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Development of electrolyte solution concentration measurement system and application in solar pond

Author

Listed:
  • Li, Xiang Yi
  • Baba, Hiromu
  • Kanayama, Kimio

Abstract

In order to measure the concentration of an electrolyte solution, especially the salt gradient in a solar pond in which the salinity is changed continually, the C.E.T. sensor and its special circuit were developed on the basis of the electroconductivity-temperature measurement method, by which the salt gradient could be measured quickly at any experimental site. Based on a thorough analysis of the conventional sensor with needle electrodes, the C.E.T. sensor effectively overcame the fault (wall-approach-effect) of the conventional sensor with a special structure formed by several cylindrical electrodes and a shield plate on the top. Here, the circuit was designed to obtain high S/N signals and a relation function with a high multiple correlation coefficient of 0.998 was obtained to adapt the wide ranges of concentration 0∼20 wt% and temperature 10∼80°C on measuring electrolyte-solution concentration. The applicability of the C.E.T. sensor was verified and a new design and measurement method was described in this research.

Suggested Citation

  • Li, Xiang Yi & Baba, Hiromu & Kanayama, Kimio, 2001. "Development of electrolyte solution concentration measurement system and application in solar pond," Renewable Energy, Elsevier, vol. 23(2), pages 195-206.
    • Handle: RePEc:eee:renene:v:23:y:2001:i:2:p:195-206
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