Essays about: "control valves"

Showing result 1 - 5 of 77 essays containing the words control valves.

1. 1. The design of a hydraulic equalizer bar for the feeding mechanism on forest harvester heads

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

   Author : Arvid Söderlund; [2023]
   Keywords : Harvester; Harvester head; Komatsu Forest; Hydraulics; Equalizer bar; Parallellstag; Stag; Skogsmaskin; Skördare; Aggregat; Skog;

   Abstract : Due to the importance of a correct tree placement and the wear that occurs to equalizer bars inharvester heads, Komatsu Forest AB in Umeå was interested if the bar could be replaced with ahydraulic system. According to Komatsu, the problems were that the equalizer bars that are responsible forsynchronizing the delimbing knives and feeding mechanism add weight, take up space and have atendency to break before their life expectancy. READ MORE

3. 2. Enhancing Comfort and Robustness in Hydronic Radiator Systems through Integration of Body Heat Predictions : A Study on a Novel LPV Controller

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

   Author : Fahim Pirmohamed; [2023]
   Keywords : Energy Efficiency; Hydronic Radiators; Linear Parameter-Varying Control; Gain-Scheduling; Occupancy Detection; Radiated Energy Estimation; Thermostatic Radiator Valves; Smart Heating Systems; Robustness; Energieffektivitet; Vattenburna Element; Linjär Parameterberoende Reglering; Gain-Scheduling; Detektering av Närvaro; Beräkning av Utstrålad Energi; Termostatiska Radiatorventiler; Smarta Värmesystem; Robusthet;

   Abstract : The quest to balance occupant comfort with energy efficiency is a key challenge in the field of heating systems, particularly for hydronic radiators. This study addresses this issue by investigating the integration of body heat predictions into a gain-scheduling controller for a hydronic radiator system. READ MORE

4. 3. Optimisation of a LOX/Ethanol rocket engine ignition

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

   Author : Pierre Collard; [2022]
   Keywords : ;

   Abstract : For more than half a century, humanity has achieved the feat of extracting itself from the earth's atmosphere and sailing into space, broadening the spectrum of knowledge and curiosity. Although space market seemed mastered and stable the arrival of new private players has reorganized the sector through new technological choices. READ MORE

5. 4. Centralized motion control of gas-hydraulic suspension on e-bus

   University essay from Luleå tekniska universitet/Institutionen för system- och rymdteknik

   Author : Robin Rutström Kugel; [2022]
   Keywords : ;

   Abstract : Most modern heavy vehicles use pneumatic suspension systems to adjust the height and stiffness of thesuspension by inflating or deflating air bellows with compressed air. The pneumatic suspension system hasbeen advantageous to use, even though the required components are bulky, because of the versatility thatthe pneumatic systems provide. READ MORE

6. 5. Model Predictive Climate Control for Electric Vehicles

   University essay from Uppsala universitet/Avdelningen för systemteknik

   Author : Erik Norstedt; Olof Bräne; [2021]
   Keywords : MPC; model predictive control; climate control; electric vehicle; battery; thermal management; electrified vehicle; battery electric vehicle; nonlinear MPC; custom cost functions; elfordon; temperaturreglering;

   Abstract : This thesis explores the possibility of using an optimal control scheme called Model Predictive Control (MPC), to control climatization systems for electric vehicles. Some components of electric vehicles, for example the batteries and power electronics, are sensitive to temperature and for this reason it is important that their temperature is well regulated. READ MORE