why gray colour is choosing to all instrument panel.why not choosing other colour?
Answer Posted / carl_ellis
The color Gray is used because it is a neutral color.
One consideration in the selection of color is heat dissipation.
IEEE published a paper by Ralph H. Lee at E. I. Du Pont (1975), The Effect of Color on Temperature of Electrical Enclosures Subject to Solar Radiation by Effect of Enclosure Color and Finish, which is summarized by the extract:
"Electrical enclosures have historically been painted with dark colors ostensibly to enhance the radiation of internally generated heat.
Outdoors, these dark colors are great absorbers of solar radiation, from which the enclosure incurs an appreciable temperature rise. The lighter colors absorb less solar radiation, incurring smaller solar temperature rise. However, it is demonstrated that these lighter colors radiate the lower temperatures of the equipment as well as the darker colors.
Hence, equipment painted with the lighter colors will operate at a lower temperature and be subject to less severe derating from the effects of solar radiation."
Many vendors offer custom painted enclosures.
Carl Ellis
Measure First
| Is This Answer Correct ? | 4 Yes | 1 No |
Post New Answer View All Answers
How vortex sensor used for steam flow measurment can be checked on line i.e without taking out from process line.
Punj lloyd is coming in our Jadavpur Universtiy campus for campus placement. Please send me some hints about the writtend exam. My email id is subratafriends@gmail.com
while i check zero check for dp flow transmitter some fluctuating came (0 to 458 kg/h) what is the reason?
How can measure flow in oil line?which type of transmitter is generally used?
Meaning of the following a. IOP- Manimum; b. IOP- Maximu,;
typical loop drawing of a simple feedback control comprising of one transmitter and one control
the 3 most common transmitter protocol being in refinery or qatar gas and aramco.
how many pulses are required by a ac induction servo motor of 4 poles with 50 Hz frequency to rotate by 1 degree?
how to calibrate and troubleshooting of leveltroll?
What is first echo & echo window in radar type level transmitter?
I have a Control VAlve having size of 2 ".Only the known parameter is Pressure drop . Its 2 Kg. Then How to calculate control valve sizing means Cv.
the output of the common trasmitter protocol in qatar gas are the following
kindly sent some demo question and answer
-/5A. What is the meaning and limitations of this in energy meter constant. It is a 3 phase LT Energy Meter. If this Energy Meter is connected through a CT of ratio 200/5 Amps, then what is the multiplying constant and how its will be calculated.
Definition of reverse and acting controllers: