Fábio Batista's profile - activity

My cooling thermostat setpoint is 24ºC. The Design Supply water temperatures are 7ºC in the system sizing the loop as we

Coil:Cooling:Water Design Load is 0 Hello everyone, I am currently modeling various FCU 4 pipe systems and I am strugl

Hello Everyone,

I am currently modelling an office Building with DOAS + non ducted FCU 4 pipe system for LEED purposes (90.1 - 2010), in Design Builder. Some zones have a single FCU, others have various FCU's of the same type, and other zones have a combination of FCU placed on ceiling and on the floor with different technical characteristics, but all have 3 speeds (low medium and high) and similar temperature and water flow regimes.

My question is, for each zone even if the FCU characteristics are different (specific fan powers, etc.) do you usually group all FCU into a equivalent one, or in this case would you model 2 FCU systems in a single zone. (See image below)

In other words, may I sum all FCU coil capacities, airflows, fan powers, etc. and model all FCU's using a single equivalent FCU object for each Zone Group?

I hope my question was clear. Thank you all in advance.

I already got an answer, so problem solved. All FCU in each zone are controlled by a single thermostat so we can group t

Design Builder - Multiple FCU's in single Zone Group Hello Everyone, I am currently modelling an office Building with D

Hey akey, I believe the nominal heat flow rate is the nominal capacity of the radiator at nominal conditions, i.e. Powe

@TNZ Energy, Hi. Sorry but I can´t help you on this. I have modeled the DOAS+FCU system on many occasions and only once

@TNZ Energy, Hi. Sorry but I can´t help you on this. I have modeled the DOAS+FCU system on many occasions and only once

Taking into consideration what is said in this discussion I would say you have a Nonresidential with more than 5 floors

Taking into consideration what is said in this post I would say you have a Nonresidential with more than 5 floors which

Hello all,

I am currently working on a LEED project in which some rooms are negatively pressurized (i.e more air is extracted than supplied in order to maintain a given pressure). The system consists of Fresh air AHU's + FCU-4pipe. How can I model this situation in detailed HVAC - Design Builder? I am not experienced with E+/Design Builder and implemented the following configuration.

Is there any way to impose a ventilation control to maintain a specific room pressure? Which object may I implement to represent this situation? I already tested some configurations (e.g. using exhaust fans in addition to the extract fan) without success.

Thank you all in advance.

@akey I think the nominal heat flow data you are looking for can be found on (as examples): tabes from pages 4 and 6 fo

@akey I think the nominal heat flow data you are looking for can be found on (as examples): tabes from pages 4 and 6 fo

Hey akey, I believe the nominal heat flow rate is the nominal capacity of the radiator at nominal conditions, i.e. Powe

Unbalanced Ventilation system - Design Builder Hello all, I am currently working on a LEED project in which some rooms

For anyone who may be interested on this topic, after contacting design builder support, the response was: "Unfortunate

For anyone who may be intersted in this subject, after contacting design builder support, the response was: "Unfortunat

WeatherShift does not provide all locations, as for instance for Portugal in my case. I use a small and simple softwar

Unbalanced Ventilation system - Design Builder Hello all, I am currently working on a LEED project in which some rooms

I recently modeled a District Heating and Cooling system and accounted for distribution losses using method 1 that you d

Verify that occ schedules are not 0 for the hours for the design runs.

@banicu, Sorry for the very late response but had a few other projects in the meanwhile. Regarding the building with

Hello @banicu, Sorry for the very late response but had a few other projects in the meanwhile. Regarding the building

Hello @banicu, Sorry for the very late response but had a few other projects in the meanwhile. Regarding the building

The Submissin was made today. I will let you know if BREEAM accept this.

Hello @banicu, Sorry for the very late response but had a few other projects in the meanwhile. Regarding the building

Hi @NassimJ, You say "If 5% of the occupied hours are outside Category B (method A described in the Annex H of the norm

Hi NassimJ, You say "If 5% of the occupied hours are outside Category B (method A described in the Annex H of the norm

Hi NassimJ, You say "If 5% of the occupied hours are outside Category B (method A described in the Annex H of the norm

Hi NassimJ, You say "If 5% of the occupied hours are outside Category B (method A described in the Annex H of the norm

I also would like to take the opportunity to ask if you always implement daylight control for lighting (dimming) in near

Sorry for the late reply but I was out of the office during last week. In what regards G value and LT, I implemented t

Hey Banicu, Firstly, thank you for the repply. I will keep applying the same methodology as you, modifying only the sp

BREEAM methodology questions Hello everyone, I am currently modeling an office building for BREEAM certification purpo

Thank you Dave! I will do it and then post their advice.

Design Builder/Energy Plus simulation warnings and bad results Hello everyone, I am currently modeling a building usin