Using a dry bulb thermometer in my Vacuum chamber I observed a large Temp differential, Why?
474430
heat from your chamber wall
1068914
This kind of depends on the other conditions of your experiment.  By Boyle's law, PV=nRT, or pressure times volume = number of moles of gas times a constant times temperature.  Since your pressure goes up, the only way to keep temperature constant is to reduce the volume of your container by half.  Is that the condition of the experiment?  Your gas is in a piston chamber of some sort?  Generally, compressing a gas increases its temperature, so I suppose if you did this, you could measure the temperature beforehand, compress the gas and then wait until the gas cooled back down to the same temperature.\n\nIn any event, since temperature is simply the measure of the average kinetic energy of all the particles in a system, since kinetic energy itself is calclulated by knowing velocity and mass and the mass hasn't changed, at the same temperature, the gas molecules have the same average kinetic energy and therefore the same velocity, and since you don't specifically care WHICH direction they're travelling in, they are at the same speed.
844268
how were you measuring the pH? if it was a pH meter maybe it wasn't calibrated correctly/ recently?? or if it was with litmus paper.... maybe it went bad? I'm not sure if it can... check and see if there could have been an expiration date. i don't think temperature would have that drastic of an effect unless you did the experiment at pH7 and a seriously high (like about 60C) temp and the other ones at room temp or 37C (body temp)... sorry i cant help anymore then that, that's very strange!
738632
What do you mean by the outlet temperature not being uniform. Do you mean not the same over time? Or are there multiple outlets and the temperature from each outlet is not the same?\n\nIf the inlet and outlet channels or headers are not designed carefully to allow for good fluid dynamics then there can certainly be portions of the exchanger that is not getting the same flow as other portions.\n\nWithout more information, I can not see how an energy balance will help solve the problem.
1175058
When the panel cools to the dew point, condensation can cause short circuits between phases. It is necessary to have condensation heaters operating in MCCs and PCCs.\nI always specify 100W condensation heaters operating at half voltage ie. Specify 220V heaters and connect them to 120V. This will ensure long life and a lower surface temperature.\n\nSource: 50 years Electrical engineering experience
278728
If it is for a science project, web sites may or nmay not have the answers....that is all part of a project, to figure it out for yourself, develop your own theories, hypothesis, etc.\n\nI will say it all depends on the temperature....beyond that you're on your own.
1178857
Did it ever have a high temperature of heat? (The normal Temp is around 50 up to 53). If yes, Aopen as i experienced it, always get capacitors defection when it get heated,so try to replace capacitors. take care that Mp may went failure So check it. and dont expose it to more heat.
192080
Is it within a vacuum?\n\nIf not, and if through your above given conditions resulted in air being compressed or what have you then I guess it would.
977894
Electronic sensors can be extremely temperature-dependant.\n\nThe reason is that electronics are semiconductors, and these devices work on the principal of electrons migrating from one area to another in the chip.  The warmer the chip, the easier it is for these electrons to move across the "junction boundaries."  At any given temperature, it takes a certain voltage for the electrons to migrate.  Increase the temperature, and more electrons move across the bopundaries for the same voltage, or conversely a lower voltage moves the same number of electrons across a warmer boundary.  Since all electronic sensors use these voltage and current values to represent whatever it is that they are sensing, changes in the performance of the sensor electronics appear as offsets or other errors in the readings.\n\nIn order to avoid these wrong readings, the temperature-sensitive electronic parts of the instrument are encased in what are often called "ovens" where they are heated to a controlled temperature, and the performance of all the electronics is factory calibrated at this temperature.  When the instrument is field-calibrated just prior to use, it performs a couple of readings of known values and compares these to the values received during factory calibration.  The differences in the factory calibration and field calibration results are then used to adjust the instrument's answers to account for long-term drift which occurs as a result of the aging of various critical components.\n\nWhen you use the instrument in the real world, it must be allowed to "stabilize" (come up to a stable temperature) so that the field self-calibration and calibration-verification proceses will function properly and return the real values for long-term-drift compensation.  If this is not allowed to happen, the values which the instrument THINKS are long-term drift will actually be due to temperature variances, and these flawed long-term-drift corrections will cause innacurate readings.  And since they will be constantly changing until the temperature becomes stable, the errors will change from one reading to another.  You can see this for yourself by performing a calibration and then reading a known "blank" sample immediately after the equipment is turned on, and then again 15 minutes later.  There will be some significant differences between the two readings of the same sample performed by the same instrument.\n\n- - - - - - - -  \n\nThere is also a mechanical stabilization needed for many instruments, particualrly those that rely on an optical path.  This is to pevent flexing of the instument's measurement systems which can cause varying alignment and thus introduce errors.  That is why when a complex and sensitive instrument such as a spectrophotmeter or gas chromatograph is first installed, it must be on a solid concrete slab and is allowed to equalize to the lab's temperature and humidity for a couple of days before the mountings or base are re-adjusted and a site calibration performed to ensure all is set up correctly.  You would be amazed by the errors that can be introduced by having one leg of the base raised or lowered by the thickness of a sheet of paper.
956325
false - temperature is a measure of heat
370248
This is a nice problem.\n\nSwitch on one of the bulbs and wait for it to heat up. Turn in off and switch another one. Go downstairs, and feel the hotness. The hot bulb corresponds to the first switch and the one that is on the second switch. The one that is off is for the switch that has not been touched.
79860
The theory of the pneumatic pyrometer, in which gas temperature is determined from density measurements, is outlined and the design and characteristics of a small instrument are reported. Calibration curves covering a wide temperature range (200 to 1550° C) are given and the use of the instrument is described. :-)
854297
Sounds like there is a short somewhere.  Look for damaged or loose wiring.  Look at battery terminals -- anything touching them that should not be.  Are all the wires adequately insulated?
495189
Yes the low steam temperature improve the condenser vacuum because the density of the steam will decries and the vacuum efficiency will increase.\nBut you will face another thing the at the low pressure turbine (LP) exit, the moisture will increase and the work of the turbine will be little down!!
294886
check out event log for finding the exact problem. it's greatly exprected that the problem is due to overheating.
829997
Perhaps a light wouldnt work under the extreme conditions of a freezer :D
735946
An incandescent bulb usually has a vacuum inside. Sometimes it has argon in it. While it is on, the tungsten in the filament is evaporating from the heat until finally the filament gets so thin that it breaks and the bulb is useless.\n\nA halogen bulb includes a halogen gas in it. While it is on, the tungsten in the filament is evaporating from the very high heat that these bulbs are operating at. However tungsten vapor evaporating from the filament combines with the halogen gas so that the filament is rebuilt when the tungsten lands on it and does not burn through. That lengthens the life of the bulb and the higher temperature also gives a brighter light for the same wattage. More light, more life, less operating cost.