Sökning: "Heat Equation"
Visar resultat 1 - 5 av 112 uppsatser innehållade orden Heat Equation.
1. Establishing High-Temperature Models for Leakage Current in Gated Lateral Bipolar Junction Transistors
Uppsats för yrkesexamina på avancerad nivå, Luleå tekniska universitet/Institutionen för teknikvetenskap och matematikSammanfattning : Power-efficient circuits are a vital step in moving towards a greener future. Battery life can get substantially improved by decreasing the amount of power a circuit needs. Lower power also leads to less excess heat generated. LÄS MER
2. Construction and Evaluation of a Numerical Model for Heat Transfer in a Ladle During Pre-heating : A Finite Volume Approach to the Diffusion Equation using Julia
Kandidat-uppsats, KTH/MaterialvetenskapSammanfattning : Heat transfer is key to understanding many processes in engineering. At a steel mill heat transfer is absolutely crucial to understanding most of the processes. One such a process is the pre-heating of a freshly relined ladle. LÄS MER
3. Utvärdering av olika lösningar för VVC vad gäller temperatur och uppehållstid
Kandidat-uppsats, KTH/Skolan för industriell teknik och management (ITM)Sammanfattning : I denna studie jämfördes tre varmvattencirkulation-system med syftet att ta fram ett system som uppfyller Boverkets krav men också upprätthåller temperaturnivåer som förhindrar legionella bildning. Prestandan i systemen undersöktes och jämfördes med hänsyn till faktorerna: temperatur, uppehållstid och värmeförlust. LÄS MER
4. Homogenization of a higher gradient heat equation: Numerical solution of the cell problem using quadratic B--spline based finite elements
Magister-uppsats, Karlstads universitet/Institutionen för matematik och datavetenskap (from 2013)Sammanfattning : This study focuses on the numerical solution of a fourth-order cell problem obtained through a two- scale expansion approach applied to a higher gradient heat equation microscopic problem involving temperature distributions. The main objective is to investigate the temperature field within the macroscale domain and compute the effective conductivity using finite element methods. LÄS MER
5. Numerical Modelling of a Packed Bed Thermal Energy Storage for Applications in a Carnot Battery : KTH Thesis Report
Master-uppsats, KTH/Skolan för industriell teknik och management (ITM)Sammanfattning : This thesis explores the heat transfer characteristics of a packed bed thermal energy storage device through the development of a 3D model in COMSOL Multiphysics. The model is based on a laboratory-scale device consisting of an aluminum box filled with sand, which acts as the thermal storage medium. LÄS MER