Originally Posted by dsskid
No inuendo...just posting my observation which was contrary to a previous posters observation.
Don't really understand why you had a problem with my post.
Because the "OMG plasmas are too hot meme" is tired. And whether you intended it or not, you put fuel on that fire.
Originally Posted by Iron Condor
The temperature of the store does matter. The ambient temp of the air will determine how well it can cool the TV. If the TV is mounted on a wall near other large TVs the air in that area will be much warmer than the rest of the store and thus the TVs themselves will be warmer. Yes the TV will generate and the same amount of heat no matter where it is, but the environment definitely is a factor in how much heat is retained in and on the TV.
See, this is interesting. You're both right and wrong.
If the store is warm or, say, you live in Florida and it's summertime and your A/C is set fairly low, the contribution of a warm appliance or lamp or guy who just got back from a 10-mile run to a very localized space around it or him is going to be affected by the ambient temperature of the room.
We can all easily see this phenomenon if we want to on a cold day where we're cooking something in the oven. After the food is done, leave the oven opened (of course, don't do this if you have kids or pets or people who can't avoid the immediate area easily). The room will, in fact, warm up. That's because the oven is generating heat and the heat has to be dissipate somewhere.
But the question of whether or not the oven gets warm is completely independent of the temperature inside your house
. The two are not related, which is why I used the light-bulb-at-the-south-pole example. Some of you might be able to try a poor man's version of that if you leave your refrigerator open long enough and touch the light inside there. My current fridge has LED lighting and is cool regardless and, again, I'm not advocating letting your food spoil, but on our old fridge, even after about 5 minutes, if you brushed the bulb with you hand, it would get a nasty, low-grade burn.
The bulb, you see, was hot. The LEDs are not. And the ambient temperature is irrelevant to this equation. Most airplanes spend a great deal of their time flying in temps of minus 40-minus 60 degree temps. Trust me, the engines are hot enough (even on the sides), to melt your skin off in a second or two.
So the question here is whether or not current plasmas get hot and the answer is -- at least as concerns Panasonic -- no, they don't. Do they get warm? Yes, they do. Could you put your hand atop the exhaust and hold it there for 10 minutes? I'm guessing that would send you to the hospital, even if you'd likely still have a hand -- unlike with the jet-engine example. (I'm guessing, please don't try this yourself unless you're sure the exhaust is mild enough).
The temperature of the TV is 100% a function of the laws of thermodynamics and energy. The TV -- in normal use -- is going to run around 250w. That's simply nowhere near as good as a currrent LCD. And it's nowhere near as bad as a plasma from a few years ago. Since the light output is comparable to (actually better) said plasma, the heat output has to be lower
. There isn't any other possible conclusion to draw, unless the TV is defying fundamental laws of the universe.
(It's a bit more complex because the luminous efficiency has increased but since the electric consumption is so much lower and the luminous efficiency has, in fact, not increased by all that much comparatively, the remainder of the electricity -- the portion that gets converted to heat -- is actually dramatically
smaller. A very rough guesstimate is that on my plasma, something around 250 watts is being converted to heat while on a newer 55" ST50 -- which is 20% larger -- that number is down around 100-125w. Since a 100w incandescent is absolutely horrendous at making light using electricity (literally close to 98% of its energy is converted to heat), it's quite probable that a 55" VT50 is putting out heat comparable to a single 100w incandescent. It's all-but certain that the heat output is not meaningfully larger than a 150w incandescent.)