Sizing of Pressure Relief Valve

Gas/Vapors Relief Valve The flow through a pressure relief valve is dependent upon the absolute upstream pressure and is independent of the downstream pressure when the downstream pressure is less than the critical-flow pressure. However, when the downstream pressure is increased above the critical flow pressure, the flow through the Read more…

Failure Mode and Effect Analysis

FMEA is a procedure in operations management for analysis of potential failure modes within a system for classification by severity or determination of the effect of failures on the system. Benefits Captures the collective knowledge of a team Logical, structured process for identifying process areas of concern Documents and tracks Read more…

Fault Tree Analysis

Fault Tree Analysis (FTA) is a common tool used to analyze an event and predict how and how often it will fail using graphics and statistics. It is used in engineering and business to aid process and system development. FTA is a deductive reasoning technique that focuses on one particular Read more…

Permit to Work (PTW)

The permit-to-work is a documented procedure that authorizes specific people to carry out specific work within a specified time frame. It sets out the mandatory precautions to complete the job safely and based on a risk assessment. The PTW requires the declarations from the people permitting the work and carrying Read more…

Hazard

‘A potential source of harm or adverse health effect on a person or persons is called Hazard. The Hazard and Risk terms are normally used interchangeably but the following simple example explains the difference between these two. If there was a spill of water on the floor then that water Read more…