Forensic Engineers and Consultants

Tag Archive: severe weather

  1. How Long Before the Pipes Freeze?

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    An unexpected severe winter freeze will remind many people and businesses that when water in a pipe freezes, the ice will expand and burst the pipe or pipe fitting.  Large losses will result from flooding when the temperatures rise.  Insulation will help, but not prevent freezing.  Insulation simply slows down the rate of heat loss.  The time of exposure to subfreezing temperature is an important factor.

    The American Society of Refrigeration and Air Conditioning Engineers (ASHRAE) Handbook of Fundamentals has a short entry on the topic (Chapter 23, page 23.5-6), which gives an equation for estimating the time that it will take an insulated pipe to freeze, (more…)

  2. How Long Before The Pipes Freeze?

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    The unusually severe 2014 winter in the eastern United States has reminded many people and businesses that when water in a pipe freezes, the ice will expand and burst the pipe or pipe fitting.  Large losses will result from flooding when the temperatures rise.  Insulation will help, but not prevent freezing.  Insulation simply slows down the rate of heat loss.  The time of exposure to subfreezing temperature is an important factor. (more…)

  3. Winter Safety Tips for Portable Electric Generators

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    During winter ice storms, power to residences is often lost and homeowners revert to using gasoline powered portable electric generators.  It is often thought by some homeowners that leaving a generator outside in the severe weather may damage it or affect its performance and therefore resort to bringing the unit inside the shelter, typically, the garage. This is particularly hazardous when the generator is run for an extended period of time as carbon monoxide (CO) poisoning from the toxic exhaust gas can cause death. In addition, other hazards including electric shock, electrocution, fire and burns potentially can occur. (more…)

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