thermal transmittance or thermal conductance
The time rate of heat flow per unit area between fluids on each side of a structure, calculated in accordance with the difference in unit temperature between each fluid.
U-value is used in thermodynamics as a value of heat flow.
The numerical value of u-value in Chaldean Numerology is: 9
The numerical value of u-value in Pythagorean Numerology is: 1
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