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Hello,

I have modeled the middle floor of an office building, I hope to get the consumption of the entire building of 5 floors by using zone multiplier. The floor I modeled has adiabatic boundary conditions for the roof and floor. The installations included is an airloop, central heating and cooling coil, reheat coils and baseboards for each zone. When modeling just 1 floor, I get following results:

When using Zone Multiplier 5 for all zones:

And this is my geometry:

Anyone more knowledge around why these results of heating and cooling consumption assume such different proportions when using zone multiplier? Thanks in advance!

Hello,

I have modeled the middle floor of an office building, I hope to get the consumption of the entire building of 5 floors by using zone multiplier. The floor I modeled has adiabatic boundary conditions for the roof and floor. The installations included is an airloop, central heating and cooling coil, reheat coils and baseboards for each zone. When modeling just 1 floor, I get following results:

When using Zone Multiplier 5 for all zones:

And this is my geometry:

Anyone more knowledge around why these results of heating and cooling consumption assume such different proportions when using zone multiplier? Thanks in advance!

Hello,

I have modeled the middle floor of a question regarding the Zone Multiplier function in EnergyPlus. I am modeling an office building, I hope to get the consumption of the entire building of 5 floors by using and I was planning on modelling the middle one and use zone multiplier. The floor I modeled has multiplier 5 on all zones. However, I noticed that the ratio of heating and cooling load differs strongly. I find this unusual as in my model have chosen adiabatic boundary conditions for the roof and floor. The installations included internal floors and ceilings, so I would expect heating and cooling loads to be around x5 (with a small difference of height effects). However, the results show that the total heating demand is an airloop, central heating and cooling coil, reheat coils and baseboards for each zone. lower and the cooling load much more:

When modeling just 1 floor, I get following results:using Zone Multiplier 1for all zones:

When using Zone Multiplier 5 for all zones:

And this is my geometry:

Anyone more knowledge around why these results of heating and cooling consumption assume such different proportions when using zone multiplier? multiplier?

Thanks in advance!

Hello,

I have a question regarding the Zone Multiplier function in EnergyPlus. I am modeling an office building of 5 floors and I was planning on modelling the middle one and use zone multiplier 5 on all zones. However, I noticed that the ratio of heating and cooling load differs strongly. I find this unusual as in my model have chosen adiabatic boundary conditions for the internal floors and ceilings, so I would expect heating and cooling loads to be around x5 (with a small difference of height effects). However, the results show that the total heating demand is lower and the cooling load much more:

When using Zone Multiplier 1for all zones:

When using Zone Multiplier 5 for all zones:

And this is my geometry:

Anyone more knowledge around why these results of heating and cooling consumption assume such different proportions when using zone multiplier?

Thanks in advance!

Hello,

I have a question regarding the Zone Multiplier function in EnergyPlus. I am modeling an office building of 5 floors and I was planning on modelling the middle one and use zone multiplier 5 on all zones. However, I noticed that the ratio of heating and cooling load differs strongly. I find this unusual as in my model have chosen adiabatic boundary conditions for the internal floors and ceilings, so I would expect heating and cooling loads to be around x5 (with a small difference of height effects). However, the results show that the total heating demand is lower and the cooling load much more:

When using Zone Multiplier 1for all zones:

When using Zone Multiplier 5 for all zones:

And this is my geometry:

Anyone more knowledge around why these results of heating and cooling consumption assume such different proportions when using zone multiplier?

Thanks in advance!