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English Fundamental of Heat Transfer
Heat transfer (or heat) is energy in transit due to a temperature difference. When there is a temperature difference in a medium or between media, heat transfer occurs. There are different type of heat transfer process, Conduction), Convection and Thermal radiation.
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THERMAL CONDUCTIVITY When a temperature gradient exists in a stationary medium, the heat transits from higher temperature to… |
THERMAL CONVECTION Convection heat transfer occurs between a surface and a moving fluid (liquid or gas) when they are at different temperatures… |
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THERMAL RADIATION Thermal radiation is energy emitted by matter that is at a finite temperature via electromagnetic waves… |
THERMAL RESISTANCE Thermal resistance (Rth) is an important concept and index to heat transfer calculation and product development… |
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FAN P-Q CURVE Each fan gets a characteristic curve, also known as P-Q curve, which indicates the correlation between fan air flow rate and static pressure… |
SYSTEM IMPEDANCE CURVE When fluid passes through a system or an object with flow impedance and pressure loss, the correlation between pressure loss and flow rate is obtained as system impedance curve… |