Articles — Project / Lab Report

Betweenness centrality: shortest paths vs. random walks

How is it possible to meet the government's 2035-goals whilst continuously supplying district heating in Denmark at low costs and at a high security of supply? This semester project analyses the possibilities of replacing the in-renewable heat production from the coal-fired CHP production unit FV07 at Fynsværket, with large industrial heat pumps. When using heat pumps as the only supply unit, regulatory energy is required to maintain the security of supply. This project analyses the possibilities of using a heat storage facility to supply the district heating in times where the electricity price is _ high. To analyse the scenario, a MATLAB model is set up, minimising the hourly production costs and determining the minimum heat pump capacity and storage capacity needed to meet the demand in Fjernvarme Fyn's supply area. Legislative and financial aspects of shutting down CHP plants and integrating heat pumps are considered. As the district heating production becomes reliant on the electricity production, the overall consumer costs in a heat pump based network will fluctuate with respect to the Nordpool spot price. This could set the foundation for making the district heating sector hourly charged, allocating the demand and lowering the price. Furthermore, the model concludes that the overall costs in the heat pump scenario becomes significantly lower than in the current network, as the fuel costs, including the CO2-quotas, are eliminated.

Mecánica V. tarea 2

With rapid electrification of transportation , it is becoming increasingly important to have a comprehensive understanding of criteria used in motor selection.For that design and comparative evaluation of interior permanent magnet synchronous motor ,induction motor and switched reluctance motor are needed.A fast finite element analysis (FEA) modeling approach is addressed for induction motor design.Optimal turn off and turn on angles with current chopping control and angular position control are found for Switched Reluctance Motors (SRM).Noise Vibration and Harshness (NVH) analysis are done using workbench ANSYS analysis.Simulation and analytical results show that each motor topology demonstrates its own unique characteristics for Electric Vehicle / Hybrid Electric Vehicle.Each motor's highest efficiency is located at different torque-speed regions for the criteria defined.Stator geometry ,pole/slot combination and control strategy differentiate Noise Vibration and Harshness performance.

ERCESI Weekly Report template.

This simulation plan aims to explain and document all steps to be taken in the simulation analysis of the Fokker-100 case. This case is the scenario in which the aircraft touches the ground during landing, introducing loads on the landing gear. The landing gear consists of 2 rear gears around mid-span and one in the front. Furthermore, the pilot uses the rudder which induces a lateral force on the tail. As stated in the assignment, it is required to find the maximum normal stress and location of this in the fuselage, the maximum shear stress and its location in the fuselage, and the maximum shear flow in the frames that introduce the loads from the landing gears into the fuselage.

Se calculó la eficiencia real y de Carnot de un Aparato de Eficiencia Térmica (Model TD-8564).

We describe computer experiments suggesting that there is an infinite family L of Riemann zeta cycles Λ of each size L = 1, 2, 3, ....

O filme O Congresso Futurista foi baseado na obra O Congresso Futurológico de Stanislav Lem. O filme possue partes em live-action e outras em animação. Ele conta a história de uma atriz que recebeu uma proposta para assinar um contrato no qual ela concordava em ter sua imagem digitalizada para um com- putador. Anos depois ela retorna ao estúdio para participar de um congresso e renovar a assinatura do contrato. E neste congresso ela se depara com a atual situação cinematográfica.