Search for dissertations about: "heating systems radiators"

Found 5 swedish dissertations containing the words heating systems radiators.

2. 1. Potential of Ventilation Radiators : Performance evaluation by numerical, analytical and experimental means

   Author : Jonn Are Myhren; Sture Holmberg; Per Olaf Tjelflaat; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Ventilation radiator; thermal comfort; exhaust ventilation; CFD; energy saving; convection fin; low temperature heating; Building engineering; Byggnadsteknik;

   Abstract : Energy consumption for heating and ventilation of buildings is still in 2011considered far too high, but there are many ways to save energy and construct lowenergy buildings that have not been fully utilised. This doctoral thesis has focused onone of these - low temperature heating systems. READ MORE

4. 2. The heat load in district heating systems

   Author : Sven Werner; Chalmers University of Technology; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; District heating; heat load; simulation; solar gain; air infiltration; natural ventilation; distribution heat losses; regression analysis; control systems;

   Abstract : This thesis considers the composition of the daily heat load in six Swedish district heating systems supplying heat for space heating and hot water supply. The analysis was performed by bringing together a heat load model and series of daily heat load observations covering periods ranging from five to eleven years. READ MORE

5. 3. Buildings and district heating - contributions to development and assessments of efficient technology

   Author : Per-Olof Johansson; Energihushållning; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; District heating; hydronic space heating; natural circulation; lowered return temperature; primary energy; add-on-fan blower;

   Abstract : The objective of this thesis is to contribute to improved performance of district heating systems by focusing on three items. Item 1: Study of three methods for improving the performance of sub-systems within buildings connected to the distribution network. The methods can be considered as more or less innovative. READ MORE

6. 4. Technical solutions for low-temperature heat emission in buildings

   Author : Adnan Ploskic; Sture Holmberg; Bjarne Olesen; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Analytical and numerical modeling; baseboard skirting heating; building energy performance; computational fluid dynamics CFD ; heat transfer; low-temperature heating; space heating; thermal comfort; Järnvägsgruppen - Effektiva tågsystem för godstrafik; Järnvägsgruppen - Effektiva tågsystem för godstrafik;

   Abstract : The European Union is planning to greatly decrease energy consumption during the coming decades. The ultimate goal is to create sustainable communities that are energy neutral. One way of achieving this challenging goal may be to use efficient hydronic (water-based) heating systems supported by heat pumps. READ MORE

7. 5. Modelling and simulation of building components : thermal interaction between multilayer wall and hydronic radiator

   Author : Christian Brembilla; Thomas Olofsson; Per Sahlin; Persson Leif; Annika Moström; Umeå universitet; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Hydronic radiator; multilayer wall; efficiencies of emission; systemanalys; Systems Analysis; engineering science with specialization in microsystems technology; teknisk fysik med inriktningen mikrosystemteknik;

   Abstract : Background and Scope: The scope of this thesis is to investigate the thermal behaviour of building components as hydronic radiator and multilayer walls subjected to dynamic conditions. The modelling and simulation of these building components provide information on how these components thermally interact among each other. READ MORE