Steam or Hot Oil: Which Is Safer?

“I have always fancied that the end of the world will be when some enormous boiler, heated to three thousand millions of atmospheric pressure, shall explode and blow up the globe… They [the Americans] are great boiler makers.”  — Jules Verne I was recently asked about using hot oil instead of steam to heat process [...]

SIS and the Bathtub Curve

“When I was young, I would sit in the bath and ideas would come to me. But I’m not young anymore, so now I just sit in the bath.”  — Aki Kaurismaki “We’re installing a safety instrumented system in our existing process. Do we have to pull out all the existing instruments and replace them [...]

By |2021-07-01T14:57:47+00:00July 1st, 2021|Process Safety, Process Safety Management|0 Comments

Whose Fault? What to Do with Crazy

“Minimizing your exposure to pathology goes a long, long way.”  — Dr. Susan Biali Haas When a sensor faults, it doesn’t stop providing information. It’s just unreliable information. It may be correct, it may not, but it is not to be believed.  Like a clock that has stopped but is still correct twice a day, [...]

By |2020-05-14T13:25:05+00:00May 14th, 2020|Process Safety, Process Safety Management|0 Comments

SIL Certification: Necessary or Sufficient?

“Contrary to what many parents tell their children, talent and hard work are neither necessary nor sufficient for economic success.”  —Robert H. Frank We are all guilty of telling tales we know to be untrue in order to encourage virtuous behavior. Parents tell their children to be good so Santa Clause will come. OSHA tells [...]

By |2019-05-23T16:10:03+00:00May 23rd, 2019|Process Safety|1 Comment

Check Valves: Why We Do the Things We Do

“To many, total abstinence is easier than perfect moderation.”  —St. Augustine “Check valves are worthless.” Every engineer I know has heard that. Many believe it. Quite a few have said it. Yet, check valves are still made and installed. How worthless could they be? Why Use Check Valves? Check valves are designed to allow flow [...]

By |2018-11-19T15:17:29+00:00November 19th, 2018|Process Safety, Process Safety Management|1 Comment

Caps and Plugs: Why We Do The Things We Do

“Chains of habit are too light to be felt until they are too heavy to be broken.”  —Warren Buffett Caps and plugs serve no process function. It is a common practice to install a cap or plug on the end of a line that is open to the atmosphere, but the justification is for safety, [...]

By |2018-10-18T15:27:00+00:00October 18th, 2018|PHA, Process Safety|0 Comments

Protection Under Pressure: Understanding HIPPS

“Everybody handles pressure differently.”  Gerry Cooney High Integrity Pressure Protection Systems (HIPPS) are a type of Safety Instrumented System (SIS) used as an alternative to or in conjunction with pressure relief systems.  HIPPS were added to the Standards as an alternative to pressure relief valves in August of 1996 after many safety professionals realized that [...]

By |2017-08-03T15:10:00+00:00August 3rd, 2017|Process Safety, Safety Lifecycle|1 Comment

Safety Lifecycle: Process Safety Information

“Great design is a multi-layered relationship between human life and its environment.” Naoto Fukasawa Generally speaking, in order to grasp a concept that is multifaceted, I’ve found that it’s easier to start big and then work my way down into the nitty gritty details. In my last post, we were exposed to a general overview [...]

By |2017-07-24T16:31:34+00:00June 20th, 2017|Process Safety, Safety Lifecycle|2 Comments
Go to Top