Pipe Stress Analysis of Geothermal Pipeline System
The demand of electricity exceeds it’s produce in Indonesia. Government has an effort to replace the deficiency by increasing new power plant. Power plant that Government had suggested still using fossil fuel. An alternative source must be used for making the greater environment and responding the g...
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| Format: | Final Project |
| Language: | Indonesia |
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| Online Access: | https://digilib.itb.ac.id/gdl/view/40611 |
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| Institution: | Institut Teknologi Bandung |
| Language: | Indonesia |
| Summary: | The demand of electricity exceeds it’s produce in Indonesia. Government has an effort to replace the deficiency by increasing new power plant. Power plant that Government had suggested still using fossil fuel. An alternative source must be used for making the greater environment and responding the green earth issues. Geothermal power plant rises as a promising one. It converses energy from dry-steam to electricity using the turbines. In Kamojang, dry-steam system is used to maximize the produce of steam.
Stress on pipe could be calculated, so that the pipe critical point can be avoided. The magnitude of the stress can be anticipated by modifying the pipeline system. The objective of this final project is to know the maximum stress on pipe after being modified, until it could resist all the possible load. Pipe stress analysis could be calculated by Autopipe software. Its chosen as it’s capability to show stress ratio in every point. The result of analysis then being checked as allowed by ASME B31.1 code. Stress combination that rises inappropriately to the ASME B31.1 code caused modification of design itself.
Initial design is done based on design basis. Next to do is modifying the model. Caused by excessive stress on pipe, first step is rearranging the gap in guide support 50 mm in the left and right side, and 0 tolerance in bottom side. Using a line-stop support as an effective solution for vertical expansion loop pipe. Reducing dimension by reducing pipe diameter can minimize concentration stress on pipe. Modification could resist maximum stress 0,97 for occasional earthquake.
Piping system has a variety condition, but it would be failed if the head of pipe decrease 0,27 m, and/or operate in 7,25 bar-abs, and/or operate on temperature 247,13?C. Last, system that has been analyzed shows pipe would fail if earthquake 0,45 g occurs or facing 55 m/s wind speed. |
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