INSPIRE INSpiring Pressure gain combustion Integration, Research, and Education

ESR 13

Introduction and contact info:
Name: Abhishek Dubey
Work address: DIME, University of Genova, Via Montallegro 1,
16145 Genova, Italy

PhD project:

Title: Pressure gain combustion power plant analysis and cycle thermo economic optimization

The PhD research aims to understand the thermodynamic and economic performance of pressure-gain combustion gas turbines at the cycle level for land-based power generation applications. The research includes an analysis of cycle performance in open and combined cycle configuration, identification of the most promising layouts, development of blade cooling solutions, thermo-economic optimization of PGC powerplants and integration of PGC cycles with power-to-gas solutions for adaptability to renewable and clean fuels. The theoretical study is being performed using the two software tools developed by Thermochemical Power Group (TPG) at UNIGE, W-TEMP (Web-based Thermo-Economic Modular Program) and W-ECoMP (Web-based Economic Cogeneration Modular Program). The work will lead to the development of optimized PGC cycle layouts, benchmarked performance benefits, design guidelines and updated cost functions that will be critical in developing efficient and environmentally friendly PGC gas turbines for a sustainable future.

Supervisor: Prof. Alessandro Sorce

Mentor: Prof. Panagiotis Stathopoulos

Planned secondments:

  • TUB, Germany – 3 months
  • ZHAW, Switzerland – 2 months


Abhishek is an aerospace engineer from India. He obtained a Master's in aerospace propulsion from the Indian Institute of Technology Kanpur, India, in 2018 and subsequently worked at the Indian Institute of Science (IISc) Bangalore for three years before joining the INSPIRE program at the University of Genoa in January 2022. He has over five years of research experience in the field of gas turbine combustion, emission reduction technologies, laser diagnostics and the design of high-pressure optically accessible test rigs. He is passionate about developing more efficient and clean gas turbine technologies for propulsion and power generation.

Personal interests: Reading, astrophotography, astronomy, hiking

University Profile:

Research Group Profile:

Reserach highlights:


  • A comprehensive review of the blade cooling and turbine integration solutions was conducted to integrate PGC combustors with gas turbines. It was found that the high cooling requirements and losses due to pulsating PGC outflow could be addressed by implementing novel concepts such as propellant injection, pulse impingement cooling, steam cooling and ejectors.
  • A 0-D steady-state model of CVC was developed in WTEMP software, and the thermodynamic cycle analysis was conducted with two gas turbine layouts, a conventional layout and a novel layout that allows stoichiometric combustor operation and maximizes the pressure gain. Results quantified higher efficiency and specific work of the PGC cycle over Brayton and highlighted the detrimental impact of PGC combustor losses at the cycle level. Moreover, layout comparison showed that the novel layout with stoichiometric operation has higher efficiency than the conventional layout.
  • A techno-economic comparison of a hybrid PGC powerplant was performed with renewable solar photovoltaics at different hybridization levels using W-ECoMP software. Results highlighted increasing advantages of renewable solar in terms of costs and emissions with increasing solar generation. Additionally, the economic advantages of increasing fuel prices were also observed.


  • Analysis of PGC powerplant with various Power-to-Gas solutions.
  • Development of RDC model and combustor cooling models in WTEMP
  • Analysis of PGC combined cycle with different classes of bottoming cycles and heat recovery steam generator.


ESR1 – Choomanee Runnoo: Experimental investigation of Constant Volume Combustion and its reduced order model – ENSMA (FR), Supervisors: Prof. Marc Bellenoue and Bastien Boust
ESR2 Gregory Uhl: Numerical analysis of the interaction between a Rotating Detonation Combustor and an axial turbine – SAFRAN Tech (FR), Dr. Said Taileb, Prof. Marc Bellenoue, Prof. Thierry Poinsot,
ESR3 Nicola Detomaso: Simulation of CVC combustor – CERFACS (FR), Supervisors: Prof. Thierry Poinsot, , Dr. Davide Laera, Dr. Florent Duchaine
ESR4 Maria Clara de Jesus Vieira: Experimental characterization of ignition events in CVC like conditions – ENSMA (FR), Supervisors: Prof. Julien Sotton, Prof. Marc Bellenoue and Prof. Camille Strozzi
ESR5 Provence Barnouin: Control and impact of RDC wave direction – TUB (DE), Supervisors: Prof. Myles Bohon and Prof. Christian O. Paschereit
ESR6 – Patrick Strempfl: LES of flow and combustion in a rotating detonation engine coupled to a turbine – CERFACS (FR), Supervisor: Prof. Thierry Poinsot
ESR7 – Hongyi Wei: Experimental investigation of rotating detonation combustors including ignition processes and turbine-integration effects – TUB (DE), Supervisors: Prof. Myles Bohon and Prof. Christian O. Paschereit
ESR8Thomas Golliard: Computational aeroacoustics of the exhaust flow for noise assessment and control – KTH (SE), Supervisors: Prof. Mihai Mihaescu, Prof. Anders Dahlkild
ESR9 – Roseline Ngozi Ezekwesili: Deflagration-Autoignition-Detonation transition – TUB (DE), Supervisor: Prof. Myles Bohon and Prof. Marc Bellenoue
ESR10 – Shreyas Ramanagar Sridhara: Numerical modelling and optimization of cooling solutions for PGC concepts – UNIFI (IT), Supervisors: Prof. Antonio Andreini
ESR11- Umberto Sandri: Experimental study of cooling solutions for PGC concepts – UNIFI (IT), Supervisor: Prof. Bruno Facchini, Prof. Antonio Andreini, Dr. Alessio Picchi
ESR12 – Panagiotis Gallis: Unsteady numerical simulation of the interaction between pressure-gain combustors and high-pressure turbine stages – POLITO (IT), Supervisor: Dr. Simone Salvadori
ESR13 – Abhishek Dubey: power plant analysis and cycle thermo-economic optimization – UNIGE (IT), Supervisor: Prof. Alessandro Sorce
ESR14 – Sreenath Purushothaman: propulsion application with part load and dynamic analysis – UNIGE (IT), Supervisors: Prof. Alessandro Sorce, Prof. Alberto Traverso
ESR15 – Gokkul Raj Varatharajulu Purgunan: Full gas dynamic and exergetic analysis of PGC cycles with rotating detonations – TUB (DE), Supervisor: Prof. Panagiotis Stathopoulos