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THALER, S., URAN, C., PECNIK, M.
“AKKU 4 LIFE” - An Experimental Health Condition Diagnosis of Second-Life Lithium-Ion Batteries
KOMUNALNA ENERGETIKA / POWER ENGINERING, 115
In order to enable the reuse of a second hand battery a reliable assessment of their health status is necessary. For preselection in the recycling route very quick and meaningful status analyzes are required. This preselection whether total loss, alteration, rebuilding or reloading and ”Refreshing” is necessary, and is to take place via electronic analysis systems. The basis for this measurement system integration is to take place under the Device title ”Dynamic Battery Analyzer DBA” in this project.
THALER, S., HAUSER, R.
ENERGY STORAGE THROUGH THE USE OF PHASE CHANGE MATERIALS (PCM)
IMPLEMENTATION AND EVALUATION OF LATENT STORAGE TANKS FOR ECONOMICAL HEAT STORAGE
KOMUNALNA ENERGETIKA / POWER ENGINERING, 11
Due to fluctuating electricity networks (electricity generation from wind, photovoltaic...) it will be increasingly important in the future to perform network smoothing. This should be done on smart grids. Once electricity is not storable, it may be a good idea to produce heat at current excess and store it.
Currently, water is still considered as the most appropriate storage medium. Furthermore, there are also latent heat storage materials such as zeolite (only at high temperatures) or salt mixtures (e.g. sodium acetate) available. Also paraffin and other materials in which a phase change (liquid to solid) takes places are available. These stores have at present, however, the problem of heat conduction within the storage mass.
It is now scheduled to integrate suitable PCM-tanks into an existing heat pump system. The modified system should be able to store the excess energy and to recirculate it into the heating system. This should lead to an economically use of the heating pump and also to compensate the fluctuating power generation. As a significant parameter in this case the influence of the charging and discharging times is considered. The expected results should provide innovative heat storage methods to overcome these new challenge
THALER, S., HECHL, T., ZARBAKHSH, J.
ENERGY SAVINGS THROUGH THE USE OF BIOMIMETIC ARCHITECTURES
KOMUNALNA ENERGETIKA / POWER ENGINERING, 16
Absorbers in solar collectors are used to collect the heat from sunlight for heating and hot water production. The use of solar energy will continue to increase in the future due to the rising cost of fossil fuels such as oil and gas. The aim of this work is to optimize the pipework system in the absorber plate of a solar thermal collector in relation to uniform flow and a lower decrease in pressure for modern solar heating systems inspired by nature. The other parts of the collector like housing, insulation, and the transparent cover should be the same as in common flat plate collectors using the existing production equipment and maintaining the production line. It is essential to tag the problems of common solar panels and to define the parameters meaningful for the fluid mechanics evaluation.
The evaluation of different natural channel structures should help to find a suitable network with good characteristics in utilization and flow resistance. The chosen examples will be presented, simulated, and analyzed with appropriate software to demonstrate their flow characteristic. The resulting new pipework model will be integrated in the existing pipework design of the absorber to obtain the first bionic-optimized pipework design.
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