Search for dissertations about: "ground system"

Showing result 1 - 5 of 398 swedish dissertations containing the words ground system.

  1. 1. Capacity-controlled Ground Source Heat Pump Systems for Swedish single-family dwellings

    University dissertation from Stockholm : KTH Royal Institute of Technology

    Author : Hatef Madani; KTH.; [2012]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Heat Pump; Capacity control; ground; ground source; geothermal;

    Abstract : The overall objective of this thesis is to develop a structured method to approach the challenge of better understanding the techniques and potential for capacity control in Ground Source Heat Pump (GSHP) systems used in Swedish single-family dwellings. This thesis aims at development of a generic model of the system that can be used for comparative, descriptive, and predictive analysis of capacity controlled GSHP systems in single-family dwellings. READ MORE

  2. 2. Optimization of ground-coupled systems for heating and cooling of buildings

    University dissertation from Stockholm : KTH Royal Institute of Technology

    Author : Jüri Naumov; [2005]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; free-cooling; brine temperature; heat pump; ground system; heating demand; storage; building load; cooling demand; Borehole;

    Abstract : The use of ground-coupled systems in commercial buildings offers economic as well as environmental advantages. When both heating and cooling is required, a ground-coupled system can function both as a heat source and a heat sink. At the same time, it can also serve as a short term as well as a seasonal storage. READ MORE

  3. 3. Solar Colletors Combined with Ground-Source Heat Pumps in Dwellings - Analyses of System Performance

    University dissertation from Byggnadsfysik LTH, Lunds Tekniska Högskola

    Author : Elisabeth Kjellsson; Lunds universitet.; Lund University.; [2009]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; heating in dwellings; TRNSYS simulations; solar collectors; ground-source heat pumps; ground heat;

    Abstract : The use of ground-source heat pumps for heating buildings and domestic hot water in dwellings is increasing rapidly in Sweden. The heat pump extracts heat from the ground by a U-pipe in a vertical borehole. In order to reduce the electricity demand in the system, the combination with solar collectors is introduced. READ MORE

  4. 4. Design of ground source heat pump systems. Thermal modelling and evaluation of boreholes

    University dissertation from Byggnadsfysik LTH, Lunds Tekniska Högskola

    Author : Saqib Javed; Lunds universitet.; Lund University.; [2010]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; ground-coupled; optimization; simulation; borehole; Ground source heat pump; ground heat exchanger; thermal response test; fluid temperature; sensitivity analysis;

    Abstract : Ground source heat pump systems are fast becoming state-of-the-art technology to meet the heating and cooling requirements of the buildings. These systems have high energy efficiency potential which results in environmental and economical advantages. READ MORE

  5. 5. Truck Steering System and Driver Interaction

    University dissertation from Byggnadsfysik LTH, Lunds Tekniska Högskola

    Author : Kristoffer K D Tagesson; [2014]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; steering system; active safety; driver behaviour; active steering; torque feedback; heavy trucks;

    Abstract : This thesis presents a compilation of methods to consider when mapping steering functions and results as vehicle dimensions change. It is concluded that some final tuning inevitably will be required as major changes are performed. It is however possible to create qualified starting points using a set of simple rules as presented. READ MORE