PRESSURE, STRESS, STRAIN AND LOANGDING FORM USED IN THE CALCULATION OF CHEMICAL EQUIPMENT

PRESSURE, STRESS, STRAIN AND LOANGDING FORM USED IN THE CALCULATION OF CHEMICAL EQUIPMENT GROUP Võ Thị Cẩm Tú 61304676 Trương Thị Hân 61301113 Trần Thị Kim Huyền 61301562 CONTENT A DEFINITION B CALCULATION A DEFINITION PRESSURE VESSEL • Vessel, tanks, and pipelines that carry, store or receive fluids are called pressure vessels • Pressure vessels are usually spherical or cylindrical Spherical pressure vessel Pgauge≤ 2.5 N/mm2 Thickness: Cylindrical pressure vessels Pgauge ≤10 N/mm2 SSph < SCyl  The cylindrical vessels are generally preferred Industrial applications • Pressure vessels are used in a number of industries • For example, the power generation industry for fossil and nuclear power • Maximum Allowable Working Pressure (MAWP): the maximum permissible pressure at the top of the vessel in its normal operating position at a specific temperature, usually the design temperature P ≤ [P] • Maximum Allowable Pressure (MAP): The term MAP is often used It refers to the maximum permissible pressure based on the weakest part in the new and cold condition, and all other loadings are not taken into consideration 2 STRESS & STRAIN • The combined stresses due to a combination of loads acting simultaneously are called stress categories Types of Stress Define a direction of stress or relate to the application of the load Tensile Compressive Shear Bending Bearing Axial Discontinuity Membrane Principal Classified of Stress Primary stress a General: o Primary general membrane stress o Primary general bending stress b Primary local stress Secondary stress a Secondary membrane stress b Secondary bending stress Peak stress, F STRAIN LOADINGS • Loadings or forces are the "causes" of stresses in pressure vessels • Type of loading: o Steady loads o Non-steady loads o General loads o Local loads [...]...Classified of Stress 1 Primary stress a General: o Primary general membrane stress o Primary general bending stress b Primary local stress 2 Secondary stress a Secondary membrane stress b Secondary bending stress 3 Peak stress, F STRAIN 3 LOADINGS • Loadings or forces are the "causes" of stresses in pressure vessels • Type of loading: o Steady loads o Non-steady loads o