scholarly journals THE EFFECT OF SCHEDULING ON THE STEAM PRESSURE TRANSIENTS OCCURRING IN A STEAM POWER PLANT

1951 ◽  
Author(s):  
J Barnes
2013 ◽  
Vol 1 (3) ◽  
Author(s):  
Indra Yudhaemi ◽  
Emir Nasrullah ◽  
Nur Sudjarwanto

Pada penelitian ini dibuat simulasi tentang sistem kendali water treatment pada Pembangkit Listrik Tenaga Uap Sebalang unit 5 & 6 Lampung Selatan. Pembangkit Listrik Tenaga Uap bekerja dengan memanfaatkan energi tekanan uap dari proses perebusan air demineral air laut oleh batu bara untuk menggerakkan turbin dan generator yang akhirnya menghasilkan listrik. Bahan utama penghasil uap ini adalah air laut yang tentu saja memiliki kandungan kimia yang masih harus diolah dengan baik sehingga dapat menghasilkan uap yang tidak merusak logam-logam, khususnya kandungan garam yang sangat konduktif dan bersifat korosif. Oleh karena itu, sangat diperlukan suatu metode pengolahan air laut menjadi air demineral yang layak dijadikan uap bagi turbin yaitu metode pentreatmenan air (water treatment). In this research the simulation is made of water treatment control system on Steam Power Plant Unit 5 & 6 Sebalang, South Lampung. Steam Power Plant works by using the energy of the steam pressure by boiling demineralized sea water using coal to rotate a turbine and a generator, which is finally produces electricity. The main ingredient to produce this steam is sea water which still has chemical composition, which needs to be proccessed well, so the steam which is produced does not ruin metal, especially content of slat which is very conductive and corrosive. Therefore a method of proccessing salt water to be a proper demineralized water steam for generator is needed, which is called as water treatment method.


2014 ◽  
Vol 686 ◽  
pp. 89-94
Author(s):  
Peng Wang ◽  
Meng Hao ◽  
Qing Zhou Ji

The main steam pressure control system in marine steam power plant has the characteristics of time-varying, nonlinear and strong coupling. In order to get satisfactory control effect, we propose a fuzzy immune PID controller with which we can make comprehensive utilization of advantages of artificial immune, PID and fuzzy controller. We build up mathematical model of main steam pressure control system, carry out simulation and comparison. The results prove that fuzzy immune PID controller can significantly reduce the overshoot and settling time of main steam pressure. It is more effective in main steam pressure control system than PID controller.


2008 ◽  
Vol 19 (3) ◽  
pp. 35-45 ◽  
Author(s):  
R.K. Kapooria ◽  
S. Kumar ◽  
K.S. Kasana

Most of the electricity being produced throughout the world today is from steam power plants. At the same time, many other competent means of gener-ating electricity have been developed viz. electricity from natural gas, MHD generators, biogas, solar cells, etc. But steam power plants will continue to be competent because of the use of water as the main working fluid which is abundantly available and is also reusable. The condenser remains among one of the key components of a steam power plant. The efficiency of a thermal power plant depends upon the efficiency of the condenser. In this paper, a the-oretical investigation about thermal analysis and design considerations of a steam condenser has been undertaken. A hybrid steam condenser using a higher surface area to diameter ratio of cooling a water tube has been analyzed. The use of a hybrid steam condenser enables higher efficiency of the steam power plant by lowering condenser steam pressure and increasing the vacuum inside the con-denser. The latent/sensible heat of steam is used to preheat the feed water supply to the boiler. A con-ceptual technological design aspect of a super vacu-um hybrid surface steam condenser has been theo-retically analyzed.


2015 ◽  
Vol 52 (4) ◽  
pp. 214-225 ◽  
Author(s):  
E. Plesiutschnig ◽  
R. Vallant ◽  
G. Stöfan ◽  
C. Sommitsch ◽  
M. Mayr ◽  
...  

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