UJI TERAP PEMBANGKIT LISTRIK TENAGA AIR SKALA PICOHYDRO DI KABUPATEN BANJARNEGARA

2017 ◽  
Vol 15 (2) ◽  
pp. 189-206
Author(s):  
Rachman Djamal ◽  
Tri Risandewi
Keyword(s):  
Power Plant ◽  
Water Discharge ◽  
Early Morning ◽  
Dry Season ◽  
Turbine Generator ◽  
Technical Application ◽  
The People ◽  
Water Container ◽  
Water Mill ◽  
Overflow Channel

This study aims to determine the technical application of picohydro power plant (making design and application test) in Pandansari Village, Wanayasa District, Banjarnegara Regency. The result of technical analysis of picohydro power plant is capable of producing 7.200 watt or 7,2 kilowatts of electric power. Based on the observation and calculation of water discharge in July-August 2017, the water debit required to run the generator on picohydro power plant is insufficient (less than 30 liters / sec) due to the months already entering the dry season in Banjarnegara Regency and also because some of the water debit is used by waterwheel to increase water supply to the water container / reservoir belonging to the people of Pandansari Village. During the dry season, the picohydro power plant can be used when operated alternately with a water mill or set the time of use for each water mill used in the morning until late afternoon, while the picohydro power plant is used during the afternoon until night or early morning when people need electricity for their daily needs. The next alternative is to place a second picohydro / turbine generator under the first turbine utilizing waste water from the first turbine with a height difference of at least 2 meters or more. If during the rainy season, there is a very heavy flow of water from above then the overflow can be disbursed / dumped down through the overflow channel so that the performance of the picohydro generator is not disturbed

scholarly journals Pengendali Putaran Turbin Pltmh Menggunakan Arduino

2020 ◽  
pp. 90-96
Author(s):  
Okta Andrica Putra
Keyword(s):  
Power Plant ◽  
Rotation Speed ◽  
Water Discharge ◽  
Current Source ◽  
Dc Motor ◽  
Dry Season ◽  
Maximum Power ◽  
Servo Motor ◽  
Hydro Power ◽  
Maximum Slope

Research has been carried out to regulate / control the rotation of the turbine for this type of micro hydro power plant (PLTMH). This research was carried out during the dry season where water discharge greatly affects turbine rotation. This tool utilizes an optocoupler sensor, servo motor and 2x16 LCD. This system works based on the turbine rotation speed that is read on the sensor then controls the slope of the water fall using a DC motor. If thewater speed is low, the servo motor will turn CW up to a maximum slope of 75 degrees to produce maximum rotation and maximum power. This research does not focus on the magnitude of the resulting current source and the amount of water discharge

scholarly journals Analisis Efisiensi Daya Pembangkit Listrik Tenaga Mikrohidro Menggunakan HOMER (Studi Kasus PLTMH Parakandowo Kabupaten Pekalongan)

2021 ◽  
Vol 1 (2) ◽  
Author(s):  
Siti Suci Murni ◽  
Agus Suryanto
Keyword(s):  
Power Plant ◽  
River Water ◽  
Power Efficiency ◽  
Research Method ◽  
Water Discharge ◽  
Dry Season ◽  
Simulation Results

Microhydro Power Plant (MPP) is a power plant that uses water as a medium to drive turbines and generators. The power generated by PLTMH depends on the flow of river water that flows through PLTMH Prakandowo. In the dry season the water discharge fluctuates so that the efficiency of the MPP has decreased. The research was conducted to analyze the Power Efficiency of MPP Parakandowo. The research method used in this research is non-experimental quantitative using descriptive methods in Parakandowo Hamlet, Sidomulyo Village, Lebakbarang District, Pekalongan Regency. This study provides an overview of the decrease in power efficiency of PLTMH Parakandowo in the dry season. The results of this study are the efficiency value of PLTMH Parakandowo of 65.33% which indicates inefficiency, due to the effect of decreasing water discharge. The long-term solution is to connect MPP with PLN. Homer software can simulate a grid connected MPP with PLN. The simulation results of Homer software hybridize PLTMH with PLN, namely the energy that can be produced is 122,593 kW / year.Keywords—MPP,efficiency,homer,grid connected

Study of HVDC System and Subsynchronous Oscillation

2015 ◽  
Vol 1092-1093 ◽  
pp. 356-361
Author(s):  
Peng Fei Zhang ◽  
Lian Guang Liu
Keyword(s):  
Power Plant ◽  
Time Domain ◽  
Simulation Method ◽  
Time Domain Simulation ◽  
Stable Convergence ◽  
Turbine Generator ◽  
Plant Model ◽  
Subsynchronous Oscillation ◽  
Hvdc System ◽  
Simulation Results

With the application and development of Power Electronics, HVDC is applied more widely China. However, HVDC system has the possibilities to cause subsynchronous torsional vibration interaction with turbine generator shaft mechanical system. This paper simply introduces the mechanism, analytical methods and suppression measures of subsynchronous oscillation. Then it establishes a power plant model in islanding model using PSCAD, and analyzes the effects of the number and output of generators to SSO, and verifies the effect of SEDC and SSDC using time-domain simulation method. Simulation results show that the more number and output of generators is detrimental to the stable convergence of subsynchronous oscillation, and SEDC、SSDC can restrain unstable SSO, avoid divergence of SSO, ensure the generators and system operate safely and stably

Studi Analisa Potensi Sumber Air sebagai Pembangkit Listrik Tenaga Mikrohidro (PLTMH) di Karungan Kelurahan Mamburungan Timur Kota Tarakan

2021 ◽  
Vol 4 (2) ◽  
pp. 22-26
Author(s):  
Hadi Santoso ◽  
Eris Santoso ◽  
Ruslim Ruslim
Keyword(s):  
Energy Source ◽  
Alternative Energy ◽  
Renewable Energy Sources ◽  
Water Discharge ◽  
Electrical Energy ◽  
Water Source ◽  
Energy Sources ◽  
Hydro Power ◽  
The People ◽  
City Water

The supply of electrical energy in Tarakan City, North Kalimantan, still relies on diesel power which uses a limited number of petroleum energy sources. There is a need for research related to renewable energy sources that have the potential to become alternative energy for the people of Tarakan City. Water is an energy source that has great potential to generate electricity. The energy source that should be taken into account is micro-hydro which can be used as a Micro-hydro Power Plant (PLTMH). A survey of micro-hydro sources in Tarakan City, precisely in the Karungan area, East Mamburungan Village, has been carried out with the direct measurement method of water discharge and the relationship with the power generated. The result shows the water source has a discharge 0.00034 m3/ s, the water velocity of 0.035 m/s and generates power only up to 1.1 watts. Based on the power obtained, the water source in this place cannot be used as a source of micro-hydro energy, but has the potential as a source of pico-hydro energy.

Transformasi Bentuk Pertunjukan Ronggeng Pasaman Grup Ganto Saroha Kecamatan Duo Koto Kabupaten Pasaman

2019 ◽  
Vol 4 (1) ◽  
Author(s):  
Kurniawan Fernando ◽  
Martarosa Martarosa ◽  
Awerman Awerman
Keyword(s):  
Local Government ◽  
Young People ◽  
Qualitative Methods ◽  
Early Morning ◽  
Analytic Description ◽  
Great Demand ◽  
The People ◽  
Keyboard Music ◽  
West Sumatra ◽  
Form Transformation

<p align="center"><strong><em>Abstract</em></strong></p><p><em>This study aims to determine the transformation of the Ronggeng Pasaman performance of the Ganto Saroha group in Duo Koto District, Pasaman Regency. Ronggeng Pasaman is a performance art consisting of pantun, joget, and music, especially in Simpang Tonang, Pasaman, West Sumatra. The form of the Ronggeng Pasaman show is combining bouncing skills while dancing to the accompaniment of violin and drum music. The show starts at night, and ends until early morning. Currently Ronggeng Pasaman has undergone a transformation, people, especially young people, are less interested and begin to leave their regional arts, so the Ronggeng Pasaman show is rarely displayed. There was anxiety from the artists themselves, then initiatives emerged to attract the attention of the people. So it formed the Ronggeng Pasaman Ganto Saroha group, with the addition of keyboard music instruments in the show. Unlike the Pasaman Ronggeng Performance in general, the Ganto Saroha group does not show male singers with female appearance, but rather singers are real women or men. This study uses qualitative methods, is analytic description, observant participants. The results showed that the transformation carried out by the artists, made the Ronggeng Pasaman performance of the Ganto Saroha group well received and in great demand by all people in Pasaman, and was fully supported by the local government.</em></p><p><strong><em>Keywords : </em></strong><em>Form Transformation, Pasaman Ronggeng Performance, Ganto Saroha Group</em></p><p align="center"><strong><em>Abstrak</em></strong></p><p><em>Penelitian ini bertujuan untuk mengetahui transformasi bentuk pertunjukan Ronggeng Pasaman grup Ganto Saroha di Kecamatan Duo Koto, Kabupaten Pasaman. Ronggeng Pasaman merupakan seni pertunjukan  terdiri dari pantun, joget, dan musik, khususnya terdapat di Simpang Tonang, Pasaman, Sumatera Barat. Bentuk pertunjukan Ronggeng Pasaman adalah menggabungkan keahlian berpantun sambil menari dengan iringan musik biola dan gendang. Pertunjukan dimulai pada malam hari, dan berakhir hingga menjelang pagi. Saat ini Ronggeng Pasaman telah mengalami transformasi, masyarakat khususnya anak muda kurang meminati dan mulai meninggalkan kesenian daerahnya, sehingga pertunjukan Ronggeng Pasaman jarang ditampilkan. Terdapat keresahan dari diri seniman, kemudian muncul inisiatif untuk menarik kembali perhatian masyarakatnya. Sehingga dibentuk grup Ronggeng Pasaman Ganto Saroha, dengan penambahan instrument musik keyboard dalam pertunjukannya. Beda dengan Pertunjukan Ronggeng Pasaman  pada umumnya, grup Ganto Saroha tidak menampilkan penyanyi laki-laki berpenampilan perempuan, melainkan penyanyi adalah perempuan atau laki-laki sesungguhnya. Penelitian ini menggunakan metode kualitatif, bersifat deskripsi analitik, partisipan observan. Hasil penelitian menunjukkan bahwa transformasi yang dilakukkan para seniman, membuat pertunjukan Ronggeng Pasaman grup Ganto Saroha diterima dengan baik  dan diminati semua kalangan masyarakat Pasaman, dan  didukung penuh oleh pemerintahan setempat.</em></p><strong><em>Kata kunci : </em></strong><em>Transformasi Bentuk, Pertunjukan Ronggeng Pasaman, Grup Ganto Saroha</em>

scholarly journals Effects of Riverbed Extraction on Ground Water Resources in the Vicinity of Tinau River, Rupandehi

2013 ◽  
Vol 13 (2) ◽  
pp. 133-140 ◽  
Author(s):  
Khet R Dahal ◽  
Chandra P Poudyal ◽  
Prajwal Adhikari ◽  
Subodh Sharma ◽  
Jitendra Ghimire
Keyword(s):  
Low Income ◽  
Local Governance ◽  
Flood Plain ◽  
Dry Season ◽  
Income Generation ◽  
Plain Area ◽  
The People ◽  
Tube Wells ◽  
Medium Level ◽  
Dug Well

CORRECTION: The correct PDF for this article was loaded on 22/04/2013.The study was carried out in the vicinity of the Tinau river, Rupandehi, Nepal from July 2011 to June 2012. Ten number of shallow tube wells (STWs) of depths 5.18 m to 7.62 m, four shallow tube wells (STWs) of depths 28.96 m to 36.58 m. from Amawa and Farsatikar Village Development Committees and one dug well (DW) from Butwal Municipality were selected for the purpose of this study. The depth of the STWs was different but many STWs were of 6.09 m deep. The DW was of 18.29 m. The information was collected from the owners during field visit of the sites. A standard questionnaire was prepared and asked to the affected persons. The site observation was done in the dry season as well as in the rainy seasons. It was found that the extraction of riverbed materials from the river channel and the flood plain area has adversely affected the aquatic environment of the Tinau river. Massive extraction of the riverbed materials from this river started after the enforcement of local governance act, and regulation 1999. The income generated from the riverbed materials is quite enough. This is one of the major sources of income generation of DDC Rupandehi and the VDCs attached to this river (from Butwal to Bethari). The depth of the river increased due to extraction activities as a result groundwater table lowered. The STWs having depth of 5.18 to 7.62 m stopped discharging water from the aquifer in the dry season. Similarly DW of Butwal municipality having depth of 18.29 m stopped discharging water at dry season. But the STWs of depths from 28.96 m to 36.58 m. located at the same area/site were not affected by the extraction in the Tinau river. The people, who are residing on the bank of the river Tinau, suffered from drinking water problem because they are using the water from STWs. The effect is directly facing the people of low and medium level having low income generation. The extraction activity is going on and the deficit of water availability in STWs and DW is common in the vicinity of the Tinau river especially in the upstream (from Butwal to Paschim Amawa), whereas there is less effects of riverbed extraction for STWs of depths more than 27.43 m in the same sites. Nepal Journal of Science and Technology Vol. 13, No. 2 (2012) 133-140 DOI: http://dx.doi.org/10.3126/njst.v13i2.7726

scholarly journals DAMPAK PEMBANGUNAN PEMBANGKIT LISTRIK TENAGA UAP (PLTU) TANJUNG JATI B TERHADAP PERUBAHAN MATA PENCAHARIAN DAN TINGKAT PENDAPATAN (Desa Tubanan Kecamatan Kembang Kabupaten Jepara)

2020 ◽  
Vol 5 (2) ◽  
pp. 155-164
Author(s):  
Ayuuk Nooraliza ◽  
Rudi Salam
Keyword(s):  
Power Plant ◽  
Steam Power ◽  
Income Levels ◽  
Steam Power Plant ◽  
The People ◽  
Before And After ◽  
Negative Impacts

Tanjung Jati B Steam Power Plant (PLTU) is a power plant located in Tubanan Village, Kembang District, Jepara Regency. The existence of the PLTU construction causes various impacts on the surrounding community, such as changes in livelihoods and income levels. This article aims to 1) Describe the livelihoods of the people of Tubanan Village before and after the construction of PLTU Tanjung Jati B, 2) Describe the level of income of the people of Tubanan Village before and after the construction of PLTU Tanjung Jati B, (3) to describe the impacts caused by the existence of development of PLTU Tanjung Jati B. The results of this study found that 1) There were changes in livelihoods due to the construction of PLTU Tanjung Jati B such as housewives becoming parking guards, 2) Increased income of the people of Tubanan Village, 3) There were positive and negative impacts felt by the people of Tubanan Village. Pembangkit Listrik Tenaga Uap (PLTU) Tanjung Jati B merupakan salah satu pembangkit listrik yang berada di Desa Tubanan Kecamatan Kembang Kabupaten Jepara. Adanya pembangunan PLTU menyebabkan berbagai dampak terhadap masyarakat sekitar seperti perubahan mata pencaharian dan tingkat pendapatan. Artikel ini bertujuan untuk 1) Mendeskripsikan mata pencaharian masyarakat Desa Tubanan sebelum dan sesudah adanya pembangunan PLTU Tanjung Jati B, 2) Mendeskripsikan tingkat pendapatan masyarakat Desa Tubanan sebelum dan sesudah adanya pembangunan PLTU Tanjung Jati B, (3) untuk mendeskripsikan dampak yang diakibatkan oleh adanya pembangunan PLTU Tanjung Jati B. Hasil penelitian ini menemukan bahwa 1) Adanya perubahan mata pencaharian akibat pembangunan PLTU Tanjung Jati B, 2) Peningkatan pendapatan masyarakat Desa Tubanan, 3) Adanya dampak positif dan dampak negatif yang dirasakan oleh masyarakat Desa Tubanan.

Migratory Labour from North-Wester Nigeria

Africa ◽  
1957 ◽  
Vol 27 (3) ◽  
pp. 251-261 ◽  
Author(s):  
R. Mansell Prothero
Keyword(s):  
Large Scale ◽  
Source Area ◽  
Dry Season ◽  
Labour Migration ◽  
Agricultural Activity ◽  
Wet Season ◽  
The North ◽  
The People ◽  
Limited Scale ◽  
Opening Paragraph

Opening ParagraphReaders of Africa will be well aware of population migration as a characteristic feature of a continent where movement between one part and another is largely unrestricted as compared with the more settled parts of the world. There is much evidence of large-scale tribal migrations in the past, of the age-old seasonal wanderings of herders, and of recent labour migration to centres of mineral and industrial production, the last particularly in Central and South Africa. Information is more limited concerning the features of labour migration in West Africa at the present day. In general it is thought that migrants leave their home areas, after the harvest at the commencement of the dry season, to seek work elsewhere for a period of from three to six months and then return to take up farming with the commencement of the next rains. The major source area for these migrants is to the north of the tenth parallel where the wet season is concentrated into a period of about four months, thus severely restricting agricultural activity. Cultivation during the dry season is possible only on a very limited scale. There is thus a considerable period of the year when the primary economic activity of the people is not possible. It is logical that they should seek work elsewhere.

scholarly journals Smart Irigasi Berbasis Arduino Sebagai Kontrol Air Subak untuk Mempertahankan Ketahanan Pangan

2018 ◽  
Vol 5 (2) ◽  
pp. 94
Author(s):  
I Kadek Agus Wahyu Raharja ◽  
Fachri Zamzami ◽  
I Gede Feryanda Fransiska ◽  
I Gusti Ngurah Janardana
Keyword(s):  
Monitoring System ◽  
Rainy Season ◽  
Water Distribution ◽  
Irrigation System ◽  
Water Discharge ◽  
Dry Season ◽  
Rice Fields ◽  
Traditional Leader ◽  
Value Of Water ◽  
Solar Powered

Agriculture in Bali generally using Subak system as an irrigation system. This irrigation system is regulated by a traditional leader who is also a farmer in Bali. Water distribution is carried out according to the area of farmers land. The problems that can be happened on this irrigation system, such as the community that opens the floodgates to the rice fields, are not in accordance with the time provided by traditional leaders, and that can break the unity in the area. In addition, during the dry season the distribution of water is sometimes uneven because the availability of water in the dam does not meet the needs. So that Arduino-based Solar Powered Smart Irrigation is designed as one of the tools to facilitate the management of subak water distribution. The modeling made is to simulate 3 pieces of rice fields that are drained by water with the main source being the river and the source of the reserve in the form of a reservoir. This system is controlled based on the programmed time on the RTC module and the monitoring system uses the GSM SIM900 module. The data obtained is the value of water discharge in the rainy season of 2.090 L / s, the dry season of 11.18 L / s, and 0 L / s in the hard dry season.

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