Abstract
The article presents experimental data of microturbine stages with small outlet nozzle angles of less than 9 degrees which can be used as a part of power plants for sea and river boats. The main aim of the research was to define the complicated variation of studied microturbines effectiveness with different combination of examined factors. The research of model stages of microturbines with small outlet nozzle angles carried out with the analysis of the results based on statistical methods revealed relatively high efficiency for this turbine class. So, the continuation of the research in this field seems to be prospective. Maximum efficiency of model stages was 0,62 with optimal combination of arrangement factors and operation conditions which were defined by imitation research with regression type mathematical model.
Keywords: microturbine, nozzle diaphragm, rotor, turbine, efficiency.
References
1. Kler А.М., Zakharov Y.B., Potanina Y.M. Matched parameter optimization of refrigerated wheelspace of gas turbine and parameters of gas turbine plant and combined cycle plant cycle. Teplofizika i aeromekhanika [Thermophysics and Aeromechanics]. 2014, vol. XXI, № 3, pp. 401-410. (In Russian)
2. Kuzhetsov Y.P., Chuvakov A.B. Experimental unit for small turbine stages research. Mashinostroenie [Engineering]. 2013, № 4, pp. 58-64. (In Russian)
3. Agulnik A.B., Din T.Z. Calculated research of small capacity gas turbine plant parameters on basis of air-engines for "wet" compression. Nauchno-tekhnicheskiy vestnik Povolzh'ya [Scientific and Technical Bulletin of Volga Region]. 2013. № 4. pp. 36¬39. (In Russian)
4. Erokhin A.P., Deniskin Y.I. Multiplication of airframes parametric models. Estestvennye i tekhnicheskie nauki [Natural Sciences and Technology]. 2013, № 4, pp. 270-273. (In Russian)
5. Senderov S.M. Metodologiya i praktika issledovaniya problem energeticheskoy bezopasnosti Rossii s vydeleniem roli gazovoy otrasli. Avtoref. diss, na soiskanie uchenoy stepeni doktora tekhn. nauk [Methodology and practice of research on Russia energy security problems singling out gas branch. Abstract of a thesis for a doctor's degree in engineering science]. Melentiev Energy Systems Institute of Siberian Branch of the Russian Academy of Sciences, Irkutsk, 2008.
6. Likhachev D.S., Kulagin V.A. Three-dimensional simulation of cavitation effects of turbo-machines. Kompressornaya tekhnika i pnevmatika [Compressor Equipment and Pneumatics]. 2009, № 6, pp. 29-32. (In Russian)
7. Fershalov Y.Y., Khankovich I.N., Minaev A.N, Karastelev B.Y, Yakubovsky Y.V., Konchakov E.I. Ratio of operation conditions to efficiency factor of low flow rate turbines stages. Nauchnoe obozrenie [Scientific Review]. 2012, № 5, pp. 425-439. (In Russian)
8. Fershalov Y.Y., Khankovich I.N., Minaev A.N, Karastelev B.Y., Yakubovsky Y.V, Konchakov E.I. Ratio of arrangement factors to efficiency factor of low flow rate turbines stages. Nauchnoe obozrenie [Scientific Review]. 2012, № 5, pp. 440-450. (In Russian)
9. Fershalov Y.Y. Sovershenstvovanie sverkhzvukovykh osevykh maloraskhodnykh turbin: dissertatsiya na soiskanie uchenoy stepeni kandidata tekhnicheskikh nauk [Development of supersonic axial low flow rate turbines: thesis for a candidate's degree in engineering science]. Vladivostok, 2000.
10. Fershalov Y.Y. Technique of physical simulation of gas-dynamic processes in turbomachines wheelspace. Izvestiya vysshikh uchebnykh zavedeniy. Aviatsionnaya tekhnika [News-bulletin of Universities. Aeronautical Engineering]. 2012, № 4, pp. 71-74. (In Russian)
11. MorozovaN.T. Current problems of designing turbine drives as a part of power plants. V sbornike: Aktual'nye problemy sozdaniya i ekspluatatsii teplovykh dvigateley v usloviyakh Dal'nevostochnogo regiona Rossii materialy Mezhdunarodnoy nauchno-tekhnicheskoy konferentsii "Dvigateli 2013". pod redaktsiey VA. Lashko [In collection: Current Problems of Design and Operation of Heat-engines in Russian Far Eastern Conditions. International Scientific and Technical Conference Proceedings "Engines of 2013". Edited by VA. Lashko]. 2013, pp. 260-263. (In Russian)
12. Morozova NT., Lutsenko VA. Current methods of designing marine low flow rate turbine drives. V sbornike: Nauka, obrazovanie, obshchestvo: problemy i perspektivy razvitiya sbornik nauchnykh trudov po materialam Mezhdunarodnoy nauchno-prakticheskoy konferentsii [In collection: Science, Education, Society: Problems and Prospects for Future Development. Collection of Scientific Papers on International Research and Practice Conference Proceedings]. Tambov, 2014, pp. 107-109. (In Russian)
About authors
Ibragimov Damir - Far Eastern Federal University, 8, Sukhanova st., 690091, Vladivostok, Russia, e-mail: damir-vl@mail.ru
Porshkevich Viktor - Far Eastern Federal University, 8, Sukhanova st., 690091, Vladivostok, Russia, e-mail: 717276@mail.ru
Kamaev Nikolay - Far Eastern Federal University, Vladivostok, 8, Sukhanova st., 690091, Vladivostok, Russia, e-mail: nikolai969.97@mail.ru
Yurtaev Aleksandr - Far Eastern Federal University, 8, Sukhanova st., 690091, Vladivostok, Russia, e-mail: al.yurtaev@mail.ru
Issue: 46/47 (2017)
For citation: D.L. Ibragimov, V.V. Porshkevich, N.A. Kamaev, A.A. Yurtaev. Effectiveness of microturbines nozzles with outlet angles of less than 9 degrees. Research Bulletin by Russian Maritime Register of Shipping. 2017, No. 46/47, pp. 92-97.
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