Analisa Tegangan Dua Jalur Pipa dari Boiler menuju High Pressure Steam Header(HPSH) berdasarkan ASME B31.1 Menggunakan Software Pipe Stress Analysis

Steam is used to generate electricity in industrial. Steam is distributed using piping system whichhas high temperature induces expansion due to expansion load. The way to resolve is installing expansionloop. The early design didn’t have any expansion loop on two lines from boiler to High Pressure Steam Header(HPSH). In designing expansion loop, must consider displacement value in order to minimize expansion andoverstress. The used methodology in designing expansion loop is measuring dimension and quantity ofexpansion loop, and type selection and position of support, and then value of stress will be evaluated accordingappropriate standard. In this research, there 3 alternative design of expansion loop on each line which is usedto analyze stress and getting optimum design in all conditios. Software of Pipe Stress Analysis Integraph isused to analyze the stress in technical aspect. The result of 3 alternative design shows that stress value due tosustain load, thermal load, and occasional load are under allowable stress according to ASME B31.1. Theoptimum design of expansion loop on line S45 12.100.01 needs 8 expansion loops and line S45 12.100.02needs 7 expansion loops