【Daily Question】Chemical Engineering Principles 272: Hydrogen Station (December 23)
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This post was last edited by “Back to Cambridge” on January 13, 2016, at 16:43. Starting today, the Chemical Engineering Theory section is launching the “Question of the Day” activity, aimed at helping everyone reinforce their fundamental knowledge in chemical engineering. Subsequently, series such as “Principles of Chemical Engineering”, “Mass Transfer and Separation”, “Chemical Thermodynamics”, and “Chemical Process Technology” will also be introduced. We hope for your active participation! For the “Question of the Day” activity, answers can be viewed directly in the replies; however, the thread will be closed after one day ! To encourage everyone’s continued participation this year! Participation earns 3 wealth points, with an additional 4 wealth points for correct answers~~~ Short answer question: What are the reasons for the excessively high total voltage at the hydrogen station tank? Answer: 1) The dirty electrolyte in the tank causes the air inlet and outlet pores of the electrolysis cell to become blocked, increasing the cell’s resistance. 2) The tank temperature is too low. 3) The concentration of the alkaline solution is either too high or too low. 4) The circulation rate of the alkaline solution is too low. 5) The amount added is insufficient
However, the tank voltage at the hydrogen station may become too high in the following five situations: 1) The electrolyte inside the tank becomes dirty, causing the air inlet and outlet holes of the electrolysis cell to get blocked, which increases the resistance of the cell； 2) The tank temperature is kept at a low level ； 3) The alkali solution concentration is too high or too low ； 4) The alkaline solution circulation rate is too low ； 5) Insufficient addition dose ；
Answer: 1) The dirty electrolyte in the tank causes the air inlet and outlet pores of the electrolysis cell to become blocked, increasing the cell’s resistance. 2) The tank temperature is too low. 3) The concentration of the alkaline solution is either too high or too low. 4) The circulation rate of the alkaline solution is too low. 5) The amount added is insufficient
Reasons for the excessively high total voltage at the hydrogen station tank. 1) The dirty electrolyte in the tank causes the air inlet and outlet pores of the electrolysis cell to become blocked, increasing the resistance of the cell. 2) The tank temperature is too low. 3) The concentration of the alkaline solution is either too high or too low. 4) The circulation rate of the alkaline solution is too low
1) The dirty electrolyte in the tank causes the air inlet and outlet holes of the electrolysis cell to become blocked, increasing the resistance of the cell； 2) The tank temperature is kept at a low level ； 3) The alkali solution concentration is too high or too low ； 4) The alkaline solution circulation rate is too low ； 5) Insufficient addition dose.
1) The dirty electrolyte in the tank causes the air inlet and outlet holes of the electrolysis cell to become blocked, increasing the resistance of the cell； 2) The tank temperature is kept at a low level ； 3) The alkali solution concentration is too high or too low ； 4) The alkaline solution circulation rate is too low ； 5) Insufficient addition dose ；
The dirty electrolyte in the groove caused the air inlets and outlets of the electrolysis cell to become blocked. The groove temperature is controlled too low. The alkali solution concentration is too low or too high. The circulation volume of the alkaline solution is too low. The added dose was insufficient.
Factors that may cause excessively high voltage in the hydrogen station cells: 1) Contamination of the electrolyte inside the cells leads to blockage of the air inlet and outlet pores in the electrolysis chambers, increasing the resistance of these chambers； 2) The tank temperature is kept at a low level ； 3) The alkali solution concentration is too high or too low ； 4) The alkaline solution circulation rate is too low ； 5) Insufficient addition dose ；
1) The dirty electrolyte in the tank causes the air inlet and outlet holes of the electrolysis cell to become blocked, increasing the resistance of the cell； 2) The tank temperature is kept at a low level ； 3) The alkali solution concentration is too high or too low ； 4) The alkaline solution circulation rate is too low ； 5) Insufficient addition dose ；
1) The dirty electrolyte in the tank causes the air inlet and outlet holes of the electrolysis cell to become blocked, increasing the resistance of the cell； 2) The tank temperature is kept at a low level ； 3) The alkali solution concentration is too high or too low ； 4) The alkaline solution circulation rate is too low ； 5) Insufficient addition dose