Please advise on the conversion of feed density at different temperatures.
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Knowing the density of the raw material oil (before heat exchange) according to the laboratory analysis (20°), how to convert it to the actual density after the raw material preheating temperature (190°)? Because of the high temperature, some simple formulas for oil temperature conversion are no longer applicable, and no relevant information has been found. Please help!
It is recommended to try the general line chart of liquid specific gravity. You need to know the comparison conditions of 20℃ to use this chart.
This thing is generally calculated using empirical formulas. The higher the temperature, the smaller the density! Generally, residual oil or heavier oil is based on the temperature rise minus 0.0002, and the calculation formula is that the density at high temperature is equal to (1-temperature rise times 0.0002)
Rf=Rb-α×(t-20) α=(Rb set-Rf set)/(t set-20) Rf and Rb are the specific gravity (t/m3) under working conditions and 20℃ respectively.
Whether it is used for design suggestions or testing, the data obtained in this way is accurate, and the testing workshop in the factory is generally very convenient.