Search for dissertations about: "heating ventilation air conditioning"

Showing result 1 - 5 of 20 swedish dissertations containing the words heating ventilation air conditioning.

  2. 1. Energy efficient indoor climate control - A practical approach for enhanced implementability

    Author : Mattias Gruber; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; model-based control; building automation; ventilation and air-conditioning; office buildings; implementability; energy efficiency; Heating; indoor climate control;

    Abstract : This work deals with energy efficient indoor climate control in office buildings, with an emphasis on implementability. More specifically, the aim is to suggest and evaluate improvements to building automation systems that are sufficiently simple and efficient to be realistic alternatives to commonly-used systems. READ MORE

  4. 2. Adapting Variable Air Volume (VAV) Systems for Office Buildings without Active Control Dampers

    Author : Mari-Liis Maripuu; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; climate control; CAV; variable supply air diffuser; ventilation; VAV; energy efficiency;

    Abstract : In commercial buildings the building services systems may account for a substantial part of the need of energy. There is, at least in Sweden, a large existing stock of 20 to 30 year old office buildings, which are supplied with centralised constant air volume flow (CAV) air conditioning systems with the primary function to keep the room temperature at an acceptable level summertime. READ MORE

  5. 3. Energy efficiency and ventilation in Swedish industries barriers, simulation and control strategy

    Author : Patrik Rohdin; Bahram Moshfegh; Hazim Awbi; Magnus Karlsson; Alfred Moser; Linköpings universitet; []
    Keywords : Industrial energy efficiency; Industrial ventilation; Barriers; Driving forces. CFD; TECHNOLOGY; TEKNIKVETENSKAP;

    Abstract : The energy issue is presently in focus worldwide. This is not only due to increasing environmental concern regarding energy related emissions, but also due to the trend of increasing energy prices. Energy usage in the industrial sector in Sweden today represents about one third of the national energy use. READ MORE

  6. 4. Modelling the dynamics of domestic low-temperature heat pump heating systems for improved performance and thermal comfort : a systems approach

    Author : Dimitra Sakellari; Per Lundqvist; Savvas Tassou; KTH; []
    Keywords : Technology; heat pump; domestic heating and ventilation; low-temperature hydronic heat distribution; systems approach; integration; simulation; energy efficiency; TEKNIKVETENSKAP; TECHNOLOGY; TEKNIKVETENSKAP;

    Abstract : The present environmental concerns and the rising human requirement for solutions with better comfort and lower costs have resulted in an increased awareness for the energy use in the built environment. Technical advances in building structural systems and materials, heating and other comfort-providing systems and controlling strategies all lead to the integration of building technology with the function of buildings and the aesthetics. READ MORE

  7. 5. Machine learning for building energy system analysis

    Author : Fan Zhang; Johan Håkansson; Chris Bales; Stefan Byttner; Högskolan Dalarna; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; district heating; machine learning; deep learning; HVAC; neural networks;

    Abstract : Buildings account for approximately 40% of the global energy, and Heating, Ventilation, and Air Conditioning (HVAC) contributes to a large proportion of building energy consumption. Two main negative characteristics that contribute to performance degradation and energy waste in an HVAC system are inappropriate control strategies and faults. READ MORE