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You can get a copy at this link and a overview document that also includes the download link here.
#Ashrae psychrometric chart pdf with true free#
More likely the entrained condensate will be in a stratum of air which bypasses the wet/dry thermometers/transducers without affecting them, and the results will be skewed.Īnd calculating the mass air flow from the inlet condition, the outlet condition and the condensate rate.Ryan Stroupe of the Pacific Energy Center recently worked out a deal that allows him to provide a free limited capability version of Hands Down Software’s electronic psych chart. If the entrained condensate is re-evaporated into the discharge air stream and therefore can affect the final wet-bulb measurements, the correct results will be(obtained. Also, high air velocities over the cooling coil coupled with a large gap between drain pan and coil can induce high air velocities between the cooling coil and the drain pan, thereby causing condensate to be entrained into the discharge air-stream, rather than falling into the drain pan. Even small errors in measuring the entering and final absolute humidity could then generate very large errors in calculated air-flow and capacity.
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For example, small condensate flows will limit the reduction in absolute humidity across the coil, thereby resulting in a small absolute humidity difference. There are some serious potential pitfalls which can badly distort the results. wet-and-dry bulb thermometers using electric temperature-responsive elements
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in relation to fluid flow using a particular type of heating, cooling or sensing element