Re discussion on the isolation of high-temperature media
Thread Content
At a high temperature of 550 degrees in molten salt, it is quite difficult to measure either the flow rate or the pressure. Could you advise on what method would be suitable?
Isolate using a liquid medium with a high boiling point
It’s not difficult – lower the temperature measurement. For example, if all the pressure difference points are directed downward, cooling will occur naturally. Some way to find a way of installing the medium at low temperatures must exist. What is the melting point?
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The flow rate of the pump is fixed, while the flow rate of the molten salt pump depends on the heat transfer amount; the greater the heat transfer amount, the higher the flow rate of the molten salt pump. Furthermore, the flow rate of the molten salt pump also needs to be determined based on the heat transfer coefficient of the heat exchange equipment and the process requirements of the chemical system. The above is only a qualitative introduction; for different process systems, the flow rate required for molten salt pumps varies as well. Given the complexity of heat exchange calculations, adjustments are also necessary based on experience. If possible, it is advisable to consult the relevant technical staff at Jinan Huawei Pump Industry – I hope this will be helpful.
Generally, the molten salt used for heat storage in concentrated solar power generation is solid at temperatures below 290°C; therefore, it’s not possible to reduce its temperature by applying pressure. As far as I know, Bright Source uses an electric heating system to keep the temperature of the molten salt above its melting point.
Electric heating is mandatory! The external control should heat when below the set value, and stop heating when above it. That’s what I think.