My wife use to design air conditioning systems for warehouses. When deciding I couldn't stand the summertime weather in Dallas and needed to move I busted out her ASHRE Handbook to help me figure where to go. It was pretty interesting. Required cooling load including what the human body does to cool itself fallows average daily wet bulb temperature pretty closely it takes more energy to Air condition in on an average summer day in Chicago than it does in Phoenix. It is also much worse in Dallas than Phoenix. The gulf coast and southeast cities dominate the AC load requirements, yes it is heat and humidity not just heat. Alice Texas just inland of Corpus Christi was the worst place in the US that was listed. Another thing you will notice is the average daily swing in temperature for those high wet bulb temp cities is very small. It doesn't cool down when the sun goes down. Heavy humid air doesn't like to change temp very rapidly. Phoenix will add another 20 degrees in daily temperature swing making it so it can get quite comfortable at night even though its in the 100's during the day. the whole Midwest is not so good. I remember days in the 100's in Dallas where it stayed above 100 all night long. this sort of negates the benefit of avoiding cooling your house during the day while your not there because if you let the temp go up it requires a huge amount of energy during a very humid part of the day to get it to cool down again. Two central air handling units running full blast would take hours to get the house comfortable again and not likely before bedtime. Summertime evening thunderstorms that pop up out of nowhere are a frequent and almost nightly occurrence as the sun goes down. Ever been in a rainstorm when its 98 degrees out? I can tell you from experience physical activity in those conditions can put the human body into severe heat stress. You are not likly to see a combination of 98+ ambient temparature and rain at the same time in Phonex. You would also never think the sky is blue more of a hazy off white due to the humidity haze all the time.
My current house here in the San Juan Islands of North Western Washington has no air conditioning, Average summertime highs in the mid 70's. And during the winter here there is also minimal need for additional heat, Wintertime average lows in the mid 40's . The only better places climate wise is probably Hawaii and maybe a few locations in California in my view. Bob ----- Original Message ----- From: Jason C To: [EMAIL PROTECTED] ; Ray Ayala Cc: [email protected] Sent: Saturday, August 09, 2008 1:08 PM Subject: Re: NMC, NPC; E85 article The amount of energy consumed by heating a northern latitude house in the winter is greater than that used by cooling a more southern house in the summer. Phoenix excepted maybe :). --- On Sat, 8/9/08, Ray Ayala <[EMAIL PROTECTED]> wrote: From: Ray Ayala <[EMAIL PROTECTED]> Subject: Re: NMC, NPC; E85 article To: [EMAIL PROTECTED] Cc: [email protected] Date: Saturday, August 9, 2008, 12:43 PM Unfortunately they dump far more heat outside than they remove from the inside. ----- Original Message ----- From: [EMAIL PROTECTED] To: [EMAIL PROTECTED] Cc: [email protected] Sent: Friday, August 08, 2008 10:37 PM Subject: Re: NMC, NPC; E85 article I can understand warming caused by use of a furnace, but I'm less convinced about air conditioning. A/C simply takes heat from the sun that heats up a building and transfers that heat into the air. If the building was not there, the sun would still shine and the heat would still be here. Or am I missing something? Or, are you referring to the power plant generating the electricity that powers the A/C? In which case, yes, a considerable amount of electricity is used to heat and cool buildings. Jim in Tucson In a message dated 8/8/2008 5:33:36 P.M. US Mountain Standard Time, [EMAIL PROTECTED] writes: There's lot's of green emphasis on automobile usage but I never hear anybody mention the warming that's caused directly and immediately by air conditioner usage. I guess that might be a less popular subject with the voting public. -------------------------------------------------------------------- Looking for a car that's sporty, fun and fits in your budget? Read reviews on AOL Autos. _______________________________________________ Miatapower mailing list [email protected] http://list.miatapower.net/cgi-bin/mailman/listinfo/miatapower ------------------------------------------------------------------------------ _______________________________________________ Miatapower mailing list [email protected] http://list.miatapower.net/cgi-bin/mailman/listinfo/miatapower
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