The issue of indirect steam heating of solid materials in high-altitude areas
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This post was last edited by whweimy on 2024-1-19 at 18:30. Hello, experts. Recently, there is a atmospheric-pressure device that requires indirect steam from a tower to heat solid materials, and it is located in a highland area at an altitude of 2,000 meters. Previously, the same equipment in plain areas used 10 bar saturated steam (at about 184 degrees), with a flow rate of around 800 kg/h. The solid material reaches about 105 degrees after heating. For this equipment in high-altitude areas, the steam pressure is increased to 10.5 bar (about 184 degrees), while the flow rate remains at 800 kg/h. Can the solid material also reach 105 degrees after heating? I earnestly request your advice. Thank you!
In high-altitude areas, the atmospheric pressure is lower than in low-lying areas, which affects the heating effect of steam. At the same pressure, the temperature of saturated steam decreases as altitude increases. Therefore, even if the steam pressure is increased from 10 bar to 10.5 bar in high-altitude areas, the temperature of the steam may still not reach that of the plain areas at 10 bar. To achieve the same heating effect, it may be necessary to increase the steam pressure or the flow rate of steam, in order to compensate for the temperature drop caused by the low pressure at high altitudes. The specific amount of pressure or flow increase required must be calculated based on the steam’s temperature-pressure relationship and the thermal properties of the material. It is possible to consider consulting experts on relevant steam heating systems or using thermodynamic software for specific calculations. .