Regarding steam tracing for alkali storage tanks
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There is an existing 30m3 alkali storage tank, which is to be heated with steam. The steam used has a temperature of 147 degrees Celsius and a pressure of 0.45 MPa, while the crystallization temperature of the alkaline solution is 1 degree Celsius. I would like to ask how much hot steam is needed to prevent the alkaline solution from crystallizing, and how should this amount of steam be calculated?
Rough calculation approach: First, determine the operating temperature of the storage tank; then, using the thermal conductivity of the selected insulation material and its thickness, calculate the heat loss, and subsequently determine the steam consumption. This calculation takes into account only the thermal resistance of the insulation layer, ignoring other thermal resistances; as a result, the amount of steam calculated is necessarily higher than the actual amount used, but the difference is not significant.
Assuming the required heat is 1.0x10^6 KJ, how is the amount of steam needed calculated?
Are you guys crazy? The crystallization temperature of the alkaline solution is 1°C; do you use steam for heating? No hot water for heating?
Our company uses 95-degree hot water for heating; the storage tank has a capacity of 300 cubic meters, and external coil heating is employed
Using hot water is inconvenient, and it is used intermittently. I’ve seen examples of systems using steam for heating online, but I’m not sure how to determine the amount of steam required