Sökning: "PUMP"
Visar resultat 21 - 25 av 1157 uppsatser innehållade ordet PUMP.
21. Elektrifiering av hydraulsystem : En studie kring lämpliga växlar och motorer för grävmaskinstillbehöret tiltrotatorn
Uppsats för yrkesexamina på grundnivå, Uppsala universitet/Industriell teknikSammanfattning : Today’s electric excavators uses standard hydraulics to control external tools. To increase the degree of freedom the excavator is equipped with a tiltrotator placed between arm and bucket. LÄS MER
22. Towards a setup for narrowband terahertz generation through difference-frequency mixing of chirped ultrashort pulses
Master-uppsats, Lunds universitet/Atomfysik; Lunds universitet/Fysiska institutionenSammanfattning : Terahertz radiation is a useful tool for inducing lower-energy excitations in matter, where it can be used to cause structural changes through direct interaction with the crystal lattice. Sub-picosecond optical pulses can be used to generate intense broadband terahertz pulses through optical rectification in nonlinear crystals, reaching peak electric fields of several MV/m and conversion efficiencies as high as a few percent. LÄS MER
23. Preliminary Design of a 30 kN Methane-Oxygen-powered Electric-Pump-fed Liquid Rocket Propulsion System
Master-uppsats, Luleå tekniska universitet/RymdteknikSammanfattning : The design of a liquid rocket propulsion system, unlike that of a standalone system, is intertwined with the overall development of a number of associated systems and is influenced by a multitude of conditions and considerations: from the requirements needed to accomplish the mission to the rationalizations involved behind the development of each rocket system and/or component. In my thesis, the preliminary design of a “new generation” 30 kN rocket engine driven by an electric pump feed system and running on liquid methane and liquid oxygen is performed. LÄS MER
24. Evaluation of Excess Heat Driven Carbon Capture Integrated at a Swedish Pulp Mill
Master-uppsats, Lunds universitet/Kemiteknik (CI)Sammanfattning : As the atmospheric carbon dioxide keeps increasing, bioenergy with carbon capture and storage (BECCS) is getting increased attention as a measure to reduce the emissions of carbon dioxide. It is especially interesting in Sweden where the extensive paper and pulp industry constitutes point sources of biogenic carbon dioxide. LÄS MER
25. Trimning av öppet pumphjul mot insatsring
M1-uppsats, KTH/ProduktionsutvecklingSammanfattning : En lämplig pumpanordning är avgörande för hantering av stora mängder vatten. I det här arbetet kommer fokus ligga på pumpar som består av öppna pumphjul. Vid montering av pumpen bildas en spalt mellan insatsring och pumphjul, som bör ligga inom intervallet 0,5–0,8 mm för optimal effekt. LÄS MER