Design basics of a small hydro turbine plant for capacity building in sub-Saharan Africa

Ebhota, Williams S.; Inambao, Freddie L.

doi:10.1080/20421338.2015.1128039

Cited by 17 publications

(8 citation statements)

References 5 publications

(3 reference statements)

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“…, k; k is the total number of factors; β 0 is the y intercept, ∑ k i=1 β i x i is the Linear Effect; ∑ k i=1 β ii x 2 i is the Quadratic effect; and ∑ k−1 i=1 • ∑ k j=i+1 β ij x i x j is the cross-product effect. From research on the hydroelectric generator system driven by the vortex force [21][22][23][24][25][26], the waterpower equation [30][31][32] is as follows:…”

Section: Methodsmentioning

confidence: 99%

The Efficiency Comparison of Hydro Turbines for Micro Power Plant from Free Vortex

Sritram

Suntivarakorn

2021

Energies

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In this research paper, the relationship between a crossflow turbine and propeller turbine size changes and the pond size in a free vortex power generation system was investigated. This relationship can be written in the form of a new mathematical equation using the principles of the response surface methodology (RSM) method. This study aimed to compare the efficiency of a crossflow turbine and propeller turbine to enhance a micro power plant from free vortex. The pond size in a micro power plant from free vortex was 1 m in diameter and 0.5 m in height with a 0.2 m outlet drain at the bottom. All turbines were tested at different water flowrates of 0.2, 0.3, 0.4, 0.5, and 0.6 m3/s to identify the rpm, water head, voltage, and electric current to access the waterpower, power output, and overall efficiency. At a 0.02 m3/s water flowrate, the crossflow turbine had greater overall efficiency than the propeller turbine, reaching 9.09% efficiency. From the comparison of the results of the two turbines used in the 0.5 m high cylinder-shaped generator pond, the turbine type, turbine size (height and diameter), number of blades, and water flowrate are key factors that affect the overall efficiency. The crossflow turbine can achieve greater efficiency than the propeller turbine in this generator system.

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Section: Methodsmentioning

confidence: 99%

The Efficiency Comparison of Hydro Turbines for Micro Power Plant from Free Vortex

Sritram

Suntivarakorn

2021

Energies

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“…Dua parameter ini (Hn dan Q) adalah studi hidrologi data sumber air. Setelah karakteristik aliran, ketinggian atau elevasi di atas permukaan air dari turbin diketahui, , maka dapat melakukan perhitungan dasar untuk menentukan jenis turbin yang akan diterapka (Ebhota & Inambao, 2016).…”

Section: Pendahuluanunclassified

Optimasi Jumlah, Posisi, Dan Diameter Nozel Turbin Pelton Melalui Analisis QFD Dan Uji Eksperimental

Murtalim¹,

Amir²,

Sukarman³

et al. 2021

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Penduduk Indonesia belum sepenuhnya mendapat layanan penerangan listrik, terutama yang berada di daerah terpencil dan berada di lereng-lereng bukit, sementara di lokasi tersebut terdapat potensi energi yang cukup untuk mengerakkan turbin air sebagai penggerak generator listrik. Turbin pelton adalah salah satu jenis turbin impuls yang performancenya dipengaruhi oleh debit air, nosel, dan jumlah sudu, atas dasar tersebut penulis menyajikan artikel yang menerapkan metode quality function deployment (QFD) dan pengujian eksperimental terhadap prototipe turbin pelton di laboratorium Universitas Buana Perjuangan Karawang. Langkah-langkah dalam penelitian ini meliputi studi literatur dan lapangan, perancangan, pembuatan alat uji, pengujian, analisis data, dan kesimpulan. Variasi pengujian berdasarkan pada diameter, posisi dan jumlah nosel terhadap sudu turbin yang berjumlah 12 buah dan berdiameter150 mm, sedangkan untuk pembangkit listriknya menggunakan generator mini berdaya 350 watt. Hasil pengujian yang diperoleh adalah daya input (Pin) terbesar dengan nilai 73,6 watt terdapat pada dn 9 mm dengan posisi nozel atas dan bawah dan jumlah nozel 2 buah. Daya turbin (Pt) ) terbesar dengan nilai 70,1 watt terdapat pada dn= 6 mm, posisi nosel di atas dan jumlah nozel 1 buah, efisiensi turbin (ηt) terbesar dengan nilai 95,4 % terjadi pada dn = 9 mm dengan jumlah nosel 1 buah dengan posisi nosel di atas, daya generator (Pgen) terbesar 11,7 watt terjadi pada dn = 9 mm dengan jumlah nosel 1 buah dengan posisi nosel di atas, effisiensi generator (ηgen) terbesar dengan nilai 17,9 % terjadi pada dn = 9 mm dengan jumlah nosel 1 buah dengan posisi nosel di atas dan efisiensi sistem terbesar (ηsis) 17,1% terjadi pada dn = 9 mm dengan jumlah nosel 1 buah d posisi nosel di atas. Kata kunci: Turbin pelton, quality function deployment (QFD), pengujian eksperimental The Indonesian population has not fully received electric lighting services, especially in remote areas and on hillsides, while there is sufficient energy potential to drive water turbines to drive electricity generators. Pelton turbine is one type of impulse turbine whose performance is influenced by water discharge, nozzle, and some blades, on this basis the author presents an article that applies the QFD method and experimental testing of the Pelton turbine prototype in thelaboratory of Buana Perjuangan University, Karawang. The steps in this research include literature and field studies, design, manufacture of test equipment, testing, data analysis, and conclusions. The variation of the test is based on the diameter, position, and some nozzles for the turbine blades, which are 12 pieces and 150 mm in diameter, while for the power plant it uses a 350-watt mini generator. The test results obtained are the largest input power (Pin) with a value of 73.6 watt is found at dn 9 mm with the position of the top and bottom nozzles and the number of nozzles is 2 pieces. The largest turbine power (Pt) with a value of 70.1 watts is found at dn = 6 mm, the position of the nozzle is above and the number of nozzles is 1, the largest turbine efficiency (ηt) with a value of 95.4% occurs at dn = 9 mm with a total 1 nozzle with the nozzle position is above, the largest generator power (Pgen ) of 11.7 watt occurred at dn = 9 mm with some 1 nozzle with the nozzle position is above, the largest generator efficiency (ηgen ) with a value of 17.9% occurred in dn = 9 mm with the number of nozzles 1 piece with the nozzle position on the top and the largest system efficiency (ηsis) 17.1% % occurred at dn = 9 mm with the number of nozzles 1 piece with the nozzle position on the top. Keyword: Pelton turbine, quality function deployment (QFD) experimental testing

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“…Analisis dan kajian studi kelayakan PLTM di Indonesia yang meliputi kelayakan ekonomis, teknis, sosial dan lingkungan secara umum telah dikaji dalam beberapa artikel ilmiah [2], [3], [4], [5], [6]. Selain itu, terdapat beberapa artikel yang membahas perencanaan detail desain mengenai pekerjaan sipil, hidromekanikal maupun mekanikal elektrikal [7], [8], [9], [10], [11], [12].…”

Section: Jetm: Jurnal Energi Dan Teknologi Manufakturunclassified

Perencanaan Turbin Air Kapasitas 2 x 1 MW di PLTM Cianten 1 Kabupaten Bogor

Asrori

Yudiyanto²

2018

JETM

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Minihidro Cianten 1 Power Plant (PLTM C-1) capacity 2 x 1 MW, located in Cianten river, Cibunian village, Pamijahan district, Bogor district. Preliminary planning data is with design head (Hd) = 27.7 m, design discharge per unit (Qd) = 4.0 m3 / s, power house elevation = +529,0 m. Turbine planning includes calculation of rated power output, type selection and number of turbines, specific speed velocity and runaway speed, runner diameter, turbine elevation setting, spiral casing and draft tube dimensions and pre-powerhouse design. Turbine performance and stability including pressure rise, speed rise and weighted average efficiency are also planned. Planning is based on calculations from international standard hydro powerplant planning guidance. The results of the calculations are verified by software and catalog of turbine manufacturers. The turbine specification results are as follows: 2 horizontal francis units, rated output power / unit (Pr) = 1000 kW (1 MW), turbine spin (n) = 600 rpm, turbine efficiency (T) = 0.92, (ns) = 298.6 rpm (M-kW), runaway speed = 1219 rpm, runner diameter = 0.769 m, runner weight (WR) = 294.05 kg, total turbine weight (WT) = 3060,37 kg. The stability of turbine operation is declared safe where the value of speed rise and pressure rise are 44.39% and 19.39% respectively. While the performance as a warranty from turbine manufacturers expressed with the value of weighted average efficiency of 88.67%.

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Design basics of a small hydro turbine plant for capacity building in sub-Saharan Africa

Cited by 17 publications

References 5 publications

The Efficiency Comparison of Hydro Turbines for Micro Power Plant from Free Vortex

The Efficiency Comparison of Hydro Turbines for Micro Power Plant from Free Vortex

Optimasi Jumlah, Posisi, Dan Diameter Nozel Turbin Pelton Melalui Analisis QFD Dan Uji Eksperimental

Perencanaan Turbin Air Kapasitas 2 x 1 MW di PLTM Cianten 1 Kabupaten Bogor

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