Explain the different types of TEMA heat exchanger configurations.
Utilizes a design-by-rule approach. It uses a higher safety factor (typically 3.5 against tensile strength), resulting in thicker vessel walls. It requires less complex calculations.
Seamless pipe is extruded and has no longitudinal seam. It is generally stronger and preferred for high-pressure and high-temperature applications. Welded pipe (ERW or LSAW) is cheaper and available in larger sizes, but the weld seam is a potential point of failure. You would use welded pipe for low-pressure water lines or structural applications, and seamless for critical process lines. static equipment interview questions
A deep understanding of international standards is often more valuable than software proficiency alone.
This reveals your knowledge of pressure vessel geometry. A 2:1 Ellipsoidal head is deeper and has a smooth transition from the shell, creating better stress distribution. It is standard for high-pressure vessels. A Torispherical head (often called a "dished head") has a crown radius and a knuckle radius. It is shallower, easier to manufacture, and cheaper, but the knuckle area experiences higher stress. Therefore, torispherical heads are used for lower pressures or storage tanks. Explain the different types of TEMA heat exchanger
Pressure vessels are leak-tight containers designed to hold liquids or gases at pressures substantially different from ambient pressure.
You should explain that both govern the design of pressure vessels, but they differ in philosophy. Division 1 uses a "design by rule" approach. It is prescriptive, offering specific formulas for thickness based on a safety factor (historically 3.5 on tensile strength). It is generally easier to apply but results in thicker, heavier vessels. It requires less complex calculations
The most common is ASME Section VIII Division 1 for design and fabrication, and Division 2 for alternative rules (higher stress intensity).