BrainMap

Mr. Vasile Prisacariu

associate professor PhD

Associate Professor - Academia Fortelor Aeriene "Henri Coanda" Brasov

Teaching staff

Web of Science ResearcherID: G-8639-2013

Expertise & keywords

Advanced Research on Convective Clouds using Remote Sensing Instruments from New Exploratory Platforms Call name: P 2 - SP 2.1 - Proiect experimental - demonstrativ
PN-III-P2-2.1-PED-2021-1938 2022 - 2024

Role in this project: Partner team leader

Coordinating institution: INSTITUTUL NATIONAL DE CERCETARE-DEZVOLTARE PENTRU OPTOELECTRONICA INOE 2000 INCD

Project partners: INSTITUTUL NATIONAL DE CERCETARE-DEZVOLTARE PENTRU OPTOELECTRONICA INOE 2000 INCD (RO); Academia Fortelor Aeriene "Henri Coanda" Brasov (RO)

Affiliation: Academia Fortelor Aeriene "Henri Coanda" Brasov (RO)

Project website: http://accuresy.inoe.ro/

Abstract:

The ACCuReSy project (Advanced Research on Convective Clouds using Remote Sensing Instruments from new Exploratory Platforms) aims to perform advanced research of the atmospheric environment before, during and after the convective events in order to investigate the aerosol-cloud interactions with special attention on the factors that contribute to the hail formation. The novelty of this proposal resides in the top-class ground-based infrastructures that will be used to accomplish the goals of the project. Two research team will be involved in this project: Remote Sensing Department of INOE and Aviation Department of “Henri Coanda” Air Force Academy, both relying on state-of-the-art facilities with radar systems operating on various frequencies, meteorological sensors and sondes, and UAVs.

The project will be implemented in two locations, Măgurele and Brașov, chosen by their relevance for the environmental factors that meet the conditions for various type of convective development. Intensive campaigns will be performed during the convective seasons of 2022 and 2023 in order to build a consistent convective database to be analysed later. During the implementation of the project intervention squads will be organized to proceed for a rapid displacement into the areas where the convective development are ongoing for on-site documentation, launching the probes in the unstable environment, and if possible to collect samples (i.e. hail stones). Physico-chemical analyses will be performed on hydrometeor samples investigate the content of suspended particles in the convective environment.

Overall, with this project we aim to produce new insight to the way aerosols affect convective storm and to open ways for implementation these details for a better prediction of convective storms and also to improve the cal/val techniques for the EO satellite missions dedicated to cloud observations.

Pulsed Detonation Chamber Call name: P 2 - SP 2.1 - Proiect experimental - demonstrativ
PN-III-P2-2.1-PED-2019-0577 2020 - 2022

Role in this project: Partner team leader

Coordinating institution: INSTITUTUL NATIONAL DE CERCETARE-DEZVOLTARE TURBOMOTOARE - COMOTI

Project partners: INSTITUTUL NATIONAL DE CERCETARE-DEZVOLTARE TURBOMOTOARE - COMOTI (RO); Academia Fortelor Aeriene "Henri Coanda" Brasov (RO); UNIVERSITATEA DIN CRAIOVA (RO)

Affiliation: Academia Fortelor Aeriene "Henri Coanda" Brasov (RO)

Project website: http://www.comoti.ro/ro/Proiect_PDC.htm

Abstract:

The project proposes to explore and expand the scientific foundations of an early stage propulsion technology based on supersonic combustion (detonation), envisioned to trigger a step change in air transportation in the second half of this century. The proposed propulsion system creates the propulsive supersonic exit jet by means of Hydrogen fueled Pulsed Detonation Combustors that converts the chemical energy stored in the fuel into kinetic energy of the jet and heat, that are converted into thrust by properly designed nozzles. The solution presents significant advantages in terms of efficiency, and is clearly beneficial from an environmental standpoint, due to the lack of Carbon based reaction products.

The proposed project builds upon two successive earlier research programs: the FP 7 European research program TIDE and the ongoing Romanian Space Agency STAR research project MILADEE (ending in December 2019). The previous projects demonstrated the validity of the proposed breakthrough concept, and established a new state-of-the in the field. The PDE operation frequency registered during the experiments was of 100 Hz in TIDE, and 300 Hz in MILADEE (preliminary data) for Hydrogen / air mixtures, which is the current state-of-the-art, as reported by several other research groups in the world.

The objectives of the proposed project are to increase the PDC operating frequency by achieving a self - sustaining detonation process exceeding the current international state-of-the-art for Hydrogen / air mixtures; to improve the aerodynamics of the shock wave structure inside the PDC in order to achieve fuel self ignition; to carry out a detailed analysis of the burned gas exiting the PDC focusing on NOx formation under detonation conditions; to drastically increase the temporal resolution of the acquired data, to carry out experimental and numerical analyses of the off-design operation of the PDC and to improve the numerical modelling of Hydrogen fueled supersonic combustion

Developing resilience and tolerance of crop resource use efficiency to climate change and air pollution. Call name: P 3 - SP 3.2 - Proiecte ERA.NET - COFUND
COFUND-SUSCROP-SUSCAP-1 2019 - 2022

Role in this project: Key expert

Coordinating institution: Academia Fortelor Aeriene "Henri Coanda" Brasov

Project partners: Academia Fortelor Aeriene "Henri Coanda" Brasov (RO); Stockholm Environment Institute (GB); Center for International Climate Research (NO); JRC Directorate Sustainable Resources, (IT); University of Bonn INRES Crop Science (DE); Consiglio per la ricerca in agricoltura e l'analisi dell'economia agraria (IT); CIEMAT - Environmental Department (ES)

Affiliation: Academia Fortelor Aeriene "Henri Coanda" Brasov (RO)

Project website: https://suscap.pubpub.org

Abstract:

It is well known that climate change will impact arable crop production across Europe in the coming decades. We also know that air pollution is already having substantial impacts on crop productivity causing yield losses of between 10 and 15% on average across Europe for sensitive staple crops such as wheat. What is unclear is how these stresses will combine to impact crop growth, development and yield through influences on important crop resource use efficiencies such as radiation, water, and nutrient use.

Within this project, we will develop a new generation of process-based crop models to better understand the mechanisms, and hence impacts, of these multiple stresses both for the current day and future 2050 climates. This will allow us to identify the magnitude, frequency and geographical distribution of the combined stresses most likely to limit resource use efficiency and hence crop productivity. This will be important since, in spite of international efforts to reduce emissions, poor air quality in Europe is currently set to continue to substantially impact crop yields until at least 2050 and GHG emissions are still on course to see large changes in climate over the coming decades.

The project will build on existing initiatives to develop modeling approaches; and will conduct this research in close dialogue with policy and sector stakeholders that are partners of our consortium of eight world-leading expert groups skilled in climate change and air pollution in relation to experimental and crop modeling. Ultimately, this project will target an increase in the sustainability of agriculture across Europe and a reduction in the threats to crop resource use efficiency from both current and future climate change and air pollution stress.

Multiagent intelligent systems platform for the monitoring of water quality on the Romanian sector of the Danube and Danube Delta Call name: P 1 - SP 1.2 - Proiecte complexe realizate in consorții CDI
PN-III-P1-1.2-PCCDI-2017-0637 2018 - 2021

Role in this project: Key expert

Coordinating institution: INSTITUTUL NATIONAL DE CERCETARE DEZVOLTARE PENTRU FIZICA LASERILOR, PLASMEI SI RADIATIEI - INFLPR RA

Project partners: INSTITUTUL NATIONAL DE CERCETARE DEZVOLTARE PENTRU FIZICA LASERILOR, PLASMEI SI RADIATIEI - INFLPR RA (RO); Academia Fortelor Aeriene "Henri Coanda" Brasov (RO); Ministerul Apărării Naționale prin Centrul de Cercetare și Inovare pentru Apărare CBRN și Ecologie (RO); UNIVERSITATEA POLITEHNICA DIN BUCURESTI (RO); INSTITUTUL DE MECANICA SOLIDELOR (RO)

Affiliation: Academia Fortelor Aeriene "Henri Coanda" Brasov (RO)

Project website: https://multimond.wixsite.com/multimond

Abstract:

The MultiMonD2 project proposes the development of a multi-agent platform consisting of micro-laboratories specialized in the monitoring the water quality of the Danube and Danube Delata and the testing of its decontamination capabilities. To this end, robotic vectors will be realized which will integrate systems for the investigation of Danube's water quality and dynamics. The acquired data will be collected and interpreted by a dedicated software system, operated from a control center. The robotic vectors will be equipped with sensors systems and devices for diagnostics organized as micro-labs for the monitoring of water quality, management of floods and sediments. The project (MultiMonD2) is made of 4 interdisciplinary and complementary projects, interconnected through specific objectives aimed at achieving the general objective: development of the MultiMonD2 multifunctional platform. Therefore, the aerial and surface water vectors will be used used as carrier systems for the sensor based detection equipment (developed in project 1). Project 2 proposes the development of a technical solution that allows the optimizing of communication from the different types of sensors mounted on the robotic vectors and includes software modules that will interact with the Control and Command Center developed in project 3. Project 4 constitutes a 'proof-of-concept', which proposes, based on the results obtained and processed in the other projects, a solution for local decontamination. The consortium is made of 5 partner institutions. The institutional consolidation of the partners is achieved by: i) ensuring new positions for young people in the field of research, ii) development of novel/improved technologies and iii) the providing of research and technological services with impact in the economy.

MIcro LAuncher based on DEtonation Engine Call name:
STAR ROSA C3-2016-624, contract 174/2017 2017 - 2020

Role in this project: Key expert

Coordinating institution: INSTITUTUL NATIONAL DE CERCETARE-DEZVOLTARE TURBOMOTOARE - COMOTI

Project partners: INSTITUTUL NATIONAL DE CERCETARE-DEZVOLTARE TURBOMOTOARE - COMOTI (RO); Academia Fortelor Aeriene "Henri Coanda" Brasov (RO)

Affiliation: Academia Fortelor Aeriene "Henri Coanda" Brasov (RO)

Project website:

Abstract:

Modular Aerial Platform for Intelligent Atmosphere Monitoring Call name: P 2 - SP 2.1 - Proiect experimental - demonstrativ
PN-III-P2-2.1-PED-2016-1972 2017 - 2018

Role in this project: Key expert

Coordinating institution: INSTITUTUL NATIONAL DE CERCETARE DEZVOLTARE PENTRU FIZICA LASERILOR, PLASMEI SI RADIATIEI - INFLPR RA

Project partners: INSTITUTUL NATIONAL DE CERCETARE DEZVOLTARE PENTRU FIZICA LASERILOR, PLASMEI SI RADIATIEI - INFLPR RA (RO); Academia Fortelor Aeriene "Henri Coanda" Brasov (RO)

Affiliation: Academia Fortelor Aeriene "Henri Coanda" Brasov (RO)

Project website: http://ppam.inflpr.ro/MAPIAM/mapiam_ro.htm

Abstract:

The project entitled “Modular Aerial Platform for Intelligent Atmosphere Monitoring” acronym MAPIAM, has as main objective the demonstration of a aerial mobile platform which aims the detection of the combustible gases. This platform offers a synergistic combination between aerial robots and combustible gas sensors based on nanostructures of metal oxide semiconductors. Combining the advantages of nanotechnology and those offered by robotic aerial platforms, MAPIAM architecture allows the usage of the platform for applications as surveillance and control, necessary in such activities as: detection of leaks of fuel along transport pipelines; detection of accidental or deliberate release by industrial agents and households; control of pollutants in road transport, marine or rail activities etc.

The two teams, project coordinator and partner, will work in parallel to develop the two main component systems of the MAPIAM (gas sensors based on nanostructures of SnO2 and air robots). In the final phase, the combustible gas sensors developed and tested in laboratory, will be attached to air robots. The resulting assembly will be tested in laboratory specific conditions to adjust the parameters of the component parts so that the platform to function as a whole, demonstrating the feasibility of MAPIAM.

Multi Agent Aerial System with Mobile Ground Control Station for Information Managemen Call name: Joint Applied Research Projects - PCCA 2013 - call
PN-II-PT-PCCA-2013-4-1349 2014 - 2017

Role in this project: Key expert

Coordinating institution: Academia Fortelor Aeriene "Henri Coanda" Brasov

Project partners: Academia Fortelor Aeriene "Henri Coanda" Brasov (RO); UNIVERSITATEA POLITEHNICA DIN BUCURESTI (RO); INSTITUTUL NATIONAL DE CERCETARE-DEZVOLTARE AEROSPATIALA "ELIE CARAFOLI" - I.N.C.A.S. BUCURESTI (RO); INSTITUTUL DE MECANICA SOLIDELOR (RO); STRAERO-(INSTITUTUL PENTRU CALCULUL SI EXPERIMENTAREA STRUCTURILOR AERO-ASTRONAUTICE) S.A. (RO); COMPOZITE S.R.L. (RO); SIVECO ROMANIA SA (RO)

Affiliation: Academia Fortelor Aeriene "Henri Coanda" Brasov (RO)

Project website: http://www.afahc.ro/ro/cercetare/masim.html

Abstract:

The project Multi Agent Aerial System with Mobile Ground Control Station for Information Management (MASIM) aims at aggregating spatial information in areas of interest, and refining and managing it with the aid of a multi agent system made up of miniature aerial platforms coordinated by an off-road mobile ground control station. This innovative technology builds upon the disruptive progresses made in the field of autopilots and board sensors available in high-performance miniature versions. Hence, it can successfully replace manned aircrafts or unmanned air vehicles (UAVs).

By reducing platform size and ensuring multi agent cooperation, the system’s applicability extends beyond typical missions like air surveillance and monitoring currently undertaken with classical systems (manned aircrafts or tactical UAVs). The outcome of the system’s applicability are its unique capabilities to be employed in urban/crowded public areas surveillance and in search and rescue missions conducted in inaccessible areas. Using a mobile ground control station ensures system endurance, an essential prerequisite for using miniature aerial platforms.

MASIM provides a modular, flexible, scalable, multi agent coordination and decision support technology and easy to use by different levels of management involved in crisis management in real time. MASIM architecture allows the conduct of new missions in crowded, dangerous areas or of missions in which classical intervention means performance is poor or are cost prohibitive. MASIM meets the current requests of the end users concerning the efficient exploitation of a modular, flexible, adaptable and scalable platform by averagely trained operators at reduced costs.

The advantages of this alternative solution are: aerial vectors versatility resulting from the extended range of possible missions; dramatic cost reduction generated by the use of low cost materials and innovative technologies.

MASIM consists of: an aerial system (a fixed wing and a rotary wing modular aerial vectors flexibly equipped and adaptable to mission scope); a mobile command and control station (an mobile platform equipped with command and control, and maintenance capabilities,); a communication system; aerial platform command-control system cooperative and intelligent information management.

MASIM builds upon the project director’s and scientific committee’s experience in the field of miniature aerial platform design, development and testing. Moreover, it benefits from an extended testing foundation provided by existing miniature aerial platforms, equipment, sensors, autopilots and communication systems, allow for the extension of the applicative research both to integrated system level, and component level incorporating innovative solutions.

MASIM’s innovation and efficiency contribute to knowledge creation and acquisition of excellent results in a field of global concern, with direct consequences on the international visibility of Romanian research. The concept and architecture of the multi agent aerial miniature platform system proposed by the project ensure efficient technological transfer and a significant impact on the end users. The concepts, the innovative solutions and the manner of applying them are of great importance in facilitating the testing and skill enhancement of MASIM’s operating personnel from the intervention teams. Given the interest of the system’s end users in the development of this technology, MASIM results can be further used after project completion. That is a reason for increasing the level of private co-financing in the future and for achieving a leverage effect. MASIM l is centered on the swift transfer of the academic research findings into industrial innovation of interest to the end users. It also expands the concept of innovation from the technological area to the field of services and organizing. So, MASIM may be the basis for a future PC8 project proposal.

Gas Turbine using in situ combustion Call name: Joint Applied Research Projects - PCCA 2013 - call
PN-II-PT-PCCA-2013-4-1187 2014 - 2017

Role in this project: Key expert

Coordinating institution: INSTITUTUL NATIONAL DE CERCETARE-DEZVOLTARE TURBOMOTOARE - COMOTI

Project partners: INSTITUTUL NATIONAL DE CERCETARE-DEZVOLTARE TURBOMOTOARE - COMOTI (RO); UNIVERSITATEA POLITEHNICA DIN BUCURESTI (RO); INAS S.A. (RO); Academia Fortelor Aeriene "Henri Coanda" Brasov (RO); SIVECO ROMANIA SA (RO)

Affiliation: Academia Fortelor Aeriene "Henri Coanda" Brasov (RO)

Project website: http://195.82.131.197/turist/

Abstract:

Currently, research in fossil fuels energy production is confronted with the issue of large levels of pollutants emissions and green house effects. National and worldwide energy consumption shows an increasing trend which, in order to satisfy this demand in corroboration with maintaining or reduction the levels of pollutants emissions, leads to a growing awareness to increase the efficiency of power production systems and/or reconsideration of several aspects of fossil fuels combustion. Stationary and mobile turboengines are part of the general class of fossil fuel power generating systems and their development prognosis presents a growing trend through the nowadays widespread solution of cogeneration and turbojet propulsion systems used in aviation on both medium an long-range transportation. Obviously, this development prognosis has the unwanted side effect of increasing the amount of both toxic emissions (CO, NOx, unburnt hydrocarbons- UHC) and green house gaseous emissions (H2O, CO2) not only in the close surrounding areas of power stations and airports but also on troposphere and stratosphere with known effects on ozone layer.

Our project proposal is focused on the numerical and experimental quantitative assessment of the transport phenomena in turbine-combustor power systems, including chemical pollutants emissions. The assessment of combustion in a rotor-stator interaction flow represents a novelty in both the field of turbomachinery and chemical reaction flows. This original contribution represents not only a theoretical development of the combustion processes but, through quantitative assessment could bring a confirmation of the validity of the conceptual approach. The potential original scientific aspects this combustion simulation would yield are: 1) chemical kinetics models for turbulent diffusive flames and partially premixed partially diffusive flames in high pressure gradient flows; 2) closure models for turbulent correlations in high pressure gradient reactive flows.

Major research targets:

• I. Development of original mathematical models and software package for turbulent reactive flows inside main combustion chamber and turbine-combustor. Because the only current mathematical model capable of capturing the sailient features of the complex character of combustion and the development of turbulent structures is Navier-Stokes model, we consider building up two sets of numerical simulation codes based on: (a) statistical modeling (RANS – Reynolds-Averaged Navier-Stokes Equations) and respectively, (b) LES modeling (Large-Eddy Simulations) for combustion related problems.

• II. Design of demonstrator. The experiments will be conducted such that to mimic in the highest possible degree the real processes carried on in the turbine-combustor. Hence, first of all, operating parameters responsible for pollutants emissions will be identified and secondly, experimental results will constitute the underlying basis for the previously theoretical models validation. Final validation of the integrated system will be performed on a full scale turbine-combustor model.

Novel aspects: Setting-up of a physical operational model for computing and numerical simulation of the phenomena generated by turbine combustion and modern technologies for pollutants control.

Impact: The validation of turbine-combustor will enhance specific thrust by 5 to 10% depending on specific solution and the reheating degree, will reduce the characteristic weight of the turboengine by at most 10% . We estimate a reduction of NOx emission index by 30-50% against the classical turboengines solutions. The operating model will constitute not only a basis for knowledge dissemination but also a practical solution for developing new design methods and technologies in turbomachinery

FILE DESCRIPTION	DOCUMENT
List of research grants as project coordinator or partner team leader
Significant R&D projects for enterprises, as project manager
R&D activities in enterprises
Peer-review activity for international programs/projects