I am trying to model a framed wall. can anyone please explain how this type of wall is modeled in energyplus? please see attached pic for reference. This is a traditional wall found in the Himalayan region made of stone, rubble and wooden frames.

image description

A suggestion (not a definitive answer). I'd model the assembly as a 3x-layered construction:

layer1: matA (150mm?), ~20% wood + ~80% stone/rubble
layer2: matB (300mm?), ~100% stone/rubble
layer3: matA (150mm?)

Material properties (a first rough guess):

wood (sal? cedar?)... k: 0.1 W/(m.K), Cp: 1500 J/(kg.K), rho: 500 kg/m3
stone/rubble (?) ... k: 2.0 W/(m.K), Cp: 1000 J/(kg.K), rho: 2000 kg/m3

... matA ('exposed area'-weighted composite): k: 1.6 W/(m.K), Cp: 1100 J/(kg.K), rho: 1700 kg/m3

That's the easy part. Tougher questions include wind exposure, air tightness, etc.

2.8k

Denis Bourgeois

answered 2022-08-26 15:55:09 -0500, updated 2022-08-26 15:57:54 -0500

edit flag offensive 0 remove flag delete link

Comments

I would second the described approach, likely values for thermal conduction can be tweaked/adapted by using the "mixed layer approach" according to ISO 6946.

AGeissler (2022-08-30 02:06:14 -0500) edit

add a comment see more comments

Question-and-Answer Resource for the Building Energy Modeling Community

I am trying to model a framed wall. can anyone please explain how this type of wall is modeled in energyplus? please see attached pic for reference. This is a traditional wall found in the Himalayan region made of stone, rubble and wooden frames.

Comments

1 Answer

Comments

I am trying to model a framed wall. can anyone please explain how this type of wall is modeled in energyplus? please see attached pic for reference. This is a traditional wall found in the Himalayan region made of stone, rubble and wooden frames. edit

Comments

1 Answer

Comments

I am trying to model a framed wall. can anyone please explain how this type of wall is modeled in energyplus? please see attached pic for reference. This is a traditional wall found in the Himalayan region made of stone, rubble and wooden frames.