An Experimental Investigation of the Performance of Cross-flow Hydro Turbines

Verma, Vinay Kumar; Gaba, Vivek Kumar; Bhowmick, Shubhankar

doi:10.1016/j.egypro.2017.11.084

Cited by 8 publications

(6 citation statements)

References 3 publications

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“…Verma et al [45] (2017) realizaron investigaciones experimentales de la variación del desempeño de la turbina tipo Michell-Banki de acuerdo con el ángulo de ataque, elevación y distancia horizontal del inyector, respecto al centro del rodete, con un modelo constituido por una turbina sin carcasa, para ser utilizado en instalaciones rurales. Concluyeron que, para un ángulo de ingreso entre el fluido y la periferia del rodete, cercano a los 8°, con una elevación del inyector de 0.13 m y una distancia horizontal de 0.26 m lograron un valor de eficiencia cercano al 93 %.…”

Section: Estado Del Arteunclassified

Consideraciones de diseño de una turbina Michell-Banki

Romero¹,

Velásquez²,

Chica³

2020

revuin

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Las turbinas Michell-Banki, también conocidas como turbinas de flujo cruzado, son maquinas hidráulicas utilizadaspara la producción y generación de energía en proyectos hidroeléctricos a pequeña escala. Desde su creación, la turbinade Michell-Banki ha sido objeto de múltiples investigaciones enfocadas a mejorar la eficiencia a fin de obtener elmáximo aprovechamiento del recurso hidraúlico disponible. En este trabajo se exponen las características principalesde la turbina, sus componentes y su principio de funcionamiento. Posteriormente se hace una descripción de lasinvestigaciones y aportes de mayor relevancia de cada estudio. Luego se hace un análisis del uso y aplicación de laturbina Michell-Banki y las oportunidades de aprovechamiento en el territorio colombiano con el objetivo de proveerel recurso energético a zonas que carecen del servicio y que cuentan con el recurso hídrico. Finalmente se describenlas consideraciones más importantes a tener en cuenta para el diseño de este tipo de turbinas

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Section: Estado Del Arteunclassified

Consideraciones de diseño de una turbina Michell-Banki

Romero¹,

Velásquez²,

Chica³

2020

revuin

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“…Efisiensi turbin cross flow [4] yang meliputi diameter luar, luas penampang, sudut, nozzle, jarak sudu, radius kelengkungan sudu, jumlah sudu, sudut keluar sudu, sudu kecepatan relatif pada saat menuju nozzle, serta efisiensi dan kecepatan sudut yang berbeda, ketinggian ujung nozzle, dan jarak ujung nozzle, perlu dilakukan perhitungan sesuai dengan data dilapangan [5].…”

Section: Pendahuluanunclassified

RANCANG BANGUN PEMBANGKIT LISTRIK TURBIN AIR MIKRO HIDRO TIPE CROSS-FLOW KAPASITAS 2.500 WATT Di Kp. MULYASARI -BOGOR JAWA BARAT

Azharul¹,

Dharmanto²,

Wilarso³

2020

mesin

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Untuk memenuhi kebutuhan listrik di malam hari dan produksivitas hasil pertanian di Kp. Mulyasari dilakukan rancang-bangun Turbin Pembangkit Listrik Tenaga Mikrohidro (PLTMH) yang dapat menghasilkan daya s/d 2.500 Watt. Mesin ini dirancang mudah dalam pemasang, mudah dioperasikan, perawatan yang murah. Jenis turbin yang dipilih adalah turbin air Cross-Flow untuk head rendah. Turbin beroperasi pada tekanan impuls, dimana energi potensial air diubah menjadi energi kinetik melalui nozel untuk mendorong sudu-sudu depan turbin. Dalam rancang bangun turbin ini, di rancang, agar mempunyai daya pakai yang lama, nilai investasi yang murah, biaya perawatan minimal sekali, biaya pemasang yang mudah, degnan digerakan oleh air, sehingga melestarikan sumber daya alam. Turbin dirancang berdasarkan data hasil survey lapangan di Kp. Mulyasari, dengan hasil; Head (H)= 1,85 m; Debit air (Q)=0,2 m 3 /s; Putaran turbin (rencana) (n)= 214 rpm; Effisiensi turbin (rencana )(ηt)= 68%; Massa jenis air (ρ)= 997.8 kg/m 3 . Dari hasil perhitungan, didapat spesifikasi rancangan turbin Cross-Flow sebagai berikut : Tinggi air jatuh (H) = 1,85 m; Debit air (Q) = 0,2 m 3 /s; Effisiensi turbin (rencana) (ηt) = 68%; Daya (N) = 2,497 kW; Putaran (n) =214 rpm; Kecepatan spesifik (ns) = 770,4138831 rpm; Diameter sudu jalan (DL) = 0,40 m; Diameter naaf (Dn) = 0,035 m; Lebar sudu pengarah (B) = 0,032 m; Jumlah sudu jalan = 26 buah.Kata kunci: Head, debit, turbin Cross-Flow, sudu pengarah/nozel, sudu jalan, daya turbin.

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“…The first category has typical characteristics of large flow rate and low head, such as a series of special hydro turbines have been dedicated to industrial circulating water system for power generation or axial fan driven, [9][10][11] and cross-flow hydro turbine has been developed for the micro hydropower with low head. [12][13][14][15] The second category has pressure above megapascals, meanwhile the flow rate is less, multistage pump as turbines and Pelton turbine had been used in these scenarios. [16][17][18] Although there is a better carbon emission reduction benefit, the payback period is long.…”

Section: Introductionmentioning

confidence: 99%

Study of a novel hydro turbine with ultra-small unit discharge in theoretical calculation and numerical simulation

Liu

Chen

et al. 2023

Advances in Mechanical Engineering

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A novel hydro turbine with the ultra-small unit discharge was suggested and studied for the first time. It was specially developed for hydraulic energy recovery with a smaller flow rate and medium available head, its highlight feature is straight blades in the radial direction. In this paper, the theoretical and numerical simulation of a novel hydro turbine was studied. First, with the working process and principles introduced, the theoretical models were established for the prediction of optimal unit speed, optimal unit discharge, and performance curves. Second, numerical simulation was carried out to study the performance of the novel turbine and verify the theoretical models. Different mesh quantity cases were investigated to select an accurate configuration. The numerical simulation predicted that optimal unit speed was 57.07 r/min, and optimal unit discharge was 0.0705 [Formula: see text]/s, while the specific speed was 42.3 m kW. Comparisons between theoretical calculation and numerical simulation show the accuracy of the theoretical models. Finally, a tail energy recovery runner was proposed to improve the performance of the novel turbine, and maximum efficiency was improved from 79.6% to 84.5%. The novel hydro turbine fills the blank working area between Pelton turbine and Francis turbine, and could be easily applied to engineering with low cost and simple manufacture.

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An Experimental Investigation of the Performance of Cross-flow Hydro Turbines

Cited by 8 publications

References 3 publications

Consideraciones de diseño de una turbina Michell-Banki

Consideraciones de diseño de una turbina Michell-Banki

RANCANG BANGUN PEMBANGKIT LISTRIK TURBIN AIR MIKRO HIDRO TIPE CROSS-FLOW KAPASITAS 2.500 WATT Di Kp. MULYASARI -BOGOR JAWA BARAT

Study of a novel hydro turbine with ultra-small unit discharge in theoretical calculation and numerical simulation

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