World's Best Scientists 2026 revealed!
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Engineering and Technology
Greece
2026

D-Index & Metrics

Engineering and Technology

D-Index
69
Citations
16545
World Ranking
1143
National Ranking
3

Research.com Recognitions

  • 2026 - Research.com Engineering and Technology in Greece Leader Award
  • 2025 - Research.com Engineering and Technology in Greece Leader Award

Overview

What is he best known for?

The fields of study he is best known for:

  • Thermodynamics
  • Internal combustion engine
  • Diesel engine

Diesel fuel, Diesel engine, Waste management, Diesel exhaust and Internal combustion engine are his primary areas of study. His Diesel fuel research incorporates elements of Diesel cycle, Exhaust gas recirculation and Homogeneous charge compression ignition. The Diesel engine study combines topics in areas such as Soot, Conical surface and Fuel injection.

The concepts of his Waste management study are interwoven with issues in NOx and Carbureted compression ignition model engine. The study incorporates disciplines such as Diesel particulate filter and Winter diesel fuel in addition to Diesel exhaust. His Internal combustion engine study combines topics in areas such as Fuel mass fraction, Exhaust gas and Combustion chamber.

His most cited work include:

  • Comparative performance and emissions study of a direct injection Diesel engine using blends of Diesel fuel with vegetable oils or bio-diesels of various origins (495 citations)
  • Effects of butanol–diesel fuel blends on the performance and emissions of a high-speed DI diesel engine (417 citations)
  • Emission characteristics of high speed, dual fuel, compression ignition engine operating in a wide range of natural gas/diesel fuel proportions (270 citations)

What are the main themes of his work throughout his whole career to date?

His primary areas of study are Diesel engine, Diesel fuel, Internal combustion engine, Waste management and Automotive engineering. His studies deal with areas such as Mechanical engineering, Diesel cycle, Homogeneous charge compression ignition, Combustion chamber and Turbocharger as well as Diesel engine. His Diesel fuel research is multidisciplinary, incorporating elements of Fuel injection and Exhaust gas recirculation.

His Internal combustion engine research includes themes of Fuel mass fraction and Exhaust gas. His Waste management research integrates issues from NOx and Fuel efficiency. In his research on the topic of Automotive engineering, Meteorology is strongly related with Nuclear engineering.

He most often published in these fields:

  • Diesel engine (68.25%)
  • Diesel fuel (50.79%)
  • Internal combustion engine (31.75%)

What were the highlights of his more recent work (between 2015-2020)?

  • Diesel fuel (50.79%)
  • Waste management (30.95%)
  • Diesel engine (68.25%)

In recent papers he was focusing on the following fields of study:

His scientific interests lie mostly in Diesel fuel, Waste management, Diesel engine, Biofuel and Nuclear engineering. Constantine D. Rakopoulos combines subjects such as Oxygen enrichment, Exhaust gas recirculation and Natural gas with his study of Diesel fuel. Constantine D. Rakopoulos mostly deals with Diesel exhaust in his studies of Waste management.

Constantine D. Rakopoulos has researched Diesel engine in several fields, including Emulsion, Smoke and Turbocharger. Constantine D. Rakopoulos usually deals with Nuclear engineering and limits it to topics linked to Computational fluid dynamics and Combustion analysis, Mechanical engineering and Spark plug. Constantine D. Rakopoulos interconnects Fuel oil and Alcohol fuel in the investigation of issues within Winter diesel fuel.

Between 2015 and 2020, his most popular works were:

  • Butanol or DEE blends with either straight vegetable oil or biodiesel excluding fossil fuel: Comparative effects on diesel engine combustion attributes, cyclic variability and regulated emissions trade-off (89 citations)
  • Combustion noise radiation during dynamic diesel engine operation including effects of various biofuel blends: A review (41 citations)
  • Investigating the EGR rate and temperature impact on diesel engine combustion and emissions under various injection timings and loads by comprehensive two-zone modeling (40 citations)

In his most recent research, the most cited papers focused on:

  • Thermodynamics
  • Mechanical engineering
  • Internal combustion engine

His primary scientific interests are in Diesel engine, Diesel fuel, Waste management, Smoke and Biofuel. His biological study spans a wide range of topics, including Ignition system, NOx and Turbocharger. His work in NOx is not limited to one particular discipline; it also encompasses Combustion chamber.

His Diesel fuel research is multidisciplinary, incorporating perspectives in Injector and Transient. His Injector research includes elements of Nuclear engineering, Exhaust gas recirculation, Cylinder contents and Soot. His Transient research is multidisciplinary, relying on both Emphasis, Automotive engineering, Naturally aspirated engine and Cylinder.

Best Publications

  • Comparative performance and emissions study of a direct injection Diesel engine using blends of Diesel fuel with vegetable oils or bio-diesels of various origins

    C.D. Rakopoulos;K.A. Antonopoulos;D.C. Rakopoulos;D.T. Hountalas

  • Effects of butanol–diesel fuel blends on the performance and emissions of a high-speed DI diesel engine

    D.C. Rakopoulos;C.D. Rakopoulos;E.G. Giakoumis;A.M. Dimaratos

  • Second-law analyses applied to internal combustion engines operation

    C.D. Rakopoulos;E.G. Giakoumis

  • Emission characteristics of high speed, dual fuel, compression ignition engine operating in a wide range of natural gas/diesel fuel proportions

    R.G. Papagiannakis;C.D. Rakopoulos;D.T. Hountalas;D.C. Rakopoulos

  • Effects of ethanol-diesel fuel blends on the performance and exhaust emissions of heavy duty DI diesel engine

    D.C. Rakopoulos;C.D. Rakopoulos;E.C. Kakaras;E.G. Giakoumis

  • Combustion heat release analysis of ethanol or n-butanol diesel fuel blends in heavy-duty DI diesel engine

    D.C. Rakopoulos;C.D. Rakopoulos;R.G. Papagiannakis;D.C. Kyritsis

  • Influence of properties of various common bio-fuels on the combustion and emission characteristics of high-speed DI (direct injection) diesel engine: Vegetable oil, bio-diesel, ethanol, n-butanol, diethyl ether

    Dimitrios C. Rakopoulos;Constantine D. Rakopoulos;Evangelos G. Giakoumis;Roussos G. Papagiannakis

  • Investigation of the performance and emissions of bus engine operating on butanol/diesel fuel blends

    D.C. Rakopoulos;C.D. Rakopoulos;D.T. Hountalas;E.C. Kakaras

  • Experimental heat release analysis and emissions of a HSDI diesel engine fueled with ethanol-diesel fuel blends

    C.D. Rakopoulos;K.A. Antonopoulos;D.C. Rakopoulos

  • Exhaust emissions of diesel engines operating under transient conditions with biodiesel fuel blends

    Evangelos G. Giakoumis;Constantine D. Rakopoulos;Athanasios M. Dimaratos;Dimitrios C. Rakopoulos

  • Exhaust emissions with ethanol or n-butanol diesel fuel blends during transient operation: A review

    Evangelos G. Giakoumis;Constantine D. Rakopoulos;Athanasios M. Dimaratos;Dimitrios C. Rakopoulos

  • Performance and emissions of bus engine using blends of diesel fuel with bio-diesel of sunflower or cottonseed oils derived from Greek feedstock

    C.D. Rakopoulos;D.C. Rakopoulos;D.T. Hountalas;E.G. Giakoumis

  • Characteristics of performance and emissions in high-speed direct injection diesel engine fueled with diethyl ether/diesel fuel blends

    Dimitrios C. Rakopoulos;Constantine D. Rakopoulos;Evangelos G. Giakoumis;Athanasios M. Dimaratos

  • Impact of properties of vegetable oil, bio-diesel, ethanol and n-butanol on the combustion and emissions of turbocharged HDDI diesel engine operating under steady and transient conditions

    Dimitrios C. Rakopoulos;Constantine D. Rakopoulos;Evangelos G. Giakoumis

  • Study of turbocharged diesel engine operation, pollutant emissions and combustion noise radiation during starting with bio-diesel or n-butanol diesel fuel blends

    C.D. Rakopoulos;A.M. Dimaratos;E.G. Giakoumis;D.C. Rakopoulos

  • Comparative second-law analysis of internal combustion engine operation for methane, methanol, and dodecane fuels

    C.D Rakopoulos;D.C Kyritsis

  • Investigating the emissions during acceleration of a turbocharged diesel engine operating with bio-diesel or n-butanol diesel fuel blends

    Constantine D. Rakopoulos;Athanasios M. Dimaratos;Evangelos G. Giakoumis;Dimitrios C. Rakopoulos

  • Theoretical study of the effects of pilot fuel quantity and its injection timing on the performance and emissions of a dual fuel diesel engine

    R.G. Papagiannakis;D.T. Hountalas;C.D. Rakopoulos

  • Multi-zone modeling of combustion and emissions formation in DI diesel engine operating on ethanol–diesel fuel blends

    C.D. Rakopoulos;K.A. Antonopoulos;D.C. Rakopoulos;D.T. Hountalas

  • Validation and sensitivity analysis of a two zone Diesel engine model for combustion and emissions prediction

    C.D Rakopoulos;D.C Rakopoulos;E.G Giakoumis;D.C Kyritsis

Frequent Co-Authors

Evangelos G. Giakoumis
Evangelos G. Giakoumis National Technical University of Athens
Dimitrios C. Rakopoulos
Dimitrios C. Rakopoulos National Technical University of Athens
Dimitrios T. Hountalas
Dimitrios T. Hountalas National Technical University of Athens
George Kosmadakis
George Kosmadakis National Technical University of Athens
Emmanuel Kakaras
Emmanuel Kakaras National Technical University of Athens
George Tsatsaronis
George Tsatsaronis Technical University of Berlin
Panagiotis Grammelis
Panagiotis Grammelis Centre for Research and Technology Hellas
Sotirios Karellas
Sotirios Karellas National Technical University of Athens
Yiannis A. Levendis
Yiannis A. Levendis Northeastern University

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