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Electrolyzer test 28.06.2023

For the purpose of measuring the DC intensity of the cells system, an intensity sensor (Ammeter) with a capacity of 200 A has been installed.

 

Goal:

This test aims to collect the DC intensity data of the system cells during operation, in order to know the amount of hydrogen and oxygen gas generated.

 

Expected result:

Obtaining the required DC intensity data to balance it with the amount of Hydrogen and Oxygen gas generated.

If this is achieved, we can estimate the amount of hydrogen produced and thus select a suitable flowmeter for the hydrogen gas emitted

 

Test specifications:

00010: A simple test of an Electrolysis system -Case without add water-

Steps Steps description Excepted result Result
Precondition System is Off     ✔️
The cells are partially filled with NaOH solution   ✔️
Run pump to fill the cells with the NaOH solution Open the valves (V3) & (V4) from the GUI  (V3) & (V4) are opened and enable to let the electrolyte solution pass ✔️
Click "Start" on the Electrolyte bottom from the GUI The cells enable to filled with electrolyte solution ✔️
Wait 5 seconds, the pump (P1) run automatically The pump (P1) is turned On ✔️
Turn Off the pump when the cells are filled with NaOH solution When (L3) & (L4) go from "Low" to "High", turn Off the pump from the GUI The cells filled with electrolyte solution ✔️
Pump (P1) turned Off ✔️
Close the valves (V3) & (V4)  Turn Off the valves (V3) & (V4) from the GUI The valves (V3) & (V4) are closed ✔️
Wash the system with Nitrogen gas  Open the valves (V1) & (V2) from the GUI  The valves (V1) & (V2) are open and enable to let the nitrogen gas pass ✔️
Close the blue ball valve of the water tank manually The blue ball valve is closed ✔️
Open the bottle of Nitrogen gas 5 minutes @ 4 bars The Nitrogen gas pass through the system ✔️
The air bubbles appear (generate) in the Gas AutoSafety  ✔️
Turn Off the Nitrogen bottle by its gate valve manually The Nitrogen bottle is closed ✔️
The air bubbles disappear (doesn't generate) in the Gas AutoSafety ✔️
Open the blue ball valve of water tank manually The blue ball valve is opened ✔️
Close the valves (V1) & (V2) from the GUI The valves (V1) & (V2) are closed ✔️
Turn ON the burner to burn the gas Click "Start" on Fuel Burner from the GUI The transformer is turned On  ✔️
The burner is turned On  ✔️
Redness of the metal strip of the burner ✔️
Connect the Power Supply on the system Ensure that the pump (P1) is turned Off Pump (P1) is closed ✔️
Click "Start" on the Power Supply bottom from the GUI The Power Supply is On  ✔️
The system is generating Hydrogen and Oxygen ✔️
5 minutes after turning On the burner, a flame appears ✔️
Disconnect the Power Supply on the system Click "Stop" on Power Supply bottom from the GUI  The electricity is turned Off from the system  ✔️
The generation of Hydrogen and Oxygen are stopped ✔️
Turn Off the fuel burner  Click "Stop" on the Fuel Burner bottom from the GUI Burner (Transformer) is Off ✔️
Click "Stop" on the valves (V1) & (V2) from the GUI The valves (V1) & (V2) are closed ✔️
Flame disappears (is Off) ✔️
Re-wash the system with Nitrogen gas  Open the valves (V1) & (V2) from the GUI  The valves (V1) & (V2) are open and enable to let the nitrogen gas pass ✔️
Close the blue ball valve of the water tank manually The blue ball valve is closed ✔️
Open the bottle of Nitrogen gas 5 minutes @ 4 bars The Nitrogen gas pass through the system ✔️
The air bubbles appear (generate) in the Gas AutoSafety  ✔️
Turn Off the Nitrogen bottle by its gate valve manually The Nitrogen bottle is closed ✔️
The air bubbles disappear (doesn't generate) in the Gas AutoSafety ✔️
Open the blue ball valve of water tank manually The blue ball valve is opened ✔️
Close the valves (V1) & (V2) from the GUI The valves (V1) & (V2) are closed ✔️
Post condition Turn Off the system  System is Off ✔️
The cells are partially filled with NaOH solution   ✔️
The cells are filled totally with NaOH solution   ❌

 

Data collected during test:

       

Result view:

 

Conclusion:

Test passed successfully. The next step is to install the produced hydrogen meter.