Search for dissertations about: "Signhild Gehlin"

Found 2 swedish dissertations containing the words Signhild Gehlin.

  1. 1. Thermal response test in situ measurements of thermal properties in hard rock

    University dissertation from Luleå : Luleå tekniska universitet

    Author : Signhild Gehlin; [1998]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Vattenteknik; Water Resources Engineering;

    Abstract : In-situ determination of thermal properties in bedrock is important for the sizing of larger BTES systems. In-situ values of thermal conductivity may reduce required borehole length up to 30%. This thesis treats a new mobile thermal response test equipment (TED), developed in Luleå, Sweden, 1995-98. READ MORE

  2. 2. Thermal response test method development and evaluation

    University dissertation from Luleå : Luleå tekniska universitet

    Author : Signhild Gehlin; [2002]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Vattenteknik; Water Resources Engineering;

    Abstract : Since the first introduction of thermal response tests with mobile measurement devices in Sweden and USA in 1995, the method has developed and spread in North America and Europe. Thermal response tests have so far been used primarily for in situ determination of design data for BHE (borehole heat exchanger) systems, but also for evaluation of grout material, heat exchanger types and groundwater effects. READ MORE