Christian Klemm

ORCID: 0000-0003-0801-4178
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About
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Research Areas
  • Integrated Energy Systems Optimization
  • Global Energy and Sustainability Research
  • Building Energy and Comfort Optimization
  • Climate Change Policy and Economics
  • Environmental Impact and Sustainability
  • Smart Grid Energy Management
  • Geological Studies and Exploration
  • Reservoir Engineering and Simulation Methods
  • Energy Efficiency and Management
  • Medieval European History and Architecture
  • Digital Games and Media
  • Photovoltaic Systems and Sustainability
  • Libraries and Information Services
  • Sexuality, Behavior, and Technology
  • Impact of Technology on Adolescents
  • Fluid Dynamics and Turbulent Flows
  • Physics and Engineering Research Articles
  • Sustainability and Climate Change Governance
  • Historical Influence and Diplomacy
  • Combustion and flame dynamics
  • CO2 Sequestration and Geologic Interactions
  • Environmental Conservation and Management
  • Historical and Cultural Studies of Poland
  • Carbon Dioxide Capture Technologies
  • Turbomachinery Performance and Optimization

FH Münster
2020-2024

Europa-Universität Flensburg
2021-2024

Graz University of Technology
2023

Kreiskrankenhaus Gummersbach
2017

TH Köln - University of Applied Sciences
2017

Abstract Background Urban energy systems are responsible for 75% of the world’s consumption and 70% worldwide greenhouse gas emissions. Energy system models used to optimize, benchmark compare such with help sustainability indicators. We discuss several indicators their basic suitability response changing boundary conditions, structures reference values. The most suitable parameters applied four different supply scenarios a real-world urban system. Results There is number indicators, but not...

10.1186/s13705-021-00323-3 article EN cc-by Energy Sustainability and Society 2022-01-06

In the past decades, video games have grown from a niche market to one of major entertainment media, enticing millions players worldwide. When ethical aspects are being debated, discussion oftentimes revolves around effects their content, such as violence. This paper argues that game mechanics, reward mechanisms, should be considered well, these at core appeal games. We analyze dimension behavioral design present in Massively Multiplayer Online Role Playing Games (MMORPG's). Using framework...

10.1007/s10676-017-9416-6 article EN cc-by Ethics and Information Technology 2017-01-28

Local and regional energy systems are becoming increasingly entangled. Therefore, models for optimizing these more complex the required computing resources (run-time random access memory usage) increasing rapidly. The computational requirements can basically be reduced solver-based (mathematical optimization of solving process) or model-based (simplification real-world problem in model). This paper deals with identifying how multi-energy high spatial resolution change model complexity which...

10.1016/j.apenergy.2022.120574 article EN cc-by Applied Energy 2023-01-28

In Germany, the current sectoral urban planning often leads to inefficient use of resources, partly because municipalities lack integrated instruments and argumentation strength toward politics, investors, or citizens. The paper develops ResourcePlan as (i) legal (ii) a instrument support efficient resources in neighborhoods. integrative, multi-methodological approach addresses natural building infrastructural sectors water (storm- wastewater) management, construction maintenance buildings...

10.3390/su14031522 article EN Sustainability 2022-01-28

Klemm et al., (2023). The Spreadsheet Energy System Model Generator (SESMG): A tool for the optimization of urban energy systems. Journal Open Source Software, 8(89), 5519, https://doi.org/10.21105/joss.05519

10.21105/joss.05519 article EN cc-by The Journal of Open Source Software 2023-09-17

Heating networks are highly relevant for the achievement of climate protection goals urban energy systems. This is due to their high renewable potential combined with plant efficiency and utilization rates. For optimal integration sector coupling heating in holistic systems, open source system modeling tools recommended. In this contribution, two approaches (the “Spreadsheet Energy System Model Generator”-integrated DHNx-Python module (DHNx/SESMG) Thermos) theoretically compared, practically...

10.3390/en15218277 article EN cc-by Energies 2022-11-05

(1) The use of renewable energy for power and heat supply is one the strategies to reduce greenhouse gas emissions. As only 14% German households are supplied with energy, a shift necessary. This should be realized lowest possible environmental impact. paper assesses impacts changes in generation distribution, by integrating life cycle assessment (LCA) method into system models (ESM). (2) integrated LCA applied case study neighborhood Herne, (i) optimize supply, considering different...

10.3390/en15165900 article EN cc-by Energies 2022-08-15

10.5281/zenodo.8255616 article EN cc-by Zenodo (CERN European Organization for Nuclear Research) 2023-09-26

Abstract A turbine vane frame (TVF) is a component located in between the high-pressure and low-pressure of future aeroengines. It combines aerodynamic purposes center (TCF) stator row first stage one component. Further, it also used to house structural components instrumentation, guide oil pipes wires inner part engine. With usage TVF, size weight engine can be reduced, therefore, its efficiency increased. Combined with other technologies, this help reach goals roadmap demanded by Strategic...

10.1115/gt2023-103667 article EN 2023-06-26

This study identifies supply options for sustainable urban energy systems, which are robust to external system changes. A multi-criteria optimization model is used minimize greenhouse gas (GHG) emissions and financial costs of a reference system. Sensitivity analyses examine the impact changing boundary conditions related GHG emissions, prices, demands, population density. Options that align with both emission reduction changes called "no-regret" options. sensitive labeled as...

10.1016/j.scs.2024.105189 article EN cc-by Sustainable Cities and Society 2024-01-14
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