What is the temperature after LNG passes through the vaporizer and then a 40°C water bath?
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When unloading LNG from a tank truck, the liquid first passes through a vaporizer and then through a water bath at 40 degrees Celsius, with a flow rate of 180 m3/h. Questions: 1. What is the temperature of the gas after vaporization and after passing through the water bath? 2. How can the impact of low ambient temperatures on the gasification rate be quantified? Is there a relationship between ambient temperature and the gasification rate? Thank you
Question 1: Without a heat exchange area, LNG flow rate, pressure, and other parameters, it is impossible to perform the calculation. Question 2: The main factor affecting the gasification rate is water temperature. The effect of ambient temperature is minimal
Water bath is required for unloading. Reasons: 1, the volume of material to be unloaded is large; 2, the temperature is low, and a vaporizer alone is not sufficient. The designed outlet temperature of a typical gasifier is 5-10 degrees lower than the atmospheric temperature; after passing through a water bath, a temperature of 5-10 degrees is sufficient to prevent the pipes from freezing.
Why use a water bath for unloading? It would be better to increase the size of the carburetor or use two carburetors in turn – after all, the water bath consumes a lot of electricity