A high quality research requires modern, adequately equipped, experimentation facilities. In order to align the Romanian research to European standards in aerospace, energy and environment primary fields, COMOTI Romanian Research and Development Institute for Gas Turbines aims to increase the research capabilities and the competitiveness.
The Gas Turbines Experimentation Complex, employed in high scientific researches concerning the testing of last generation aviation gas turbines and the aviation and industrial gas turbines of the future, includes the following major structures:
- Test cell for turbojets in the 0 – 10,000 daN range, relocated metallic structure;
- Test cell for turbo-shaft power group in the 0 – 5.2 MW range, steel concrete new structure, under construction (TV2, TA-2, TURMO, TV3);
- Multipurpose structure (command room, liquid fuels room, offices, gas turbines preparation room, metrology shop, storages, lavatory and lockers) with electrical installation of power, general illumination and safety, water and sewage installation, heating and ventilation installation.
- Gas generators – derived from aviation gas turbines: AI20 GM gas generator which equipped a natural gas turbo-compressor group at STC ONEŞTI;
Technical equipments
The CExT’s technical equipments, comparable to similar installations used by renowned entities in the gas turbines field, embodied in specific technological facilities, adapted for a wide range of types of gas turbines:
- Installations of lubrication and cooling, of natural gas and liquid fuels feeding, of load dissipation (hydraulic, gas-dynamic, thermo-gas-dynamic and electric brakes), of instrumental air, of pneumatic and electric start, of fuel dosage, specific couplings, electric power installations, silencers, oil/air separators, separator vessel filter, natural gas compression installation with integrated command system; gearbox components, compressor case and multiplier case;
One of the current issues of high importance is the environment protection. Like other organisations involved in economical and industrial activities, the Gas Turbine Experimentation Complex will also explicitly implement the environment protection policy by endowing and incorporating new and efficient phonic and chemical environmental pollution reduction equipments. Equipments like: noise suppressors and air/oil separators (oil recovery efficiency from resulted vapours during functioning is of 95%), will be placed in experimentation areas, as well as, incorporated in the products delivered to beneficiary.
Beneficiaries
Based on its equipments, CExT was, and can be used by a variety of entities interested in performing research – development – innovation – manufacturing activities. CExT is available for carrying out research, testing, experimentation and laboratory educational activities in the field of turbojets, turboprops, turbo shafts and micro gas turbines, for all research and higher education institutions in Romania, as well as for interested companies from abroad. COMOTI provides the required experimental support for young professionals in training in elaborating diploma and PhD projects. In this context, COMOTI collaborates with the Faculty of Aerospace Engineering, Faculty of Material Science and Engineering of the University Politehnica of Bucharest and Military Technical Academy. COMOTI can provide to the entities specialized in aviation, TURBOMECANICA Bucureşti, TAROM, ROMAVIA, IAR Ghimbav and AEROSTAR Bacău, the Gas Turbine Experimentation Complex for performing tests / experimentation.
So far, COMOTI has performed research activities for developing power groups in the power range of 0.7 – 2.5 MW, using aeroderivative or industrial gas turbines and being the only R&D Romanian entity with practical results in this field. The gas turbines power groups have been tested in the experimentation complex and then valorised in technical – economical applications. Economical users that will further on benefit from the CExT services are the big companies which are equipped with turbo-compressor and cogeneration groups: DISTRIGAZ, OMV PETROM SA, TERMICA Botoşani and TRANSGAZ.
In the last year, in the CExT were performed activities for several R&D national projects:
In the framework of the National Research, Development and Innovation Plan (PNCDI II):
- SOTLURB, The project aimed to the valorisation of biogas by using it in aeroderivative gas turbines. In this project, COMOTI has developed an installation for simulating the biogas by mixing, in optimal proportions, of natural gas and CO2, and tested, in CExT, the TV2 gas turbine modified to operate on biogas.
In the framework of NUCLEU Programme, Excellence, Practical and Experimental Research in the field of bladed machineries, contribution to the convergence with the EU Research Area in 2010, during 2009 and 2011, COMOTI has carried out 14 projects by means of CExT.
Through its testing capabilities in a wide range of gas turbines, CExT has extensive offerings and, especially, at attractive prices for the European market. A good example of alignment with international requirements is the contribution of CExT in the last three years to major international infrastructure projects:
- ABRANEW (Increase of gas turbine efficiency of industrial turbine motors, with entry temperatures higher than 1000oc, through clearance reduction between rotor blade and casing, using abrasion materials bedding), in partnership (along with Nuovo Pignone SPA Italia; Bremer Institut fuer Angewandte Strahltechnik Germania; Cranfield University Marea Britanie; The Imperial College of Science, Technology and Medicine Marea Britanie; Consorzio Interuniversitario Nazionale di Scienza e Tecnologia di materiali Italia; Office National D’Etudes et Recherches Aerospatiale Franta; Sulzer Meteo AG Elvetia; Teer Coatings LTD Marea Britanie and Turbocoating SPA Italia) and financed by EU through FP 5, in which COMOTI participated with the CExT infrastructure for bench testing of the unmodified rotor, to establish a reference and, respectively, of the rotor and casing with the corresponding bedding for determining their performances;
- TEENI (Turbo-shaft Engine Exhaust Noise Identification), in FP 7, http://www.xnoise.eu/index.php?id=383 . The project coordinator is Trubomeca (FR) and COMOTI participates as partner together with ANOTEC (ES), AVIO (IT), DLR (DE), EPFL (CH), INASCO (HE), Microflown Technologies (NL), ONERA (FR), TCD (IE). In this project, the CExT infrastructure is used for comparing the exhaust noise of different type of technological solutions for helicopter gas turbines.
- SILENCER (Aircraft noise pollution reduction for significant decrease of the impact on human settlements), financed through FP 5, in which Snecma (FR) was the coordinator and COMOTI participated, with DLR (DE), by manufacturing and control of the parts, more precisely, of the titanium alloy fan blisk, http://www.xnoise.eu/index.php?id=85 .