Bearing Capacity Analysis of Spun Pile Foundation in Gas Engine for Electrical Power Plant Project of Selayar

Gas Engine for Electrical Power Plant Project of Selayar is a power plant which will be built in Selayar Regency. This plant uses gas and biodiesel as a fuel. The facilities needed in the power plant construction includes a Gas Engine, Service Water Tank and Biosolar Tank. This study aims to obtain the allowable bearing capacity of the prestressed spun pile foundation for the three buildings based on soil investigation data of SPT (Standard Penetration Test) at BH-1 (gas engine), BH-2 (service water tank) and BH-3 (biosolar tank). The Meyerhof formula is used for the calculation of ultimate bearing capacity analysis on prestressed spun piles with various diameters for each depth. Calculation of the allowable bearing capacity (Qa) of the foundation at a depth of 19 meters, using a spun pile with a diameter of 300 cm, obtained a Qa value of 94.17 tons at BH-1, 94.20 tons at BH-2, and 74.65 tons at BH-3. Using a spun pile with a diameter of 400 cm, the Qa values were 116.71 tons on BH-1, 117.64 tons on BH-2, and 91.92 tons on BH-3. Using a spun pile with a diameter of 500 cm, the Qa values were 168.67 tons on BH-1, 172.09 tons on BH-2, and 131.49 tons on BH-3. Meanwhile, the values of Qa obtained were 229.85 tons on BH-1, 236.66 tons on BH-2, and 177.79 tons on BH-3 with the use of a spun pile with a diameter of 600 cm.

Multiway PCA for Early Leak Detection in a Pipeline System of a Steam Boiler—Selected Case Studies

In the paper the usability of the Multiway PCA (MPCA) method for early detection of leakages in the pipeline system of a steam boiler in a thermal-electrical power plant is presented. A long segment of measurements of selected process variables was divided into a series of “batches” (representing daily recordings of normal behavior of the plant) and used to create the MPCA model of a “healthy” system in a reduced space of three principal components (PC). The periodically updated MPCA model was used to establish the confidence ellipsoid for the “healthy” system in the PC coordinates. The staff’s decision of the probable leak detection is supported by comparison of the current location of the operating point (on the “fault trajectory”) with the boundaries of the confidence ellipsoid. It must be emphasized that due to daily and seasonal changes of heat/electricity demands, the process variables have substantially greater variability than in the examples of batch processes studied in literature. Despite those real challenges for the MPCA method, numerical examples confirmed that the presented approach was able to foresee the leaks earlier than the operator, typically 3–5 days before the boiler shutdown. The presented methodology may be useful in implementation of an on-line system, developed to improve safety and maintenance of boilers in a thermal-electrical power plant.

TO STUDY AND ANALYSIS OF RTV SILICONE RUBBER INSULATOR OPERATED WITH VARIOUS TEMPERATURE

The insulator are most important equipment in transmission Line, Distribution Line and electrical power plant. In this way the insulator are used with pin, insulator and pin are mounted on the frame, which is connected with the Grid power supply. The insulator has to separate of electrical power supply and structure, in this way we are used the high quality insulator.

KONSEP SINYAL INFORMASI PADA STASIUN PENGOLAHAN LIMBAH CAIR PLTBg POME

Biogas Electrical Power Plant require a good operational system. Good operational system could be mean there is a clear information about the condition from field. To make easier to get information from field, a concept of signal reader which picturing actual condition can be build. In Biogas Electrical Power Plant from POME (Palm Oil Mill Effluent), there is a Waste Water Treatment Station. The Operation of Waste Water Treatment Station should be well and safe operated, to reducing hazardous content of the waste water and get Biogas as a side product. On that operation, every equipment in that field need the right information for control purpose. The require signal analysis in waste water treatment station to get information actual condition from field to the main control has been done. It needs some signal such as Actif-unactif Status Indicator, Level Indicator, Flow Meter Indicator, Temperature Indicator, Pressure Indicator for Liquid and Pressure Indicator for Gas, respectively. This kind of signal as an information from field (Waste Water Treatment Station) to make operation easier and safe.