smoke stream generator for air flow

Anyone know of any thing that will genearate a smoke stream to indicate air flow in an electronic enclosure? TIA Frank

This was kind of a cool Amateur Scientist idea:

As cigs are probably illegal or unacceptable in the workplace, the joss* sticks JL mentioned (from your friendly neighborhood Indian/Chinese/New Age emporium) could be substituted.

• apparently Pidgin from Portuguse deus (god).

Best regards, Spehro Pefhany

FrankW wrote in news: snipped-for-privacy@magma.ca:

I've seen these used for checking HVAC air flow, but note the CAUTION about being corrosive.

Hello Frank,

Bull Durham hand rolled would be really cowboy style. For longer episodes and a nicer smell maybe Skandinavik Mixture pipe tobacco.

Regards, Joerg

"Spehro Pefhany" schreef in bericht news: snipped-for-privacy@4ax.com...

supply

----- When Chinese joss sticks are burnt they release significant amounts of polycyclic aromatic hydrocarbons (PAHs) like butanal and propanal, and of aldehydes, like formaldehyde and acetaldehyde. These have been linked to skin inflammation on contact (contact dermatitis), which is a marker for increased risk of childhood leukaemia, childhood brain tumour and cancer of the nasal passages and pharynx.

Burning the joss compound wrapped round a bamboo stick releases even higher levels of these chemicals, demonstrating that bamboo is also a natural source of PAHs.

-----

A red hot soldering iron dipped in oil (extra virgin olive oil perhaps) gives also a nice amount of smoke. Or feeding small amounts of oil through a red hot metal pipe. I also recall DUT's generating huge amounts of smoke all by themselves, automagically ;)

For a cheap and cheerful short-term indication, rub some wax on your soldering iron - but be aware that the heat of the iron may induce some extra convection.