My car starts reliably to -20F . The temperature outside it -18F but the
wind chill factor is -40F. Will my car start?

To all the science-minded people out there , the answer is "NO".

Explanation:





I am NOT going out to start it!

philo* wrote in :


My car starts reliably to -20F . The temperature outside it -18F but the
wind chill factor is -40F.



Wind chill does not apply to engines. If ambient is -18 the engine will
also be at -18 regardless of whether the wind is 1 mph or 500 mph.



Will my car start?

To all the science-minded people out there , the answer is "NO".

Explanation:

I am NOT going out to start it!




I'll come over and hot-wire it, thus proving you wrong.


--
Tegger

On 12/30/2013 09:31 AM, Tegger wrote:
philo wrote in :


My car starts reliably to -20F . The temperature outside it -18F but the
wind chill factor is -40F.



Wind chill does not apply to engines. If ambient is -18 the engine will
also be at -18 regardless of whether the wind is 1 mph or 500 mph.



yes, I am sure everyone here knows that, I was just making a joke.


Will my car start?

To all the science-minded people out there , the answer is "NO".

Explanation:

I am NOT going out to start it!




I'll come over and hot-wire it, thus proving you wrong.




Nope, I've lived in WI most of my life and stuff like cold weather
doesn't bother me.

On 12/30/2013 11:00 AM, philo wrote:
On 12/30/2013 09:31 AM, Tegger wrote:
Wind chill does not apply to engines. If ambient is -18 the engine will
also be at -18 regardless of whether the wind is 1 mph or 500 mph.



yes, I am sure everyone here knows that, I was just making a joke.


On the other hand. The guys in Buffalo Air, in
Alaska deal with wind chill. When an air plane
lands, how long till the oil is too thick to
restart? Wind chill is a serious factor.

--
..
Christopher A. Young
Learn about Jesus
www.lds.org
..

wrote in
:

On Mon, 30 Dec 2013 11:19:36 -0500, Stormin Mormon
wrote:


On the other hand. The guys in Buffalo Air, in
Alaska deal with wind chill. When an air plane
lands, how long till the oil is too thick to
restart? Wind chill is a serious factor.

True. The wind chill does affect how quickly a warmed up engine cools
down.





The phenomenon you're referring to is NOT "wind chill". The phenomenon
you're referring to is simply air movement stripping away or minimizing any
boundary layer, thus keeping the temperature gradient steeper than it would
be if a boundary layer were allowed to establish and thicken. That's why an
engine in the wind will cool faster than one in still air.

But either way, no engine will cool to BELOW AMBIENT, which is what the
term "wind chill" implies. The sensation of a below-ambient temperature can
only be felt by animate objects that generate their own heat. You, for
instance.


--
Tegger

On Mon, 30 Dec 2013 18:23:27 +0000 (UTC), Tegger
wrote:

wrote in
:

On Mon, 30 Dec 2013 11:19:36 -0500, Stormin Mormon
wrote:


On the other hand. The guys in Buffalo Air, in
Alaska deal with wind chill. When an air plane
lands, how long till the oil is too thick to
restart? Wind chill is a serious factor.

True. The wind chill does affect how quickly a warmed up engine cools
down.





The phenomenon you're referring to is NOT "wind chill". The phenomenon
you're referring to is simply air movement stripping away or minimizing any
boundary layer, thus keeping the temperature gradient steeper than it would
be if a boundary layer were allowed to establish and thicken. That's why an
engine in the wind will cool faster than one in still air.

No, it's *exactly* wind-chill. It's exactly the same process that
makes you feel colder when the wind is blowing. Your body is required
to make more heat to keep its temperature constant. The "off" engine
doesn't generate heat, so gets colder, faster, in the wind.

But either way, no engine will cool to BELOW AMBIENT, which is what the
term "wind chill" implies. The sensation of a below-ambient temperature can
only be felt by animate objects that generate their own heat. You, for
instance.

Neither will your corpse.

On 12/30/2013 1:23 PM, Tegger wrote:

On Mon, 30 Dec 2013 11:19:36 -0500, Stormin Mormon
wrote:


On the other hand. The guys in Buffalo Air, in
Alaska deal with wind chill. When an air plane
lands, how long till the oil is too thick to
restart? Wind chill is a serious factor.

The phenomenon you're referring to is NOT "wind chill". The phenomenon
you're referring to is simply air movement stripping away or minimizing any
boundary layer, thus keeping the temperature gradient steeper than it would
be if a boundary layer were allowed to establish and thicken. That's why an
engine in the wind will cool faster than one in still air.


https://en.wikipedia.org/wiki/Wind_chill

The speed of cooling has different effects on inanimate
objects and biological organisms. For inanimate objects,
the effect of wind chill is to reduce any warmer objects
to the ambient temperature more quickly.

--
..
Christopher A. Young
Learn about Jesus
www.lds.org
..

In article ,
Tegger wrote:
wrote in
:

On Mon, 30 Dec 2013 11:19:36 -0500, Stormin Mormon
wrote:


On the other hand. The guys in Buffalo Air, in
Alaska deal with wind chill. When an air plane
lands, how long till the oil is too thick to
restart? Wind chill is a serious factor.

True. The wind chill does affect how quickly a warmed up engine cools
down.





The phenomenon you're referring to is NOT "wind chill". The phenomenon
you're referring to is simply air movement stripping away or minimizing any
boundary layer, thus keeping the temperature gradient steeper than it would
be if a boundary layer were allowed to establish and thicken. That's why an
engine in the wind will cool faster than one in still air.

But either way, no engine will cool to BELOW AMBIENT, which is what the
term "wind chill" implies. The sensation of a below-ambient temperature can
only be felt by animate objects that generate their own heat. You, for
instance.


--
Tegger

Evaporative cooling?

--
There is always an easy solution to every human problem -- neat,
plausible, and wrong." (H L Mencken)

Larry W. - Baltimore Maryland - lwasserm(a)sdf. lonestar. org

On 12/30/2013 12:23 PM, Tegger wrote:
wrote in
:

On Mon, 30 Dec 2013 11:19:36 -0500, Stormin Mormon
wrote:


On the other hand. The guys in Buffalo Air, in Alaska deal with
wind chill. When an air plane lands, how long till the oil is too
thick to restart? Wind chill is a serious factor.

True. The wind chill does affect how quickly a warmed up engine
cools down.


The phenomenon you're referring to is NOT "wind chill". The
phenomenon you're referring to is simply air movement stripping away
or minimizing any boundary layer, thus keeping the temperature
gradient steeper than it would be if a boundary layer were allowed to
establish and thicken. That's why an engine in the wind will cool
faster than one in still air.

But either way, no engine will cool to BELOW AMBIENT, which is what
the term "wind chill" implies. The sensation of a below-ambient
temperature can only be felt by animate objects that generate their
own heat. You, for instance.

Spray water on the inanimate warm object and then wind chill may become
a factor. The way I understand wind chill is that sweat evaporating off
a living thing will cause it to loose heat much faster than if there is
no movement of air. The thing about nonliving things is that those
things don't "feel" the cold unless it's Mr.Data or other sentient
android possessing artificial nerve endings and artificial sweat glands. ^_^

TDD

philo* wrote in :

On 12/30/2013 09:31 AM, Tegger wrote:

Wind chill does not apply to engines. If ambient is -18 the engine
will also be at -18 regardless of whether the wind is 1 mph or 500
mph.



yes, I am sure everyone here knows that, I was just making a joke.



So was I. I'm not actually going to come over and hot-wire your car.



--
Tegger

On 12/30/2013 12:24 PM, Tegger wrote:
philo wrote in :

On 12/30/2013 09:31 AM, Tegger wrote:

Wind chill does not apply to engines. If ambient is -18 the engine
will also be at -18 regardless of whether the wind is 1 mph or 500
mph.



yes, I am sure everyone here knows that, I was just making a joke.



So was I. I'm not actually going to come over and hot-wire your car.





I know...in this weather you'd have to cold wire it.

philo* wrote in :

On 12/30/2013 12:24 PM, Tegger wrote:
I'm not actually going to come over and hot-wire your car.





I know...in this weather you'd have to cold wire it.


Good point.


--
Tegger

On Monday, December 30, 2013 10:31:21 AM UTC-5, Tegger wrote:

Wind chill does not apply to engines. If ambient is -18 the engine will
also be at -18 regardless of whether the wind is 1 mph or 500 mph.


If the wind is 500 mph, the engine would be warmer than -18 degrees due to the heat caused by air friction.

On 12/31/2013 08:02 AM, panabiker wrote:
On Monday, December 30, 2013 10:31:21 AM UTC-5, Tegger wrote:

Wind chill does not apply to engines. If ambient is -18 the engine will
also be at -18 regardless of whether the wind is 1 mph or 500 mph.


If the wind is 500 mph, the engine would be warmer than -18 degrees due to the heat caused by air friction.




More likely because it would blow the car all the way to the equator

philo wrote:
My car starts reliably to -20F . The temperature outside it -18F but the
wind chill factor is -40F. Will my car start?

To all the science-minded people out there , the answer is "NO".

Explanation:





I am NOT going out to start it!

Wind chill only applies to a mass, and how long it's subjected to a
temperature. Residual heat can be stored for a given time, especially if it
enclosed or insulated.
Just because the nights low is zero, does not mean the mass will be at
zero.

Greg

On 12/30/2013 08:27 PM, gregz wrote:
philo wrote:
My car starts reliably to -20F . The temperature outside it -18F but the
wind chill factor is -40F. Will my car start?

To all the science-minded people out there , the answer is "NO".

Explanation:





I am NOT going out to start it!

Wind chill only applies to a mass, and how long it's subjected to a
temperature. Residual heat can be stored for a given time, especially if it
enclosed or insulated.
Just because the nights low is zero, does not mean the mass will be at
zero.

Greg




yes I know, this was posted as a joke you know

philo wrote:
On 12/30/2013 08:27 PM, gregz wrote:
philo wrote:
My car starts reliably to -20F . The temperature outside it -18F but the
wind chill factor is -40F. Will my car start?

To all the science-minded people out there , the answer is "NO".

Explanation:





I am NOT going out to start it!

Wind chill only applies to a mass, and how long it's subjected to a
temperature. Residual heat can be stored for a given time, especially
if it
enclosed or insulated.
Just because the nights low is zero, does not mean the mass will be at
zero.

Greg




yes I know, this was posted as a joke you know
Hmmm,
No remote starter in this day and age? Why go out in the cold?
Just use remote starter. You can program it any way you want.
Mine has temp. sensor, it can start and run for 5 mins.(adjustable)
at certain temp. Or I can program it to run every 5 hours all night
for an example. You can do it with your smart phone as well.

On 12/30/2013 08:53 PM, Tony Hwang wrote:





yes I know, this was posted as a joke you know
Hmmm,
No remote starter in this day and age? Why go out in the cold?
Just use remote starter. You can program it any way you want.
Mine has temp. sensor, it can start and run for 5 mins.(adjustable)
at certain temp. Or I can program it to run every 5 hours all night
for an example. You can do it with your smart phone as well.





I have to go out to shovel anyway...no big deal.


Besides if it really got bad, being retired...I can just say,

"maybe tomorrow"

philo wrote:
On 12/30/2013 08:53 PM, Tony Hwang wrote:





yes I know, this was posted as a joke you know
Hmmm,
No remote starter in this day and age? Why go out in the cold?
Just use remote starter. You can program it any way you want.
Mine has temp. sensor, it can start and run for 5 mins.(adjustable)
at certain temp. Or I can program it to run every 5 hours all night
for an example. You can do it with your smart phone as well.





I have to go out to shovel anyway...no big deal.


Besides if it really got bad, being retired...I can just say,

"maybe tomorrow"
Hi,
I am retired too but I am busier than ever, LOL!

On 12/30/2013 10:00 PM, philo wrote:

I have to go out to shovel anyway...no big deal.


Besides if it really got bad, being retired...I can just say,

"maybe tomorrow"

But what about days there is no snow? It is a big deal then. When I
park my car at night I also put the heated seat to the "on" position.
Push a button and when I go out the car is warm, or at least nearly so.

Starts to cool down after being parked in the sun too!

On Mon, 30 Dec 2013 21:00:45 -0600, philo* wrote:

On 12/30/2013 08:53 PM, Tony Hwang wrote:





yes I know, this was posted as a joke you know
Hmmm,
No remote starter in this day and age? Why go out in the cold?
Just use remote starter. You can program it any way you want.
Mine has temp. sensor, it can start and run for 5 mins.(adjustable)
at certain temp. Or I can program it to run every 5 hours all night
for an example. You can do it with your smart phone as well.





I have to go out to shovel anyway...no big deal.


Besides if it really got bad, being retired...I can just say,

"maybe tomorrow"

I'm not retired (well, I am, but I'm not but would still say the
same. ...if I were still in such a hell hole. ;-)

Tony Hwang wrote:
philo wrote:
On 12/30/2013 08:27 PM, gregz wrote:
philo wrote:
My car starts reliably to -20F . The temperature outside it -18F but the
wind chill factor is -40F. Will my car start?

To all the science-minded people out there , the answer is "NO".

Explanation:





I am NOT going out to start it!

Wind chill only applies to a mass, and how long it's subjected to a
temperature. Residual heat can be stored for a given time, especially
if it
enclosed or insulated.
Just because the nights low is zero, does not mean the mass will be at
zero.

Greg




yes I know, this was posted as a joke you know
Hmmm,
No remote starter in this day and age? Why go out in the cold?
Just use remote starter. You can program it any way you want.
Mine has temp. sensor, it can start and run for 5 mins.(adjustable)
at certain temp. Or I can program it to run every 5 hours all night
for an example. You can do it with your smart phone as well.

Not everyone can afford a remote starter. They are still considered
somewhat of a luxury, even "in this day and age."

My son bought a used car. No remote starter. He planned on getting one
before winter. He decided new tires were a much better idea. Smart kid.

DerbyDad03 wrote:
Tony Hwang wrote:
philo wrote:
On 12/30/2013 08:27 PM, gregz wrote:
philo wrote:
My car starts reliably to -20F . The temperature outside it -18F but the
wind chill factor is -40F. Will my car start?

To all the science-minded people out there , the answer is "NO".

Explanation:





I am NOT going out to start it!

Wind chill only applies to a mass, and how long it's subjected to a
temperature. Residual heat can be stored for a given time, especially
if it
enclosed or insulated.
Just because the nights low is zero, does not mean the mass will be at
zero.

Greg




yes I know, this was posted as a joke you know
Hmmm,
No remote starter in this day and age? Why go out in the cold?
Just use remote starter. You can program it any way you want.
Mine has temp. sensor, it can start and run for 5 mins.(adjustable)
at certain temp. Or I can program it to run every 5 hours all night
for an example. You can do it with your smart phone as well.

Not everyone can afford a remote starter. They are still considered
somewhat of a luxury, even "in this day and age."

My son bought a used car. No remote starter. He planned on getting one
before winter. He decided new tires were a much better idea. Smart kid.

Hi,
I install them myself. This car came with one but the range was bad. I
replaced with another after market one after confirming with dealer it
won't void warranty. They are modular now, very easy to deal with.

On 12/30/2013 10:46 PM, DerbyDad03 wrote:


No remote starter in this day and age? Why go out in the cold?
Just use remote starter. You can program it any way you want.
Mine has temp. sensor, it can start and run for 5 mins.(adjustable)
at certain temp. Or I can program it to run every 5 hours all night
for an example. You can do it with your smart phone as well.

Not everyone can afford a remote starter. They are still considered
somewhat of a luxury, even "in this day and age."

My son bought a used car. No remote starter. He planned on getting one
before winter. He decided new tires were a much better idea. Smart kid.




A luxury I don't need.


First off I am very much used to the cold Wisconsin winters and to just
go out an start the car is no big deal.

I live very modestly on a relatively small amount of money,,,but because
I don't buy things I don't need I feel in a way that I am pretty well off.

I take my wife to NY once a year and we have a blast. Things like that
are more important than having a car starter etc.

On 12/30/2013 9:41 PM, philo wrote:



yes I know, this was posted as a joke you know

Some threads take on a life of their own. This one,
stirred not shaken (crimped or soldered) surprised
me, a lot.

--
..
Christopher A. Young
Learn about Jesus
www.lds.org
..

On 12/31/2013 12:37 AM, Stormin Mormon wrote:
On 12/30/2013 9:41 PM, philo wrote:



yes I know, this was posted as a joke you know

Some threads take on a life of their own. This one,
stirred not shaken (crimped or soldered) surprised
me, a lot.




Yes, it got serious.

Something I am not.

On 12/30/2013 6:27 PM, gregz wrote:
philo wrote:
My car starts reliably to -20F . The temperature outside it -18F but the
wind chill factor is -40F. Will my car start?

To all the science-minded people out there , the answer is "NO".

Explanation:





I am NOT going out to start it!

Wind chill only applies to a mass, and how long it's subjected to a
temperature. Residual heat can be stored for a given time, especially if it
enclosed or insulated.
Just because the nights low is zero, does not mean the mass will be at
zero.

Greg

I'm not saying that your statement is wrong, just incomplete.

Wind chill is about heat flow.
Wind impinging on an object can increase the rate of heat flow.
It cannot cause the temperature of the object to go below the
ambient temperature of the wind...absent other effects like evaporation.

For non-homogenous objects with imperfect conductivity, like the human
body, exposed skin can be damaged more quickly in cold wind, even if the
core temperature is unchanged.
Your car engine can't. It just cools faster, but only if you leave
the hood open and let the wind blow directly on the engine.

On 12/30/2013 9:43 PM, mike wrote:

I'm not saying that your statement is wrong, just incomplete.

Wind chill is about heat flow.
Wind impinging on an object can increase the rate of heat flow.
It cannot cause the temperature of the object to go below the
ambient temperature of the wind...absent other effects like evaporation.

For non-homogenous objects with imperfect conductivity, like the human
body, exposed skin can be damaged more quickly in cold wind, even if the
core temperature is unchanged.
Your car engine can't. It just cools faster, but only if you leave
the hood open and let the wind blow directly on the engine.

I was informed that wearing jewelry further
increased the effect of wind chill. This became
clear one time when I was helping clean up from
a furnace repair, in cold weather. Handling the
cold metal was far worse than I expected, and I
ended up going to town and buy some heavy gloves.
I don't wear any jewelry, or rings.

--
..
Christopher A. Young
Learn about Jesus
www.lds.org
..

On 12/30/2013 8:46 AM, philo wrote:


I am NOT going out to start it!

The poor thing, all alone and cold. We will see how it treats you this
spring!