Showing result 1 - 5 of 19 essays containing the words convective cooling.

1. ## 1. Implementation of large-scale heat storage of excess heat in Växjö´s combined heat and power plant. : A techno-economic analysis

University essay from Linnéuniversitetet/Institutionen för byggd miljö och energiteknik (BET)

Abstract : To achieve greater economic stability, CHP plant operators such as VEAB from Växjö are motivated to search for a new business model that are compatible with their existing facilities while also contribute to increasing the overall revenue of the company. These processes include hydrogen production and biochemical products such as biopolymer and biofuels. READ MORE

2. ## 2. Influence of Reynolds Number and Heat Flux when Cooling an Array of Cylinders

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

Keywords : Reynolds Number; Heat Flux; Porous Media; Cooling;

Abstract : When batteries are used, it is of interest to know how high the temperature will become and if the cooling is efficient enough. In this thesis project, the geometry used are batteries placed in an array shape, inside a box. This gives the possibility of assuming porosity conditions when looking at the box from the outside. READ MORE

3. ## 3. An introduction to some ordinary differential equations governing stellar structures

University essay from Lunds universitet/Matematik (naturvetenskapliga fakulteten)

Keywords : Mathematics and Statistics;

Abstract : The Lane-Emden equation is a non-linear differential equation governing the equilibrium of polytropic stationary self-gravitating, spherically symmetric star models; $${\frac {1}{\xi ^{2}}}{\frac {d}{d\xi }}\left({\xi ^{2}{\frac {d\theta }{d\xi }}}\right)+\theta ^{n}=0.$$ In the isothermal cases we have the Chandrasekhar equation: $${\frac {1}{\xi ^{2}}}{\frac {d}{d\xi }}\left({\xi ^{2}{\frac {d\psi}{d\xi }}}\right)-e^{-\psi}=0$$ After having derived these models, we will go through all cases for which analytic solutions are achievable. READ MORE

4. ## 4. Simulation of solidification and cooling of a casting product using COMSOL Multiphysics

University essay from Lunds universitet/Institutionen för energivetenskaper

Abstract : In this project, the cooling and solidification processes for a Valmet Foundry product have been simulated in order to shorten the cooling time. The study has also been done in cooperation with RISE Swecast in Jönköping, as a part of finding ways to make casting procedures more energy efficient. READ MORE