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#1
posted to rec.boats
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Chilly Diesel Problems
"David Scheidt" wrote in message ... JoeSpareBedroom wrote: :"Eisboch" wrote in message ... : : "JoeSpareBedroom" wrote in message : ... : : : What about when it hits the windshield, under those same conditions? : : : Wind will cause an object to lose heat faster ... but will not cool it : below the ambient temperature. : : The evaporation of a liquid is a state change whereby energy is used and : heat is given off. : : Wind chill is a measurement of rapid cooling of living tissue. : : Eisboch : :We're going in circles. Stop focusing on the words "wind chill". Focus on :this: Assume you're a chemist, and you know for a fact that you personally :have correctly created windshield washer fluid that doesn't freeze at (to  ick a number) zero F., why does that fluid actually freeze at a higher:temperature, say 5 F., when the vehicle is moving and the fluid hits the :windshield? Evaporation drives this. Evaporation cools things off; it can cool things off below ambient temperature, despite multiple people in this thread saying it can't. Think about how an evaporative cooler works, or why an alcohol wipe is cool. Increasing the surface area increases the rate of evaporation. A film smeared across your windshield by the frozen wipers will evaporate quickly, leaving a nice thin sheet of ice. Wind, real or apparent from the car's motion, also increase the rate of evaporation. I also expect that the alcohol in the solvent evaporates more quickly than the water, so the ice on the window is mostly water. This is funny. A whole bunch of experts explaining 9th grade physics. Eisboch |
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#2
posted to rec.boats
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Chilly Diesel Problems
On Thu, 8 Feb 2007 13:32:33 -0500, "RCE" wrote:
"David Scheidt" wrote in message ... JoeSpareBedroom wrote: :"Eisboch" wrote in message ... : : "JoeSpareBedroom" wrote in message : ... : : : What about when it hits the windshield, under those same conditions? : : : Wind will cause an object to lose heat faster ... but will not cool it : below the ambient temperature. : : The evaporation of a liquid is a state change whereby energy is used and : heat is given off. : : Wind chill is a measurement of rapid cooling of living tissue. : : Eisboch : :We're going in circles. Stop focusing on the words "wind chill". Focus on :this: Assume you're a chemist, and you know for a fact that you personally :have correctly created windshield washer fluid that doesn't freeze at (to ick a number) zero F., why does that fluid actually freeze at a higher:temperature, say 5 F., when the vehicle is moving and the fluid hits the :windshield? Evaporation drives this. Evaporation cools things off; it can cool things off below ambient temperature, despite multiple people in this thread saying it can't. Think about how an evaporative cooler works, or why an alcohol wipe is cool. Increasing the surface area increases the rate of evaporation. A film smeared across your windshield by the frozen wipers will evaporate quickly, leaving a nice thin sheet of ice. Wind, real or apparent from the car's motion, also increase the rate of evaporation. I also expect that the alcohol in the solvent evaporates more quickly than the water, so the ice on the window is mostly water. This is funny. A whole bunch of experts explaining 9th grade physics. Eisboch For a very few of us, 9th grade was well over 45 years ago. I enjoyed and learned from this discussion. Remind me not to argue water vapor properties with you. -- ***** Have a super day! ***** John H |
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#3
posted to rec.boats
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Chilly Diesel Problems
"JLH" wrote in message ... Remind me not to argue water vapor properties with you. -- I prefer to call it a "discussion". Except, I am right. :-) Eisboch |
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#4
posted to rec.boats
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Chilly Diesel Problems
On Feb 8, 2:11 pm, "RCE" wrote:
"JLH" wrote in message ... Remind me not to argue water vapor properties with you. -- I prefer to call it a "discussion". Except, I am right. :-) I prefer to call it pizza. Then again, I'm a little weird. |
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#5
posted to rec.boats
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Chilly Diesel Problems
"RCE" wrote in message ... "JLH" wrote in message ... Remind me not to argue water vapor properties with you. -- I prefer to call it a "discussion". Except, I am right. :-) Eisboch Hey guys. Lets get serious. I need help. I've been trying to wind chill a beer for several days now. So far I haven't been able to reduce the brew's temp. below ambient, no matter how many fans I have blowing on it. I even tried to spritz it with water. Nothing I've tried works. I thought you guys were on to something with this wind chill theory, but alas, it's just a bunch of hot air. Jim |
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#6
posted to rec.boats
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Chilly Diesel Problems
"Jim" wrote in message hlink.net... Hey guys. Lets get serious. I need help. I've been trying to wind chill a beer for several days now. So far I haven't been able to reduce the brew's temp. below ambient, no matter how many fans I have blowing on it. I even tried to spritz it with water. Nothing I've tried works. I thought you guys were on to something with this wind chill theory, but alas, it's just a bunch of hot air. Jim Buy yourself a vacuum chamber. I probably could arrange a modest discount. Eisboch |
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#7
posted to rec.boats
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Chilly Diesel Problems
"RCE" wrote in message ... "Jim" wrote in message hlink.net... Hey guys. Lets get serious. I need help. I've been trying to wind chill a beer for several days now. So far I haven't been able to reduce the brew's temp. below ambient, no matter how many fans I have blowing on it. I even tried to spritz it with water. Nothing I've tried works. I thought you guys were on to something with this wind chill theory, but alas, it's just a bunch of hot air. Jim Buy yourself a vacuum chamber. I probably could arrange a modest discount. Eisboch Just what I need. An Electrolux on steroids. ;-) Jim |
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#8
posted to rec.boats
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Chilly Diesel Problems
"Jim" wrote in message link.net... "RCE" wrote in message ... "Jim" wrote in message hlink.net... Hey guys. Lets get serious. I need help. I've been trying to wind chill a beer for several days now. So far I haven't been able to reduce the brew's temp. below ambient, no matter how many fans I have blowing on it. I even tried to spritz it with water. Nothing I've tried works. I thought you guys were on to something with this wind chill theory, but alas, it's just a bunch of hot air. Jim Buy yourself a vacuum chamber. I probably could arrange a modest discount. Eisboch Just what I need. An Electrolux on steroids. ;-) Jim And a 3-phase, 60 kva electrical service in your garage to run it. You could probably tap it off your RV service. Rev. Eisboch |
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#9
posted to rec.boats
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Chilly Diesel Problems
"Jim" wrote in message
link.net... "RCE" wrote in message ... "Jim" wrote in message hlink.net... Hey guys. Lets get serious. I need help. I've been trying to wind chill a beer for several days now. So far I haven't been able to reduce the brew's temp. below ambient, no matter how many fans I have blowing on it. I even tried to spritz it with water. Nothing I've tried works. I thought you guys were on to something with this wind chill theory, but alas, it's just a bunch of hot air. Jim Buy yourself a vacuum chamber. I probably could arrange a modest discount. Eisboch Just what I need. An Electrolux on steroids. ;-) Jim Past girlfriend.... ....never mind. |
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#10
posted to rec.boats
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Chilly Diesel Problems
On Feb 8, 4:16 pm, "Jim" wrote:
Just what I need. An Electrolux on steroids. ;-) You mean a bagpipe? |
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