When I inputed a fisheye image to calculate svf, I saw it also output the value of global radiation. Therefore, I want to make sure that whether I can get the value of global radiation if I input a fisheye image. Additionally, I am not sure which fisheye image should I input when I am calculate the value of PMV, the indoor one or the outdoor one. (all the other parameters, including temperature, relative humidity, and so on were measured indoor)
the fisheye image is used to determine global radiation and the mean radiant temperature. It therefore needs to be valid for the very location you want to obtain PMV for (so do all the other input parameters). If this location is indoors, everything needs to be indoors. However, if there is no more sky visible, you can replace the fisheye image by a input sky view factor of 0. If there is some sky visible, but the location is behind some window, the calculations might not be representative any more (a window (glass) will severely modify the longwave radiation fluxes). This can not be calculated by RayMan.
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23.03.2017 09:16
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