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Admiring the San Jacinto star (Part 1)
Picture of the architectural drawing of the star that sits on top of the San Jacinto monument. I live south of Houston and everyday on my way to work I drive by the birthplace of Texas. There is a monument called the San Jacinto monument and on top of it sits a 45' tall star. For hours and days I have been admiring and studying this drawing. And I have now decided I must draw and model this for myself in 3D on my computer, and for that I have to decipher the coordinates for e
Fernando E. Romero, P.E.
Feb 11 min read


How I learned about "Facts Not Opinions" and the remarkable Sir David Kirkaldy
In 2009 doing some random google research I came across a quote "Facts not opinions". It completely took me down a rabbit hole to discover an incredible story that as an engineer really resonated with me. I've always held that some of the best engineers I've met, and my favorite whiskey are from Scotland. And here is proof. Sir David Kirkaldy does not only fall in the category of "best engineer", but is a true pioneer. We owe this guy so much, his contribution to engineer
Fernando E. Romero, P.E.
Dec 13, 20255 min read


Why we use displacement probes: Wobulator Experiment
OG Wobulator (TK-3) by Bently Nevada On my last post I wrote about why and how we use displacement probes or proximity probes to monitor...
Fernando E. Romero, P.E.
Oct 4, 20251 min read


Why we use displacement probes in rotating equipment and why we care about AC/DC voltages.
I have been thinking about this for months now, and I finally had time to sit at my desk this morning and type it out. Why do we...
Fernando E. Romero, P.E.
Sep 27, 20254 min read


How I make illustrations for the blog!
I have been using MS PowerPoint for 38 years. (I'm not sure if this tragic or something to be proud of) I use it to make Scalable Vector...
Fernando E. Romero, P.E.
Aug 30, 20251 min read


What is RUNOUT (Part 2)
Today I am going to show you what it looks like to record runouts with an indicator on a real shaft. Today I measured something really small in my garage!
I am going to use it to illustrate how to measure mechanical runouts.
Fernando E. Romero, P.E.
Jul 5, 20255 min read


What is runout? (Part 1)
Today’s article was inspired by a question from a reader who asked: Does TIR include the electrical runout? The answer is no, but maybe,...
Fernando E. Romero, P.E.
Jun 29, 20259 min read


API RP 687, Chapter 1, Section 10: PHASE I Rotor Inspections. Dimensional inspections (PART 2) - ALL ABOUT RUNOUTS
Let’s talk about runouts! What we measure, why we measure them. Rotating equipment needs to run smoothly. This statement can be...
Fernando E. Romero, P.E.
May 31, 20253 min read


API RP 687, Chapter 1, Section 10: PHASE I Rotor Inspections - Dimensional inspections (PART 1)
Sample of the forms filled during a Phase I. Today, let me tell you about the dimensional inspections that are part of the API 687 Phase...
Fernando E. Romero, P.E.
May 24, 20256 min read


API RP 687 Chapter 1, Section 10: Phase I Inspections and my first API conference
Why inspect? For someone in charge of an asset in a plant the answer may be obvious. But to understand WHAT we inspect and HOW we do it,...
Fernando E. Romero, P.E.
May 10, 20256 min read


Expected equipment lifespans and typing gloves.
In the next post, we will definitively get back to discussing API RP 687. Today, I want to get us ready by discussing equipment lifespans...
Fernando E. Romero, P.E.
Apr 5, 20253 min read


A knight’s tale about compressors and a plug on stoichiometry (or magic math as I call it)
A few weeks ago, I was trying to illustrate how centrifugal compressors actually increase the pressure of a gas by accelerating and then...
Fernando E. Romero, P.E.
Feb 22, 20255 min read


Compressors, running towards elevators, and dreaming of curly hair
In my last posts, we spent some time learning about steam turbines, and how useful they are because they can produce mechanical work....
Fernando E. Romero, P.E.
Feb 1, 20254 min read


Understanding how steam turbine blades work and the wonderful world of patents
In the last post, we saw how we use water and steam to generate power in the Rankine cycle. Today we dive inside the steam turbine itself...
Fernando E. Romero, P.E.
Dec 14, 20245 min read


The Rankine Cycle
In my last post, we met the guys that set the modern foundation for the steam cycle. Today we are going to dive a little deeper into what...
Fernando E. Romero, P.E.
Nov 28, 20247 min read


How can we talk about rotors in turbomachinery without a proper introduction!
(I had some help from the non-registered and unlicensed engineers in the family, coming up with these Pokémon inspired cards for my...
Fernando E. Romero, P.E.
Nov 7, 20245 min read


API RP 687 Chapter 1: Rotors – General Sections 1 through 9
There is no get out of Phase I free card! We have finally made it through Chapter 0, or as I call it, “the Introduction.” Today we begin...
Fernando E. Romero, P.E.
Oct 13, 20247 min read


API RP 687 - Chapter 0, Annex F: Coatings
On my last post, I was celebrating having completed the review of Chapter 0, API RP 687. It may have been a bit premature, since today I...
Fernando E. Romero, P.E.
Oct 5, 20244 min read


API RP 687 Chapter 0: Sections 15 thru 17 and a summary of the Annexes
We see the light at the end of the Chapter 0 tunnel! These three sections provide a comprehensive roadmap for developing a precise work...
Fernando E. Romero, P.E.
Sep 28, 20246 min read


API RP 687 Chapter 0: Section 13 Assembly and Section 14 Shipment and Storage Containers
This week we get some interesting topics in our journey through API RP 687 Chapter 0. Section 13: Assembly Section 13: Assembly is more...
Fernando E. Romero, P.E.
Sep 24, 20244 min read
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