Domenii
de competenta:
- masini hidraulice si pneumatice
- sisteme hidraulice de actionare
- actionari hidraulice la presiune ridicata
- proiectare computerizata
- sisteme hidraulice din componenta instalatiilor ce utilizeaza
energii regenerabile
- testarea echipamentelor si aparaturii hidraulice
Lucrari
semnificative publicate in anii recenti:
Articole ISI cu factor de impact:
Popescu, T.C., Dumitrescu, C., Bordeasu, I. - Aspects Concerning the Use of Plastics in Developing Test Stands for Experimental Models of Hydraulic Turbine Blades and Rotors, publicat in Revista de Materiale Plastice, volume: 53, pg. 174-178, martie 2016, ISSN: 0025-5289, WOS:000373966500040
Lista articolelor ISI Proceedings (dupa Web of Knowledge)
2016
1. A. Ciocanea, C. Dumitrescu, R. Sauciuc, L. Dumitrescu, C. Cristescu - Cleaning by physical methods of membranes used for drinking water treatment - a case study for hollow fiber membranes with different molecular weight cut-off, References: 16th International Multidisciplinary Scientific GeoConference SGEM 2016, www.sgem.org, SGEM 2016 Conference Proceedings, ISBN 978-619-7105-61-2 / ISSN 1314-2704, June 28 - July 6, 2016, Book 3 Vol. 1, 153-160 pp, DOI: 10.5593/SGEM2016/B31/S12.021
2. C. Cristescu, C. Dumitrescu, T. C. Popescu, P. Krevey, A. Ciocanea - Research on the hydrostatic systems used in order to control rotational speed at the hydraulic turbines within small-scale hydropower plants, References: 16th International Multidisciplinary Scientific GeoConference SGEM 2016, www.sgem.org, SGEM 2016 Conference Proceedings, ISBN 978-619-7105-63-6 / ISSN 1314-2704, June 28 - July 6, 2016, Book 4 Vol. 1, 595-602 pp, DOI: 10.5593/SGEM2016/B41/S17.077
3. T.C. Popescu, C. Dumitrescu, C. Cristescu, A. Popescu, A. Marinescu - Solutions for an effective integration of hydraulic servomechanisms driven by laser in the structure of automatic leveling navvy machines, References: 16th International Multidisciplinary Scientific GeoConference SGEM 2016, www.sgem.org, Conference Proceedings, ISBN 978-619-7105-63-6 / ISSN 1314-2704, June 28 - July 6, 2016, Book 4 Vol. 1, 639-646 pp, DOI: 10.5593/SGEM2016/B41/S17.083
2017
4. C. Cristescu, C. Dumitrescu, V. Dulgheru, L. Dumitrescu, A.- M. Popescu.- Combined systems for generating electrical and thermal energy from renewable sources, with storage of it through conversion to other energy forms, for use in isolated places; In: Conference Proceedings of 17th International Multidisciplinary Scientific GeoConference SGEM 2017, Volume 17, Renewable Energy Sources and Clean Technologies, Issue 42, Energy and Clean Technologies, DOI: 10.5593/sgem2017/42, pp. 135-142;
5. C. Cristescu, R. Radoi, C. Dumitrescu, I. Ilie, A. Ciocanea - Increasing energy efficiency of solar panel trackers by hydrostatic drive based on mechatronics technology;. In: Conference Proceedings of 17th International Multidisciplinary Scientific GeoConference SGEM 2017, Volume 17, Renewable Energy Sources and Clean Technologies, Issue 42, Energy and Clean Technologies, DOI: 10.5593/sgem2017/42, pp. 353-360
2018
6. C. Cristescu, C. Dumitrescu, V. Dulgheru, L. Dumitrescu.- New evolutions, directions and trends in conversion and storage of renewable energies; In: Conference Proceedings of 18th International Multidisciplinary Scientific GeoConference SGEM 2018, Volume 18 Energy and Clean Technologies, Issue: 4.1 Nuclear Technologies. Renewable Energy Sources and Clean Technologies, DOI: 10.5593/sgem2018/4.1, pp. 493-500
Lucrari stiintifice publicate in reviste de specialitate indexate BDI
2016
1. P. Drumea, C. Dumitrescu, s.a - Energy loss reduction in hydraulic systems with fixed pump in agricultural machinery, Proceeding of the 5th International Conference of Thermal Equipment, Renewable Energy and Rural Development TE-RE-RD 2016, Golden Sands - Bulgaria, 2-4 June 2016, ISSN 2359-7941, ISSN-L 2359-7941, pg. 221-226
2. C. Cristescu, C. Dumitrescu, G. Vranceanu, L. Dumitrescu, - Considerations on Energy Losses in Hydraulic Drive Systems, revista HIDRAULICA nr. 1 / 2016, pg. 36 - 46, ISSN 1453 - 7303, revista indexata BDI: ProQuest, EBSCO
3. P. Drumea, C. Dumitrescu, Al. Hristea, A. - M. Popescu, - Energy Use in Hydraulic Drive Systems Equipped with Fixed Displacement Pumps, revista HIDRAULICA nr. 2 / 2016, pg. 48 - 57, ISSN 1453 - 7303, revista indexata BDI: ProQuest, EBSCO
4. R. Radoi, C. Dumitrescu, I. Dutu - Computerized System for a Steering Box Testing Stand with Automatic Data Record and Report Issuing, revista HIDRAULICA nr. 3 / 2016, pg. 29 - 33, ISSN 1453 - 7303, revista indexata BDI: ProQuest, EBSCO
5. C. Cristescu, C. Dumitrescu, G. Vranceanu, L. Dumitrescu, A. - M. Popescu - Combined energy systems for obtaining energy from renewable sources used in isolated areas; In: Rev. Hidraulica nr. 4/2016, pp. 33-40, ISSN 1453 - 7303, revista indexata BDI: ProQuest, EBSCO
6. T. C. Popescu, C. Dumitrescu, C. Calinoiu, D. Vasiliu - Tuning the servo system of a coil wire roller by AMESIM;. In: Proc. of 14th Annual Industrial Simulation Conference ISC'2016, pp. 98-104;
7. C. Dumitrescu, T. C. Popescu, L. Dumitrescu, D. Vasiliu, D. D. Ion Gu?a - Modeling simulation and test of the high pressure relief valves;. In: Proc. of 14th Annual Industrial Simulation Conference ISC'2016, pp. 85-89;
8. C. Dumitrescu, V. Dulgheru, C. Cristescu, L. Dumitrescu, M. Blejan, R. Radoi - Reducing Conventional Fuel Consumption by Implementing Hybrid Energy Production Systems; In: Proc. of ISB-INMA TEH' 2016 International Symposium on Agricultural and Mechanical Engineering, pp. 571-576;
9. Murad E., Dumitrescu C., Dragomir F., Popescu M - CHAB concept in sustainable development of agriculture;. In: Proc. of ISB-INMA TEH' 2016 International Symposium on Agricultural and Mechanical Engineering, pp. 257-262;
10. Ioan Lepadatu, Catalin Dumitrescu, Liliana Dumitrescu, Genoveva Vranceanu, Polifron Alexandru Chirita - The energy balance of pumps equipped with pressure, flow and power regulators;. In: Proc. of 2016 International Conference on Hydraulics and Pneumatics - HERVEX, pp. 62-67;
11. Corneliu Cristescu, Catalin Dumitrescu, Radu Radoi, Genoveva Vranceanu, Constantin Chirita - Capturing and storing the energy recovered from hydraulic drive systems of mobile machinery and equipment;. In: Proc. of 2016 International Conference on Hydraulics and Pneumatics - HERVEX, pp. 105-114;
12. Ioan Lepadatu, Corneliu Cristescu, Liliana Dumitrescu, Alexandru Polifron Chirita, Radu Radoi, Catalin Dumitrescu - Hydraulically driven assault double ramp;. In: Proc. of 2016 International Conference on Hydraulics and Pneumatics - HERVEX, pp. 131-140;
13. T. C. Popescu, C. Dumitrescu, Al. Marinescu.- Hydraulic lifting equipment provided with energy recovery; In: Proc. of 2016 International Conference on Hydraulics and Pneumatics - HERVEX, pp. 150-155;
14. P. Drumea, I. C. Dumitrescu, Al. Hristea, A. P. Chirita - Methods of diagnosing malfunctions in hydraulic actuations;. In: Proc. of 2016 International Conference on Hydraulics and Pneumatics - HERVEX, pp. 212-217;
15. C. Cristescu, C. Dumitrescu, P. Drumea, V. Dulgheru, Kr. Kedzia.- Technologies of capture and storage of energy from renewable sources; In: Proc. of 2016 International Conference on Hydraulics and Pneumatics - HERVEX, pp. 368-382;
16. P. Drumea, C. Dumitrescu, B. Tudor - Energy efficiency methods in hydraulic systems using digital hydraulics;. At: International Scientific-Technical Conference HYDAULIC AND PNEUMATIC DRIVES AND CONTROLS 2016, Katowice, Poland (oral presentation)
2017
17. C. Cristescu, C. Dumitrescu, R. Radoi, A. I. Popescu - Experimental determination of pressure losses when the working fluid passes through hydrostatic directional valves; In: Rev. Hidraulica nr.1/2017, pp. 39-48;
18. C. Cristescu, C. Dumitrescu, V. Dulgheru, T. C. Popescu - Increasing energy efficiency and optimizing the operation of systems that produce clean energy from renewable sources;. In: Rev. Hidraulica nr. 3/2017, pp. 62 - 73;
19. E. Maican, I. Du?u, G. Matache, C. Dumitrescu, I. Pavel - CFD analysis of an improved TLUD based equipment for heating small greenhouses and hothouses;. In: Rev. INMATEH - Agricultural Engineering, vol. 53, nr. 3/2017, pp. 5 - 12;
20. C. Cristescu, C. Dumitrescu, R. Radoi, P. Chirita - Determining the resistant friction forces that occur during switching process of directional control valves used in hydrostatic drives;. In: Proc. of the 15th International Conference on Tribology - SERBIATRIB ’17, Kragujevac, Serbia, pp. 244 - 250;
21. C. Cristescu, C. Dumitrescu, V. Dulgheru, L. Dumitrescu - Developments, trends and orientations regarding the realization of renewable energy conversion systems;. In: Proc. of 2017 International Conference on Hydraulics and Pneumatics - HERVEX, pp. 331 - 341;
22. C. Cristescu, C. Dumitrescu, R. Radoi, L. Dumitrescu - Experimental determination of frictional forces occurring when switching hydraulic directional valves;. In: Proc. of 2017 International Conference on Hydraulics and Pneumatics - HERVEX, pp. 169 - 175
2018
23. C. Dumitrescu, C. Cristescu, L. Dumitrescu, D. Ionescu - Masini de topit zapada / Snow melting machines;. In: Rev. "Stiinta si inginerie", vol. 33, pp. 115-122
24. Al. P. Chiri?a, L. Dumitrescu, C. Dumitrescu, C. Cristescu, St. M. Sefu - Optimizarea constructiva a suportului motoarelor hidrostatice utilizate pentru deplasarea cu viteze reduse a autovehiculelor multifunctionale;. At: Al XXIV-lea Simpozion National de Utilaje pentru Constructii SINUC 2018 (oral presentation);
25. C. Cristescu, C. Dumitrescu, R. Radoi, P. Drumea - Experimental researches to measure the total resistance forces that appear at the switching process of directional control valves;. In: 11th IFK Conference Proceedings, 19 - 21 March 2018 Aachen, Germany, vol. 2, pp. 472-481;
26. C. Cristescu, C. Dumitrescu, R. Radoi, L. Dumitrescu, V. Dulgheru - Ingineria energiilor regenerabile - inginerie prioritara pentru secolul XXI;. In: Buletinul AGIR nr. 4/2018, pp. 61-70;
27. P. Drumea, C. Dumitrescu, I. Bordeasu, L. Vaida, D. Opruta - Trends in the development of hydraulic drives;. In: Proc. of 2018 International Conference on Hydraulics and Pneumatics - HERVEX, pp. 326 - 333;
2019
28. P. Drumea, C. Dumitrescu, I. Pavel, B. Tudor, Al. Hristea - Modele functionale din hidraulica digitala / Functional models in digital hydraulics, in Proceedings Zilele Academice ale ASTR, editia a XIV- a 2019, 17 - 18 octombrie 2019, Chisinau, Republica Moldova, ISSN 2066-6586
29. T. C. Popescu, C. Dumitrescu - Considerations regarding the use of hydrostatic transmissions in wind turbine;. In: Proc. of 2019 International Conference on Hydraulics and Pneumatics - HERVEX, pp. 111 - 119;
30. P. Drumea, A. M. Popescu, C. Dumitrescu.- Fluid Power, Industry 4.0 and Circular Economy; In: Proc. of 2019 International Conference on Hydraulics and Pneumatics - HERVEX, pp. 191 - 197
2020
31. P. Drumea, I. C. Dumitrescu, M. Al. Hristea - Conceptual solutions for digital hydraulic pumps, conference NEWTECH 2020 - The 6th International Conference on Advanced Manufacturing Engineering and Technologies, 9th - 11th September 2020, Galati, Romania
Lista brevetelor de inventie detinute:
B.1. Enache Liviu, Dumitrescu Catalin, Sistem de etansare pentru miscari de translatie, Brevet nr. 116498 / 2001
B.2. Drumea Petrin, Ionita Niculae, Comes Mircea, Lepadatu Ioan, Dumitrescu Catalin, Supapa hidraulica proportionala, normal deschisa, cu debit mare, Brevet nr. 121971/2008
B.3. Drumea Petrin, Ionita Niculae, Lepadatu Ioan, Cristescu Corneliu, Dumitrescu Catalin, Oprea Ion, Lift cu siguranta marita in functionare, pentru persoane cu dizabilitati locomotorii, Brevet nr. 121989/2008
B.4. Drumea Petrin, Ionita Niculae, Comes Mircea, Mirea Adrian, Dumitrescu Catalin, Oprea Ion, STALP MOBIL TELECOMANDAT, Brevet nr. 122371/2009
B.5. Drumea Petrin, Ionita Niculae, Dumitrescu Catalin, Rotaru Danut, Dumitrescu Liliana, Divizor de debit cu comanda electromagnetica, Brevet nr. 122596/30.09.2009
B.6. Drumea Petrin, Ionita Niculae, Dumitrescu Catalin, Transformator hidraulic, Brevet nr. 122647/30.20.2009
B.7. Ionita Niculae, Dumitrescu Catalin, Distribuitor hidraulic cu comanda electrica, tip cartus, Brevet nr. 122648/30.10.2009
B.8. Drumea Petrin, Ionita Niculae, Dumitrescu Catalin, Radoi Radu - Iulian, Cutie de viteze hidraulica, Brevet nr. 122974/2010
B.9. Drumea Petrin, Ionita Niculae, Lepadatu Ioan, Cristescu Corneliu, Dumitrescu Catalin, Instalatie hidraulica de recuperare a energiei de franare, Brevet nr. 122959/2010
B.10 Radulescu Gabriel, Ionita Niculae, Dumitrescu Catalin, Dumitrescu Liliana, Radoi Radu - Iulian, Stivuitor pentru manevrarea sarcinilor mici si compacte, Brevet nr. 123075/2010
B.11. Ionita Niculae, Dumitrescu Catalin, Dumitrescu Liliana, Cilindru hidraulic pentru presare, Brevet nr. 123079/2010
B.12. Ionita Niculae, Radulescu Gabriel, Dumitrescu Catalin, Dispozitiv tribologic pentru cilindri pneumatici, Brevet nr. 126235/30.03.2012
B.13. Ionita Niculae, Dumitrescu Catalin, Rotaru Danut, Masina hidraulica rotativa, Brevet nr. 123433/30.04.2012
B.14. Ionita Niculae, Dumitrescu Catalin, Dumitrescu Liliana, Transformator hidraulic rotativ, Brevet nr. 123434/30.04.2012
B.15. Ionita Niculae, Dumitrescu Catalin, Dispozitiv de orientare automata a unui captator de energie solara, Brevet nr. 126700/30.08.2012
B.16. Ionita Niculae, Dumitrescu Catalin, Turbina eoliana, Brevet nr. 127087/30.08.2012.
B.17. Ionita Niculae, Radulescu Gabriel, Dumitrescu Catalin, Pompa hidraulica proportionala rasturnabila, Brevet nr. 126584/29.03.2013
B.18. Ionita Niculae, Dumitrescu Catalin, Dumitrescu Liliana, Stand de testare comparativa la anduranta a pompelor hidrostatice rotative, Brevet nr. 128056/28.06.2013
B.19. Ionita Niculae, Radulescu Gabriel, Dumitrescu Catalin, Rotaru Danut, Unitate hidraulica proportionala, Brevet nr. 123545/28.06.2013
B.20. Drumea Petrin, Murad Erol, Dumitrescu Catalin, Instalatie pentru producerea energiei termice utilizand energia solara combinata cu energie obtinuta din gazeificarea biomasei, Brevet nr. 126699/30.09.2015
B.21. Ionita Niculae, Dumitrescu Catalin, Platforma ridicatoare (Platforma ridicatoare cu recuperare de energie), Brevet nr. 126767/29.01.2016
B.22. Ionita Niculae, Dumitrescu Catalin, Panou solar termic, Brevet nr. 127041/30.05.2016
B.23. Ionita Niculae, Dumitrescu Catalin, Pompa hidraulica cu doua debite, Brevet nr. 128856/30.05.2016
B.24. Dumitrescu Catalin, Veber Laurentiu, Georgescu Florin, Dumitrescu Liliana, Elevator hidraulic pentru sarcini industriale, Brevet nr. 127185/30.06.2016
B.25. Ionita Niculae, Dumitrescu Catalin, Incalzitor solar, Brevet nr. 127127/30.06.2016
B.26. Ionita Niculae, Dumitrescu Catalin, Pompa hidraulica cu trei debite, Brevet nr. 128857/30.06.2016
B.27. Ionita Niculae, Dumitrescu Catalin, Radoi Radu-Iulian, Pompa cu pistoane axiale cu debit variabil, Brevet nr. 130179/30.09.2016
B.28. Bostan Ion, MD; Dulgheru Valeriu, MD; Dumitrescu Catalin, RO; Ciobanu Oleg, MD; Ciobanu Radu, MD; Cozma Ion, MD, Sistem de orientare a panourilor fotovoltaice, Brevet nr. MD 4401 B1 2016.02.29 (obtinut in Republica Moldova)
B.29. Ionita Niculae, Popescu Teodor Costinel, Dumitrescu Catalin, Cilindru hidraulic, Brevet nr. 129387/28.02.2017
B.30. Ionita Niculae, Cristescu Corneliu, Popescu Teodor Costinel, Dumitrescu Catalin, Troliu hidraulic, Brevet nr. 129551/28.04.2017
B.31. Ionita Niculae, Dumitrescu Catalin, Turbina eoliana cu ax vertical, Brevet nr. 127671/30.05.2017
B.32. Cristescu Corneliu, Drumea Petrin, Dumitrescu Catalin, Krevey Petrica, Dispozitiv servohidraulic de testare pozitionare sub sarcina variabila, Brevet nr. 128107/2017
B.33. Ionita Niculae, Dumitrescu Catalin, Ilie Ioana, Pompa hidraulica cu roti dintate, avand doua sensuri de rotire, Brevet nr. 130273/28.09.2018
B.34. Ionita Niculae, Dumitrescu Catalin, Acumulator pneumohidraulic, Brevet nr. 128858/30.01.2019
B.35. Ionita Niculae, Dumitrescu Catalin, Tambur de infasurare cu actionare electrohidraulica, Brevet nr. 128858/30.01.2019
B.36. Cristescu Corneliu, Drumea Petrin, Dumitrescu Catalin, Krevey Petrica, Dispozitiv mecatronic de testare si cercetare a proceselor de conversie, stocare si utilizare a energiei hidrostatice, Brevet nr. 128226/29.05.2020
B.37. Cristescu Corneliu, Dumitrescu Catalin, Krevey Petrica, Ilie Ioana, Echipament pentru recuperarea energiei cinetice de rotatie, Brevet nr. 129664/30.06.2020
B.38. Cristescu Corneliu, Dumitrescu Catalin, Lepadatu Ioan, Vranceanu Genoveva - Marilena, Dumitrescu Liliana, Echipament mecano-hidraulic tractat pentru prepararea compostului si a biomasei vegetale, Brevet nr. 130347/27.11.2020
B.39. Cristescu Corneliu, Dumitrescu Catalin, Vrinceanu Genoveva, Dumitrescu Liliana, Ilie Ioana, Colector solar termic pliabil cu mecanisme de pliere si de orientare actionate hidraulic in functie de sarcina termica, Brevet nr. 131894/29.01.2021
B.40. Cristescu Corneliu, Dumitrescu Catalin, Georgescu Florin, Dumitrescu Liliana, Platforma de ridicare coborare persoane actionata de motor hidraulic liniar cu sistem hidraulic de recuperare a energiei, Brevet nr. 129553/26.02.2021
Proiecte
reprezentative la care am participat:
Programul / Proiectul |
Functia |
Perioada: de la... pana la... |
RELANSIN / Platforma ridicatoare pentru persoane cu handicap locomotor |
Director proiect |
2004 - 2006 |
INOVARE / Realizarea unor echipamente si sisteme cu randament termic ridicat pentru utilizarea energiei regenerabile folosind captatoarele solare |
Responsabil proiect |
2007 - 2009 |
INOVARE / Echipamente cu actionare hidraulica de inalta presiune sau pneumatica, pentru ridicat si transportat, cu destinatie auto si industriala |
Responsabil proiect |
2008 - 2010 |
PARTENERIATE / Modernizarea tehnologiilor de prelucrare primara a cerealelor in scopul obtinerii de produse agro-alimentare de calitate, corespunzatoare principiilor dezvoltarii durabile si securitatii alimentare |
Responsabil proiect |
2007 - 2010 |
PARTENERIATE / Cercetari privind conversia, recuperarea, stocarea si reutilizarea energiei hidrostatice in actionarile hidraulice |
Director proiect |
2008 - 2011 |
INOVARE - Cecuri de Inovare ctr. 73 CI / Realizarea unui dispozitiv hidraulic modernizat pentru dotarea masinilor de deformare plastica |
Responsabil proiect |
2012 |
Contract nr. 10 / 7.09.2016 - Stabilirea unor procedee de reparare a abaterilor de la proiectul produsului SISTEM HIDRAULIC DE RECUPERARE A ENERGIEI DE FRANARE - beneficiar SC MGC POWER TECH SRL Baia Mare |
Responsabil proiect |
2016 |
Contract NUCLEU 5N/2016, cod proiect PN-16-40-03-01 - Fizica proceselor de reducere a pierderilor energetice si de dezvoltare a resurselor energetice regenerabile prin utilizarea unor echipamente de inalta performanta |
Responsabil proiect |
2016 - 2017 |
Contract 265.745 din 01.06.2016 (IGPF) / nr. 305 din 27.05.2016, Programul Sectorial de Cercetare al MAI - PS 2.4.6 Solutii privind implementarea energiilor regenerabile la operationalizarea punctelor mobile de supraveghere a traficului naval (pontoane de acostare) ale P.F.R. |
Director proiect |
2016 |
Contract nr. 369168 / 2017 - P.S. 2.4.9. Proiect pilot privind implementarea solutiilor de energie regenerabila la punctele mobile de supraveghere a traficului naval (pontoane de acostare) ale P.F.R. |
Director proiect |
2016 - 2017 |
Establishing a high level proficiency nucleus in the field of increasing renewable energy conversion efficiency and energy independence by using combined resources, ctr. no. 37/2016, Competitiveness Operational Programme 2014-2020, Action 1.1.4 Attracting high-level personnel from abroad in order to enhance the R&D capacity |
Responsabil proiect |
2021 - 2020 |
Elaborarea de tehnologii eficiente energetic in aplicatiile de nisa ale fabricatiei subansamblelor mecanohidraulice la cerere si mentenantei echipamentelor hidraulice mobile - MENTEH, ctr. 6/2018, POC 2014-2020, Actiunea 1.2.3 - Parteneriate pentru transfer de cunostinte |
Director proiect |
2018 - 2022 |