Revision history [back]

Hello

I have a building including many differents surfaces in each zone. To avoid long simulation time i'm using the new object PerformancePrecisionTradeoffs of EnergyPlus (9.3) which allow to chose the Zone Radiant Exchange Algorithm between ScriptF which is a quadratic radiant exchange algorithm and a linear one called CarrollMRT.

When I compare the consumption of my building using the ScriptF algorithm and the CarrollMRT algorithm I notice a difference of 1% on the total consumption but at the hourly time step I sometime have differences of up to 80 kW or -70 kW corresponding to a difference of approximatly 12% on the whole consumption of my building.

I would like to know what is the difference between those two algorithm when there is a radiant floor heating in the zone ? Does it change a lot compared to a fan coil heating ?

Hello

I have a building including many differents surfaces in each zone. To avoid long simulation time i'm using the new object PerformancePrecisionTradeoffs of EnergyPlus (9.3) which allow to chose the Zone Radiant Exchange Algorithm between ScriptF which is a quadratic radiant exchange algorithm and a linear one called CarrollMRT.

When I compare the consumption of my building using the ScriptF algorithm and the CarrollMRT algorithm I notice a difference of 1% on the total consumption but at the hourly time step I sometime have differences of up to 80 kW or -70 kW corresponding to a difference of approximatly 12% on the whole consumption of my building.

I would like to know what is the difference between those two algorithm when there is a radiant floor heating in the zone ? Does it change a lot compared to a fan coil heating ?

Hello

I have a building including many differents surfaces in each zone. To avoid long simulation time i'm using the new object PerformancePrecisionTradeoffs of EnergyPlus (9.3) which allow to chose the Zone Radiant Exchange Algorithm between ScriptF which is a quadratic radiant exchange algorithm and a linear one called CarrollMRT.

When I compare the consumption of my building using the ScriptF algorithm and the CarrollMRT algorithm I notice a difference of 1% on the total consumption but at the hourly time step I sometime have differences of up to 80 kW or -70 kW corresponding to a difference of approximatly 12% on the whole consumption of my building.

I would like to know what is the difference between those two algorithm when there is a radiant floor heating in the zone ? Does it change a lot compared to a fan coil heating ?

Hello

I have a building including many differents surfaces in each zone. To avoid long simulation time i'm using the new object PerformancePrecisionTradeoffs of EnergyPlus (9.3) which allow to chose the Zone Radiant Exchange Algorithm between ScriptF which is a quadratic radiant exchange algorithm and a linear one called CarrollMRT.

When I compare the consumption of my building using the ScriptF algorithm and the CarrollMRT algorithm I notice a difference of 1% on the total consumption but at the hourly time step I sometime have differences of up to 80 kW or -70 kW corresponding to a difference of approximatly 12% on the whole consumption of my building.

I would like to know what is the difference between those two algorithm when there is a radiant floor heating in the zone ? Does it change a lot compared to a fan coil heating ?