Search for dissertations about: "heat loss"

Showing result 1 - 5 of 210 swedish dissertations containing the words heat loss.

  1. 1. Neonatal water and heat exchange : The influence of environmental factors and infant maturity

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Gunnar Sjörs; Uppsala universitet.; [1997]
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Pediatrics; Neonatal; transepidermal water loss; respiratory water loss; radiant heat; heat exchange; water loss; incubators; Pediatrik; MEDICINE Dermatology and venerology; clinical genetics; internal medicine Internal medicine Paediatric medicine; MEDICIN Dermatologi och venerologi; klinisk genetik; invärtesmedicin Invärtesmedicin Pediatrisk medicin; pediatrik; Pediatrics;

    Abstract : The environment provided by commonly used infant incubators, the effect of radiantheat and exposure to cold air on the exchange of water and heat between newborninfants and their environment, and the water loss through the skin of infants born at24-25 weeks of gestation were investigated. The evaporation of water from the skinwas measured by the gradient method. READ MORE

  2. 2. Exhaust Heat Utilisation and Losses in Internal Combustion Engines with Focus on the Gas Exchange System

    University dissertation from Stockholm : KTH Royal Institute of Technology

    Author : Habib Aghaali; KTH.; [2014]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Turbocharger; heat transfer; heat loss; exhaust heat utilisation; waste heat recovery; turbocompound; divided exhaust period; internal combustion engine; gas exchange; pumping loss; variable valve timing; WHR; DEP; Turbo; värmeöverföring; värmeförluster; avgasvärme utnyttjande; förluster vid värmeåtervinning; turbocompound; delad avgasperiod; förbränningsmotor; gasväxling; pumpningsförlust; variabla ventiltider; WHR; DEP; Farkostteknik; Vehicle and Maritime Engineering; Energiteknik; Energy Technology;

    Abstract : Exhaust gas energy recovery should be considered in improving fuel economy of internal combustion engines. A large portion of fuel energy is wasted through the exhaust of internal combustion engines. Turbocharger and turbocompound can, however, recover part of this wasted heat. READ MORE

  3. 3. Heat loss to the ground from a building : slab on the ground and cellar

    University dissertation from Byggnadsfysik LTH, Lunds Tekniska Högskola

    Author : Carl-Eric Hagentoft; [1988]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Heat loss; heat transfer in the ground; thermal analysis; slab; cellar; crawl-space;

    Abstract : Heated buildings induce a heat flow from the building foundation into the ground. The topic of this thesis is the thermal process in the ground and, in particular, the heat losses from the building to the ground. Foundations of the three types slab on the ground, cellar, and crawl-space are dealt with. The crawl-space is treated in separate report. READ MORE

  4. 4. Sustainable building ventilation solutions with heat recovery from waste heat

    University dissertation from KTH Royal Institute of Technology

    Author : Behrouz Nourozi; KTH.; [2019]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; wastewater heat recovery; balanced mechanical ventilation; defrosting reduction; heat recovery efficiency; thermal load shifting; renewables; Civil and Architectural Engineering; Byggvetenskap;

    Abstract : The energy used by building sector accounts for approximately 40% of the total energy usage. In residential buildings, 30-60% of this energy is used for space heating which is mainly wasted by transmission heat losses. A share of 20-30% is lost by the discarded residential wastewater and the rest is devoted to ventilation heat loss. READ MORE

  5. 5. Clothing Evaporative Resistance: Its Measurements and Application in Prediction of Heat Strain

    University dissertation from Lund University (Media-Tryck)

    Author : Faming Wang; [2011]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; thermal manikin; clothing ensemble; evaporative resistance; localised evaporative resistance; thermophysiological response; heat stress; heat strain; the Predicted Heat Strain PHS model;

    Abstract : Clothing evaporative resistance is one of the most important inputs for both the modelling and for standards dealing with thermal comfort and heat stress. It might be determined on guarded hotplates, on sweating manikins or even on human subjects. READ MORE