Going to a Safe State: De-energize to Trip

“You may hate gravity, but gravity doesn’t care.”  — Clayton Christensen In May 1946, a scientist at Los Alamos was demonstrating the criticality of plutonium. The demonstration consisted of lowering the upper hemisphere of a spherical shell around a mass of plutonium. As he lowered it, however, it slipped and completed the spherical shell, causing [...]

By |2022-05-05T16:21:24-05:00May 5th, 2022|Process Safety, Process Safety Management|Comments Off on Going to a Safe State: De-energize to Trip

Occupancy: Getting It Right

“I don’t worry about the bullet with my name on it. Can’t do anything about that. It’s the bullet addressed to ‘Occupant’ that I worry about.”  — Drew Schmidt I don’t get as much junk mail as I used to.  Now, I get junk emails and junk texts. When I do get junk mail, however, [...]

By |2022-03-10T18:38:15-06:00March 10th, 2022|PHA, Process Safety, Process Safety Management|Comments Off on Occupancy: Getting It Right

Process Safety: Making Promises We Can’t Keep?

“Neither snow, nor rain, nor heat, nor gloom of night stays these courageous couriers from the swift completion of their appointed rounds.”  — Herodotus In 1912, one of the architects working on what is now known as the James A. Farley Building at the corner of Eighth Avenue and 33rd Street in Manhattan convinced the [...]

By |2022-03-03T15:38:40-06:00March 3rd, 2022|Current Events, Process Safety, Process Safety Management|Comments Off on Process Safety: Making Promises We Can’t Keep?

Cooking with Love: Multitasking in the Control Room

“There is time enough for everything in the course of the day, if you do but one thing at once, but there is not time enough in the year, if you will do two things at one time.”  — Philip Stanhope, 4th Earl of Chesterfield When our children were young, we ate a lot of [...]

It’s Magic: Documentation and Certification in PSM

“You don’t need to say any special incantation or sacrifice a stray cat or something first.”  — Kevin Hearne A common complaint about complying with OSHA’s Process Safety Management standard, 29 CFR 1910.119, is about the tremendous effort that goes into preparing all the required documentation and keeping it up to date. It is ironic, [...]

By |2022-01-13T15:03:14-06:00January 13th, 2022|Process Safety, Process Safety Management|Comments Off on It’s Magic: Documentation and Certification in PSM

E-Stops: The “Get Fired Button”

“Panic is a natural response to danger, but it’s one that severely compounds the risk.”  — David Ignatius At 2:30 am, on Saturday, October 2, 2021, a split in the San Pedro Bay Pipeline began discharging oil into the Pacific Ocean off the coast of California. Low pressure alarms in the control room indicated that there [...]

By |2021-11-18T14:52:54-06:00November 18th, 2021|Procedures, Process Safety, Process Safety Management, Workplace Safety|Comments Off on E-Stops: The “Get Fired Button”

Batch Processes: Consider a Procedural HazOp

“We know we need civilization and laws and procedures, but isn’t it frustrating? Wouldn’t it be great if we could just do what we needed to do?”  — Lee Child When someone thinks about a Process Hazard Analysis, a PHA, they usually think about a Hazard and Operability Review, a HazOp. And when they think [...]

By |2021-09-30T17:01:53-05:00September 30th, 2021|Chemicals, PHA, Procedures, Process Safety, Process Safety Management|Comments Off on Batch Processes: Consider a Procedural HazOp

Process Safety and Ethics

“Our very lives depend on the ethics of strangers, and most of us are always strangers to other people.”  — Bill Moyers One definition of ethics is “the moral principles that govern a person’s behavior.” Which means that engineering ethics would be “the moral principles that govern a person’s behavior while performing engineering.” Most of [...]

By |2021-09-02T14:55:12-05:00September 2nd, 2021|Process Safety, Process Safety Management|Comments Off on Process Safety and Ethics

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 [...]

By |2021-07-22T15:20:05-05:00July 22nd, 2021|Chemicals, Process Safety, Process Safety Management|Comments Off on Steam or Hot Oil: Which Is Safer?

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 |2021-07-01T14:57:47-05:00July 1st, 2021|Process Safety, Process Safety Management|Comments Off on SIS and the Bathtub Curve
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