scope:

The Engineering Safety Relief Systems Guidebook: -Provides background on the operating principles of pressure relief valves. -Reviews codes and standards that relate to pressure relief systems. -Introduces methods for sizing pressure relief valves for equipment other than vessels and positive displacement compressors. -Presents a detailed approach to engineering safety relief vent piping for manifolded (headered) relief systems. -Introduces methods for estimating inlet losses to pressure relief devices. -Illustrates the application of methods presented using examples.

The Engineering Safety Relief Systems Guidebook:

• Provides background on the operating principles of pressure relief valves.
• Reviews codes and standards that relate to pressure relief systems.
• Introduces methods for sizing pressure relief valves for equipment other than vessels and positive displacement compressors.
• Presents a detailed approach to engineering safety relief vent piping for manifolded (headered) relief systems.
• Introduces methods for estimating inlet losses to pressure relief devices.
• Illustrates the application of methods presented using examples.

This Guidebook can be read from cover-to-cover or used as a reference for specific questions that may arise in your design work. The first few sections of the guidebook are intended to provide background on safety relief systems. The terms and definitions related to safety relief devices and systems are reviewed first. Next, the most commonly applied pressure relief devices in industrial refrigeration systems are presented followed by discussion of their theory of operation. The background portion of the Guidebook concludes with sections that review current trends in relief vent piping.

The heart of the Guidebook includes sections that cover methods for capacity determination and vent piping requirements. Included in the sections on capacity determination are methods for sizing relief devices for pressure vessels (including oil separators), shell-and-tube process heat exchangers, plate-and-frame process heat exchangers, oil cooling heat exchangers, product storage tanks, evaporative condensers, and positive displacement compressors. Principles of engineering both single vent and multiple (headered) vent systems are presented along with examples.

If you are involved with evaluating existing relief systems for compliance, documented the design and design basis for new and existing relief systems, or engineering new relief systems, this Guidebook is for you.