Automatic order reduction of thermo-electric model for micro-ignition unit

2003 ◽  
Author(s):  
T. Bechtold ◽  
E.B. Rudnyi ◽  
J.G. Korvink
Keyword(s):  
Order Reduction ◽  
Thermo Electric ◽  
Electric Model

scholarly journals Experimental Validation of a Thermo-Electric Model of the Photovoltaic Module under Outdoor Conditions

2021 ◽  
Vol 11 (11) ◽  
pp. 5287
Author(s):  
Klemen Sredenšek ◽  
Bojan Štumberger ◽  
Miralem Hadžiselimović ◽  
Sebastijan Seme ◽  
Klemen Deželak
Keyword(s):  
Output Power ◽  
Operating Temperature ◽  
Weather Conditions ◽  
Absolute Error ◽  
Primary Objective ◽  
Photovoltaic Module ◽  
Energy Technology ◽  
Thermo Electric ◽  
Electric Model ◽  
Pv Module

An operating temperature of the photovoltaic (PV) module greatly affects performance and its lifetime. Therefore, it is essential to evaluate operating temperature of the photovoltaic module in different weather conditions and how it affects its performance. The primary objective of this paper is to present a dynamic thermo-electric model for determining the temperature and output power of the photovoltaic module. The presented model is validated with field measurement at the Institute of Energy Technology, Faculty of Energy Technology, University of Maribor, Slovenia. The presented model was compared with other models in different weather conditions, such as clear, cloudy and overcast. The evaluation was performed for the operating temperature and output power of the photovoltaic module using Root-Mean-Square-Error (RMSE) and Mean-Absolute-Error (MAE). The average RMSE and MAE values are 1.75 °C and 1.14 °C for the thermal part and 20.34 W and 10.97 W for the electrical part.

Thermo-electric simulation of battery-modules with reduced order modelling of linear electrical components

2017 ◽  
Vol 36 (5) ◽  
pp. 1488-1500 ◽  
Author(s):  
Franz Pichler ◽  
Niels Koester ◽  
Alexander Thaler
Keyword(s):  
Model Order Reduction ◽  
Order Reduction ◽  
Computational Effort ◽  
Basis Functions ◽  
Thermal Design ◽  
Thermo Electric ◽  
Model Order ◽  
Content Type ◽  
Non Linear ◽  
Electrical Components

Purpose This paper aims to present a fully coupled thermo-electrical finite-element battery model with an applied model-order reduction. The model is used to analyse the thermal design of battery modules during typical drive-cycles of electric vehicles. Design/methodology/approach A model-order reduction is applied, in which the electrical linear bus-bars are analysed in an a-priori step. For these bus-bars, special distributed basis-functions are computed, which make the solution of differential Ohm's law unnecessary during the transient simulation. Furthermore, the distributed basis-functions are used to strongly couple the non-linear battery models, which reduces the iterations needed to simulate them. Findings Altogether, this results in a fast simulation scheme for coupled linear and non-linear electrical components and their thermal behaviour. Originality/value The presented method delivers an innovative approach, on how to systematically minimize the computational effort in a system of linear and non-linear electrical components, while keeping the full three-dimensional information of the original problem.

scholarly journals A Conjugate Thermo-Electric Model for a Composite Medium

PLoS ONE ◽  
2014 ◽  
Vol 9 (5) ◽  
pp. e97895 ◽  
Author(s):  
Oscar Chávez ◽  
Francisco A. Godínez ◽  
Alberto Beltrán ◽  
Armando García ◽  
Roberto Zenit
Keyword(s):  
Composite Medium ◽  
Thermo Electric ◽  
Electric Model
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