"Time not Comfortable" calculation method

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My simulated office is made up of only one zone. I know that the standard imposes the (OR) relation the unmet hours calculation and so I used a single zone to avoid surprises. I have exported the mentioned Output variable into a spreadsheet that contains: Timesteps, MRT temperature, Ta temperature, this variable, and some other similar variables. The complete details can be found from here. For each time step there seems a complete compliance with the operative temp & humidity curves of the 55-2004 standard. But the summation does not give the expected result.

I looked at your spreadsheet file and the results are hourly, which is too coarse. As Jason said, you need to report at the detailed or timestep level, like this, Output:Variable,*,Zone Thermal Comfort ASHRAE 55 Simple Model Winter Clothes Not Comfortable Time,detailed; !- Zone Sum [hr]

note the "detailed" not "hourly" in the last input field.

Also the algorithm inside E+ does not place a minimum limit on humidity.

I ran the simulation again and checked that it gives a "detailed" output so that results are shown every 10 minutes. The program also scales the "Time not Comfortable" parameter with 1/6 to account for smaller time steps. However, the final sum gives the exact result I obtained in the previous simulation. The new output file can be found from here. And is called out2.

Remember to also report the count of people and filter out those times when there is nobody present to be uncomfortable.

@Archmage@JasonGlazer There seems a bug somewhere! I ran the simulation using Open Studio and Energy Plus for the out.idf file available in the following path: <osm_folder>\Built_stp7\run\3-UserScript-0 The Output Results available from the HTML file in the following path: <osm_folder>\Built_stp7\run\5-EnergyPlus-0\eplustbl.htm are different from those available from the HTML file that can be obtained by launching a separate EP simulation using EP Launch application. Where the results in both are different and those obtained from EP comply with the results from the spreadhsheet.Files're: Here

I would give Fanger's method a go when I sort out where the difference comes from for the default method. But like I said earlier to a colleague in the same thread: "The multi-zone calculation method may result in some surprises and so I ran my simulation with a single zone". The thermostat range is left default with +-0.2 tolerance and everything is left to default settings. You may want to have a look at the output results from here.