Laboratory Equipment #3680889

The most commonly used law of Thermal Radiation is the Stefan-Boltzmann low which states that the thermal radiation heat flu emitted from a block surface (one which absorbs all the incident radiation falling on it) is proportional to the fourth power of the absolute temperature of the surface and is given by the following equation.(qA) Heat flux in WMsq. = T = eb4 Where, T is the surface temp. which emits thermal radiation in KAnd Stefan Boltzmann constant, =5.67 x 10-8 WM sq.K4eb = Emissivity power of black surface. The Stefan Boltzmann low can be derivedby integrating planks law,

An orifice is an opening in the wall of a tank, while a mouthpiece is a short pipe fitted in the same opening. A mouthpiece will be running flu if its length does not exceed two to three times the diameter. Both orifice and mouthpiece are used for discharge measurement. The jet approaching the orifice continues to converge beyond the orifice till the streamlines become parallel. This section of the jet is then a section of minimum area and is known as vena contracta

The two hinged arch is a statically indeterminate structure of the first degree. The horizontal thrust is the redundant reaction and is obtained y the use of strain energy methods.