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initial version

What kind of energy consumptions is included in "water system" in Openstudio and EnergyPlus

Dear all,

I am trying to model a hot water system in Openstudio in which the water flowrate of the proposed case is 23% lower than the baseline.

From the results, the energy consumption under "pumps" was 23% lower in the proposed case which sounded fair. However,the energy consumption under "water system" of the proposed case was 98% lower than the baseline.

I am not sure what are included in the "water system" such that a 23% drop in flowrate resulted in such significant energy saving as all other input parameters in the two models were exactly the same.

I am therefore wondering if that is normal or if I have made a mistake somewhere in the inputs.

Daniel

click to hide/show revision 2
No.2 Revision

What kind of energy consumptions is included in "water system" systems" in Openstudio and EnergyPlus

Dear all,

I am trying to model a hot water system in Openstudio in which the water flowrate of the proposed case is 23% lower than the baseline.

From the results, the energy consumption under "pumps" was 23% lower in the proposed case which sounded fair. However,the energy consumption under "water system" systems" of the proposed case was 98% lower than the baseline.

I am not sure what are included in the "water system" such that a 23% drop in flowrate resulted in such significant energy saving as all other input parameters in the two models were exactly the same.

I am therefore wondering if that is normal or if I have made a mistake somewhere in the inputs.

Daniel

click to hide/show revision 3
No.3 Revision

What kind of energy consumptions is are included in "water systems" in Openstudio and EnergyPlus

Dear all,

I am trying to model a hot water system in Openstudio in which the water flowrate of the proposed case is 23% lower than the baseline.

From the results, the energy consumption under "pumps" was 23% lower in the proposed case which sounded fair. However,the energy consumption under "water systems" of the proposed case was 98% lower than the baseline.

I am not sure what are included in the "water system" such that a 23% drop in flowrate resulted in such significant energy saving as all other input parameters in the two models were exactly the same.

I am therefore wondering if that is normal or if I have made a mistake somewhere in the inputs.

Daniel

click to hide/show revision 4
No.4 Revision

What kind of energy consumptions are included in "water systems" in Openstudio and EnergyPlus

Dear all,

I am trying to model a hot water system in Openstudio in which the water flowrate of the proposed case is 23% lower than the baseline.

From the results, the energy consumption under "pumps" was 23% lower in the proposed case which sounded fair. However,the energy consumption under "water systems" of the proposed case was 98% 50% lower than the baseline.

I am not sure what are included in the "water system" such that a 23% drop in flowrate resulted in such significant a proportionally higher energy saving as all other input parameters in the two models were exactly the same.

I am therefore wondering if that is normal or if I have made a mistake somewhere in the inputs.

Daniel

What kind of energy consumptions are included in "water systems" in Openstudio and EnergyPlus

Dear all,

I am trying to model a hot water system in Openstudio in which the water flowrate of the proposed case is 23% lower than the baseline.

From the results, the energy consumption under "pumps" was 23% lower in the proposed case which sounded fair. However,the energy consumption under "water systems" of the proposed case was 50% lower than the baseline.

I am not sure what are included in the "water system" such that a 23% drop in flowrate resulted in a proportionally higher energy saving as all other input parameters in the two models were exactly the same.

I am therefore wondering if that is normal or if I have made a mistake somewhere in the inputs.

Daniel