![]() According to the Atomic Heritage Foundation, a nonprofit based in Washington, D.C., fission occurs when a neutron strikes the nucleus of a heavy atom, like the isotopes uranium 235 or plutonium 239. Sorry if this is so lengthy, but I am very fond of the efficiency of Ecotect, hence I get anxious when I stall because I can't work it out.The intense energy released during an atomic explosion is the result of nuclear fission. Is it a possible bug or am I doing something wrong?" rad files and substitute them to the ecomaterials straight away somehow this does not work any longer. ![]() I am used to write my own rad materials, build my Ecotect library(with same names) and then export my geometry having Ecotect look up for. If instead I run my surface analysis and I calculate average daily values, shouldn't the scale read: W/sqm? This should be the case, because in a single hour case, solar flux and irrandiance match and mathematically the 'h' value can get omitted.Īs you can read I am in need of clarification. This is once again trivial does it mean that if you run the analysis on a grid, the resulting values get divided per area covered? I have tried to do that manually (on a 1sqm surface) but the results do not match. I have noticed that the results you get from the grid analysis are expressed as W/h whilst the ones from the surface analysis are expressed in Wh/sqm. Even more specifically, it seems that Ecotect manages to calculate the diffuse part pretty fine (I bet this is because it is independent from orientation), whilst it seems to underestimate the direct component.Ĭ)if i repeat the flat plane exercise with the analysis grid, my results then are simply incomparable, although I go through the same wizard choices. Although, when I tested a very simple flat horizontal plane, I do not achieve the irradiance (horizontal) I expect from the climate file values I am using. ![]() When I tested various orientation and angles I did get different results, which is positive. If I may be more specific:Ī) if you look into LondonE.wea there are some radiation values which are negative, how come?ī) given that the shading masks should register obstructions based on geometric angles (maybe I am wrong here.) this is how you can derive the angle of incidence (cosine law) at which radiation hits the tested surface, and find out where this is obstructed or not. My issue is that I don't exactly get how Ecotect calculates the shading mask in order to derive the radiation from the climate data. I have used the adjacencies trick too, without success. I am impressed by the speed of your reply so I am going to try my luck by copying a post I had sent a while ago on the Ecotect forum and has never been replied to.ġ) solar incidence analysis: I have tested and retested solar incidence analysis without getting a consistent result out of it. I will check that out to see how can it help me, although I have the impression that I have tried it already. If you want to see shadows projected only onto specific objects, then simply select them and tag them as Shaded Surfaces using the Shadow Settings panel. If you meant shadows in the 3D EDITOR view, then this is just a wireframe model which defaults to showing just ground shadows. Hence there is no right or wrong way of doing such an abstract representation, we just chose to show the full extent of each shadow's projection right down to the ground plane as this seemed to be what people most often expected to see. This is a highly abstract way of looking at things and something that you cannot possibly achieve in a physical world - but with a computer you can do pretty much anything. They will visually appear solid and opaque, but sunlight (and hence shadows) will travel right through. However, when you choose to 'turn off' the shadows of some objects, you are effectively making those objects transparent to the Sun. Thus, when you do a normal shadow projection in Ecotect, the shadows should look fine. A point shaded by one opaque object is just as much 'in shade' as a point shaded by many opaque obstructions. The thing is you don't normally see this because of the shadow cast of the actual obstruction. In fact, shadows do penetrate right through other obstructions in their way. I am assuming you mean shadows in the OpenGL view (VISUALISE tab), in which case what you are describing occurs only when you choose to show the shadows only from objects you have specifically selected or assigned a different shadow colour.
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