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Showing result 1 - 5 of 38 essays matching the above criteria.

1. 1. Pilot Study: Test Rig for Self-lubricating Kaplan Runner Bearings

   University essay from KTH/Skolan för industriell teknik och management (ITM)

   Author : Bhairav Khadke; [2023]
   Keywords : Hydropower; Kaplan turbine; Self-lubricating bearing Test rig. Hydropower; Kaplan turbine; Self-lubricating bearing Test rig.; Vattenkraft; Kaplanturbin; Självsmörjande lager Testrigg.;

   Abstract : Hydropower has a relatively small impact on the climate and contributes to almost half of Sweden’s electricity production. Vattenfall own and operate roughly 125 large scale hydro power units of which about half utilizes a Kaplan turbine. READ MORE

3. 2. Thermo-mechanical vibration technique for degating of high-pressure die casting component – A numerical study

   University essay from Jönköping University/JTH, Material och tillverkning

   Author : Ramkumar Kandasamy; [2023]
   Keywords : High-pressure die casting; Thermo-mechanical vibration; Finite Element Method; ANSYS WB.;

   Abstract : The purpose of the thesis work given is to gain a better understanding of the degating process in high-pressure die casting components, as well as the effectiveness of the thermo-mechanical vibration technique for detaching cast components from the gating system. In addition, to evaluate and establish the most appropriate degating procedure in order to reduce labor, material costs, and processing time. READ MORE

4. 3. Effects of surface roughness on spillway flow behaviors

   University essay from Uppsala universitet/Nanoteknologi och funktionella material

   Author : Oday Asalya; Joar Fjällborg; [2023]
   Keywords : CFD; ansys fluent; roughness height; ytråhet;

   Abstract : This thesis examines the impact of spillway surface roughness on discharge capacity determination in hydraulic models. The study combines physical hydraulic modeling in a laboratory with Computational Fluid Dynamics (CFD) modeling using Fluent. READ MORE

5. 4. Analysis of energy efficient heat and lighting systems in a subarctic greenhouse

   University essay from Luleå tekniska universitet/Institutionen för teknikvetenskap och matematik

   Author : William Sigvardsson; [2023]
   Keywords : Energy efficiency; Sub-arctic greenhouses; Energy measures; Greenhouse climate control; Greenhouse technology; CFD;

   Abstract : This report studies a subarctic greenhouse located in Nikkala, Sweden called Nikkala handelsträdgård. Through a visit to the greenhouse coupled with the creation of two simulation models this study investigates the differences in energy demand with water-carried and air-carried heating systems, high pressure sodium lights and Light emitting diode lights and insulation in parts of the greenhouse without a active cultivation. READ MORE

6. 5. Investigation of Vibration in Electrical Circuit used in Maritime Applications

   University essay from KTH/Lättkonstruktioner, marina system, flyg- och rymdteknik, rörelsemekanik

   Author : Babak Rouhani; [2022]
   Keywords : Mechanics; Vibration; Modal analysis; Electronic equipment; Circuit board; Mekanik; Vibration; Modal analys; Elektronik utrustning; Kretskort;

   Abstract : This paper presents an investigation of a problem discovered in electronic equipment where mechanical load was the leading cause of the issue. Finite Element Analysis is used to investigate vibration issues in soldering and components. Simulations are performed with ANSYS modal and random vibration package. READ MORE