Why are heat load calculations necessary?
What will be an ideal response?
Heat load calculations are necessary to properly match the equipment capacity to the building requirement.
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The moisture content in air (humidity) is measured by weight and expressed in pounds or ____________________.
Fill in the blank(s) with the appropriate word(s).
Which of these is the best strategy for ensuring that the liquid in the pipe will not vaporize under any circumstances?
A pipeline extends out from a shore plant into the shipping lane of a river. It’s used to carry a pressurized liquid to the receiving ships. But often the pipeline isn’t in use for hours or even days at a time, and the liquid simply sits in the pipeline. At many times of the year, the temperature of the water in the river is high enough that the liquid in the pipeline could boil. A. Use the van der Waals equation of state to find the critical point of the liquid, and then pressurize it above the critical pressure so it cannot vaporize. B. Use the Peng-Robinson equation to determine the bubble point pressure of the liquid at the average temperature of the river, and pressurize the pipe to above this value. C. Add a vent with a pressure relief valve to the pipeline, so that if the pressure exceeds a threshold value, material will be released. D. Add more insulation to the pipe. E. Each approach has a significant flaw.
A deep freeze would be an example of what coil temperature application?
What will be an ideal response?
Why is the term CI commonly used as an acronym for diesel engines?
A. All diesel engines use this fuel ignition method. B. Diesel engines compress a rich air/fuel mixture before igniting it with glow plugs. C. Older spark ignited diesel engines are no longer manufactured and CI is the new standard. D. It describes the type of emissions controls used on diesels.