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rafael.alonso's profile - activity

2019-03-30 12:59:01 -0500 commented question Splotchy-ness of EnergyPlus Shadow/Solar Distribution Calculations?

Does the ShadowCalculation object have any influence here? More specifically the Maximum Figures in Shadow Overlap Calcu

2019-02-21 13:01:25 -0500 commented question How to model ETFE material in E+?

Has anyone found a solution for this?

2019-02-16 08:56:57 -0500 answered a question EMS-Actuator Need for Complex Shading Control

Hi Amir, I'll reply here because I can't attach images in the comments section. I was referring to model the shading e

2019-02-15 09:35:27 -0500 commented question EMS-Actuator Need for Complex Shading Control

Hi Amir, Can you expand a bit more on how the Origami shading is activated? Is it deployed based on Indoor temperature?

2019-02-07 13:00:18 -0500 commented question AFN and Heating - Excessive ventilation volume triggers Heating Setpoint

Thanks for the suggestion Jason. I can't find how to upvote it, so I've added a reaction to the Github issue from the co

2019-02-07 12:59:56 -0500 commented question AFN and Heating - Excessive ventilation volume triggers Heating Setpoint

Thanks for the suggestion Jason. I can't find how to upvote it, so I've added a reaction to the Github issue from the co

2019-02-07 07:43:08 -0500 asked a question AFN and Heating - Excessive ventilation volume triggers Heating Setpoint

AFN and Heating - Excessive ventilation volume triggers Heating Setpoint Hi all, I´m running into a problem of coordiat

2018-12-26 21:00:16 -0500 marked best answer WindowEquivalentLayer model - Glass Visible Transmittance

Hi all,

I'm working with a model using the Construction:WindowEquivalentLayer object, as per this previous discussion. For some reason, I cannot adjust the parameters to get the Visible Light Transmittance of the whole window to be other than 0.

This may be something super simple, but I've been testing a bunch of options and parameters from the WindowGlazing Datasets, and all of them report a VLT of 0. Has someone run into something similar?

Many thanks in advance!

PS.Some screenshots of the model and report:

image description image description image description image description image description

2018-12-20 09:59:15 -0500 commented question Conversion from .dat to .epw fails with WeatherConverter

Hi @KLL, Did you manage to convert the .dat file to EPW? I´m facing the same issue with a TRY file from the German data

2018-12-19 21:46:45 -0500 commented answer Weather File of Past Year (2018)

I used to open the epw in excel, and adjust the variables for a certain period, so that I could calibrate the model befo

2018-12-19 21:38:37 -0500 received badge  Critic (source)
2018-12-19 14:19:16 -0500 commented question Conversion from .dat to .epw fails with WeatherConverter

Hi @KLL, Did you manage to convert the .dat file to EPW? I´m facing the same issue with a TRY file from the German data

2018-12-16 19:32:07 -0500 answered a question Weather File of Past Year (2018)

Normally, it is common practice to leave an extra datalogger outdoors while you are performing the measurements. Then yo

2018-12-02 07:40:36 -0500 edited answer CFD NatVent training

I'm not an expert in the field, but I've found Butterfly, from Ladybug tools as a very good introductory point to the va

2018-12-02 07:38:53 -0500 answered a question CFD NatVent training

I'm not an expert in the field, but I've found Butterfly, from Ladybug tools as a very good introductory point to the va

2018-11-28 12:01:40 -0500 received badge  Self-Learner (source)
2018-11-27 17:36:34 -0500 commented answer WindowEquivalentLayer - SHGC vs Solar Transmittance at Normal Incidence

I found all the answers to my questions below. Thanks!

2018-11-27 17:35:17 -0500 edited answer WindowEquivalentLayer - SHGC vs Solar Transmittance at Normal Incidence

Actually, after digging a bit more into it and in case someone is interested, all the answers and differences between th

2018-11-27 17:33:33 -0500 marked best answer WindowEquivalentLayer - SHGC vs Solar Transmittance at Normal Incidence

Hi all,

I'm working with the window equivalent layer model and there is something that I don't really understand regarding the reporting of SHGC and Solar Transmittance at Normal Incidence of the windows. From the output details document, I can see that the Solar Transmittance takes into account the layers of shading, while the SHGC doesn't.

image description

I understand that my construction with curtains (Drape material) - WINDOWEQLAYERCURT - has a different SHGC than Solar Trans. However, I don´t get what is going on with the construction without them - WINDOWEQLAYER - which is only composed of two layers of glazing with Argon Gas inbetween them.

WindowReport

Is the SHGC only related to one of the Glazing layers? Even if that is the case, my glazing specs don´t really specify anything like a SHGC of 0.556. These are the detailed constructions and materials:

image description

image description

Thanks! Rafael

2018-11-27 17:33:22 -0500 answered a question WindowEquivalentLayer - SHGC vs Solar Transmittance at Normal Incidence

Actually, after digging a bit more into it and in case someone is interested, all the answers and differences between th

2018-11-27 17:31:10 -0500 commented answer WindowEquivalentLayer - SHGC vs Solar Transmittance at Normal Incidence

Many thanks Aaron from the detailed answer. That makes sense but if I have no frame nor divider asigned to the window, w

2018-11-27 17:02:08 -0500 commented answer WindowEquivalentLayer - SHGC vs Solar Transmittance at Normal Incidence

Many thanks Aaron from the detailed answer. That makes sense but if I have no frame nor divider asigned to the window, w

2018-11-27 10:45:59 -0500 commented question How do I model a indoor waterfall/water fountain or equivalent object for evaporative cooling?

Probably something from this topic would be very helpful in this case.

2018-11-27 05:53:03 -0500 edited question WindowEquivalentLayer - SHGC vs Solar Transmittance at Normal Incidence

Window Equivalent Layer - SHGC vs Solar Transmittance at Normal Incidence Hi all, I'm working with the window equivale

2018-11-27 05:49:04 -0500 asked a question WindowEquivalentLayer - SHGC vs Solar Transmittance at Normal Incidence

Window Equivalent Layer - SHGC vs Solar Transmittance at Normal Incidence Hi all, I'm working with the window equivale

2018-11-25 16:47:59 -0500 edited answer Year in the EnergyPlus results

If I'm not mistaken, it all depends on your weather data. If you are using EPWs from EnergyPlus or any similar database,

2018-11-25 16:47:46 -0500 answered a question Year in the EnergyPlus results

If I'm not mistaken, it all depends on your weather data. If you are using EPWs from EnergyPlus or any similar database,

2018-11-25 07:23:29 -0500 edited question WindowEquivalentLayer model - Glass Visible Transmittance

WindowEquivalentLayer model - reporting Glass Visible Transmittance Hi all, I'm working with a model using the Construc

2018-11-25 07:22:48 -0500 asked a question WindowEquivalentLayer model - Glass Visible Transmittance

WindowEquivalentLayer model - reporting Glass Visible Transmittance Hi all, I'm working with a model using the Construc

2018-11-16 12:34:41 -0500 commented answer What are the available sources for historical weather data?

As far as I know, the files from NOAA include several fields for Solar radiation. However, I don´t think all the weather

2018-11-16 12:34:41 -0500 received badge  Commentator
2018-11-08 16:52:22 -0500 answered a question What are the available sources for historical weather data?

Another option for converting the DATA from NOAA is the opensource plugin, Dragonfly for Grasshopper/Rhinoceros, from La

2018-11-08 03:41:46 -0500 commented answer Does E+ consider interior shading when calculating the operative temperature?

I see. I was wondering whether that wouldn't alter the internal radiant temperature significantly. So far I had added an

2018-11-08 03:41:13 -0500 commented answer Does E+ consider interior shading when calculating the operative temperature?

I see. I was wondering whether that wouldn't alter the internal radiant temperature significantly. So far I had added an

2018-11-08 03:36:28 -0500 commented answer Does E+ consider interior shading when calculating the operative temperature?

I see. I was wondering whether that wouldn't alter the internal radiant temperature significantly. So far I had added an

2018-11-08 03:31:59 -0500 received badge  Enthusiast
2018-11-07 12:00:21 -0500 commented answer Does E+ consider interior shading when calculating the operative temperature?

I finally got the EMS Surface Construction State working, really handy. However, it seems that none of the shading objec

2018-11-06 09:45:57 -0500 commented question Too small difference between 10 and 45 cm insulation?

It seems that most of your heating load comes from infiltration (green in your energy balance). The losses through opaqu

2018-11-01 04:58:19 -0500 commented question Night shutter interior window - EnergyPlus

Just in case someone finds a similar issue. As answered in this other conversation, one possible work around is using E

2018-11-01 04:58:05 -0500 answered a question Night shutter interior window - EnergyPlus

Just in case someone finds a similar issue. As answered in this other conversation, one possible work around is using E

2018-11-01 04:53:37 -0500 marked best answer Does E+ consider interior shading when calculating the operative temperature?

Hi all,

I´m working on the thermal analysis of a wintergarden, made of polycarbonate with an internal shading that deploys depending on the temperature.

Is the operative temperature calculated with the temperature of the shading material, or with the temperature of the polycarbonate roof? I don´t see many changes between both options, and I guess it should make a difference.

Thanks,

Rafael