Prof. Dr. Yasin Şöhret: Advancing Research in Sustainable Aviation

Explore how Prof. Dr. Yasin Şöhret approaches sustainable aviation through propulsion, energy efficiency, thermodynamics and environmental research.

Aviation is built around a demanding engineering balance. Aircraft must deliver performance, reliability and operational efficiency, yet the industry is also under growing pressure to use resources more intelligently and reduce its environmental footprint. That challenge cannot be addressed from a single angle. Engines, thermodynamic efficiency, fuel use, emissions and operating conditions all belong to the same equation.

This interconnected view sits at the heart of the academic work of Prof. Dr. Yasin Şöhret. A Turkish engineer, scientist, academic and author, Şöhret works across aircraft propulsion, thermodynamics, energy and environmental performance, with a particular emphasis on practical approaches that can support a more sustainable aviation sector.

Who Is Prof. Dr. Yasin Şöhret?

Prof. Dr. Yasin Şöhret is an academic whose research brings together aerospace engineering, sustainability, propulsion systems, combustion and thermodynamics. His current Google Scholar profile identifies Aerospace, Sustainability, Combustion, Propulsion Systems and Thermodynamics among his principal research fields.

Rather than treating these subjects as separate technical disciplines, his work considers how they interact within real engineering systems. That distinction matters. When an aircraft engine consumes fuel, for example, the question is not simply how much energy enters the system. Engineers also need to understand where useful energy is lost, how efficiently that energy is converted into performance and what environmental consequences follow.

This systems-level perspective gives Şöhret’s work a natural place within modern aviation research, where technical performance increasingly needs to be assessed alongside energy efficiency and environmental responsibility.

From Engineering to Aviation Research

Şöhret’s academic background combines mechanical engineering with aircraft-focused research. Springer records associated with his earlier academic work note that he graduated from the Mechanical Engineering Department of Eskişehir Osmangazi University in 2010 and later completed doctoral research in Aircraft Maintenance at Anadolu University. His research has included gas turbine engine measurements, combustion, fuels and energy and exergy analyses of thermal systems.

That combination is significant because aviation sustainability is not merely an environmental subject. It is also a deeply technical engineering problem. Improvements often emerge from understanding machines more precisely: how energy flows through them, where inefficiencies occur and which operating parameters influence both performance and environmental impact.

Key Areas of Academic Expertise

Şöhret’s official academic website groups his research focus into three broad areas: Sustainable Aviation, Propulsion & Thermodynamics, and Energy & Environment. The site describes a systems-oriented approach in which energy, environmental considerations and sustainability are evaluated together rather than in isolation.

These areas naturally overlap. Aircraft propulsion determines much of an aircraft’s energy demand. Thermodynamics helps explain the efficiency and limitations of propulsion systems. Emissions reveal part of the environmental consequence. Sustainability then asks the broader question: how might all these elements be improved without losing sight of safety, performance and real-world feasibility?

Rethinking Aviation Through Sustainability

For many years, aviation performance was commonly discussed in terms of speed, range, payload, reliability or fuel consumption. Those metrics remain essential, of course. But today a meaningful technical assessment increasingly needs another layer: environmental performance.

This changes how engineers frame the problem. Lower fuel consumption may improve operating economics, but it can also influence emissions. Better thermodynamic efficiency may reduce energy losses. Alternative fuels may alter combustion behaviour as well as lifecycle environmental impacts. One change can affect several parts of the system at once.

That is why sustainable aviation is best understood as a multidisciplinary engineering challenge rather than a single technology waiting to be discovered.

Why Energy Efficiency Matters in Aviation

Aircraft carry their energy source with them. Every unnecessary kilogram and every avoidable inefficiency matters, particularly when multiplied across flight hours and repeated operations. Improving energy use therefore has consequences that go beyond a laboratory efficiency figure.

Engineers can examine how efficiently fuel energy is converted into useful output, where losses occur and whether different operating conditions shift that balance. In our view, this is one of the most practical aspects of sustainability research: before deciding what should change, you first need to know where the losses actually are.

Şöhret’s research profile reflects precisely this relationship between aircraft-engine energy, exergy, emissions and performance limits.

Connecting Aircraft Performance and Environmental Impact

An aircraft engine cannot realistically be judged by a single number. Fuel consumption tells one part of the story. Emissions tell another. Thermal efficiency adds another layer, while flight conditions can change how the same engine behaves in practice.

For researchers, the interesting part lies in bringing those measurements together. When performance and environmental indicators are assessed within the same framework, it becomes easier to identify trade-offs that might otherwise remain hidden.

This is particularly relevant when discussing greener aircraft technologies. A solution that performs well according to one environmental metric may create compromises somewhere else. Robust engineering analysis helps reveal those compromises rather than gloss over them.

Sustainable Aviation as a Research Priority

The term sustainability can sound broad, even vague, when used without technical context. In aerospace research it becomes much more meaningful when connected to measurable variables: energy consumption, propulsion efficiency, emissions, resource use, operational performance and lifecycle effects.

For Şöhret, sustainable aviation sits within this measurable engineering framework. His official research profile connects the subject with energy-efficient and lower-impact aviation technologies and operations, alongside studies of propulsion, thermodynamics and environmental performance.

He has also been involved in academic publishing directly related to the field. Springer lists Yasin Sohret among the editors of the 2019 book Sustainable Aviation, which addresses sustainable aviation methodologies, environmental impacts and sustainability education. He also co-authored its introductory chapter on the fundamentals of sustainability.

Aircraft Propulsion and Thermodynamic Performance

Propulsion is one of the most technically important areas in the sustainability discussion because an aircraft engine is where fuel, combustion, thermal processes and useful thrust meet.

Thermodynamics gives researchers a framework for examining those processes. It helps answer questions such as: How effectively is supplied energy being converted? Where are the most significant losses occurring? How does the operating point influence efficiency? And could a different design or operating approach reduce those losses?

These questions do not automatically produce a greener aircraft. They do, however, create the analytical foundation needed to make better engineering decisions.

Energy, Exergy and Emissions Analysis

Energy analysis is useful, but energy alone does not describe the full quality of an energy conversion process. This is where exergy becomes particularly valuable.

In simplified terms, exergy analysis helps engineers evaluate how much useful work potential is available and how much of that potential is destroyed through irreversibilities within a system. Two processes might contain similar quantities of energy while offering very different opportunities for useful conversion.

For an aircraft engine or another thermal system, that perspective can reveal where improvement efforts might have the greatest value. Combined with emissions analysis, it also creates a more complete picture of technical and environmental performance.

Scientific Research for Greener Aircraft Technologies

There is no single route to lower-impact flight. Engine design, operational practices, fuels, materials, aircraft architecture and energy systems may all have roles to play. What matters is that proposed improvements can be tested against measurable performance criteria.

This is where academic research becomes especially valuable. It provides the methods needed to move discussions from assumptions to evidence.

Şöhret’s work offers a useful example. His official publication list includes a 2025 study examining the green performance limits of a cargo aircraft engine during flight through a thermo-environmental evaluation. The study’s subject itself illustrates the broader research approach: actual engine performance and environmental considerations can be evaluated together rather than treated as unrelated topics.

Evaluating the Environmental Performance of Aircraft Engines

Environmental performance is not simply a matter of measuring carbon dioxide. Aircraft propulsion involves combustion processes and multiple emission outputs, while the efficiency of the engine influences how much fuel is required to produce useful performance.

Researchers therefore need indicators that can place energy use, engine performance and environmental effects into context. Depending on the research question, these may involve fuel consumption, thermal efficiency, exergy efficiency, emission characteristics or combined sustainability metrics.

The value comes from comparison. Once engineers can quantify what is happening, they can evaluate alternative configurations, different operating conditions or future technologies on something stronger than intuition.

From Measurement to Measurable Environmental Improvement

It is tempting to describe sustainability in ambitious terms, but engineering usually progresses through much smaller steps. Measure. Compare. Find the losses. Test another approach. Measure again.

That process may not sound dramatic, yet it is exactly how credible technical improvement tends to happen.

For aviation, even incremental advances in propulsion efficiency or operational performance can become meaningful when considered across fleets and many thousands of flight cycles. Still, each claimed improvement has to be evaluated in context. Better performance in one metric does not necessarily mean a solution is universally more sustainable.

Why Life-Cycle Thinking Matters

Sustainability becomes much harder to assess when the boundaries of the analysis expand. A technology may reduce an impact during flight while requiring more energy or resources elsewhere. A fuel may behave differently during combustion but also have upstream production and distribution impacts.

Life-cycle thinking encourages researchers to avoid focusing too narrowly on a single stage. Şöhret’s official research profile explicitly places resource efficiency, life-cycle thinking and environmental-performance solutions within his Energy & Environment research focus.

This broader perspective is important because aircraft are complex systems supported by equally complex energy and supply infrastructures. Sustainable engineering decisions need to account for those connections whenever reliable data allows it.

The Role of Research in the Future of Aviation

The future of flight will almost certainly involve more than one pathway. More efficient aircraft engines, improved operations, alternative fuels, electrification in appropriate applications and new aircraft architectures are all areas being investigated across the industry and academic community.

What should not change is the need for measurement. Any technology promoted as greener needs to be examined carefully, with performance boundaries and trade-offs made visible.

Academic work in thermodynamics, propulsion and environmental analysis can help build that evidence base. It enables researchers and engineers to ask better questions before reaching conclusions: Where is energy being lost? Which emissions are affected? Does an improvement remain meaningful outside a laboratory setting? What happens when the wider system is considered?

Prof. Dr. Yasin Şöhret’s Perspective on the Future of Aviation

Şöhret’s body of work positions sustainability not as a separate concern added to aviation engineering, but as something that can be investigated through the engineering fundamentals themselves. Propulsion performance, thermodynamics, combustion, energy use and environmental impact are closely connected; studying them together can reveal opportunities that a narrower analysis might miss.

That multidisciplinary approach is also visible across his published work and academic activity. From research on gas turbine engines and thermal-system analyses to editorial work on sustainable aviation, the recurring theme is measurable performance rather than broad environmental claims.

For researchers, engineers, students or industry professionals interested in exploring these research areas and related academic publications in greater detail, the official profile of Prof. Dr. Yasin Şöhret provides a direct overview of his work in aviation, energy and the environment.

Frequently Asked Questions About Sustainable Aviation and Yasin Şöhret

Who is Prof. Dr. Yasin Şöhret?

Prof. Dr. Yasin Şöhret is a Turkish engineer, scientist, academic and author whose research covers aircraft propulsion, thermodynamics, energy and environmental performance. His academic interests also include sustainability, combustion and propulsion systems.

What does Yasin Şöhret research?

His current research profile is centred on three interconnected areas: sustainable aviation, propulsion and thermodynamics, and energy and environment. His work considers subjects including aircraft-engine energy performance, exergy, emissions, resource efficiency and environmental assessment.

What is sustainable aviation?

Sustainable aviation refers broadly to efforts to reduce aviation’s environmental and resource impacts while maintaining the safety, functionality and performance required from air transportation. It can involve aircraft technology, propulsion efficiency, fuel choices, operations, infrastructure and broader lifecycle considerations.

Why is aircraft propulsion important for sustainable aviation?

Propulsion systems convert fuel or another energy source into the thrust needed for flight. Their efficiency therefore has a direct relationship with energy consumption and many operational emissions. Improving propulsion performance can be one component of reducing aviation’s overall environmental impact.

What is exergy analysis in aircraft engines?

Exergy analysis examines the useful work potential of energy and identifies where that potential is destroyed because of thermodynamic irreversibilities. In aircraft-engine research, it can help identify which components or processes contain significant opportunities for efficiency improvement.

How is thermodynamics related to aviation sustainability?

Thermodynamics governs the energy-conversion processes that take place in aircraft propulsion systems. By analysing temperatures, pressures, heat transfer, combustion and efficiency, researchers can better understand where energy losses occur and how engine performance might be improved.

What is the relationship between fuel efficiency and aircraft emissions?

Fuel consumption and emissions are closely connected, although the relationship is not identical for every pollutant or operating condition. Reducing the amount of fuel needed for a given mission can lower certain emissions, but engineers still need detailed analysis to understand the complete environmental effect.

Has Yasin Şöhret published work about sustainable aviation?

Yes. Springer lists Yasin Sohret as one of the editors of the 2019 academic book Sustainable Aviation, and he co-authored its chapter on the fundamentals of sustainability. Springer also lists him as an editor of the earlier volume Advances in Sustainable Aviation.

What does environmental performance mean in aviation?

Environmental performance describes how an aviation technology or operation performs against relevant environmental indicators. Depending on the study, researchers may consider fuel consumption, emissions, energy efficiency, resource use or broader lifecycle impacts rather than relying on a single measure.

Can more efficient aircraft engines make aviation more sustainable?

Greater engine efficiency can contribute to lower fuel demand and improved energy performance, so it is an important part of the sustainability challenge. Still, aircraft sustainability is broader than engine efficiency alone. Operations, fuel production, aircraft design, infrastructure and lifecycle impacts also matter.

Why are energy and exergy analyses often used together?

Energy analysis shows how energy enters, leaves and moves through a system, while exergy analysis helps reveal the quality and useful potential of that energy. Using both can give researchers a clearer understanding of where inefficiencies occur and where engineering improvements may be most valuable.

What is meant by greener aviation?

Greener aviation generally describes efforts to reduce the environmental burden associated with air transport. In serious engineering work, however, the phrase needs measurable context. Fuel use, emissions, propulsion efficiency, resource requirements and lifecycle effects are among the factors that may need to be assessed before calling one approach greener than another.