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[EnergyPlus_Support] Internal Partitions do not participate in blocking solar radiation?
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- Subject: [EnergyPlus_Support] Internal Partitions do not participate in blocking solar radiation?
- From: Niraj Poudel <nirajpdl@xxxxxxxxx>
- Date: Fri, 14 Jun 2013 15:09:27 -0400
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- Delivery-date: Fri, 14 Jun 2013 13:09:30 -0600
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Dear All,
I am testing the placement of PCM in specific locations inside a room. So in that process I am placing partitions in front of a particular wall (equipped with PCM) to test to see is it is the direct beam solar radiation that is melting the PCM as opposed to conduction + convection effects. Now in that process I developed a 35' X 35' building and placed an interior partition (with boundary condition set to adiabatic) through the center of the room and then placed an additional partition dividing the room in 4 cubicles. So now I have 3.idf files.
a) No Partition
b) With 1 partition
c) With 2 partitions
The output I requested was "Surface Inside Face Exterior Windows Incident Beam Solar Radiation Rate per Area [W/m2]" for each wall. Now when I plot the results for say west wall 1 (i.e a portion of west wall) I get this:
<data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAsIAAAGfCAIAAADaiCM6AAAb/0lEQVR4nO3d6XWrOhQGUOqiIOqhGpqhGPIDD8yTgSBp75X1XpJrG+ngA59lx84aAIBDsv8eAAAQKjECADhIjAAADhIjWFCXRVk3TdNURVZUvd/MXSFvL7fj6lWRl/Xrv93fdm7o9ZusNfyHwUXypQEOLz9/W01vSAvz/oxrcWiT6jL/XHUw7H4l5wc2eatzZZ+74spenR3GCdUbzbRTkx17cmLzc7tkpXr9HTq3R9sZjW7qNZfVTaxtaGnv71KX+c4ytj2Uz3duXZZzNclfe60q9vcC4RIjWPI6eFRFURRF1TmYfA8Zn6Ph+/DROX7MXf1zqvgec/tnnXx0GPoeWKsiL+vXLX2O5nme9b2v/Rpcu/XvmN//WFRNXRbttdvBfE9g7ZDaa7XH1fEtNMOzaW9qy1sfnS2qoqheN9epZL/U7UzzwWBev3/d2Oxeq4osy7+T/dz4cHbtFdrR1WXx3rFTE+9Vrzvfxep1rjW+z3x3dG+Q3UlnWbvposizLC/LYXwc3FuGtSrr4T2wU73eDn3NsXPh7oyGN/Wey2ij/SpN3XM69+FeTUZ3m/ess3FxhhNp61C8O6vXJsNidgb1GvD0Xaj5dt6g+K8OboPHaTmIAIgRLHqfKsq6c477PNyqy/x9zGyauq5HR4+Zq3/+9RsgVlcj+sfTYYx4Hyh7J4/P6aQ7zu4Q3yeJz2mvO5feb7rfj07+3UNzd2orWx8/8q7LIv/mtHGpu7Wa+P1q2T+PEt+Xn5td+4syf91CryzDrXyr153vcvUmrjVRk2yiAv3yttV4TWniVr4n0OlaTd735hYJRjMa39TEfWk035UN9Wsynvtr1u/fLN0NBr+duw/3r/WZ4EznVuW7s6aLXxXf+wBpECNYVJdFWb0em76/a7oHwM6DtYkHITNX/1xlR4xovlecWI34xIiyc8vDx3ujU8P3WPm+qc5cmqrIy+o1oe5j8tHDt+F69HsAK1ufONh2H/R9TiSdK35rVX3/fXz+mCt7VXzzSvdk0l6qf4NF+TIsS3/i3er1KrFYve61xjHi+zi7u8TRv7N97wPd8970vWWqVuN74GiHfhb0OxfuzWh8U5240Nto7z42t6Hx7UzdbQZPUE3cPTq33wsprxgxXczefqsX7kJlL8cPi//+RoxIiRjBsros22XNpi7Lovycj4aP6N6Hy9F5cfrqnUdS22JE75g+eHjXiRGfxfXeakRTFXlZjp+wnjgRduLH3OPpZuJGhj/1HlPObH18sP2sIY9XI7q1Xl2NmCn7KEbMrka81kWq1+pIryzz1es9Ql6s3sYYMX5FR7+8szFicG8Z12riHjixQ/uPtWdWIyb2+MRqxFKMaDdUTNxzRju2v8A2ffcYF6H9brQXekUY3sZi507HiO8GxYikiBGsGB6MWt3HMf1H8KOHrBNXfy8554OF+t71hoeh/ovm2p/y3lmuqd7P/ra33LnW4NFedyOLqxGTz+5nM2ed0dSWt95fwM+K8vPgr246lZxbuRk937++10YxYmp278TQnnn6Y1hejejNd7F6g8WkwdP54wfg3Yfpn/Iurkb07y1zr43o3gOndmhd5llR9S4899qI903NvTZiMUZ0Zt29nWbibvN+mcX7F3PLKq9nHTp3h6m1k36ztBf9ZvLRXej78spx8YfrHGJEMsQIgGAc+6ua7aaX3PYSI1IiRgAE4/oYMVx1+p/bIBxiBABwkBgBABwkRgAAB4kRAMBBF8aIDACIwv/EiOtuPEQKcjolvYKqnk5JT6ekp1suqRjxCApyOiW9gqqeTklPp6SnEyMCoCCnU9IrqOrplPR0Sno6MSIACnI6Jb2Cqp5OSU/3hJLe8XqE/9ad7GwdLi3xdTceIgU5nZJeQVVPp6Sne0JJnzCGS4kRj6Mgp1PSK6jq6ZT0dE8o6RPGcKlbYsTrM93en4ebZVnnndSjL/FeCnI6Jb2Cqp5OSU/3hJI+YQyXuiNG1PXrA2XbzwUefBRL9CUGIFl7z3GDVxusqIrvx8OPTq+t7+fLZ7Ofy/r6sNX3h9p/vt844MnvhxfbcltLqqJdgOh+6v3qVgEgaLvOcZ8Lb71WVeR5/jqhVkVRtqfYXgD4fh57XeZF9UkVr6yQf0JGUVVFXpbF9/v6fc5uvy3ayy6sBVz82ojeR8t/U9PqKz8BIFCD09naHz1s9bq5qiiqumyDRFV8XzzQOdUPYsTninlZf5Yc5lYjXv/+zh+TqxQbz90/ndTfG62Kd74ZxIhfbhwAHmv7OW4cONav055L2yDxXvUfPL0xfFKj+6TASoyo3rmjTStFe/ViFCO2jPm3M31nVaT3/dpWASBou85x2f4nNdrzfF3meZ6vrEZ0r3FkNeIfY8QiMQKAWO09x+17Wv+77lCXebby2ojP5bIsy/O8qL7PULQrGe9sMffaCDECAG4V/TlOjAB2y7JG48IW0Z/jxAhgn9eaa5Zlmf6FFdH3iBgB7NNmiPZL+8Ky6JtEjAD2+SxFvL4H5kV/jhMjgH2y19MZjSc1YFX0PSJGALt9YgSwbPc5bndfLb7Z1JTvn4Ae+hCN0XjFCGAnz2jARkdixPartKlh8a2vRx+i8f2pOfQhGgsTFCOATcQI2Gh4jus8I/jT19dwNWLiEzSa3ttWLqxGbPkQjYUJihHAJp+u1b6wbN857hMRdlxr7UmN0YdozMeITR+isTBBMQLYRIyAja59UqNpZlcjBv98ZDVCjACuIUbARtef41ZixMSHaHw+C/TQh2gMiBHAbt2u1cGwIPpznBgB7CZGwEbRn+PECGA3MQI2iv4cJ0YAu43All the cases receive the same amount of beam solar radiation through the windows. Shouldnt the interior partition block the beam radiation from reaching the west surface?<br clear=>
P 198. Engineering Reference states that:
"Note however, DElight does not account for interior surface obstructions (e.g., partitions) in this initial interior illuminance/luminance distribution."
Is this the case for beam solar radiation as well? Any thoughts or comments will be appreciated.
Sincerely yours'
Niraj
--
Niraj Poudel, Architectural Engineer.
PhD student, PDBE Program.
Clemson University, Clemson, SC.
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