scholarly journals Support Structures for Seal Switches Located Near Bus Lines

2021 ◽  
Vol 2096 (1) ◽  
pp. 012171
Author(s):  
M Kletsel ◽  
B Mashrapov ◽  
A Barukin
Keyword(s):  
Power Plant ◽  
Support Structures ◽  
Overhead Line ◽  
Application Range ◽  
The Third ◽  
Support Insulator

Abstract The authors propose three designs for seal switch support structures located near power plant bus lines. The first one has a plate that is attached to bus lines located in the same plane. The second uses a support insulator as the case and can be attached to several bus lines at the same time or each of them individually to provide a wide application range. The third design stipulates seal switch installation on overhead line pylons. The authors provide detailed descriptions of the designs and explain how the trip settings are adjusted on them.

scholarly journals Jenis Fitoplankton di Perairan Sekitar PLTU Tambak Lorok Semarang

2021 ◽  
Vol 10 (1) ◽  
pp. 123-130
Author(s):  
Clarence Daffa Ananta ◽  
Ria Azizah Tri Nuraini ◽  
Ibnu Pratikto
Keyword(s):  
Power Plant ◽  
Sea Level ◽  
Sampling Method ◽  
Waste Heat ◽  
Steam Power ◽  
Purposive Sampling ◽  
Steam Power Plant ◽  
The Third ◽  
Ocean Environment ◽  
Descriptive Method

Salah satu pemanfaatan lingkungan pesisir dan laut adalah pembangunan Pembangkit Listrik Tenaga Uap (PLTU), karena sistem penyediaan air yang dibutuhkan untuk operasional PLTU berasal dari air laut. Kenaikan suhu permukaan laut akibat adanya aktivitas PLTU akan mempengaruhi organisme pada perairan tersebut, salah satunya adalah fitoplankton. Fitoplankton merupakan organisme autotroph yang mengandung pigmen klorofil sehingga dapat melakukan proses fotosintesis dengan memanfaatkan cahaya matahari. Tujuan penelitian ini adalah untuk mengkaji komposisi dan kelimpahan fitoplankton di perairan sekitar PLTU Tambak Lorok Semarang. Metode yang digunakan dalam penelitian ini adalah metode deskriptif eksploratif, sedangkan dalam pengambilan sampel penelitian, digunakan metode purposive sampling. Hasil kelimpahan fitoplankton secara keseluruhan di Perairan Tambak Lorok, yang tertinggi terdapat pada stasiun 3 dengan jumlah sebesar 4035,7 Ind/L sedangkan pada stasiun 2 dengan jumlah sebesar 2812,7 Ind/L dan kelimpahan terendah terdapat pada stasiun 1 dengan jumlah sebesar 1494,7 Ind/L. Terjadi kenaikan suhu sebesar 5OC dengan nilai suhu mencapai 36,2OC pada stasiun 1 yang memiliki jarak 300 m dari titik outfall, suhu kemudian mengalami penurunan sebesar 3 OC dengan nilai suhu sebesar 33,7OC pada stasiun 2, dan terjadi penurunan pada stasiun 3 hingga nilai suhu sebesar 32,8OC dimana suhu sudah mendekati nilai normal suhu perairan sebesar 31 OC. Dapat disimpulkan bahwa nilai kelimpahan fitoplankton mengalami penurunan seiring dengan meningkatnya kenaikan suhu permukaan laut pada Perairan Tambak Lorok Semarang.One of the utilization of coastal and ocean environment is the development of electric steam power plant since the water required for the operational comes from seawater. The disposal location of the used seawater is in the form of waste heat, streamed into the ocean; therefore it caused the rise of sea-level temperature. The rising sea level temperature will affect the organism on those waters; one of them is phytoplankton. Phytoplankton is an autotroph organism that contains chlorophyll pigment so it can do photosynthesis process using the sunlight. This research aims to study the abundance of phytoplankton in waters around electric steam power plant Tambak Lorok Semarang. The method used in this research is the explorative, descriptive method, while the sampling method is purposive sampling. The highest phytoplankton abudance in Tambak Lorok Waters is located on the third station with 4035,7 Ind/L, while on the second station is 2812,7 Ind/L and the lowest abundance is on the first station with only 1494,7 Ind/L. The increase of sea-level temperature is up to 5OC with the temperature value reached 36,2OC on the first station that located 300 m from the power plant outfall. The temperature then drops 3OC with the value of 33,7OC on the second station. The temperature then drops on the third station with the value of 32,8OC where it’s closed to average sea level temperature, which is 31OC. It can be concluded that the abundance of phytoplankton decreased along with the increase of sea level temperature in Tambak Lorok Waters.

Lee County Resource Recovery Facility Expansion Project

2003 ◽  
Author(s):  
Sam M. Rosania
Keyword(s):  
Power Plant ◽  
Municipal Solid Waste ◽  
Solid Waste ◽  
Physical Space ◽  
Resource Recovery ◽  
Boiler Unit ◽  
Turbine Generator ◽  
The Third ◽  
Lee County ◽  
Boiler Units

Municipal solid waste from Lee County and Hendry County is processed at the Lee County Solid Waste Resource Recovery Facility (the “Facility”). Lee County (the “County”) owns the Facility, which began commercial operation in December 1994. The Facility’s current permitted capacity is 1,320 tons per day (tpd), provided by two 660-tpd boiler units, at a reference waste of 5,000 Btu. Covanta Energy of Lee, Inc. operates and maintains the Facility under the terms of a Service Agreement with the County that runs through 2014. Covanta also designed and constructed the Facility. The expansion of this Facility will be the first new construction of a municipal waste combustion (MWC) unit since the New Source Performance Standards were adopted. Despite the County’s comprehensive recycling program, the amount of solid waste the County delivers to the Facility has increased each year since the Facility began operation, primarily due to population growth. In 1999, this amount reached the Facility’s guaranteed annual capacity of 372,300 tons. In 2000, the Facility processed over 392,000 tons of municipal solid waste, while the County landfilled nearly 44,000 additional tons of processible waste. Current population projections for Lee and Hendry Counties suggest that processible solid waste generation will continue to increase, reaching nearly 550,000 tons by 2010. Rather than landfilling processible waste generated in excess of the Facility’s current capacity, it is the County’s intention to expand the Facility by adding a third 660-tpd boiler unit which would increase the Facility’s permitted capacity to 1,980-tpd. The original application for the Facility’s Power Plant Site Certification anticipated such an expansion, including provisions for a third 660-tpd MWC unit. Certain provisions for this third unit were incorporated into the Facility’s design and construction as well. These included providing the physical space for the third unit, the physical space for an additional flue for the third unit, and sizing the tipping floor, refuse pit, and certain common equipment for three units. The expansion will require a second turbine-generator unit and expanded switchyard, an extension to the existing turbine-generator building, as well as the addition of a third boiler unit and air pollution control equipment. The expansion will also require modifications to certain equipment and systems common to all boiler units in order to meet the additional capacity requirements of the expanded Facility. As of February 2003, the County is waiting for the Florida Department of Environmental Protection to issue a draft PSD Air Permit and is on scheduled to go before the Power Plant Siting Board in September 2003.

Analysis of the Operational Risk Controls in the Electric Power Plant

2013 ◽  
Vol 416-417 ◽  
pp. 2087-2091 ◽  
Author(s):  
Chun Ying Wang
Keyword(s):  
Risk Factors ◽  
Power Plant ◽  
System Analysis ◽  
Thermal Power ◽  
Control Measures ◽  
Important Work ◽  
The Third ◽  
Generating Capacity ◽  
Complex Production System ◽  
And Control

Thermal power generation is a complex production system, and electric operation is an important work. The generating capacity of Zhangjiakou power plant is 2400 thousand kW, ranking the third in our country. Its technology and equipment and the process are representative. In order to ensure the safety of the electrical operation, on the basis of analysis of accident cases for more than ten years, using the method of system analysis, this article summarizes the risk factors and control measures of electrical operation. With strict implementation, the electrical accidents of our planet will decrease year by year.

Kadar Logam Berat Besi (Fe), Seng (Zn) Pada Sedimen Dan Jaringan Lunak Kerang Hijau (Perna viridis) Di Perairan Tambak Lorok Semarang

2018 ◽  
Vol 6 (3) ◽  
pp. 173-180
Author(s):  
Dian Dwi Triantoro ◽  
Djoko Suprapto ◽  
Siti Rudiyanti
Keyword(s):  
Power Plant ◽  
Soft Tissue ◽  
Atomic Absorption ◽  
Coastal Area ◽  
Quality Measurement ◽  
Atomic Absorption Spectrophotometer ◽  
Perna Viridis ◽  
Steam Power ◽  
The Third ◽  
Household Activities

ABSTRAKLimbah yang berasal dari aktifitas manusia diindikasikan mengandung logam berat Besi dan Seng yang berasal dari industri, PLTU, pelabuhan Tanjung Mas Semarang dan kegiatan rumah tangga di sekitar perairan Tambak Lorok. Penelitian ini bertujuan untuk mengetahui kadar logam berat Besi dan Seng pada sedimen, dan jaringan lunak kerang hijau (P. viridis) di perairan Tambak Lorok, Semarang. Pengambilan sampel dilakukan pada tanggal 14 Oktober 2016 dan 06 Maret 2017 sampel yang di ambil berupa air, sedimen dan biota kerang hijau dan pengukuran kualitas perairan. Penentuan titik sampling berdasarkan kebiasaan nelayan mengambil ataupun membudidayakan kerang hijau dengan membagi menjadi tiga stasiun dengan jarak antar stasiun satu dan stasiun dua yaitu kisaran ±500 meter kemudian jarak dari stasiun dua dengan stasiun tiga yaitu kisaran ±1 km. Untuk mengetahui kadar logam berat menggunakan metode SNI atau APHA yaitu AAS (Atomic Absorption Spectrophotometer). Hasil penelitian menunjukan kadar logam berat besi pada air yaitu <0,001 hingga 0,062 dan seng kisaran <0,001 - 0,009 mg/l, sedangkan untuk sedimen dengan rerataan (Fe) 50498,5 mg/kg hingga 55616,3 mg/kg kemudian kandungan logam berat sedimen rataan (Zn) 69,51 mg/kg hingga 403,45 mg/kg, selanjutnya untuk kadar logam berat yang terdapat pada jaringan lunak kerang hijau adalah (Fe) 102,52 mg/kg hingga 129,72 mg/kg dan (Zn) 13,75 mg/kg hingga 62,84 mg/kg. Hasil yang didapat menggambarkan bahwa sampel yang sudah di analisis bernilai fluktuatif. Kata kunci: Pesisir; Logam Berat; Fe; Zn; Sedimen; Kerang Hijau; AirABSTRACKThe waste that originated from human activities is indicated in having the content of Iron (Fe) and Zinc (Zn) from the industry, coal fired steam power plant (PLTU), Tanjung Mas Semarang harbour and household activities near the coastal area of Tambak Lorok. This study aims to know the condition of Iron (Fe) and Zinc (Zn) in the sediment and soft tissue of mussels (Perna viridis) at Tambak Lorok waters, Semarang. The sampling has been done on 14th October 2016 and 6th March 2017. The sampling is taken from water, sediment, mussels biota and waters quality measurement. The points of sampling are determined based on fishermen customs in taking and cultivating mussels, also divided to three stations with the distance of the first to the second station is around 500 meters, the distance of the second to the third station is around 1 kilometers. The content of Iron (Fe) and Zinc (Zn) is known by using SNI or APHA methods, that called as AAS (Atomic Absorption Spectrophotometer). The result shows that the content of Iron (Fe) in water is <0,001 to 0,062, and Zinc (Zn) is <0,001 to 0,009 mg/l, while for the sediment with rerataan is (Fe) 50498,5 mg/kg to 55616,3 mg/kg and the content of sediment rerataan metal (Zn) is 69,51 mg/kg to 403,45 mg/kg, and next the content of metal in soft tissue of mussels is (Fe) 102,52 mg/kg to 129,72 mg/kg and (Zn) is 13,75 mg/kg to 62,84 mg/kg.  Key words: Costal Area; Meta;, Fe; Zn; Sediment; Mussels; Water

Chemicotechnological regime during preparation of the third block of the Leningrad Nuclear Power Plant for physical start-up

1982 ◽  
Vol 52 (2) ◽  
pp. 141-144
Author(s):  
V. M. Sedov ◽  
P. G. Krutikov ◽  
N. V. Nemirov ◽  
S. T. Zolotukhin ◽  
A. V. Devochkin ◽  
...  
Keyword(s):  
Power Plant ◽  
Nuclear Power Plant ◽  
Nuclear Power ◽  
The Third ◽  
Start Up ◽  
Leningrad Nuclear Power Plant

Application Differences of In-Service Inspection Regulations Between RSE-M2010 and ASME Section XI in China PWRs

2017 ◽  
Author(s):  
Yang Cheng ◽  
Zhang Xueliang ◽  
Xia Peng ◽  
Zeng Qingyue ◽  
Li Tian
Keyword(s):  
Power Plant ◽  
Nuclear Power Plant ◽  
Nuclear Power ◽  
Technology Development ◽  
Nuclear Industry ◽  
Third Generation ◽  
Difference Analysis ◽  
The Third ◽  
Pressure Test ◽  
Service Inspection

RSE-M 2010 and ASME Section XI are the widely used and most detailed PWR in-service inspection regulations applied in China PWRs which are separately belong to French AFCEN and American ASME regulations, and come from the different nuclear industry practices of their countries. In 1987, the French M310 type reactor was imported to China and therewith the RSE-M in-service inspection regulation was introduced, beginning to be widely used in China PWRs since that time. Meanwhile, Chinese nuclear power institutes began to independently develop its own PWR reactor named Qinshan Phase I Nuclear Power Plant, and then ASME Section XI in-service inspection regulation was used which was also beginning to be widely used in some Chinese PWRs. With the nuclear power technology development and innovation, such regulations are continually updated and perfected. Thus, there are many differences during application in Chinese specific PWRs. This paper has performed quite deeply application difference analysis between the two regulations based on several aspects, such as upstream laws cited, component classification, inspection requirement, NDE, qualification, pressure test and the Safety Authority review requirements for licensing. Some preliminary thinking has been presented during applying these two regulations and some technical suggestions have been also provided to perfect the regulations in the hope to provide better reference during application on the third generation PWRs (including HPR1000) in China.

Study on the Classification and Recycling Mode of Retired or Scrapped Equipment

2012 ◽  
Vol 610-613 ◽  
pp. 2216-2219
Author(s):  
Ming Fang Ni ◽  
Lu Xi Kang ◽  
Zheng Wang ◽  
Shi Lun Liu
Keyword(s):  
Natural Resources ◽  
Environmental Pollution ◽  
National Economy ◽  
Third Party ◽  
Application Range ◽  
Economic Problems ◽  
Advantages And Disadvantages ◽  
The Third ◽  
Special Degree ◽  
National Defence

Weaponry is an important component of national defence economy and even national economy, its construction and development are closely related to economic problems. Under the situation that the exhausting of natural resources and environmental pollution can't be ignored, the paper centred on the assortment problems of retired or scrapped equipment, classify the equipment from three aspects: special degree, recycle mode and combined classification. Analize the application range, advantages and disadvantages of Army Collect and Dispose mode, Manufacturers Collect and Dispose mode and The Third Party Collect and Dispose mode in detail. On the basis, research the match problems between different assortment and recycling mode of retired or scrapped equipment.

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