Sökning: "internal heat dissipation"
Hittade 4 uppsatser innehållade orden internal heat dissipation.
1. Study of HfN as seed layer for next generation of BAW RF filters : synthesis, characterization, and investigation of piezoelectric performance
Uppsats för yrkesexamina på avancerad nivå, Luleå tekniska universitet/Institutionen för teknikvetenskap och matematikSammanfattning : Micro-electro-mechanical systems (MEMS) have become an essential component of a wide range ofelectronic devices over the last decades such as accelerometers, microphones, gas sensors, and filters.During this new millennium, a new radio frequency (RF) technology has been developed to satisfy thetough demands that arose due to the implementation of 5G wireless communication: bulk acoustic wave(BAW) filters. LÄS MER
2. Design of Resonant Filters for AC Current Magnification : Heating of Li-ion Batteries by Using AC Currents
Master-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)Sammanfattning : Using alternating current in order to heat batteries at sub-zero temperatures is a method,which is investigated in-depth by an increasing number of study groups. The thesis considersthe resonance phenomenon with the intention to use alternating current amplificationand battery’s impedance in order to induce power dissipation inside the battery, and in thisway increase its temperature. LÄS MER
3. CFD analyses of the gas flow inside the vessel of a hot isostatic press
Master-uppsats, KTH/Kraft- och värmeteknologiSammanfattning : Hot isostatic pressing (HIP) is a thermal treatment method that is used to consolidate, densify or bondcomponents and materials. Argon gas is commonly used as the pressure medium and is isostaticallyapplied to the material with an excess pressure of 500-2000 bar and a temperature of 500-2200oC. LÄS MER
4. Experimental and CFD Evaluation of Humidity Management Methods of Ruggedizing a COTS Electronics System for a Severe Climatic Environment
Master-uppsats, JTH, Data- och elektroteknikSammanfattning : This master thesis is about an investigation of anti-moisture methods for a nonhermeticelectronics enclosure containing a number of printed circuit boards(PCB) and placed in a severe climatic environment. The relevant theoretical background was provided first. LÄS MER