Search found 19 matches

by golden eagle
Tue Sep 08, 2015 10:26 am
Forum: MicroFlo
Topic: how Aux ventilation is treated in CFD calculation
Replies: 3
Views: 8504

Re: how Aux ventilation is treated in CFD calculation

Hi Harshadj

thank you for your response ,

if you include Aux Vent in the apache sim calculation before exporting boundary conditions , the room temperature in the entire room will reduce , which eventually impact the surface temperatures and the operating temperatures . IES uniformly reduce or ...
by golden eagle
Fri Jul 31, 2015 8:57 am
Forum: MicroFlo
Topic: how Aux ventilation is treated in CFD calculation
Replies: 3
Views: 8504

how Aux ventilation is treated in CFD calculation

Hi ,

I am working on a school project which is designed to operate on hybrid mode ( natural ventilation +aux vent to assist overheating when needed) , the issue here , I would like to see the impact of aux vent and how the temperature in the room changes as a result of free cooling delivered by the ...
by golden eagle
Mon May 11, 2015 3:20 pm
Forum: MacroFlo
Topic: Equivalent area issue?
Replies: 10
Views: 17507

Re: Equivalent area issue?

Phil


Thank you for your reply ,

I guess all user here understand equivalent orifice area is not the same as openable area and I assume we all configure each type opening as instructed in the IES Macroflow user guide. I suspect my original question is not well understood ?

I was trying to ...
by golden eagle
Wed May 06, 2015 1:47 pm
Forum: Part L2 - England & Wales
Topic: Enhanced ventilation
Replies: 0
Views: 14120

Enhanced ventilation

Hi
Do we need to apply enhanced ventilation for the rooms that are naturally ventilated without automatic control ( say windows or louvres are operated manually by the user based on alarm based system control , like traffic light based system , if the co2 or the temperature rises , user opens ...
by golden eagle
Wed Apr 22, 2015 9:09 am
Forum: Part L2 - England & Wales
Topic: how to do local vent system with mixing
Replies: 2
Views: 8488

Re: how to do local vent system with mixing

Ross, Thank you for your reply ,

No , I need to do this for both UK compliance and EPC calculations via Apache sim method ( DSM)

Air enters through the louvre opening poisoned at the highest point of the stack ,which is also used as a main circulation corridor , yes I agree checking HR option ...
by golden eagle
Tue Apr 21, 2015 10:11 am
Forum: Part L2 - England & Wales
Topic: how to do local vent system with mixing
Replies: 2
Views: 8488

how to do local vent system with mixing

I am enquiring how to model correctly the local auxiliary ventilation with heat recovery option (or mixing ) in EPC calculation

I am working on a school project where local single fan will be used to provide fresh air in the classroom , the design incorporates 2 fans ,one providing fresh air from ...
by golden eagle
Wed Mar 18, 2015 12:49 pm
Forum: MacroFlo
Topic: Equivalent area issue?
Replies: 10
Views: 17507

Re: Equivalent area issue?

Hi Ross ,

I understand the first part of equation where you get the projection area at horizontal level but why do you divide to window area, so say I have 2.1 x1.1window height and say window is allowed to open 100mm which is a typical restriction for safety, that gives you free area of 0.1*1.1/(2 ...
by golden eagle
Tue Mar 17, 2015 7:16 pm
Forum: VistaPro
Topic: NCM profiles for TM52
Replies: 1
Views: 6125

NCM profiles for TM52

Hi,

my questions below are regarding TM52 overheating assessment for the priority building school project in relation to occupancy profile

can anyone know if school terms and dates can be used for the occupancy profile in a school project ( example NCM educational profile defined by BRE) ,
I ...
by golden eagle
Tue Mar 17, 2015 6:29 pm
Forum: MacroFlo
Topic: Equivalent area issue?
Replies: 10
Views: 17507

Equivalent area issue?

Hi ,

Question: can anyone know how to calculate the equivalent orifice area (%) of the top hang opening (as shown in the macroflow opening section)

I am trying to justify equivalent orifice area calculated by IES in macroflow opening section

the following is the calculation method for the ...
by golden eagle
Tue Mar 17, 2015 5:59 pm
Forum: MacroFlo
Topic: Free Area of a Top Hung Window
Replies: 1
Views: 5175

Re: Free Area of a Top Hung Window

Ross,

I need to know the answer as well , I am wondering if you have already found out the answer of your question below ? if so would you please add here guidance or reference of it