Testing air-duct

[longnguyen9750]

Please tell me, how test air-duct ? What colour-smoke are used which it no inflluence on an environment ?

[Brian_UK]

What sort of test are you trying to do?

Leakage test
Airflow test

[icecube51]

in 1880's the indians use white smoke,now we have technologie and digital testers .

Ice

ps;just kidding.

[Brian_UK]

Seems to be a one question wonder sadly....

[thermo prince]

Hi Long Nguyen

Special smoke candles or a smoke generator were and are still sometimes used to check airflow patterns , leakage in rooms or ducting.
You can easily source them from USA etc by doing Google search. Problem is they cannot be sent on airfreight to HCM, HK etc from overseas now ( safety and security laws).
I heard of Dry Ice being used to generate such 'smoke effect' as alternative - but have not seen such test personally.

Hope it helps.

regards
T-P

[botrous]

you can make your smoke machine yourself if you connot obtain any.

All you need is a pump, a heater, nozzle and a blower.

Use a glycerine based solution , pumpe it to the nozzel in the direction of the heating plate , the blower will help the smoke to diffuse in the duct system.

A dense white smoke will be generated , if you can you can color the solution with any volatile colorant and you will get it colored.

Respects and regards

[Brian_UK]

Hi Botrous, good to read you again.

Hope all is well with you and yours.

[botrous]

Hi Botrous, good to read you again.

Hope all is well with you and yours.

Thanks Brian me and mine are doing very well . . .
what about you ??? how are you and the family doing?

[Brian_UK]

We are fine thank you.

Presently sitting here listening to the rain pounding on the windows

[botrous]

Glad to hear that you are ok , enjoy the season