Forensic Engineers and Consultants

Tag Archive: PE

  1. WARREN Welcomes Mechanical Engineer Bob Hickman, P.E.

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    Please join us in welcoming Mechanical Engineer Bob Hickman, P.E., to the WARREN family! Bob has over 30 years of manufacturing and machine design experience in production and quality-driven environments. Bob holds a Bachelor of Science in Mechanical Engineering from Clemson University.

    Bob’s Areas of Expertise Include:
    -Machine Safeguarding
    -Machine Design
    -Equipment Failure
    -Mechanical Engineering
    -Industrial Accident Investigation
    -Codes & Standards
    -Machinery & Equipment Damage Assessment
    -Products Liability (more…)

  2. The Concepts of Hazard, Risk, and Harm in Machine Safeguarding

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    Hazard, risk, and harm are terms that are used in the world of machine safeguarding.   How do these words shape the concept of machine safeguarding? Let’s look a little deeper….

    Hazard, which Merriam-Webster defines as a noun, lists its first meaning as a source of danger.

    1: a source of danger

    2a: the effect of unpredictable and unanalyzable forces in determining events : CHANCE, RISK

      b:  a chance event : ACCIDENT  (more…)

  3. Taking a Practical Approach to Vehicle Fires

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    “On average, U.S. fire departments responded to a highway vehicle fire every 182 seconds,” according to the NFPA’s Fire Loss Facts Sheet.

    The National Fire Protection Association (NFPA) says that vehicle fires account for about 20 percent of all reported fires. Before I attempt to examine a vehicle fire loss, I like to check various consumer and government agencies websites to see if I can find any recall or historical data that might be important. This is true for heavy truck fires all the way to automobile and motorcycle fires. (more…)

  4. Lack of HVAC System Design and Poor Installation Lead to Extreme Conditions

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    Construction defects can appear in many forms.  The building does not necessarily have to fall down. There are many types of construction defects, including roof leaks, water intrusion into walls, as well as Heating, Ventilation, and Air Conditioning (HVAC) defects.

    One extreme example of this was an office complex I was called to for an investigation of the source of mold observed on the walls.  The occupants complained that they could not find a temperature setting on the thermostat where they could make the office comfortable. When I inspected the office, I couldn’t believe what I was seeing.  A band of black mold (more…)

  5. The Condensate System – An Important Item in Routine HVAC Maintenance

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    HVAC systems are almost everywhere in the United States now.  As a life-long resident of the humid south that grew up in a home without central air conditioning; I definitely appreciate the ability of a well-designed and maintained HVAC system to remove the oppressive summer humidity.

    The very humidity that makes your clothes damp with sweat and hastened the invention of cooled leather seats in automobiles also has another route to create havoc…condensate.

    In order for an HVAC or “air-conditioning system” to reduce the humidity in the air of your home or office it must first cool the air down to a point where the air can no longer keep the moisture in suspension as water vapor.  The moisture must condense… creating condensate.  This is what is happening when your cool beverage of choice “sweats” on the exterior of the container in the humid summer. Now that you have liquid water, as opposed to water vapor, this condensate must be directed out of your conditioned space to prevent water damage due to backed up or leaking condensate. (more…)

  6. OSHA’s Process Safety Management – Is This Process Covered?

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    In February of 1992, the OSHA Process Safety Management (PSM) standard was issued. The official title is: ‘Process Safety Management of Highly Hazardous Chemicals.’ As its title implies, not every facility is covered by this rigorous standard. A process must contain highly hazardous, as defined by OSHA, chemicals above a certain weight threshold, again defined by OSHA. Notice that this is a process by process determination, so there could be certain processes at a manufacturing facility that are not covered by this standard situated beside other processes that are.
    (more…)

  7. How a Central Indian Town Changed the United States Code of Federal Regulations

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    On December 3, 1984, at a pesticide ingredient manufacturing facility owned by Union Carbide, a leak occurred in the Methyl Isocyanate (MIC) plant. Due to the toxic nature of the gases released and the plant’s proximity to local residences, the death toll was in the thousands; both plant workers and nearby residents.  The first recorded public meeting in response to this incident was on December 9th, in Institute, WV, the site of Union Carbide’s only US MIC production unit.  Full disclosure: my father was a research & development chemist for Union Carbide and Institute is about 10 miles down the Kanawha River from my hometown of Charleston, WV. (more…)

  9. Commercial Gas-Fired Cookers Can Do More Than Burn

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    The first hazard that comes to mind when thinking about large scale ovens and steam kettles is burning or scalding injury. Carbon monoxide poisoning is just as dangerous but less understood, so oftentimes proper prevention methods are not followed. In the United States, this results in over 20,000 emergency room visits and over 400 deaths a year. Before we get to the case study and poisoning prevention methods, we need to know what CO is, where it comes from, and why it is poisonous. (more…)

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