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Robert Bean WSJ video

hot_rod
Member Posts: 24,576
https://www.wsj.com/video/series/wsj-explains/why-your-office-feels-so-cold/AC47D286-A15C-43B8-9433-4CA8C2F2C044
nice job explaining, good animation
nice job explaining, good animation
Bob "hot rod" Rohr
trainer for Caleffi NA
Living the hydronic dream
trainer for Caleffi NA
Living the hydronic dream
0
Comments
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74-78 can be fine if the humidity is low enough but go into any office building you will find the stat at 70 ....or lower if it will go lower.
Too many VAV systems with low ceilings and cold air dumping out on top of a person. It was common practice to set the vav systems for 55-degree discharge in the summer and 60 in the winter to avoid problems....It helped
More than 2 women(sorry) in any space and 1 will be unhappy
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Robert Bean's Integrated HVAC was one of the best classes I have taken. It was on heatspring.com, I don't think they offer it anymore. He is a master of the simple explanation."If you can't explain it simply, you don't understand it well enough"
Albert Einstein0 -
I love Robert’s intensity. He truly loves what he does, and he’s done sooo much. Thanks for sharing, HR!Retired and loving it.0
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Standard 55 was developed based on the work of Dr. Ole Fanger in the 70's. As Ed mentioned above, someone will always be unhappy. We considered this when developing the standard and the ASHRAE comfort tool. The idea is to achieve an acceptable PPD (Percent of People Displeased) typically less than ten percent but in some cases up to twenty percent, based on a PMV (Predicted Mean Vote). The PMV is derived from all of the data from Dr. Fanger's work. Considerations for the use of the space, age, gender, activity level, and clothing are all part of the standard. It's an interesting read0
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