Michell-Banki a Promise Turbine for Pico-Hydro in Water Irrigation Channel

2020 ◽  
pp. 305-317
Author(s):  
Lenin Ibañez ◽  
Luis Escobar ◽  
Andrés Hidalgo ◽  
Carlos Gordón ◽  
Myriam Cumbajín
Keyword(s):  
Irrigation Channel

The Irrigation Canal Stele of the Urartian King Argišti I Recently Discovered in Erciş/Salmanağa, North of Lake Van

2019 ◽  
Vol 109 (2) ◽  
pp. 204-213
Author(s):  
Kenan Işık
Keyword(s):  
Irrigation Canal ◽  
Lake Van ◽  
Irrigation Channel ◽  
Eastern Turkey

Abstract This article presents a recently-found inscribed stele belonging to the Urartian king Argišti I (ca. 785/80–756 BC). The stele was erected to commemorate the inauguration of an irrigation channel running off the Dainalitini Stream (modern Deliçay), north of Lake Van in Eastern Turkey. The inscription on this stele is important, both for localizing the Dainalitini Stream mentioned in Urartian texts, as well as understanding sacrificial rituals in agricultural contexts.

scholarly journals PENGARUH VEGETASI TERHADAP TAHANAN ALIRAN PADA SALURAN IRIGASI

2019 ◽  
Vol 2 (2) ◽  
pp. 107-113
Author(s):  
I.E. Sulastri Sihotang ◽  
Eldina Fatimah ◽  
Masimin Masimin
Keyword(s):  
Flow Velocity ◽  
Field Observation ◽  
Flow Resistance ◽  
Grid Method ◽  
Flow Depth ◽  
Secondary Channel ◽  
Irrigation Channel ◽  
Velocity Flow

Irrigation channel in D.I. Timbang Deli, Deli Serdang district Sumut province has a total area of 520 Ha and a 5000 meter long secondary channel. Irrigation channel in D.I. Timbang Deli overgrown vegetation at the base and wall of the channel so it is expected to affect roughness. The objective of the study was the flow resistance with the variation of vegetation volume to the variation of the discharge. The method used in this study is field observation by measuring flow velocity, flow depth and vegetation volume (VT) on trapezoidal tract width of 3.75 m and height of 0.90 m along 154 m. Measurements were performed on 3 points of upstream, middle and downstream channels and 5 transverse dots X1 through X5 4 times with D1 debit variation of 1.32 m³/s and D2 of 0.98 m³/s. The dominant vegetation channels are rigid. Measurement velocity using current meter while for vegetation volume (VT) using grid method. The results showed that vegetation volume VT0 (0,00 m³/0,00%), VT1 (52,417 m³/21,14%), VT2 (70,7921 m³/24,51%) and VT3 (83,053 m³/30,42%). It is seen that the increase in vegetation volume can affect the flow resistance. The result of measurement increased the resistance of flow to VT0 0,052, VT1 equal to 0,062 with percentage 16,13%, VT2 equal to 0,108 with percentage 51,85% and VT3 equal to 0,122 with percentage 57,37% atD1. Meanwhile, at D2 there is an increase of flow resistance to VT0 by 0,044, VT1 is 0,052 with percentage 15,38%, VT2 equal to 0,058 with percentage 24,14% and VT3 equal to 0,070 with percentage 37,14%. This shows that the flow resistance VT0 is smaller than the flow resistance VT1, VT2 and VT3. From the above results are expected to conduct O P channels by surrounding communities and related government.

scholarly journals Rancang Bangun Sistem Pembangkit Listrik Tenaga Air Menggunakan Konsep Hydrocat

2021 ◽  
Vol 4 (1) ◽  
pp. 7
Author(s):  
Syaiful Anwar ◽  
Muhamad Taufiq Tamam ◽  
Itmi Hidayat Kurniawan
Keyword(s):  
Power Generation ◽  
Power Plant ◽  
System Design ◽  
Electrical Energy ◽  
Hydroelectric Power ◽  
Depth Level ◽  
Irrigation Channel ◽  
Water Turbine ◽  
The Times ◽  
Made In

Seiring perkembangan jaman, saat ini energi listrik telah menjadi salah satu kebutuhan primer dalam kehidupan sehari-hari, baik untuk melakukan pekerjaan ataupun kegiatan yang lainnya. Pembangkit Listrik Tenaga Air atau PLTA dengan menggunakan konsep hydrocat merupakan sebuah konsep pembangkit listrik yang diciptakan untuk aliran jalur irigasi yang memiliki ukuran tidak terlalu besar dan tingkat kedalamannya yang rendah. Oleh karena itu dibuatlah rancang bangun sistem pembangkit listrik menggunakan konsep hydrocat. Pada penelitian ini menggunakan generator DC sebagai sumber tenaga listrik dan menggunakan jenis turbin undershot. Penelitian ini dilakukan di Desa Karang Cegak Kecamatan Kutasari Kabupaten Purbalingga. Beban pada penelitian ini menggunakan lampu LED SMD 1,2 Watt, 2,4 Watt 3,6 Watt, dan 4,8 Watt. Alat ini mampu menghasilkan putaran pulley turbin air sebesar 69,2 rpm, 60,8 rpm, 59,0 rpm, 58,7 rpm, 57,1 rpm, dan 56,7 rpm. Putaran pulley generator DC sebesar 595,9 rpm, 586,1 rpm, 520,1 rpm, 506,2 rpm, dan 496,0 rpm. Besar tegangan yang dihasilkan 31,86 Volt, 9,20 Volt, 8,61 Volt, 8,38 Volt, dan 8,25 Volt. Besar arus yang dihasilkan sebesar 0,02 Ampere, dan besar daya yang dihasilkan sebesar 0,1836 Watt, 0,1718 Watt, 0,1671 Watt, dan 0,165 Watt.Along with the development of the times, nowadays electrical energy has become one of the primary needs in everyday life, both for doing work or other activities. Hydroelectric Power or Hydroelectric Power using the hydrocat concept is a power generation concept created for irrigation channel flow that is not too large and has a low depth level. Therefore, a power plant system design using the hydrocat concept was made. In this study using a DC generator as a source of electricity and using a type of undershot turbine. This research was conducted in Karang Cegak Village, Kutasari District, Purbalingga Regency. The load in this study uses 1.2 Watt SMD LED lamps, 2.4 Watt 3.6 Watt, and 4.8 Watt. This tool is capable of producing water turbine pulley rotation of 69.2 rpm, 60.8 rpm, 59.0 rpm, 58.7 rpm, 57.1 rpm, and 56.7 rpm. DC generator pulley rotation of 595.9 rpm, 586.1 rpm, 520.1 rpm, 506.2 rpm, and 496.0 rpm. The resulting voltages are 31.86 Volts, 9.20 Volts, 8.61 Volts, 8.38 Volts, and 8.25 Volts. The amount of current generated is 0.02 Ampere, and the amount of power generated is 0.1836 Watt, 0.1718 Watt, 0.1671 Watt, and 0.165 Watt.

scholarly journals Temporal and Spatial Distributions of Ecological Vulnerability under the Influence of Natural and Anthropogenic Factors in an Eco-Province under Construction in China

2018 ◽  
Vol 10 (9) ◽  
pp. 3087 ◽  
Author(s):  
Qian Ding ◽  
Xun Shi ◽  
Dafang Zhuang ◽  
Yong Wang
Keyword(s):  
Yangtze River ◽  
Principal Component ◽  
Anthropogenic Factors ◽  
Land Resource ◽  
The Yangtze River ◽  
Irrigation Channel ◽  
The North ◽  
Ecological Vulnerability ◽  
Under Construction ◽  
Natural And Anthropogenic Factors

Ecological vulnerability evaluations can provide a scientific foundation for ecological environment management. Studies of ecological vulnerability have mainly focused on typical ecologically vulnerable regions with poor natural conditions or severe human interference, and such studies have rarely considered eco-provinces. Taking Jiangsu, an eco-province under construction in China, as the study area, we evaluated the spatiotemporal distributions of ecological vulnerability in 2005, 2010 and 2015 at the kilometer grid scale and analyzed the effects of natural and anthropogenic factors on ecological vulnerability. The pressure state response model (PSR), geographic information systems (GIS), spatial principal component analysis, spatial autocorrelation analysis, and correlation analysis methods were used. The results of the study are as follows: (i) the effects of anthropogenic factors on ecological vulnerability are greater than those of natural factors, and landscape evenness and the land resource utilization degree are the main factors that influence ecological vulnerability. (ii) Jiangsu Province is generally lightly to moderately vulnerable. Slight vulnerability is mainly observed in areas with water bodies. Light vulnerability is concentrated in paddy fields between the Main Irrigation Channel of North Jiangsu and the Yangtze River. Medium, heavy and extreme vulnerability areas are mainly composed of arable and built-up land. Medium vulnerability is mainly distributed to the north of the Main Irrigation Channel of North Jiangsu; heavy vulnerability is scattered to the south of the Yangtze River and in north-western hilly areas; and extreme vulnerability is concentrated in hilly areas; (iii) Ecological vulnerability displays a clustering characteristic. High-high (HH) regions are mainly distributed in heavy and extreme vulnerability regions, and low-low (LL) regions are located in slight vulnerability areas. (iv) Ecological vulnerability has gradually deteriorated. From 2005 to 2010, the vulnerability in hilly areas considerably increased, and from 2010 to 2015, the vulnerability in urban and north-eastern coastal built-up land areas significantly increased. Emphasis should be placed on the prevention and control of ecological vulnerability in high-altitude, urban and coastal areas.

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