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Re: [EnergyPlus_Support] Need Clarification


Dear Jean,
Thank you. Actually I am simulating various HVAC system by EP. In that case I also found some difficulties. Such as at first I need HVAC design Annual Cooling Load which will be same for all HVAC system but energy will be different. But I am not sure and also in confuse how I can calculate Annual HVAC COOLING LOAD at first and then add various HVAC system to check efficiency. In that case if I want to calculate Annual Cooling Load/Demand in GJ should I need to add any HVAC template like ILAC? I have the following result but confuse which one is the Actual Annual Cooling load which will be the fixed for all simulation for comparison.

Zone Cooling

		Calculated Design Load [W] 	User Design Load [W] 	User Design Load per Area [W/m2] 	Calculated Design Air Flow [m3/s] 	User Design Air Flow [m3/s] 	Design Day Name 	Date/Time Of Peak 	Thermostat Setpoint Temperature at Peak Load [C] 	Indoor Temperature at Peak Load [C] 	Indoor Humidity Ratio at Peak Load [kgWater/kgAir] 	Outdoor Temperature at Peak Load [C] 	Outdoor Humidity Ratio at Peak Load [kgWater/kgAir]
	PRODUCTION ZONE 	 47358.51 	 47358.51 	 14.09 	 3.606 	 4.720 	SIZINGPERIOD 	6/8 13:00:00 	 0.00 	 26.69 	 0.01182 	 36.30 0.02419

Annual Building Sensible Heat Gain Components

		HVAC Input Sensible Air Heating [GJ] 	HVAC Input Sensible Air Cooling [GJ] 	HVAC Input Heated Surface Heating [GJ] 	HVAC Input Cooled Surface Cooling [GJ] 	People Sensible Heat Addition [GJ] 	Lights Sensible Heat Addition [GJ] 	Equipment Sensible Heat Addition [GJ] 	Window Heat Addition [GJ] 	Interzone Air Transfer Heat Addition [GJ] 	Infiltration Heat Addition [GJ] 	Opaque Surface Conduction and Other Heat Addition [GJ] 	Equipment Sensible Heat Removal [GJ] 	Window Heat Removal [GJ] 	Interzone Air Transfer Heat Removal [GJ] 	Infiltration Heat Removal [GJ] 	Opaque Surface Conduction and Other Heat Removal [GJ]
	PRODUCTION ZONE 	 413.354 	 -291.827 	 0.000 	 0.000 	 4.124 	 52.906 	 478.991 	 431.045 	 0.000 	 41.127 	 0.000 	 0.000 	 -42.533 	 0.000 	 -74.084 	 -1013.102
	Total Facility 	 413.354 	 -291.827 	 0.000 	 0.000 	 4.124 	 52.906 	 478.991 	 431.045 	 0.000 	 41.127 	 0.000 	 0.000 	 -42.533 	 0.000 	 -74.084 -1013.102

Sajal Chowdhury
B.Arch.(BUET), M.Arch.(BUET), M.Eng.(HU,Japan)C.



On Friday, July 1, 2016 12:20 AM, "Jean Marais jeannieboef@xxxxxxxxx [EnergyPlus_Support]" <EnergyPlus_Support@xxxxxxxxxxxxxxx> wrote:



I think this is the heat rejection of chillers, possibly also other heat pumps. Boiler gas exhaust is most likely not included. Have you checked the outputdetails  document. I can't be sure what maps to it. If you need a break out on your components per say, check the rdd for the fitting variable and report it at the desired interval such as hour, day, month, year or timestep.
On 30 Jun 2016 11:08 am, "Jim Dirkes <mailto:jim@xxxxxxxxxxxxxxxxxxxxxxxxxxx>jim@xxxxxxxxxxxxxxxxxxxxxxxxxxx [EnergyPlus_Support]" <<mailto:EnergyPlus_Support@xxxxxxxxxxxxxxx>EnergyPlus_Support@xxxxxxxxxxxxxxx> wrote:
>  
Sajal,
Have you looked at the yourfilename.MTD file? It includes information like this:
For Meter=CoolingCoils:EnergyTransfer [J], ResourceType=EnergyTransfer, EndUse=CoolingCoils, contents are:
CLGCOIL1_OFFICE:Cooling Coil Total Cooling Energy
or
For Meter=Gas:HVAC [J], ResourceType=Gas, Group=HVAC, contents are:
  RADIANTHTR_WAREHOUSE:WHSEZONE:Zone Radiant HVAC Gas Energy
> 
>   HTGCOIL1_OFFICE:Heating Coil Gas Energy
> 
>   HTGCOIL1_OFFICE:Heating Coil Ancillary Gas Energy
> 
>   HTGCOIL1_WAREHOUSE:Heating Coil Gas Energy
> 
>   HTGCOIL1_WAREHOUSE:Heating Coil Ancillary Gas Energy
This means that each component which is part of a particular meter is listed within the .MTD file so you can understand fully what contributes to the total.
"Heat rejection" is normally the energy rejected by a cooling tower or fluid cooler to the atmosphere. It's possible that there is another component which is included.
> On Thu, Jun 30, 2016 at 3:35 AM, Sajal Chowdhury <mailto:sajal_c@xxxxxxxxx>sajal_c@xxxxxxxxx [EnergyPlus_Support] <<mailto:EnergyPlus_Support@xxxxxxxxxxxxxxx>EnergyPlus_Support@xxxxxxxxxxxxxxx> wrote:
>>  
Can anybody give me a detail clarification about Heat Rejection:Energy Transfer?? If the annual value of HRET is 433.24 GJ, so Heat Rejection:Energy Transfer = sum of what type of energy (boiler/chiller/fan or etc.). I have attached a documents if clarify - it will be very helpful for me. Thank you in advanced.
>> 
>> Example here : EnergyTransfer:HVAC (305.59) = HeatingCoils:EnergyTransfer (77.08) + CoolingCoils:EnergyTransfer (228.51)
Annual and Peak Values - Other
>> 
>> 	>> 
>> 	>> Annual Value [GJ]	Minimum Value [W]	Timestamp of Minimum	Maximum Value [W]	Timestamp of Maximum
	EnergyTransfer:Facility	 1298.31	 -9207.91	05-MAY-13:00	 194685.98	31-MAY-15:00
	EnergyTransfer:Building	 226.56	 1.89	01-MAY-19:00	 32606.76	16-JAN-06:00
	EnergyTransfer:Zone:PRODUCTION ZONE	 226.56	 1.89	01-MAY-19:00	 32606.76	16-JAN-06:00
	Heating:EnergyTransfer	 40.34	 0.00	01-JAN-03:00	 25046.34	13-FEB-18:00
	Heating:EnergyTransfer:Zone:PRODUCTION ZONE	 40.34	 0.00	01-JAN-03:00	 25046.34	13-FEB-18:00
	Cooling:EnergyTransfer	 186.23	 0.00	01-JAN-01:00	 32606.76	16-JAN-06:00
	Cooling:EnergyTransfer:Zone:PRODUCTION ZONE	 186.23	 0.00	01-JAN-01:00	 32606.76	16-JAN-06:00
	EnergyTransfer:HVAC	 305.59	 -23368.38	12-MAY-15:00	 69158.26	31-MAY-15:00
	HeatingCoils:EnergyTransfer	 77.08	 -5868.12	05-FEB-14:00	 26485.16	11-JAN-09:00
	PlantLoopHeatingDemand:Facility	 77.08	 -5868.12	05-FEB-14:00	 26485.16	11-JAN-09:00
	PlantLoopHeatingDemand:HVAC	 77.08	 -5868.12	05-FEB-14:00	 26485.16	11-JAN-09:00
	HeatingCoils:PlantLoopHeatingDemand	 77.08	 -5868.12	05-FEB-14:00	 26485.16	11-JAN-09:00
	CoolingCoils:EnergyTransfer	 228.51	 -23368.38	12-MAY-15:00	 69158.26	31-MAY-15:00
	EnergyTransfer:Plant	 766.15	 0.00	05-JAN-18:00	 109237.07	08-JUN-13:00
	Boilers:EnergyTransfer	 61.52	 0.00	05-JAN-18:00	 58487.24	08-JAN-09:00
	Chillers:EnergyTransfer	 271.39	 0.00	01-JAN-01:00	 47000.00	19-MAR-14:00
	HeatRejection:EnergyTransfer	 433.24	 0.00	01-JAN-01:00	 62237.07	08-JUN-13:00

Sajal Chowdhury
>> B.Arch.(BUET), M.Arch.(BUET), M.Eng.(HU,Japan)C.
>> Assistant Professor, Dept. of Architecture (Study Leave)
>> Chittagong University of Engineering & Technology Chittagong 4349, Bangladesh
>> Present Address:
>> Laboratory of Environmental Ergonomics
>> (Planning and Performances for Built Environment)
>> Division of Human Environmental Systems
>> Graduate School of Engineering
>> Hokkaido University, N13-W8, Kita-ku, Sapporo 060-8628, JAPAN
>> Mobile(P): +818096126951, E-MAIL: <mailto:sajal_c@xxxxxxxxx>sajal_c@xxxxxxxxx
>> 
>> 
>> On Thursday, June 30, 2016 12:37 AM, Sajal Chowdhury <<mailto:sajal_c@xxxxxxxxx>sajal_c@xxxxxxxxx> wrote:
>> 
>> 
>> Dear James,
Thank you for your feedback. Actually I need Energy Flow data or a HVAC system that means for example if I simulate Fan-coil HVAC template then from the result I need Evaporation Cooling energy, Compressor energy, Condenser energy and total energy exhaust or use by this system for cooling. 
>> from the simulation .html file I found: Cooling coil total energy (sensible+latent), fan, pump etc. but I need to balance the energy flow of that particular HVAC system that is how much energy is needed for cooling and how much exhaust heat for that purpose. In that case I need to know from the simulation: 
Which one is Evaporation Cooling Energy/Load? is that cooling coil sensible energy??
2. Which one indicates Compressor Energy/Load?  is that the energy come from pump/fan??
3. Which one indicates Condenser Energy/Load? is that cooling coil latent energy??and finally
4. Which one indicates Total Exhaust Energy/cooling Load from html or another file? 
Thank you and your suggestion will be great help for my clarification. 

Sajal Chowdhury
>> B.Arch.(BUET), M.Arch.(BUET), M.Eng.(HU,Japan)C.
>> 
>> 
>> 
>> On Thursday, June 30, 2016 12:16 AM, "Jim Dirkes <mailto:jim@xxxxxxxxxxxxxxxxxxxxxxxxxxx>jim@xxxxxxxxxxxxxxxxxxxxxxxxxxx [EnergyPlus_Support]" <<mailto:EnergyPlus_Support@xxxxxxxxxxxxxxx>EnergyPlus_Support@xxxxxxxxxxxxxxx> wrote:
>> 
>> 
>>  
â??Then I think I need better (more detailed) explanationâ?? of what your are trying to accomplish.
>> One more thought: The .html file does not show results of your Output:Meter objects. for those results, you need to open and review the yourfilenameMeter.csv file.
>> On Wed, Jun 29, 2016 at 8:17 AM, Sajal Chowdhury <mailto:sajal_c@xxxxxxxxx>sajal_c@xxxxxxxxx [EnergyPlus_Support] <<mailto:EnergyPlus_Support@xxxxxxxxxxxxxxx>EnergyPlus_Support@xxxxxxxxxxxxxxx> wrote:
>>>  
Really Confused....already checked Output:Meter!

Sajal Chowdhury
>>> B.Arch.(BUET), M.Arch.(BUET), M.Eng.(HU,Japan)C.
>>> 
>>> 
>>> 
>>> On Wednesday, June 29, 2016 8:36 PM, "Jim Dirkes <mailto:jim@xxxxxxxxxxxxxxxxxxxxxxxxxxx>jim@xxxxxxxxxxxxxxxxxxxxxxxxxxx [EnergyPlus_Support]" <<mailto:EnergyPlus_Support@xxxxxxxxxxxxxxx>EnergyPlus_Support@xxxxxxxxxxxxxxx> wrote:
>>> 
>>> 
>>>  
Sajal,
Specific components of energy are not always listed in standard reports such as those in your .html file. For specific energy types, become familiar with Output:Meter and also the .mdd file, which lists the meters that are available for us in your specific model.
>>> On Wed, Jun 29, 2016 at 2:42 AM, Sajal Chowdhury <mailto:sajal_c@xxxxxxxxx>sajal_c@xxxxxxxxx [EnergyPlus_Support] <<mailto:EnergyPlus_Support@xxxxxxxxxxxxxxx>EnergyPlus_Support@xxxxxxxxxxxxxxx> wrote:
>>>>  
Dear All,
I am confused to separate the following term from the EP simulation result.
>>>> According to the basic HVAC system, I need to know from the attached file:
1. Which one is Evaporation Cooling Energy/Load?
2. Which one indicates Compressor Energy/Load?
3. Which one indicates Condenser Energy/Load? and
>>>> 4. Which one indicates Total Exhaust Energy/Load?
>>>> There are many outputs and indicator but I need the basic HVAC energy calculation that indicates
Room>> Evaporation>>Compression>>Condense>> Exhaust to Outside (How much energy)??
>>>> Please need the clarification and simplification. Thank you. 
>>>>  
Sajal Chowdhury
>>>> B.Arch.(BUET), M.Arch.(BUET), M.Eng.(HU,Japan)C.
>>>> Assistant Professor, Dept. of Architecture (Study Leave)
>>>> Chittagong University of Engineering & Technology Chittagong 4349, Bangladesh
>>>> Present Address:
>>>> Laboratory of Environmental Ergonomics
>>>> (Planning and Performances for Built Environment)
>>>> Division of Human Environmental Systems
>>>> Graduate School of Engineering
>>>> Hokkaido University, N13-W8, Kita-ku, Sapporo 060-8628, JAPAN
>>>> Mobile(P): +818096126951, E-MAIL: <mailto:sajal_c@xxxxxxxxx>sajal_c@xxxxxxxxx
>>> 
>>> 
>>> 
>>> --
>>> James V Dirkes II, PE, BEMP, LEED AP
>>> CEO/President
>>> The Building Performance Team Inc.
>>> 1631 Acacia Dr, GR, Mi 49504
>>> 
>>> Direct: 616.450.8653
>>> <mailto:jim@xxxxxxxxxxxxxxxxxxxxxxxxxxx>>>> jim@xxxxxxxxxxxxxxxxxxxxxxxxxxx
>>> 
>>> <http://buildingperformanceteam.com/>>>> Website l  <https://www.linkedin.com/pub/jim-dirkes/7/444/413>LinkedIn | <http://buildingperformanceteam.com/bpt-insights-blog/item/73-modeled-performance-isn-t-actual-performance>May 2016 ASHRAE Journal article on energy modeling
Either I win ? or I learn.
>>> 
>>> 
>> 
>> 
>> 
>> --
>> James V Dirkes II, PE, BEMP, LEED AP
>> CEO/President
>> The Building Performance Team Inc.
>> 1631 Acacia Dr, GR, Mi 49504
>> 
>> Direct: 616.450.8653
>> <mailto:jim@xxxxxxxxxxxxxxxxxxxxxxxxxxx>>> jim@xxxxxxxxxxxxxxxxxxxxxxxxxxx
>> 
>> <http://buildingperformanceteam.com/>>> Website l  <https://www.linkedin.com/pub/jim-dirkes/7/444/413>LinkedIn | <http://buildingperformanceteam.com/bpt-insights-blog/item/73-modeled-performance-isn-t-actual-performance>May 2016 ASHRAE Journal article on energy modeling
Either I win ? or I learn.
>> 
>> 
>> 
>> 
> 
> 
> 
> --
> James V Dirkes II, PE, BEMP, LEED AP
> CEO/President
> The Building Performance Team Inc.
> 1631 Acacia Dr, GR, Mi 49504
> 
> Direct: 616.450.8653
> <mailto:jim@xxxxxxxxxxxxxxxxxxxxxxxxxxx>> jim@xxxxxxxxxxxxxxxxxxxxxxxxxxx
> 
> <http://buildingperformanceteam.com/>> Website l  <https://www.linkedin.com/pub/jim-dirkes/7/444/413>LinkedIn | <http://buildingperformanceteam.com/bpt-insights-blog/item/73-modeled-performance-isn-t-actual-performance>May 2016 ASHRAE Journal article on energy modeling
Either I win ? or I learn.





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 Posted by: Sajal Chowdhury <sajal_c@xxxxxxxxx>

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