Wednesday, June 19, 2013

Heat transfer

Been trying to figure out ways to regulate the temperature in the house since moving in. One thing is certain, the main section of the house needs insulation in the ceiling. Can't afford it at the moment but soon as I can.

The other day, I noted something which I hadn't noted before. While there are vents on the roof edge of the west side of the house but none on the east side. Considering most of the wind in summer comes from the west, moving east, heated air enters the vents but has no place to go. Add to that the fact that the sun hits that side of the house in the afternoon. causing the west side to heat up and hot air to migrate eastward in the ceiling space. 

Been thinking of getting a roof turbine for the past year. This observation makes it more definite and also illustrates the best placement for the first one. 

Maybe I'll go by Habitat for Humanity ReStore and see if I happen across a roof turbine. Strangely, they don't seem to be too common here. (While roof mounted swamp coolers are very common. Probably because of high theft rates.)

Speaking of which, I have done previous testing where I shaded the swamp cooler to see if it helped cool the house more. It did. A lot. Now I need to build a permanent shade structure for it. 

For tonight, the temperature outside dropped early. I turned the swamp cooler plus the AC. Getting the house nice and cool now!

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