huntan's profile - activity

Thanks! I'll check this out on a weekend.

I'm Currently at page 15 of Radiance Tutorial by Axel Jacbos. There's a part I don't understand:

Specifically, number 5: 'Create a file called furniture.rad from which you call xform to place a table in the scene and a couple of chairs around it. You'll find them in objects/table.rad'

xform hasn't been mentioned in the previous tutorials so I just searched for what the program does, apparently it applies transformations/rotations to an object. I'm not sure how to use xform in general, nor how to use it in this example.

Here's what I tried:

Inside objects/furniture.rad:
!C:\Radiance\bin\xform table >> furniture
!C:\Radiance\bin\xform chair >> furniture

I just called xform without any options because I'm assuming table and chair are already in the proper places? Which is I know, is probably wrong.

Apparently, objline is not available in Windows, so I use Honeybee for GH to view the rad files. And as expected, my rad files don't generate anything. I also tried importing the furniture and chair rad files but the Rhino viewport doesn't show anything.

What's the correct way to do it? Thanks.

Radiance Exercise from Radiance Tutorial I'm Currently at page 15 of Radiance Tutorial by Axel Jacbos. There's a part I

Radiance Exercise from Radiance Tutorial I'm Currently at page 15 of Radiance Tutorial by Axel Jacbos. There's a part I

Oh yeah. Thanks!

Would you also recommend The Lighting Handbook by IES?

Learning Resources for Photometry, Radiometry, Optics Hi, I'm looking for resources for understanding the topics in the

Learning Resources for Photometry, Radiometry, Optics Hi, I'm looking for resources for understanding the topics in the

Learning Resources for Photometry, Radiometry, Optics Hi, I'm looking for resources for understanding the topics in the

Learning Resources for Photometry, Radiometry, Optics Hi, I'm looking for resources for understanding the topics in the

Learning Resources for Photometry, Radiometry, Optics Hi, I'm looking for resources for understanding the topics in the

I specifically want to use the values for temperature..

There's this formula described by this study( https://www.researchgate.net/publicat...) where it describes how to calculate the Specific heat capacity (J/kg K) of a phase change material as a function of temperature (specifically, it was referring to 'node temperature', I'm not sure what that means but was it referring to the temperature values from the weather file? or surface temperature perhaps?).

How does one link weather file data or output data to Parametrics? Or did I interpret the equation incorrectly?

Here's a snapshot of the study reffering to this equation:

Or maybe it happens automatically? (I think it should, but the author was implying that it doesn't). The values I'm getting from my simulations are quite weird so I'm wondering if this is where I went wrong.

Thanks!

Hi thanks for the reply.

I'm not sure what you mean by that but do you mean that I should change the Algorithm for HeatBalanceAlgorithm from ConductionFinite to ConductionTransfer? But isn't CondFD the default algorithm for PCMS? (http://bigladdersoftware.com/epx/docs...).

Basically I'm wondering why the values for indoor and outdoor surface temperature (on the csv) aren't changing for this idf file when they should change as accompanied by the change in the enthalpy-temperature curve as described in MaterialProperty:PhaseChange.

I've tested it on the 'CondFD1ZonePurchAirAutoSizeWithPCM.idf' example file and it seems that there weren't any problems with the example file. I'm sure I have the required classes when I compared it against the example file.

For example when I change PCtemp 2 from 20 to 30 and PCtemp3 from 20.1 to 30.1, all the values for the surface temperatures remain the same, they should change but I have no idea why they don't. The example file shows a big difference, this one doesn't and I have no idea why...

https://mega.nz/#!Td8AgLaZ!v426mSD_rF... [idf file]

Thank you in advance!

Just wondering of this site (https://www.wunderground.com/) is a reliable source of climatic data.

Thanks.