READ MORE

  7. 5. Approaches to energy efficient building development : studying under Chinese contexts

    Author : Zhenhong Gu; Ronald Wennersten; Per Heiselberg; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Energy efficiency; China; Passive House; Low Exergy system; Built Environmental Assessment; LCA; Swedish housing; Hammarby Sjöstad; Eco-village; Game theory; System theory; Soft Systems Methodology; Environmental engineering; Miljöteknik;

    Abstract : This thesis presents a general description of approaches to energy efficient building development under Chinese contexts. The purpose of the work is to discuss how Chinese building development can be approved from an energy saving perspective. Building development is a complicated process that relates to many stakeholders’ interests. READ MORE