Search for dissertations about: "energy use pattern in industry"

Showing result 1 - 5 of 8 swedish dissertations containing the words energy use pattern in industry.

2. 1. Investigation of Some Heat Transfer Surfaces for Gas Turbine Recuperators

   Author : Esa Utriainen; Värmeöverföring; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; trapezoidal; corrugated undulated; cross wavy; cross corrugated; chevron; pressure drop; heat transfer; microturbine; Recuperator; gas turbine; plate-fin; Technological sciences; Teknik; Thermal engineering; applied thermodynamics; Termisk teknik; termodynamik; Gases; fluid dynamics; plasmas; Gaser; fluiddynamik; plasma;

   Abstract : A part of this thesis has been devoted to present general recuperator technology such as available gas turbine recuperator types, applications where recuperators are utilized, recuperator materials etc. An investigation of some compact and highly efficient heat transfer surfaces, for intended use in gas turbine recuperators, include the following surfaces: · Cross Wavy (CW) primary surface. READ MORE

4. 2. Nutrient economy in annual and perennial crops : comparisons between and within crop species in a sustainability context

   Author : Fereshteh Pourazari; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
   Keywords : LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES;

   Abstract : Nitrogen use efficiency (NUE) of agricultural crops is related to crop nitrogen (N) uptake and thereby the amount of N that is removed from agro-ecosystems through crop harvest. As the N removal through harvest is linked to the fertilization requirements and the risk of N leaching, the crop NUE is an important aspect of sustainability in agriculture. READ MORE

5. 3. Mechanical processing for improved products made from Swedish hardwood

   Author : Jimmy Johansson; Dick Sandberg; František Hapla; Växjö universitet; []
   Keywords : LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; capillarity; capillary transport; wood products; customer requirements; ecoeffectiveness; ; sawing pattern; star-sawing; the PrimWood Method; timber products; volume yield; water transport; Wood fibre and forest products; Träfiber- och virkeslära;

   Abstract : Swedish hardwood is today used in the energy, pulp and mechanical hardwood industries. Only very small volumes of Swedish hardwood are, however, consumed by the mechanical industry that normally pays the highest timber price. READ MORE

6. 4. Analysis of Losses in Inverter-fed Synchronous Machines with Salient-pole Solid Rotors

   Author : Samer Badie Shisha; Chandur Sadarangani; Peter Tavner; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Electric power engineering; Elkraftteknik;

   Abstract : The work that is presented here considers loss analysis of inverter-fed field-excited synchronous machines. The project was initiated, as a co-operation between indus­trial partners and KTH, with the aim of providing knowledge about the losses that take place in inverter-fed large scale synchronous machines. READ MORE

7. 5. Strategies, Methods and Tools for Solving Long-term Transmission Expansion Planning in Large-scale Power Systems

   Author : Desta Zahlay Fitiwi; Lennart Söder; Michel Rivier; Fernando de Cuadra; Andres Ramos; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Transmission expansion planning; uncertainty and variability; optimization; stochastic programming; moments technique; clustering; Electrical Engineering; Elektro- och systemteknik;

   Abstract : Driven by a number of factors, the electric power industry is expected to undergo a paradigm shift with a considerably increased level of variable energy sources. A significant integration of such sources requires heavy transmission investments over geographically wide and large-scale networks. READ MORE