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Prof. Dr. Tobias Bader

  • Sustainable Energy Systems
  • Technology Management
  • Business Planning

Faculty of European Campus Rottal-Inn

Professors

Professor

AA 239

0991/3615-8834

consulting time

by appointment via E-mail (latest information regarding consultation hours in I-learn)

Sortierung:
Zeitschriftenartikel

  • N. Linda Moumakwa
  • A. Sadiq Mohammed
  • E. Olatunde Olakanmi
  • Tobias Bader
  • A. Gessesse

Sustainable surface modification of sorghum residue-based fiber reinforced polymer composites: Properties and adhesion mechanism

In: Cleaner Materials vol. 8 pg. 100189.

  • (2023)

    ISSN: 27723976

DOI: 10.1016/j.clema.2023.100189

Sorghum stalks and other agricultural residues in excess of farmers animal feed requirements are often burnt, contributing to environmental pollution. On the other hand, such residues could serve as useful sources of fibre with different applications. The aim of this study was to investigate agricultural residue-based fibres (ARFs), using sorghum stalks as a model, for use as reinforcements in recycled low-density polyethylene (rLDPE) for the manufacture of agricultural residue-based fibre reinforced polymer composites (ARFRPCs). Thermo-alkali and thermo-laccase fibre modification treatments were employed to improve the properties of the ARFRPCs. The thermal conductivity values of the ARFRPCs at 0.23 – 0.3 W/m‧k are higher than some commercially available insulators. Moreover, thermo-alkali reinforced ARFRPCs exhibited a tensile strength of 28.57 Mpa and improved microstructure/interfacial adhesion relative to intreated and thermo-laccase treated samples. The conclusion is that thermo-alkali reinforced ARFRPCs, which was treated for 10 days, be used for non-structural applications in buildings.
  • European Campus Rottal-Inn
  • NACHHALTIG
Zeitschriftenartikel

  • T. Seane
  • R. Samikannu
  • Tobias Bader

A review of modeling and simulation tools for microgrids based on solar photovoltaics

In: Frontiers in Energy Research vol. 10

  • (2022)

DOI: 10.3389/fenrg.2022.772561

Solar Photo Voltaic (PV) powered community microgrids are a promising sustainable solution for neighborhoods, residential quarters, and cities in sub-Saharan Africa (SSA) to meet their energy demands locally and to increase energy independence and resilience. This review provides a comprehensive study on the nature of solar PV community microgrids. Through their capacity to operate in both grid-connected and island modes, community microgrids improve utility system resiliency while also boosting energy security in local states and towns. The integration of solar PV microgrids with the electricity utility grid requires control strategies to facilitate the load sharing between distributed generation units, voltage and frequency control, as well as emergency islanding. Control strategies such as hierarchical control and droop are discussed in the review article. To identify the effectiveness of control strategies through system simulation, a review of various modeling designs of individual components in a solar PV microgrid system is discussed. The article goes on to talk about energy optimization approaches and their economic impact on microgrid systems. Finally, the review concludes with an overview of the technical challenges encountered in the integration of solar PV systems in microgrids.
  • European Campus Rottal-Inn
  • NACHHALTIG
Vortrag

  • Tobias Bader
  • K. Giffard
  • G. Beau

Sustainable Energy Supply in Southern Africa and its challenges

Technische Hochschule Ingolstadt

  • 21.04.2021 (2021)
  • European Campus Rottal-Inn
  • NACHHALTIG
Zeitschriftenartikel

  • K. Keisang
  • Tobias Bader
  • R. Samikannu

Review of Operation and Maintenance Methodologies for Solar Photovoltaic Microgrids

In: Frontiers in Energy Research vol. 9 pg. 1-15.

  • (2021)

DOI: 10.3389/fenrg.2021.730230

Global concerns and growth in electricity demand, especially for rural and remote settlements, has forced governments, scientists, engineers, and researchers to look for alternative solutions in the form of renewable energy sources. High global growth in solar energy technology applications has added more weight in operations and maintenance (O&M) of solar-photovoltaic (SPV) systems. SPV reliability and optimized system performance are key to ensuring success and continual adaptation of SPV technology. O&M plays a central role in ensuring sustainability and long-term availability throughout the operational lifetime of the elements of SPV systems whilst boosting confidence of ultimate consumers in solar energy. While appreciating that SPV installations intrinsically require minimal maintenance actions, the objective of this manuscript is hence to reaffirm the significance of O&M scheduling in SPV systems by reviewing the O&M approaches in SPV microgrid systems. Further discussions focus on the various maintenance strategies employed in the field with special emphasis on corrective, preventive, and predictive maintenance strategies. Because of the variation in the design and development procedures of SPV systems, there is lack of clear steps followed in the development of an O&M program for SPV systems and the evaluation of its performance. This manuscript serves to address this through a model for developing an O&M program and portrays the key elements for its success, including a management and execution approach for improved risk-return balance and savings from the O&M expenditure. Eventually, the three models of executing an O&M program (i.e., in-house O&M team, third party contract, or installation company) are analyzed.
  • European Campus Rottal-Inn
  • NACHHALTIG
Zeitschriftenartikel

  • N. Moumakwa
  • M. Mokoba
  • Tobias Bader
  • E. Olakanmi

Characterization of Chemically and Thermo-chemically Treated Water Reed and Mokolwane Palm Fibers

In: Journal of Natural Fibers pg. 1-16.

  • (2021)

    ISSN: 1544-0478

DOI: 10.1080/15440478.2021.1952141

Water reed (Phragmites spp.) and mokolwane palm (Hyphaene spp.) natural fibers, building materials indigenous to Botswana are potential reinforcement materials in manufacturing composites due to their desirable light weight, mechanical properties, and recyclable nature. Nevertheless, the surface modification mechanism and its effects on the quality characteristics of these fibers have not been explored. This study compares the impact of chemical and thermo-chemical surface treatments on the properties of the fibers. Furthermore, a suitable treatment method and fiber to produce natural fiber-reinforced polymer composites (NFRPCs) were identified. Thermo-chemical treatment is more effective in improving the thermal resistance and mechanical properties of the fibers relative to chemical treatment. Water reed fiber treated by 1.5 wt.% NaOH solution for 15 days followed by thermal treatment at 80°C for 24 hours is best for suitable for building insulation applications considering its quality characteristics (namely: tensile strength (76.41 MPa), CI (59.2%), CS (21.44 nm) and degradation temperature range of 288–598°C). Surface modification mechanism of the fibers by chemical treatment occurred via dissolution of hemicellulose which increased the interfibrillar region while the incorporation of thermal treatment further promoted the rupture of bonds existing between the cellulose and hemicellulose.
  • European Campus Rottal-Inn
  • NACHHALTIG
Zeitschriftenartikel

  • W. Zoerner
  • N. Mohamed
  • A. Zulu
  • Tobias Bader
  • T. Chifundo
  • B. Cuamba
  • C. Hilton

Meta-Profile and Competencies for Harmonisation of Higher Education in Renewable Energy in Southern Africa

In: Tuning Journal for Higher Education vol. 8 pg. 75-79.

  • (2020)
  • European Campus Rottal-Inn
  • NACHHALTIG
Vortrag

  • Tobias Bader

Potentiale für Solar Mini-grids in Botswana

Renewables Academy Berlin

  • 07.09.2020 (2020)
  • European Campus Rottal-Inn
  • NACHHALTIG
Vortrag

  • Tobias Bader

Solar Energy Technology Research, Development, and Innovation . Contribution for the Minister of Tertiary Education, Research, Science and Technology

Botswana

  • 11.08.2020 (2020)
  • European Campus Rottal-Inn
  • NACHHALTIG
Beitrag in Sammelwerk/Tagungsband

  • J. Michael
  • T. Schrag
  • Tobias Bader

Preservation methods for herbarium specimens in Botswana

  • (2019)
  • European Campus Rottal-Inn
  • NACHHALTIG
Vortrag

  • Tobias Bader

Promoting Energy Innovation: Case Study Botswana International University of Science and Technology

Gaborona, Botswana

  • 26.02.2019 (2019)
  • European Campus Rottal-Inn
  • NACHHALTIG
Beitrag in Sammelwerk/Tagungsband

  • A. Pugsley
  • R. Samikannu
  • M. Smyth
  • J. Parikh
  • Tobias Bader

SolaNetwork – Integrated and affordable solar energy access solutions for socioeconomically diverse rural communities in Botswana

  • (2019)
  • European Campus Rottal-Inn
  • NACHHALTIG
Beitrag in Sammelwerk/Tagungsband

  • K. Motladiile
  • M. Smyth
  • P. Adrian
  • J. Mondol
  • Tobias Bader

Energy requirement analysis for the design of solar photovoltaic micro-grids in Botswana - A study of Jamataka village

  • (2019)
  • European Campus Rottal-Inn
  • NACHHALTIG
Beitrag in Sammelwerk/Tagungsband

  • K. Rahube
  • T. Letshwenyo
  • B. Makatane
  • T. Mokoka
  • Tobias Bader

Analysis of energy consumption patterns in tourist lodges for improved energy efficiency – The case of Kwadiwa Lodge in Botswana

  • (2019)
  • European Campus Rottal-Inn
  • NACHHALTIG
Beitrag in Sammelwerk/Tagungsband

  • Tobias Bader

Status of Renewable Energy in Botswana: Framework, Trends & Potential

  • (2019)
  • European Campus Rottal-Inn
  • NACHHALTIG
Beitrag in Sammelwerk/Tagungsband

  • Tobias Bader

Climate-effective solar air-conditioning strategies for selected African climates

  • (2018)
  • European Campus Rottal-Inn
  • NACHHALTIG
Beitrag in Sammelwerk/Tagungsband

  • Tobias Bader

The role of university & industry partnerships in the transition to a sustainable and affordable energy system in Botswana

  • (2017)
  • European Campus Rottal-Inn
  • NACHHALTIG
Beitrag in Sammelwerk/Tagungsband

  • Tobias Bader

Solar Cooling and Air-Conditioning - Technology Overview & Global Perspectives

  • (2015)
  • European Campus Rottal-Inn
  • NACHHALTIG
Zeitschriftenartikel

  • Tobias Bader
  • S. Brandmayr
  • C. Trinkl
  • W. Zörner
  • V. Hanby

Climate Specific Design and Effectiveness of Solar DEC-systems: A Methodological Zoning Approach

In: Energy Procedia vol. 48 pg. 778-789.

  • (2014)

DOI: 10.1016/j.egypro.2014.02.090

The climate specific effectiveness of solar DEC-systems and relevant preferable adaptions of the system design have been so far predominantly analysed based on individual simulation for selected sites. In order to systematically deduce design-specific outline data for the application of the solar DEC-technology at climatically different sites a methodological zoning approach was further developed. A subsequent meteorological analysis for 17 sites mapping the world climate creates a transparent understanding on the activity of the specific system components. This results in a comprehension on the site-specific effectiveness of solar DEC-systems and provides insights on principally relevant and efficient system configurations.
  • European Campus Rottal-Inn
  • NACHHALTIG
Beitrag in Sammelwerk/Tagungsband

  • Tobias Bader
  • S. Brandmayr
  • W. Zörner
  • V. Hanby

Globale Anwendbarkeit solarer DEC-Systeme zur Klimatisierung: Untersuchung der Relevanz für klimatisch unterschiedliche Standorte

  • (2013)
  • European Campus Rottal-Inn
  • NACHHALTIG
Beitrag in Sammelwerk/Tagungsband

  • Tobias Bader
  • S. Brandmayr
  • C. Trinkl
  • W. Zoerner
  • V. Hanby

Global Applicability of Solar DEC-Systems: Basic Technology Effectiveness in Climatically Different Regions

pg. 176-181.

  • (2013)
  • European Campus Rottal-Inn
  • NACHHALTIG
Beitrag in Sammelwerk/Tagungsband

  • Tobias Bader
  • C. Trinkl
  • W. Zörner
  • V. Hanby

Betriebserfahrungen mit großen Kollektorfeldern zur solaren Klimatisierung

  • (2012)
  • European Campus Rottal-Inn
  • NACHHALTIG
Beitrag in Sammelwerk/Tagungsband

  • Tobias Bader
  • S. Frawley
  • C. Trinkl
  • W. Zörner
  • V. Hanby

Desiccant air-conditioning in an industrial application: optimisation approaches for solar-thermal integration and air-handling unit

Kassel

  • (2011)
  • European Campus Rottal-Inn
  • NACHHALTIG
Beitrag in Sammelwerk/Tagungsband

  • Tobias Bader
  • C. Trinkl
  • W. Zörner
  • V. Hanby

Component Analysis of a Solar-Driven DEC-System

pg. 329-334.

  • (2011)
  • European Campus Rottal-Inn
  • NACHHALTIG
Beitrag in Sammelwerk/Tagungsband

  • Tobias Bader
  • C. Trinkl
  • W. Zörner

In-Situ-Optimierung einer solarbetriebenen Klimatisierungsanlage im industriellen Einsatz

  • (2010)
  • European Campus Rottal-Inn
  • NACHHALTIG
Beitrag in Sammelwerk/Tagungsband

  • Tobias Bader
  • C. Trinkl
  • W. Zörner
  • V. Hanby

In-Situ Analysis and Operational Optimisation of a Solar-Driven DEC-System

  • (2010)
  • European Campus Rottal-Inn
  • NACHHALTIG
Beitrag in Sammelwerk/Tagungsband

  • Tobias Bader
  • M. Finkenzeller
  • C. Trinkl
  • W. Zörner

Feldtest-Messungen und Systemoptimierung an einer solarbetriebenen DEC-Klimatisierungsanlage im industriellen Einsatz

  • (2010)
  • European Campus Rottal-Inn
  • NACHHALTIG
Beitrag in Sammelwerk/Tagungsband

  • S. Brandmayr
  • Tobias Bader
  • W. Zörner
  • V. Hanby

Simulation of Thermosyphon Systems for Solar Domestic Hot Water Production

  • (2010)
  • European Campus Rottal-Inn
  • NACHHALTIG
Beitrag in Sammelwerk/Tagungsband

  • Tobias Bader
  • C. Trinkl
  • W. Zörner
  • V. Hanby

Solar-Driven Desiccant and Evaporative Cooling: Technology Overview and Operational Experiences

  • (2010)
  • European Campus Rottal-Inn
  • NACHHALTIG
Beitrag in Sammelwerk/Tagungsband

  • Tobias Bader
  • M. Finkenzeller
  • C. Trinkl
  • W. Zörner

In-Situ Measurements, Simulation and System Optimisation of a Solar-Driven DEC-System in an Industrial Environment

pg. 509-514.

  • (2009)
  • European Campus Rottal-Inn
  • NACHHALTIG

Vita

Professional Career

  • Professor, Technische Hochschule Deggendorf (since 2021)
  • Lecturer Mechanical, Energy and Industrial Engineering, Botswana International University of Science and Technology
  • Consultant GIZ, BMWi Renewable Energy Export Initiative, Subsahara Africa
  • Qualitätsmanager, Continental AG, Ingolstadt
  • Research Associate, Institute for new Energy Systems, Ingolstadt
  • Innovation Manager, Dräxlmaier Group, Vilsbiburg

Studies:

  • PhD in Mechanical Engineering, De Montfort University Leicester, United Kingdom (Dissertation: Solar desiccant evaporative cooling with multivalent use of solar thermal heat)
  • Zertifikat Hochschullehre Bayern, BayZiel Didaktikzentrum, Ingolstadt
  • Diplom-Wirtschaftsingenieur (FH), Technische Hochschule Ingolstadt