Search found 23 matches

by xyliu925
Thu Feb 28, 2019 10:31 am
Forum: EnergyPlus General
Topic: kWh electricity or refrigerant
Replies: 2
Views: 519

Re: kWh electricity or refrigerant

Luis Sousa wrote:Yes, the District Cooling output on the End uses table refers to the electricity consumption in kWh but it is also the cooling load because of the COP=1.
why COP=1? does it depend on the cooling setting we did?
by xyliu925
Sat Feb 09, 2019 11:58 pm
Forum: EnergyPlus General
Topic: kWh electricity or refrigerant
Replies: 2
Views: 519

kWh electricity or refrigerant

Hi all
After the simulation, in the summary page, under End Uses item, kWh for District Cooling means electricity kWh rather than refrigerant kWh, is that correct?

thanks
by xyliu925
Thu Sep 24, 2015 7:20 pm
Forum: EnergyPlus General
Topic: Reflective Foil Insulation
Replies: 4
Views: 99731

Hi Andy

Has this issue been fixed in DB3.4? I mean can I pick a built-in material that has different R values in up and down direction.

Thanks
by xyliu925
Sat Apr 25, 2015 7:57 pm
Forum: EnergyPlus General
Topic: glazing U >6.5
Replies: 1
Views: 45740

glazing U >6.5

Just from the simulation point of view. Can I create a glazing having U value >6.5?

Thanks,
by xyliu925
Tue Oct 09, 2012 11:09 am
Forum: EnergyPlus General
Topic: total cooling is missing
Replies: 0
Views: 8346

total cooling is missing

Hi All,

A zone total cooling is missing in the excel sheet exported from analysis tab after a simulation finished.

What could be the reason? I have virtual partition to separate a whole floor into 4 separate zones.

Thank you,

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by xyliu925
Wed Sep 19, 2012 12:19 pm
Forum: EnergyPlus General
Topic: out of string space
Replies: 1
Views: 2055

out of string space

Hi

I was runing a modelling which needs hourly simulation. The project crashed and poped out a message box - out of string space.

How do fix this?
by xyliu925
Mon Dec 12, 2011 12:19 pm
Forum: EnergyPlus General
Topic: skylights on the flat roof
Replies: 3
Views: 6566

>Does the roof become a transparent if it is 100% skylight? Yes If the roof is not transparent, it means no skylight. is this right? Thanks. >Does anyone have an idea on how to manually insert a skylight on a flat roof? You must go to the roof surface level first. Then you will be able to draw a wi...
by xyliu925
Mon Dec 12, 2011 4:41 am
Forum: EnergyPlus General
Topic: skylights on the flat roof
Replies: 3
Views: 6566

skylights on the flat roof

Does the roof become a transparent if it is 100% skylight?

Does anyone have an idea on how to manually insert a skylight on a flat roof? I can't do it.
by xyliu925
Fri Nov 18, 2011 1:28 am
Forum: EnergyPlus General
Topic: water source heat pump
Replies: 1
Views: 3491

water source heat pump

Does the V3 can simulate a water source heat pump system?
by xyliu925
Sat Sep 24, 2011 3:18 am
Forum: EnergyPlus General
Topic: heat recovery option disappeared
Replies: 0
Views: 2279

heat recovery option disappeared

Hi Everyone,

I was playing around the havc template options, from CAV to FCU. After a few trys, I can not find the heat recovery option unser the CAV.

How can I bring it back?

Cheers

BL
by xyliu925
Sun Jul 17, 2011 3:24 am
Forum: EnergyPlus General
Topic: temperatures in different height
Replies: 2
Views: 4155

Thanks

However, can I get that from EP directly?

Regards,
by xyliu925
Fri Jul 15, 2011 1:10 pm
Forum: EnergyPlus General
Topic: temperatures in different height
Replies: 2
Views: 4155

temperatures in different height

Hi

Does the DB allow user to define the temperture measure point? I mean at the same spot, I can get the different timeperature and velocity at different height in the conditoned space, in energy simulation not in CFD.
by xyliu925
Tue Mar 22, 2011 10:58 pm
Forum: EnergyPlus General
Topic: the cooling load has been calculated as zero
Replies: 4
Views: 34683

the cooling load has been calculated as zero

Hi Everyone

I am frustrated by this message after I set up HVAC and activity tabs.

Does anyone have a simular problem?
by xyliu925
Tue Dec 14, 2010 3:00 am
Forum: EnergyPlus General
Topic: import idf file
Replies: 1
Views: 5845

import idf file

I want to import idf because I need to import some constructions and schedules, which I had created using EP before.

Can I do it?
by xyliu925
Wed Dec 08, 2010 12:06 am
Forum: EnergyPlus General
Topic: wall(with hole)
Replies: 1
Views: 3101

wall(with hole)

Every time I draw two blocks adjacent, the wall shared with two blocks has default hole, which connect two blocks.

Can I turn this off? I don't want wall with a hole on it.

Thanks

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