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Temperature Inside A Car On A Hot Day  
User currently offline2H4 From United States of America, joined Oct 2004, 8955 posts, RR: 60
Posted (8 years 2 months 3 weeks 3 days 8 hours ago) and read 32767 times:
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Does anyone know what temperatures can be reached inside of a parked car on a very hot day? I'm sure there are several variables, but I'd like to see some actual numbers.

I tried searching for this information, but there doesn't seem to be much out there.

Thanks in advance!




2H4





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30 replies: All unread, showing first 25:
 
User currently offlineOly720man From United Kingdom, joined May 2004, 6686 posts, RR: 11
Reply 1, posted (8 years 2 months 3 weeks 3 days 8 hours ago) and read 32767 times:

Remember, according to the National Highway Traffic Safety Administration, 'a locked car sitting in the summer sun quickly turns into an oven,' and 'temperatures can climb from 78 degrees to 100 degrees in just three minutes, to 125 degrees in 6-8 minutes.'

http://pediatrics.about.com/od/safety/a/05_hot_cars.htm

(not sure I believe the 22 deg rise in 3 minutes because other sources have a longer time)


More info here.

http://www.dfps.state.tx.us/lookbefo...eyouleave/HotCarsTalkingPoints.asp



wheat and dairy can screw up your brain
User currently offlineDeltaGator From United States of America, joined Sep 2005, 6341 posts, RR: 13
Reply 2, posted (8 years 2 months 3 weeks 3 days 8 hours ago) and read 32767 times:

Quite warm but of course depends on the air temperature outside. This blurb is from a company that sells heat shades and such for cars so take it with a grain of salt.

"Results showed that a parked car without the use of a sunshade experienced extreme heat with the dashboard heating up to 192°F, high enough to cook a chicken and the steering wheel topping out at 191°F, high enough to grill a hamburger. In fact, a car parked in direct sunlight with closed windows can heat up to alarming temperatures in just minutes. The average temperature on the dashboard in a car without a sunshade, after fifteen minutes, reached 149°F. The testing further revealed that, in the same extreme conditions, a car using an accordion style sunshade in the windshield was able to keep the dashboard surfaces an average of 43° F cooler.

Source: http://www.auto-expressions.net/pr_sun_protect.htm



"If you can't delight in the misery of others then you don't deserve to be a college football fan."
User currently offlineRaffik From United Kingdom, joined Feb 2006, 1716 posts, RR: 4
Reply 3, posted (8 years 2 months 3 weeks 3 days 7 hours ago) and read 32767 times:

I popped out to the bank earlier and when I got back, the digital temperature showed 28c. I had only been about 10 minutes. Mind, it is a lovely day today (in the UK anyway). It soon went down once I was on the move and switched the aircon on


Happy -go- lucky kinda guy!
User currently offlineMyt332 From United Kingdom, joined Sep 2003, 9112 posts, RR: 71
Reply 4, posted (8 years 2 months 3 weeks 3 days 7 hours ago) and read 32767 times:

Temperature in a parked car on a hot day? Well, 18c in ours usually.


You didn't say with the engine off.



One Life, Live it.
User currently offlineArmitageShanks From UK - England, joined Dec 2003, 3609 posts, RR: 15
Reply 5, posted (8 years 2 months 3 weeks 3 days 5 hours ago) and read 32767 times:

I've had VHS tapes melt and coke cans explode in my car due to the heat.

User currently offlineYYZflyer From Canada, joined Feb 2006, 3643 posts, RR: 4
Reply 6, posted (8 years 2 months 3 weeks 3 days 1 hour ago) and read 32767 times:

I've burned my hand on the metal part of the seatbelt. When I was in Florida I think the temp rose to around 120F.

 airplane 



Avoid hangovers, stay drunk.
User currently offlineBCNGRO From Andorra, joined Oct 2004, 584 posts, RR: 2
Reply 7, posted (8 years 2 months 3 weeks 2 days 23 hours ago) and read 32767 times:

It can get pretty hot, at least here. I guess the air inside a car parked in direct sunlight in a very hot summer day (35C/95F) can heat up to a temperature similar to that you would experience in a sauna (70C/160F - 80C/180F). I guess metal surfaces can get much hotter, though. You can actually get burned with them --and you would get burned in a sauna-- so I guess they might even get close to 100C/210F...

[Edited 2006-05-05 01:24:28]


At the bus station, buses stop. At the train station, trains stop. At my desk, I have a work station.
User currently offlineRedngold From United States of America, joined Mar 2000, 6907 posts, RR: 45
Reply 8, posted (8 years 2 months 3 weeks 2 days 23 hours ago) and read 32767 times:

It does not even have to be a hot day outside - it can get very hot inside a car on a 55-65F day if you have no windows/sunroof open. Also if your car is darker in color it will not reflect as much sunlight... but that's moot after a few minutes.


Up, up and away!
User currently offline2H4 From United States of America, joined Oct 2004, 8955 posts, RR: 60
Reply 9, posted (8 years 2 months 3 weeks 2 days 22 hours ago) and read 32767 times:
AIRLINERS.NET CREW
DATABASE EDITOR



Thanks for the input, everyone. I'm looking into the hazards (if any) of keeping a carbon-fiber bicycle in a car during a hot, sunny day. Certain carbon-fiber composites and their bonding materials could become damaged in higher temperatures...




2H4





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User currently offlineAirCop From , joined Dec 1969, posts, RR:
Reply 10, posted (8 years 2 months 3 weeks 2 days 21 hours ago) and read 32767 times:

Every summer the local news does a demonstration on how fast the temps in a vehicle goes up. It also interesting to see the effect on the reporter. By the way it gets hot here in Phoenix. Perhaps thats the reason why white is the #1 color for autos here.

User currently offlineAn-225 From United States of America, joined Sep 2000, 3950 posts, RR: 41
Reply 11, posted (8 years 2 months 3 weeks 2 days 21 hours ago) and read 32767 times:

Enough to cook a baby  Smile.

Alex



Money does not bring you happiness. But it's better to cry in your own private limo than on a cold bus stop.
User currently offlineCptkrell From United States of America, joined Sep 2001, 3220 posts, RR: 12
Reply 12, posted (8 years 2 months 3 weeks 2 days 21 hours ago) and read 32767 times:

Which is testimony to how far automotive technology has come when (generally) most cars can withstand incredible temperature extremes from high to low in short periods of time and systems functions usually still perform as per intent. Regards...jack


all best; jack
User currently offlineBobster2 From , joined Dec 1969, posts, RR:
Reply 13, posted (8 years 2 months 3 weeks 2 days 21 hours ago) and read 32767 times:

Quoting 2H4 (Thread starter):
I'd like to see some actual numbers.

Buy, and learn how to use, an actual thermometer.  Smile

This is supposed to be a forum for technical geeks, isn't it?

You're willing to trust complete strangers to tell you the temperature in your car and we don't even know what kind of car it is. Why can't you measure it?


User currently offlineBill142 From Australia, joined Aug 2004, 8439 posts, RR: 8
Reply 14, posted (8 years 2 months 3 weeks 2 days 21 hours ago) and read 32767 times:

Leather tends to be hot on the bum. I have one of those shade things but it only covers the front window. so it all depends on what angle you park your car on. If the rear and side windows are going to get more sun then the front, covering the front window is kind of useless.

User currently offline2H4 From United States of America, joined Oct 2004, 8955 posts, RR: 60
Reply 15, posted (8 years 2 months 3 weeks 2 days 21 hours ago) and read 32767 times:
AIRLINERS.NET CREW
DATABASE EDITOR




Quoting Bobster2 (Reply 13):
Why can't you measure it?

Well, Bobster, I'm having trouble altering my local climate. Try as I might, I just can't seem to increase the local high temperatures past the 70-degree range.

A keen reader will notice the original question referred to a very hot day, and allowed for variables.


 Wink




2H4





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User currently offlineLTBEWR From United States of America, joined Jan 2004, 13033 posts, RR: 12
Reply 16, posted (8 years 2 months 3 weeks 2 days 20 hours ago) and read 32767 times:

In a warm spring/fall and of course a typical Summer day in most the world, the tempatures can rise quickly to levels that can cause heat stroke and even death to humans and animals. All states have laws not allowing closed up cars with children or animals in them if the weather is hot. Some people have returned to their cars to find out the police have been called or a good samaritan has broken the windows to let air in or to save the life of a child or animal.

User currently offlineBristolFlyer From United Kingdom, joined May 2004, 2290 posts, RR: 0
Reply 17, posted (8 years 2 months 3 weeks 2 days 20 hours ago) and read 32767 times:

I saw an article on the news recently in Phoenix that a car left unattended in 110 can rise to 140 in as little as 10 mins. Then I would guess it would keep rising 'til it gets to a max, I would guess at about 150-160 degs.

You may want to do a search of the Phx news companies as they regularly have features about leaving kids in cars (seems to be about 10 deaths a yr in Phx alone).

BF



Fortune favours the brave
User currently offlineMDorBust From , joined Dec 1969, posts, RR:
Reply 18, posted (8 years 2 months 3 weeks 2 days 20 hours ago) and read 32767 times:

I've seen readings between 150 and 160 on my vehicles during Texas summers.

I would contact the manufacturer of the bike frame to see what temperature range is safe for it.... some carbon fiber assemblies can withstand a shocking amount of heat.


User currently offlineBobster2 From , joined Dec 1969, posts, RR:
Reply 19, posted (8 years 2 months 3 weeks 2 days 20 hours ago) and read 32767 times:

Quoting MDorBust (Reply 18):
some carbon fiber assemblies can withstand a shocking amount of heat.

The Space Shuttle uses carbon fiber for the nose cone and leading edges to withstand temperatues up to 2300 deg F.

Does a car get that hot in the Sun?


User currently offline2H4 From United States of America, joined Oct 2004, 8955 posts, RR: 60
Reply 20, posted (8 years 2 months 3 weeks 2 days 19 hours ago) and read 32767 times:
AIRLINERS.NET CREW
DATABASE EDITOR




Quoting Bobster2 (Reply 19):
Does a car get that hot in the Sun?

Of course not, but it doesn't matter, as the types of carbon fiber utilized in the bicycle industry vary wildly. Not all...or even most...of them use space-shuttle-grade carbon fiber. Temperatures approaching 200 degrees certainly have the potential to damage or degrade certain types of carbon.




2H4





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User currently offlineMDorBust From , joined Dec 1969, posts, RR:
Reply 21, posted (8 years 2 months 3 weeks 2 days 19 hours ago) and read 32767 times:

Quoting Bobster2 (Reply 19):
Does a car get that hot in the Sun?

Nope, which is why my carbon fiber rifle barrels are completely safe in my vehicle... but I doubt my rifle and his bike are made out of the same carbon fiber assemblies.


User currently offlineBobster2 From , joined Dec 1969, posts, RR:
Reply 22, posted (8 years 2 months 3 weeks 2 days 19 hours ago) and read 32767 times:

Quoting 2H4 (Reply 20):
Temperatures approaching 200 degrees certainly have the potential to damage or degrade certain types of carbon.

Park in the shade. Leave the windows open.

Why would you buy a fancy bike and leave it in the car?


User currently offline2H4 From United States of America, joined Oct 2004, 8955 posts, RR: 60
Reply 23, posted (8 years 2 months 3 weeks 2 days 18 hours ago) and read 32767 times:
AIRLINERS.NET CREW
DATABASE EDITOR




Quoting Bobster2 (Reply 22):
Why would you buy a fancy bike and leave it in the car?

I personally wouldn't, but people do.




2H4





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User currently offlineDLKAPA From , joined Dec 1969, posts, RR:
Reply 24, posted (8 years 2 months 3 weeks 2 days 17 hours ago) and read 32767 times:

Quoting An-225 (Reply 11):
Enough to cook a baby

Knowing you, you're probably talking from experience...

Cars can heat up very, very quickly to very hot temperatures, the windows let light in (the light from the sun carries with it the sun's heat). The dark in your car absorbs the light and the heat, then when the stuff inside your car heats up, it heats up the air around it (which cant escape cause all the windows are closed). This explains why things such as a leather steering wheel and seat belts are hotter than the air itself inside your car. Long story short, if left long enough, you could probably cook things (like babies as our russian friend has pointed out) in your car.


25 BristolFlyer : I would hazard a guess at...people transporting their bike from one place to another. It's more secure to leave the bike in the car than to have it o
26 KevinL1011 : These are realistic figures in direct sun with ambient temp. 100-110.f. While visiting Phoenix, Az. one 110f day, I left my wallet in a briefcase sto
27 Post contains images 2H4 : I'm not sure why our friend Bobster seems to have such a problem with all of this...it's a very real concern for anyone transporting modern bicycles
28 Bobster2 : Because you can make measurements with a thermometer. The important thing is the difference between inside and outside temperature. If it's only 70 d
29 CPDC10-30 : I used to have a black car with a dark grey interior - needless to say my current car is white. Even at about 15-20C outside, if it was sunny the temp
30 Post contains links and images Sprout5199 : This happens alot here in Florida I'm sad to say. http://www.palmbeachpost.com/pbccent...aper/2006/05/02/s1b_baby_0502.html this just happened this w
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