Time filter

Source Type

Kempten (Allgau), Germany

The Kempten University of Applied science or Hochschule Kempten is a university of applied science in Kempten im Allgäu, Germany. Wikipedia.

Gonzalez-Salazar M.A.,University of Ferrara | Morini M.,University of Parma | Pinelli M.,University of Ferrara | Spina P.R.,University of Ferrara | And 3 more authors.
Renewable Energy | Year: 2014

This paper presents a novel method to estimate the future biomass energy potential in countries with domestic markets unable to influence international markets. As a study case, the biomass energy potential in Colombia is estimated for the period 2010-2030.The prediction model is a scenario-based optimization algorithm that maximizes the yearly profit of locally producing and importing commodities in a country subject to certain constraints (domestic demand, limited area, etc.) as well as to demographic, macroeconomic and market data (e.g. domestic and international prices of commodities). The bioenergy potential associated to the production of commodities is calculated according to a methodology presented by the same authors. In order to provide a modeling framework consistent with other state-of-the-art projections, global scenarios for analysis are selected from the literature rather than formulated. Selected global scenarios highlight the influence of global biofuel use on agricultural prices, production and demand.Results predict a theoretical bioenergy potential in Colombia 56%-69% larger in 2030 than in 2010 (1.31-1.41EJ). A sensitivity analysis shows that while a higher global biofuel use leads to a higher local bioenergy potential, its influence is less pronounced than that of agricultural yields, demand and specific energy of biomass resources. © 2014 Elsevier Ltd.

Vollrath J.,Kempten University of Applied Sciences
IEEE Global Engineering Education Conference, EDUCON | Year: 2015

An open online electrical engineering automatic task generation tool with minimum hardware requirements and programming effort is presented. This system can be run on portable Linux access points with php or on a linux web server. Users can do the tasks with handheld devices or PCs also as live feedback system. A novel feature is a pre task submission userid management system allowing open access to all ecercises and selected evaluation of results. Results of use for exercises in a basic electrical engineering class are presented. The openness of the system allows reusability, customization and easy task creation in HTML and evaluation. Data analysis gives professor feedback about proficiency of students. © 2015 IEEE.

Klemenc J.,University of Ljubljana | Rupp A.,Kempten University of Applied Sciences | Fajdiga M.,University of Ljubljana
Engineering with Computers | Year: 2011

From an engineering point of view, church bells are structures that, during ringing, are exposed to severe loading conditions. They are damaged due to material wear, fatigue loading, material deficiencies, different clapper-to-bell layouts, ringing conditions, etc. To get an insight into the wear-related damage of bells, experimental investigations and numerical simulations of the local contact between the clapper and the bell were carried out as part of the activities of an EU-funded project called Maintenance and Protection of Bells. In order to make a full-scale comparison between the measured and simulated results a simplified model was set up. In this model the clapper was replaced by a cylinder with a rounded tip that was dropped against a block representing the bell wall. The aim of the simplified model was to study the impact phenomenon in a controlled way and to adapt the numerical model for simulating the local contact. In the article the synthesis of a finite-element model for simulating the cylinder-drop test is presented. The results of the finite-element simulations of repetitive cylinder drops are compared to the data that were measured in the laboratory. The effects of the cylinder material, the cylinder radius and the drop height of the cylinder on the local elastic-plastic behaviour of the cylinder and the block are also presented and discussed. © 2010 Springer-Verlag London Limited.

Vollrath J.,Kempten University of Applied Sciences
IEEE Global Engineering Education Conference, EDUCON | Year: 2013

No cost software tools and low cost measurement equipment enables improved teaching of circuit design. This paper presents results incorporating models, simulation and measurement together in teaching and laboratory. Comparison of circuit equations with measurement and simulation data addresses different learning styles and promotes advance in reflective judgment stages. It is closer to industrial work style and gives the student a feel for variations and accuracy in circuit design and measurement. A low cost electrical laboratory board (Electronic Explorer), a circuit simulator (LTSPICE) and a spreadsheet program can be used during lecture, laboratory and at home to align results and motivate students for a deep learning approach. This paper presents necessary modification for lecture and laboratory and looks at the results using these tools. © 2013 IEEE.

Vollrath J.,Kempten University of Applied Sciences
IEEE Global Engineering Education Conference, EDUCON | Year: 2014

Outcomes based teaching and learning requires monitoring of teaching and students learning. So far teaching can be monitored by video, document camera or screen recordings or by a coach. This creates hard to edit video content. Also static questionnaires are used for outcome monitoring and problem solving purposes. This paper presents a new approach using dynamic HTML5 web pages with JavaScript enabling creating editable and searchable open source content on the fly in real time during lecture. Data can easily be transferred from the web page to data processing tools. This allows explorations by students. Based on this automated problem generation and solving is shown in an example of root mean square voltage calculation. Results can be sent to a server to implement a live feedback system. All data and programs are embedded in the web document. Therefore it is much easier to reuse content, evaluate style and improve lectures increasing efficiency of teaching. © 2014 IEEE.

Discover hidden collaborations