Search for dissertations about: "whr"

Showing result 1 - 5 of 20 swedish dissertations containing the word whr.

2. 1. Waste heat recovery in a cruise vessel

   Author : Fredrik Ahlgren; Marcus Thern; Aykut Ölcer; Linnéuniversitetet; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; whr; orc; ships; waste heat recovery; energy efficiency; cruise ships; Sjöfartsvetenskap; Maritime Science;

   Abstract : In three studies of a cruise ship the author has investigated waste heat recovery (WHR)from exhaust gases using an organic Rankine cycle (ORC), and also mapped the energyand exergy flows within the ship. Data were collected from the ship’s machinerysystem for a total extent of one year, and this data were used for simulations andenergy calculations. READ MORE

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

   Author : Habib Aghaali; Hans-Erik Ångström; Carlos Guardiola; KTH; []
   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; Vehicle and Maritime Engineering; Farkostteknik; Energy Technology; Energiteknik;

   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

5. 3. Women, diabetes and coronary heart disease

   Author : Annika Dotevall; Göteborgs universitet; []
   Keywords : diabetes mellitus; women; myocardial infarction; risk factors; autoantibodies; oxidized LDL; triglycerides; WHR; BMI; HDL-cholesterol; ACS;

   Abstract : Aims: The aim of the present study was to explore the reason why women with diabetes lose the female protection against MI, by investigating cardiovascular risk factors, markers of inflammation, early predictors for future development of diabetes and clinical manifestations in diabetes and coronary heart disease.Subjects and methods: Women with (n=29), and without diabetes (DM) (n=64), hospitalised with a smyocardial infarction ( MI) 1994-96, were compared with DM-women without MI (n=46) and healthy controls (n=125). READ MORE

6. 4. Design and modelling of innovative machinery systems for large ships

   Author : Ulrik Larsen; Chalmers tekniska högskola; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

   Abstract : Eighty percent of the growing global merchandise trade is transported by sea. The shipping industry is required to reduce the pollution and increase the energy efficiency of ships in the near future. There is a relatively large potential for approaching these requirements by implementing waste heat recovery (WHR) systems. READ MORE

7. 5. Stress system function in abdominal obesity. The hypothalamic-pituitary-adrenal axis and the sympathetic nervous system in middle-aged men

   Author : Thomas Ljung; Göteborgs universitet; []
   Keywords : Abdominal obesity; stress; HPA axis; cortisol; glucocorticoid receptors; sympathetic nervous system; catecholamines; depression; SSRI;

   Abstract : Background: There is a strong relationship between central (abdominal, visceral) obesity, impaired glucose tolerance, insulin resistance, dyslipidemia and elevated blood pressure. These abnormalities are included in the term Metabolic Syndrome, and indicate an elevated risk for cardiovascular disease and diabetes type 2. READ MORE