- Building Energy and Comfort Optimization
- Corporate Governance and Management
- Integrated Energy Systems Optimization
- Modeling and Simulation Systems
- Digital Innovation in Industries
- Smart Grid Energy Management
- Wind and Air Flow Studies
- Simulation Techniques and Applications
- Energy Efficiency and Management
- Renewable Energy and Sustainability
- Distributed and Parallel Computing Systems
- Real-time simulation and control systems
- Urban Heat Island Mitigation
- Environmental Science and Technology
- Energy Load and Power Forecasting
- Marketing and Advertising Strategies
- Microgrid Control and Optimization
- Engineering and Materials Science Studies
- 3D Modeling in Geospatial Applications
- Energy, Environment, and Transportation Policies
- Computational Physics and Python Applications
- Green IT and Sustainability
- Hybrid Renewable Energy Systems
- Heart Rate Variability and Autonomic Control
- Greenhouse Technology and Climate Control
RWTH Aachen University
2014-2018
Moritz Klinik
2012
Deutsche Nationalbibliothek
2004
Justus-Liebig-Universität Gießen
2004
Springer Nature (Germany)
2004
Universität Hamburg
2004
University of Bayreuth
2004
Bielefeld University
2004
University of St. Gallen
2004
The energy supply of buildings in urban contexts is undergoing significant changes. increase renewable sources for electrical and thermal generation will require flexible secure systems. To reflect consider these changes systems buildings, dynamic simulation one key element. Sparse limited access to detailed building information as well computing time are challenges on urban-scale. In addition, data acquisition modelling performance (BPS) time-consuming error-prone. enable the use BPS...
Simulation and optimisation of district heating cooling networks requires efficient realistic models the individual network elements in order to correctly represent heat losses or gains, temperature propagation pressure drops. Due more recent thermal incorporating meshing decentralised cold sources, system often has deal with variable temperatures mass flow rates, reversal occurring frequently. This paper presents mathematical derivation software implementation Modelica a thermo-hydraulic...
This paper presents a framework for the optimal operation of data centers, leveraging their heating, ventilation, and air conditioning unit, delay-tolerant information technology workload battery storage system participating in demand response programs. In this context, an model predictive control based has been developed that guarantees reliable centers core activities. We derive modeling approach to represent dynamics subsystems validate it center test bed via practical experiments....
This paper describes the collaborative development of Annex 60 Modelica library, a free, open-source library for building and community energy systems.The is developed within project that conducted under umbrella International Energy Agency's in Buildings Communities Programme (IEA EBC).Our goal to develop distribute well documented, vetted validated serves as core future simulation programs can be integrated with existing well.The work brings together experts applications coordinates...
The design of decentralized energy conversion systems in smart residential microgrids is a challenging optimization problem due to the variety available generation and storage devices. Common measures reduce problem's size complexity are modeling accuracy, aggregate multiple loads or change temporal resolution. However, since these attempts alter consequently lead different solutions as intended, this paper presents analyses decomposition method for solving original iteratively. decomposed...
For the comparison; we set-up three test cases on a generic room and single family dwelling analysed surface temperatures; heat demands simulation times. The results favoured an outdoor radiation exchange model according to German Guideline VDI 6007 with modified parameter calculations. It includes important simplifications that lead short computing time while keeping sufficient accuracy. indoor modelling at constant linear approach significantly reduces without any major accuracy losses.
In the context of district energy systems, changes in a building's heat demand also affect efficiency whole heating network. We present an integral dynamic model network branch with three buildings. By comparing simulations reference case and retrofit scenario we show that reducing buildings' demands reduces mass flow rate branch. discuss effects this reduction on deduce district-level system perspective can lead to more comprehensive evaluations efforts.
This paper discusses design decisions for exporting Modelica thermofluid flow components as Functional Mockup Units.The purpose is to provide guidelines that will allow building energy simulation programs and HVAC equipment manufacturers effectively use FMUs modeling of systems.We an analysis direct input-output dependencies such discuss how these can lead algebraic loops are formed when connecting components.Based on this analysis, we recommendations increase the computing efficiency...
Despite the context of fast-changing energy systems that require flexibility and dynamic operation, stateof-the-art district heating models often rely on static analyses. To contribute towards advancing capabilities design for current future challenges, this paper presents a framework automating generation as well system models. illustrate application framework, we present case study in which developed automatically designs network 250 buildings using data input from OpenStreetMap generates...