Design of small bulb turbines with unequal specific work distribution of the runner's elementary stages
Апстракт
Uzimajući u obzir dosadašnja saznanja iz oblasti projetovanja turbomašina, u ovom radu je prikazan metod projektovanja malih cevnih turbina sa različitim jediničnim radovima elementarnih stupnjeva turbinskog kola u okolini glavčine. Data je funkcija raspodele jediničnih radova elementarnih stupnjeva turbinskog kola, pri kojoj osnosimetrične strujne površine u turbinskom kolu zanemarljivo malo odstupaju od cilindričnih strujnih površina. U datoj funkciji raspodele, jedinični rad elementarnog stupnja turbinskog kola može se, uz glavčinu, smanjiti i na 60% proračunskog jediničnog rada turbinskog kola, a da strujne površine u obtnom kolu budu priližno cilindrične.
Regarding the present state of knowledge in the field of the turbo machinery design, the method for designing small bulb turbines with unequal specific work distribution of the turbine runner's elementary stages near the hub is presented in the paper. The distribution function of specific work of all the elementary stages is obtained, according to which the averaged axisymmetric flow surfaces of the turbine runner have a negligibly small deviation from the cylindrical flow surfaces. The specific work of the near-the-hub elementary stages, in the given distribution function, can be reduced up to 60% of the required (design) specific work, still achieving nearly cylindrical flow surfaces.
Кључне речи:
osnosimetrične strujne površine / jedinični rad / elementarni stupanjevi / cevna turbina / Specific Work / Elementary Stages / Bulb Turbine / Axisymmetric Flow SurfacesИзвор:
Facta universitatis - series: Mechanical Engineering, 2014, 12, 1, 73-84Издавач:
- Univerzitet u Nišu, Niš
Финансирање / пројекти:
- Ревитализација постојећих и пројектовање нових микро и мини хидроелектрана (од 100 до 1000 kW) на територији јужне и југоисточне Србије (RS-MESTD-Technological Development (TD or TR)-33040)
Колекције
Институција/група
Mašinski fakultetTY - JOUR AU - Bogdanović-Jovanović, Jasmina AU - Bogdanović, Božidar AU - Božić, Ivan PY - 2014 UR - https://machinery.mas.bg.ac.rs/handle/123456789/1828 AB - Uzimajući u obzir dosadašnja saznanja iz oblasti projetovanja turbomašina, u ovom radu je prikazan metod projektovanja malih cevnih turbina sa različitim jediničnim radovima elementarnih stupnjeva turbinskog kola u okolini glavčine. Data je funkcija raspodele jediničnih radova elementarnih stupnjeva turbinskog kola, pri kojoj osnosimetrične strujne površine u turbinskom kolu zanemarljivo malo odstupaju od cilindričnih strujnih površina. U datoj funkciji raspodele, jedinični rad elementarnog stupnja turbinskog kola može se, uz glavčinu, smanjiti i na 60% proračunskog jediničnog rada turbinskog kola, a da strujne površine u obtnom kolu budu priližno cilindrične. AB - Regarding the present state of knowledge in the field of the turbo machinery design, the method for designing small bulb turbines with unequal specific work distribution of the turbine runner's elementary stages near the hub is presented in the paper. The distribution function of specific work of all the elementary stages is obtained, according to which the averaged axisymmetric flow surfaces of the turbine runner have a negligibly small deviation from the cylindrical flow surfaces. The specific work of the near-the-hub elementary stages, in the given distribution function, can be reduced up to 60% of the required (design) specific work, still achieving nearly cylindrical flow surfaces. PB - Univerzitet u Nišu, Niš T2 - Facta universitatis - series: Mechanical Engineering T1 - Design of small bulb turbines with unequal specific work distribution of the runner's elementary stages EP - 84 IS - 1 SP - 73 VL - 12 UR - https://hdl.handle.net/21.15107/rcub_machinery_1828 ER -
@article{ author = "Bogdanović-Jovanović, Jasmina and Bogdanović, Božidar and Božić, Ivan", year = "2014", abstract = "Uzimajući u obzir dosadašnja saznanja iz oblasti projetovanja turbomašina, u ovom radu je prikazan metod projektovanja malih cevnih turbina sa različitim jediničnim radovima elementarnih stupnjeva turbinskog kola u okolini glavčine. Data je funkcija raspodele jediničnih radova elementarnih stupnjeva turbinskog kola, pri kojoj osnosimetrične strujne površine u turbinskom kolu zanemarljivo malo odstupaju od cilindričnih strujnih površina. U datoj funkciji raspodele, jedinični rad elementarnog stupnja turbinskog kola može se, uz glavčinu, smanjiti i na 60% proračunskog jediničnog rada turbinskog kola, a da strujne površine u obtnom kolu budu priližno cilindrične., Regarding the present state of knowledge in the field of the turbo machinery design, the method for designing small bulb turbines with unequal specific work distribution of the turbine runner's elementary stages near the hub is presented in the paper. The distribution function of specific work of all the elementary stages is obtained, according to which the averaged axisymmetric flow surfaces of the turbine runner have a negligibly small deviation from the cylindrical flow surfaces. The specific work of the near-the-hub elementary stages, in the given distribution function, can be reduced up to 60% of the required (design) specific work, still achieving nearly cylindrical flow surfaces.", publisher = "Univerzitet u Nišu, Niš", journal = "Facta universitatis - series: Mechanical Engineering", title = "Design of small bulb turbines with unequal specific work distribution of the runner's elementary stages", pages = "84-73", number = "1", volume = "12", url = "https://hdl.handle.net/21.15107/rcub_machinery_1828" }
Bogdanović-Jovanović, J., Bogdanović, B.,& Božić, I.. (2014). Design of small bulb turbines with unequal specific work distribution of the runner's elementary stages. in Facta universitatis - series: Mechanical Engineering Univerzitet u Nišu, Niš., 12(1), 73-84. https://hdl.handle.net/21.15107/rcub_machinery_1828
Bogdanović-Jovanović J, Bogdanović B, Božić I. Design of small bulb turbines with unequal specific work distribution of the runner's elementary stages. in Facta universitatis - series: Mechanical Engineering. 2014;12(1):73-84. https://hdl.handle.net/21.15107/rcub_machinery_1828 .
Bogdanović-Jovanović, Jasmina, Bogdanović, Božidar, Božić, Ivan, "Design of small bulb turbines with unequal specific work distribution of the runner's elementary stages" in Facta universitatis - series: Mechanical Engineering, 12, no. 1 (2014):73-84, https://hdl.handle.net/21.15107/rcub_machinery_1828 .