Adelaide heat set to soar to 45C on Thursday, close to 1939 record

[davidc4430]

Adelaide heat set to soar to 45C on Thursday, close to 1939 record

https://www.abc.net.au/news/2019-01-22/adelaide-heat-set-to-soar-close-to-1939-record/10734440

crossing fingers the power stays on today and tomorrow.

[davidc4430]

[davidc4430]

yesterday 48C

today 24C

now thats a cool change!

[tasfleur]

Thanks David, that's a great illustration .. I was wondering if it could work in sub-tropical or tropical areas because of the humidity, guessing it would be struggling under those circumstances.

[imastawka]

Good pics and explanation, David.

Daughter hates them.

Says they make things damp inside.

I don't think so, otherwise things would be mouldy, woudn't they?

But I think that's where the term Swampy comes from.

[k1ooo-slr-sales]

David, do you have your windows open or closed when using your cooler?

I worked in a school that had evaporative coolers and some staff would close all windows while others, self included, would open select windows.

[davidc4430]

no good for high humidity areas as they work by putting moisture into dry air to cool it then pumping the air through the home. they are very popular in south australia as we dont get many humid days.

[ecar3483]

They come in Esky size, too... so you can run one in the car...

🙂

[davidc4430]

if possible make a window open about 1/4 in every room to allow the air to flow out, taking the warm air out whilst the cool air comes in via the ceiling vents.

stawks, i only get the 'damp' if its a humid day. you can only put so much moisture into the air.

never had any mould problems here, in humid weather just run it on fan and it drys the house out.

[k1ooo-slr-sales]

exactly, by selectively opening windows you can determine the path the air takes from the cooling unit to the outside of the house/building.  The system relies on renewing the air in the cooled space every few minutes.

[davidc4430]

ducted reverse cycle will allways beat evaporative in cooling ability but at a huge cost to run them. as yesterday proved, even on a day with 48C my house remained comfortable (until i lost water)

if we lose power well it makes no difference.

also the reverse cycle just keeps recooling the same air so your house can get a bit wiffy (unless yours has acess to air from outside, whereas evaporatives are constantly using fresh air.