Sökning: "black economy"

Visar resultat 21 - 25 av 29 avhandlingar innehållade orden black economy.

  1. 21. Energy Export Opportunities from Kraft Pulp and Paper Mills and Resulting Reductions in Global CO2 Emissions

    Författare :Erik Marcus Kristian Axelsson; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Energy export; Heat integration; Energy savings; Kraft pulp and paper mill; Global CO2 emissions;

    Sammanfattning : With increasing energy prices and increasing demand for CO2-lean energy sources, energy savings in the pulp and paper industry become ever more relevant. Significant energy savings in kraft mills can be made by e.g. improved heat integration and installation of an energy-efficient evaporation plant. LÄS MER

  3. 22. Characterisation of Muko iron ores (Uganda( for defferent routes of iron production

    Författare :Abraham Judah Bumalirivu Muwanguzi; Andrey V Karasev; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; iron ore; iron; characterization; physical and metallurgical properties; sinter; pellet; blast furnace; direct reduction; Muko; Uganda; Materials science; Teknisk materialvetenskap; SRA - Production; SRA - Produktion;

    Sammanfattning : Iron and its products, especially the various forms of steel, have been and still are a vital material in many sectors of life. It is utilized in many industrial activities ranging from production of heavy duty mechanical equipment to light electrical appliances and home appliances. With the world‟s iron ore consumption estimated to stand at 1. LÄS MER

  4. 23. Essays on Labor Economics : The Role of Government in Labor Supply Choices

    Författare :Niklas Blomqvist; Peter Skogman Thoursie; Martin Olsson; Björn Tyrefors; Spencer Bastani; Stockholms universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Involuntary Part-time Employment; Labor Supply; Tax Elasticity; Refugees; Immigration; Integration; Natural Resource Extraction; Family Resources; Health; Economics; nationalekonomi;

    Sammanfattning : "Right to Work Full-time" Policies and Involuntary Part-time EmploymentThis paper investigates the effect of right to full-time policies implemented to decrease involuntary part-time work for public care workers employed by Swedish municipalities. Taking advantage of a staggered decision process, these policies are evaluated using a difference-in-differences approach. LÄS MER

  5. 24. Turbo Charged Low Temperature Combustion - Experiments, Modeling and Control

    Författare :Hans Aulin; Förbränningsmotorer; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; HCCI; PPC; CAI; NVO; low temperature combustion; torductor; ion current; control; modeling; combustion feedback; sensors;

    Sammanfattning : Both the global economy and the society in general are dependent on the availability of reliable transportation. Most transportation technology involves the use of internal combustion engines in one way or another. LÄS MER

  7. 25. Towards better understanding of the flow inside industrial processes: a CFD study

    Författare :Simon Johansson; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Strömningslära; Fluid Mechanics;

    Sammanfattning : Computational Fluid Dynamics (CFD) is a method to numerically pre- dict flow patterns. In this thesis the method is used to predict the flow in a hydrochloric acid regeneration plant located at SSAB EMEA in Borl ̈ange and to investigate the flow in a burner region of a rotary kiln at LKAB in Kiruna. LÄS MER