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Tag Archive: professional engineer

A Case Study in a Coal Mine: What are a Machine Rebuilder’s Responsibilities?
September 6, 2016 2:24 pm Leave a Comment
In November of 2010, a miner was injured by a roof bolting machine (roof bolter) in an Alabama underground coal mine. The roof bolter in question had undergone a complete rebuild intended to return the machine to the original equipment manufacturer’s (OEM’s) specifications. Warren was hired to analyze both the design of the roof bolter and the actions of the rebuilder to determine if either contributed to the unfortunate coal miner’s serious injury. Background information on coal mining and roof bolters, as well as an analysis of the roof bolter and the actions of the rebuilder are included. (more…)
Another Dimension of Engineering, Part 2: Visual Demonstrations Can Clarify the Issue
June 20, 2016 9:34 am Leave a Comment
In our last post on 3D scanning, we introduced Warren’s new Faro Focus X 330 three dimensional scanner. To recap, the Faro scanner combines three dimensional laser measurement with automated photography to capture 360-degree data from the real world. Potential applications include vehicle accident scenes and damaged vehicles, structural collapses, fire scenes, flood damage scenes, and machinery and equipment analysis, among others. In this post, we will highlight some of the outputs that can be created from the detailed data captured by the scanner. (more…)
Warren Adds Another Dimension of Engineering
May 3, 2016 9:49 am Leave a Comment
We at Warren are pleased to announce our recent purchase of a Faro Focus X 330 three dimensional scanner with FARO Scene image processing software. The scanner takes up to 976,000 data points per second and can scan objects at distances to 1000 feet. The scanner forms a point cloud of millions of data points while also capturing 360 degree panoramic photographs. By combining a series of scans, a three dimensional representation can be created that enables precise measurements, animations, and demonstrations. The scanner can capture imagery indoors, outdoors, and even in darkness. (more…)
Why Should I be Concerned About Galvanic Corrosion?
April 22, 2016 3:32 pm Leave a Comment
It is fairly common knowledge that the use of dissimilar metals in plumbing systems can quickly result in a leak due to a corroded pipe or fitting. (more…)
Uninvited House Guests: Mold and Other Fungal Growths
January 21, 2016 10:29 am Leave a Comment
The wet, relatively warm weather recently experienced in the southeast has caused a high incidence of mold and other fungal growth complaints in homes and other structures. Engineers at Warren are often called upon to investigate the cause(s) of these problems. (more…)
Analysis of Double Fatality Fire Allegedly Caused by a Portable Electric Heater
January 12, 2016 4:37 pm Leave a Comment
When fires occur, the effect on people’s lives is often devastating. This is especially true with fires that cause the death of a child. Clearly it is important to try and find the causes of such fires so that they can be prevented in the future. In such circumstances, it is especially important to follow a rigorous methodology in investigating the origin and cause of a fire. Investigators following a less than rigorous methodology may reach improper conclusions. Such was the case in a devastating fire investigated by Warren that was improperly alleged to have been caused by a supposedly defective product, a small electric space heater.
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Flood Damage to Electrical Equipment
October 8, 2015 9:38 am Leave a Comment
As a result of the recent weather, those of us in South Carolina have gained a renewed appreciation of the damage that can result from flooding. Even a few inches of flood water can result in property damage and a loss of services in addition to the immediate risk of physical harm. (more…)
Air Conditioning Evaporators
August 31, 2015 12:37 pm Leave a Comment
This is the third and final of three articles concerning the basics of air conditioning systems. This article concerns the evaporator, a part of the air conditioning system that is usually unseen inside the air handling unit. The evaporator, in concert with a fan, supplies cool air to a building interior. (more…)
Firefighter Burned Due to Improper Industrial Oven Design and Operation
August 28, 2015 9:37 am Leave a Comment
Industrial ovens and furnaces are used in many manufacturing processes. One use of industrial ovens is for drying and curing coatings on fabrics.

We investigated a fire loss involving a very large oven, 10 stories high, used for curing coatings on an industrial fabric. A young firefighter was burned in response to this fire, one of a string of many fires that had occurred involving the oven.

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Air Conditioning Condensing Units
August 4, 2015 3:24 pm Leave a Comment
The condensing unit is a key component of all vapor compression air conditioning systems. We are all familiar with condensing units as the noisy exterior portions of air conditioning systems that blow hot air to the environment. (more…)

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