[QUOTE=dkf]Could it have been the fact that with out the wind blowing the radiant heat from the sun could hit and reflect off of the surface of the ice around the hole, resulting in a magnafiacation of the suns heat thus heating the surface of the water in the hole. But the blowing wind acted as an insulation barrier between the warmth of the sun and the cold frigid iced water of the lake, and thus incapsulated the freezing temp of the ice with in the opening of the hole.

 

I have read the above post as to wind chill, Here is my story on wind chill.

I had an 89 c3500 with a 6.2 GM diesel (AND DONT GIVE ME ANY GUFF ABOUT IT EITHER, I have either heard it or said it.) It was a company truck.

It was susposed to be 20 deg the next morning it was January so they were pumping winter grade fuel. I was still using extra "Power Service" to prevent fuel jelling. I used the right amount and put it in each tank. the next morning I went and loaded my truck about 5 am (with engine ideling) and headed out on my route about 5:30 am drove about 8 miles with decreasing power finally my fuel filter clogged and I was sitting in a parking lot in a town of 200 with not even a gas station open. I always carried a spare fuel filter so I put it on and the damed thing wouldnt prime, jelley was all I could get.
I was pi$$ed I walked to a pay phone and called the wrecker.

long story short

I had mixed for 20 degrees wrecker driver told me always mix for 30 deg less then the temp was going to be.

from then on 1 gal gasolene to 20 gal of diesel PLUS power service.

jim

 

I drove past the equipment rental place last night doing 40mph. They had one of those signs that show the time and temperature, the temp was 35 deg. The air intake temp that I read on my scan gauge was 31 deg. No doubt the wind from moving air cooled the intake temp down.

 

DKF, How and where did you put a air intake temp sending unit at?
What kind of gauge did you use? I would like to install one of those in my 2005 V10.
Thanks ~Gage~

 

A couple weeks ago I bought the Scan Gauge 2 with the Blendmount from MGT Motorsports. www.mgtmotorsports.com It is a sweet little unit. I used the Xgauge feature to add the Trans temp, converter line pressure, intake temp and a couple others. There is no need to install any sensors it reads the trucks computer through the OBD port under the dash.

The only problem I had was with the 7' ethernet cable supplied with the blendmount kit. The 7' cable was too short to go from the scanguage mounted to the rear view mirror to under the dash the way I routed the cable. I bought a a 14' ethernet cable at staples and that solved the problem and I could route the cable so it is hidden. The scangauge uses a standard cat5 or cat 6 ethernet cable which is nice. Overall I'm happy with my scangauge.

 

If anyone wants to start a healthy argument, this is the subject to start it...not the HEET question, that's pretty cut-and-dried.

I means the wind chill question. Oh boy! They never should have foisted this complex scientific theory on a public so "science knowledge" starved...and it gets better all the time.

Wild chill only effects items having a heat difference, generally, more heat than the surrounding (ambient, remember that term form 9th grade general science?) air or environment. Wind chill (the weather folks sometimes use the term "the 'feels like' temperature" for science dummies) is a way to explain the RATE of heat change (usually it's a LOSS). Once the item reaches the temperature of everything around it, it has no temperature difference and wind chill no longer applies, so whatever the real temp. is is what your water, hand or cup of coffee will be.

A side note:

I worked for a number of years as a route delivery driver, three years of which were as an owner-operator independent route distributor in the Rochester, NY area. One of my fellow distributors was having trouble with his truck one cold winter day. This guy was a lifetime Roch. area resident and had run a truck for several years (everyone ran gasoline engines then, diesels were just becoming available in smaller trucks).

I couldn't believe my ears when he had absolutely no idea what I was talking about when I asked him if he ever used dry-gas or some such product. He'd never heard of doing so. Consequently, he had a load of water in his fuel system.

He moved to Atlanta, Ga....he'll make out better there, I think.

 

Except, again, in the case of water or other liquids that evaporate.

Moving air over the surface of a body of liquid WILL cool off the liquid below ambient air temp.

With solid objects, you are correct.

However, in a liquid (or any mass no matter the form) the molecules are all moving (vibrating) at a certain rate - higher temperatures make it faster, lower make it slower. The actual temperature of the liquid is an AVERAGE. Not all molecules are vibrating at the same rate. Some are faster (hotter), some slower (colder).

Some of the molecules are vibrating so fast that they leave the liquid. This is evaporation.

As the evaporation continues, the more molecules leave the liquid, LOWERING THE AVERAGE TEMPERATURE.

Moving air over the surface of a liquid speeds up evaporation. So, the remaining liquid cools down even faster.

This also happens with substances that sublimate like dry-ice (carbon dioxide). They go right from solid to gas. And even when kept at the right freezing temperature, some of the molecules are still hotter than the rest and will escape. Leaving the remaining block of dry-ice even colder.

I can definitely see where a 34-degree day would result in an ice-hole freezing over on windy days...

 

But if the ice itself is below 32 degrees and you put it in 32 degree water it will freeze some of the water even though the air temp is above 34 degrees. Left long enough at an air temp of 34 degrees it will all melt.

 

The water temp is always above 32 degrees otherwise it would be ice.

The surface water temp would be around 34-36 deg. Once you get into a certain depth of water the temperature is actually warmer than the water towards the surface during the winter.

 

32 degrees is the transition point of water to ice or ice to water. Put a thermometer in a glass of ice water that has sat for a while - the temperature will be 32 degrees. You will have both ice and water at 32 degrees.