Abstract: In order to study of the heat transfer from condensing zinc vapor to interior wall of the condenser of lead column, based on analysis and reasoning of the mechanism of heat transfer in the course of condensation of zinc vapor, a mathematical model of heat transfer on the condensation of zinc vapor in condenser of lead column is proposed. The model indicates that the quantity of heat transfer of condensation of zinc vapor has a very close relation with the temperature of zinc vapor condensation and interior wall of condenser, and the reducing of interior wall temperature in condenser can enhance the quantity of heat transfer of zinc vapor condensation, the optimum value range of interior wall temperature in condenser is about 800℃. The factual case of heat transfer of zinc vapor condensation in condenser of lead column in Shaoguan Smelter indicates that the mathematical model can preferably reflect heat transfer from condensation of zinc vapor in condenser to the interior wall of condenser. Some significant results toward design and operation of condenser of a lead column are attained from the mathematical model.
Mathematical model of heat transfer and its application on zinc vapor condensation in condenser of lead column
Abstract:
In order to study of the heat transfer from condensing zinc vapor to interior wall of the condenser of lead column, based on analysis and reasoning of the mechanism of heat transfer in the course of condensation of zinc vapor, a mathematical model of heat transfer on the condensation of zinc vapor in condenser of lead column is proposed. The model indicates that the quantity of heat transfer of condensation of zinc vapor has a very close relation with the temperature of zinc vapor condensation and interior wall of condenser, and the reducing of interior wall temperature in condenser can enhance the quantity of heat transfer of zinc vapor condensation, the optimum value range of interior wall temperature in condenser is about 800 ℃. The factual case of heat transfer of zinc vapor condensation in condenser of lead column in Shaoguan Smelter indicates that the mathematical model can preferably reflect heat transfer from condensation of zinc vapor in condenser to the interior wall of condenser. Some significant results toward design and operation of condenser of a lead column are attained from the mathematical model.
Fig.1 Sketch of heat transfer of condensation of zinc vapor in condenser of lead columntn—Temperature of interior wall of condenser;tg—Temperature of liquid film on phase interface;tV—Temperature of zinc vapor in condenser; 1—Suddenly changing layer of temperature;2—Condensing liquid membrane