Search for dissertations about: "Heat exchangers#"

Showing result 1 - 5 of 67 swedish dissertations containing the words Heat exchangers#.

  1. 1. Performance Analysis and Optimal Design of Heat Exchangers and Heat Exchanger Networks

    University dissertation from Heat Transfer

    Author : Lieke Wang; Lund University.; Lunds universitet.; [2001]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; applied thermodynamics; Thermal engineering; flexibility; pinch technology; optimization; heat exchanger networks; thermal efficiency; multi-stream; plate-fin heat exchangers; plate heat exchangers; steam condensation; heat exchangers; Termisk teknik; termodynamik; Gases; fluid dynamics; plasmas; Gaser; fluiddynamik; plasma;

    Abstract : This thesis presents a study on performance analysis and optimal design of heat exchangers and heat exchanger networks. The study includes an experimental investigation of steam condensation in plate heat exchangers, optimal design of plate heat exchangers and plate-fin heat exchangers, and optimization of heat exchanger networks. READ MORE

  2. 2. Numerical Investigation of Some Heat Transfer Topics with Relevance to Gas Turbines

    University dissertation from Division of Heat Transfer, Lund Institute of Technology

    Author : Arash Saidi; Lund University.; Lunds universitet.; [2001]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; vakuumteknik; Maskinteknik; vacuum technology; vibration and acoustic engineering; hydraulics; Mechanical engineering; plasma; fluiddynamik; Gaser; Ribbed ducts; intercoolers; EASM; EVM; gas turbine; CFD; heat exchangers; extended surfaces; offset strip fin; heat transfer enhancement; Thermal engineering; applied thermodynamics; Termisk teknik; hydraulik; termodynamik; Gases; plasmas; fluid dynamics; vibrationer; akustik;

    Abstract : The first part of the investigation is related to the heat transfer and fluid flow problem inside ribbed ducts with a square cross section. The typical applications of this problem are in the cooling of gas turbine blades and guiding vanes. The second part is related to application of intercoolers in gas turbine systems. READ MORE

  3. 3. Laminar-flow Liquid-to-air Heat Exchangers - Energy-efficient Display Cabinet Applications

    University dissertation from Faculty of Engineering, Department of Energy Sciences, Division of Heat Transfer

    Author : Caroline Haglund Stignor; Lund University.; Lunds universitet.; [2009]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; energy-efficiency; indirect cooling; display cabinet; pressure drop; heat transfer; flat-tube heat exchanger; cooling coil; laminar;

    Abstract : Provisions are stored and displayed in supermarkets and grocery stores, at a temperature lower than the ambient, in display cabinets, which are responsible for a significant amount of the energy use in this sector. During the 1990s, major changes in the regulations governing the use of synthetic refrigerants took place in Sweden. READ MORE

  4. 4. Modeling and Performance Analysis of Alternative Heat Exchangers for Heavy Vehicles

    University dissertation from Faculty of Engineering, Department of Energy Sciences, Division of Heat Transfer

    Author : Wamei Lin; Lund University.; Lunds universitet.; [2014]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Countercurrent flow; Graphite foam; Heat exchanger; Thermal performance; Computational fluid dynamics;

    Abstract : Cross flow heat exchangers made from aluminum are common as radiators in vehicles. However, due to the increasing power requirement and the limited available space in vehicles, it is extremely difficult to increase the size of heat exchangers (HEXs) placed in the front of vehicles. READ MORE

  5. 5. Heat and Mass Transfer Investigations of Relevance for Food Engineering Applications

    University dissertation from Mrs Gunvi Andersson, Div. Heat Transfer, Box 118, 22100 Lund, Sweden

    Author : Dirk Sterner; Lund University.; Lunds universitet.; [2003]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Thermal engineering; applied thermodynamics; Termisk teknik; termodynamik; mathematical modelling; frozen and non-frozen food; minced beef patties; cooking; heat and mass transfer; plate heat exchangers; evaporation;

    Abstract : This thesis concerns two interrelated subjects of heat and mass transfer processes. The first one concerns mainly experimental measurements, with a subsequent development of a calculation procedure, of the thermal and hydraulic performances, experimental methods and evaluation procedures applied on various plate heat exchangers (PHEs) as evaporators with the refrigerant ammonia as working medium. READ MORE