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Dear All,

A thick wall passes through a wall of a zone (please see the image below).

Is it possible to define it in EnergyPlus, taking into account its shading effect as well as its thermal interaction with the zone ? (You know it is not an exterior shading device with thermal break. It is a continuous wall with significant heat transmittance) The only way I could imagine to define the thick wall, is to divide it into two parts (interior and exterior), and then define each part as a zone! So 2 new zones would represent the wall. But these zones won't have any cavity or air inside; because the wall is solid. then the question would be: What is the minimum size of a zone? Could a zone be as thick as a wall (e.g. 50 cm width)? What is the maximum thickness of a wall/floor/ceiling/etc. in a zone? Could they occupy the whole space of the zone? i.e. Could a wall have a width equivalent to half of the whole zone's width?

I asked the same question in HoneyBee Grasshopper page. Somebody suggested me to divide the mass into an InternalMass and a ContextSrf. But then there would be 2 problems:

1- It's not possible to assign an E+ construction material to the outer part of the mass (ContextSrf). Therefore its surface temperature would remain the same as the weather around. 2- The internal mass won't be affected by the sun. It also won't thermally interact with the outer part of the mass. Take into account that in reality there is no thermal break between the interior and the exterior parts of the mass. It is a single continuous concrete wall.

Actually I sent the same question in EnergyPlus helpdesk but still haven't received any answers. I would appreciate if you could reply to my question.

Best, Aryan

Dear All,

A thick wall passes through a wall of a zone (please see the image below).

Is it possible to define it in EnergyPlus, taking into account its shading effect as well as its thermal interaction with the zone ? (You know (Please take into account: 1- it is not an exterior shading device with thermal break. It is a continuous wall with significant heat transmittance) transmittance. 2- The walls of the room include large windows, therefore the inner part of the penetrating wall also recieves sun.) The only way I could imagine to define the thick wall, is to divide it into two parts (interior and exterior), and then define each part as a zone! So 2 new zones would represent the wall. But these zones won't have any cavity or air inside; because the wall is solid. then the question would be: What is the minimum size of a zone? Could a zone be as thick as a wall (e.g. 50 cm width)? What is the maximum thickness of a wall/floor/ceiling/etc. in a zone? Could they occupy the whole space of the zone? i.e. Could a wall have a width equivalent to half of the whole zone's width?

I asked the same question in HoneyBee Grasshopper page. Somebody suggested me to divide the mass into an InternalMass and a ContextSrf. But then there would be 2 problems:

1- It's not possible to assign an E+ construction material to the outer part of the mass (ContextSrf). Therefore its surface temperature would remain the same as the weather around. 2- The internal mass won't be affected by the sun. It also won't thermally interact with the outer part of the mass. Take into account that in reality there is no thermal break between the interior and the exterior parts of the mass. It is a single continuous concrete wall.

Actually I sent the same question in EnergyPlus helpdesk but still haven't received any answers. I would appreciate if you could reply to my question.

Best, Aryan

Dear All,

A thick wall passes through a wall of a zone (please see the image below).

Is it possible to define it in EnergyPlus, taking into account its shading effect as well as its thermal interaction with the zone ? (Please take into account: 1- it is not an exterior shading device with thermal break. It is a continuous wall with significant heat transmittance. 2- The walls of the room include large windows, therefore the inner part of the penetrating wall also recieves sun.) sun.)

The only way I could imagine to define the thick wall, is to divide it into two parts (interior and exterior), and then define each part as a zone! So 2 new zones would represent the wall. But these zones won't have any cavity or air inside; because the wall is solid. then the question would be: be:

What is the minimum size of a zone? Could a zone be as thick as a wall (e.g. 50 cm width)?

What is the maximum thickness of a wall/floor/ceiling/etc. in a zone? Could they occupy the whole space of the zone? i.e. Could a wall have a width equivalent to half of the whole zone's width?

I asked the same question in HoneyBee Grasshopper page. Somebody suggested me to divide the mass into an InternalMass and a ContextSrf. But then there would be 2 problems:

1- It's not possible to assign an E+ construction material to the outer part of the mass (ContextSrf). Therefore its surface temperature would remain the same as the weather around. around.

2- The internal mass won't be affected by the sun. It also won't thermally interact with the outer part of the mass. Take into account that in reality there is no thermal break between the interior and the exterior parts of the mass. It is a single continuous concrete wall.

Actually I sent the same question in EnergyPlus helpdesk but still haven't received any answers. I would appreciate if you could reply to my question.

Best, Aryan

Dear All,

A thick wall passes through a wall of a zone (please see the image below).

Is it possible to define it in EnergyPlus, taking into account its shading effect as well as its thermal interaction with the zone ? (Please take into account: 1- it is not an exterior shading device with thermal break. It is a continuous wall with significant heat transmittance. 2- The walls of the room include large windows, therefore the inner part of the penetrating wall also recieves sun.)

The only way I could imagine to define the thick wall, is to divide it into two parts (interior and exterior), and then define each part as a zone! So 2 new zones would represent the wall. But these zones won't have any cavity or air inside; because the wall is solid. then the question would be:

What is the minimum size of a zone? Could a zone be as thick as a wall (e.g. 50 cm width)?

What is the maximum thickness of a wall/floor/ceiling/etc. in a zone? Could they occupy the whole space of the zone? i.e. Could a wall have a width equivalent to half of the whole zone's width?

I asked the same question in HoneyBee Grasshopper page. Somebody suggested me to divide the mass into an InternalMass and a ContextSrf. But then there would be 2 problems:

1- It's not possible to assign an E+ construction material to the outer part of the mass (ContextSrf). Therefore its surface temperature would remain the same as the weather around.

2- The internal mass won't be affected by the sun. It also won't thermally interact with the outer part of the mass. Take into account that in reality there is no thermal break between the interior and the exterior parts of the mass. It is a single continuous concrete wall.

Actually I sent the same question in EnergyPlus helpdesk but still haven't received any answers. I would appreciate if you could reply to my question.

Best, Aryan