FCSU Edustak experiment guide
Contents
1. 10 Turn on your DC load and start stop watch 11 Every 3 minutes quickly purge the stack 12 When your HYDROSTIK PRO is empty purging does not affect voltage turn off your DC load and note down how long the system ran for 13 Using the results you have collected calculate the hydrogen consumption per minute remember a HYDROSTIK PRO holds 10litres decompressed gas2. 1 Amp steps plotting the change in voltage on your graph Once the maximum output of 0 8 Amp is reached stop increasing the current Using the equation Power Watts Voltage V x Current I calculate the fuel cell s power output at each step Plot the fuel cells output in watts on a new graph and find the peak power output Whole cell with REM O ON DUM BPWHN FP Assemble the EDUSTAK JUNIOR following the instructions in the user manual Connect EDUSTAK JUNIOR output to your renewable energy monitor input Connect renewable energy monitor USB to your computer Connect renewable energy monitor output to your DC load Set DC load to Constant Current Mode CC with the value of Amps set to zero Start data monitoring software on your computer Connect HYDROSTIK PRO to your EDUSTAK JUNIOR and press the purge valve for 1 second Turn on your DC load and slowly increase the value of Amps at as constant a rate as possible Once the maximum output of 0 8 Amp is reached stop increasing the current 10 Using the equation Power Watts Voltage V x Current I calculate the fuel cell s power output at each step 11 Plot the fuel cells output in watts on a new graph and find the peak power output Single cell with REM O ON DU BWN FR Assemble the EDUSTAK JUNIOR following the instructions in the user manual Connect a single cell s output to your renewable energy monitor input Connect renewable energy monitor USB to your comput
3. Horizon OA Experiment Guide EDUSTAK JUNIOR EXPERIMENT GUIDE OVERVIEW The EDUSTAK JUNIOR from Horizon Fuel Cell Technologies is designed as an educational product to teach key stage 3 amp 4 students about fuel cell technology chemistry and architecture but with applications far beyond EDUSTAK JUNIOR FEATURES Easy Assembly clear plastic cells no tooling required 5 cell or 10 cell stack option provides option for 2W or 4W output for EDUSTAK JUNIOR Can be bundled with Horizon Energy Monitor for PC connect and software Includes HYDROSTIK PRO with tubing and adapted pressure regulator HYDROFILL PRO optional can be used for HYDROSTIK PRO charging YOU WILL NEED EDUSTAK JUNIOR kit DC Electronic Load not provided Multimeter not provided TABLE OF CONTENTS Calculate and draw the IV curve and peak Z Examine the difference in output when cells are connected in 3 power of single and multiple cells using a DC series and parallel load Whole cell without REM 2 Without REM 10 Cells 3 Single cell without REM 2 With REM 10 Cells 4 Whole cell with REM 2 Without REM 5 Cells 4 Single cell with REM With REM 5 Cells 5 Examine How Purging Effects The Electrical 3 How is the temperature of the stack affected by running for a 5 Output Of The Fuel Cell sustained period what does this show Without REM 3 Compare voltage of cells at both ends and middle of stack 5 what changes With REM 3 How
4. ect renewable energy monitor USB to your computer Connect renewable energy monitor output to your DC load Set DC load to Constant Current Mode CC with the value of Amps set to 0 7 Start data monitoring software on your computer Connect HYDROSTIK PRO to your EDUSTAK JUNIOR and press the purge valve for 1 second Turn on your DC load Leave cell running for 3 minutes before next purge note any changes in voltage 10 Decrease time between purges by 10 second steps 11 From the data collected calculate the optimum length of time between purges EXAMINE THE EFFECT OF INCREASED AIRFLOW THROUGH THE STACK 1 Assemble the EDUSTAK JUNIOR following the instructions in the user manual 2 Connect EDUSTAK JUNIOR output to a multimeter set to measure voltage or REM start data monitoring software on your computer 3 Connect HYDROSTIK PRO to your EDUSTAK JUNIOR and press the purge valve for 1 second 4 Take a voltage reading from your multimeter or REM and note down the value 5 Connect the fan provided to a small battery or bench power supply and direct airflow through the stack 6 Press the purge valve for 1 second 7 Take a voltage reading from your multimeter or REM and note down the value O CON OW BWHN FP EXAMINE THE DIFFERENCE IN OUTPUT WHEN CELLS ARE CONNECTED IN SERIES AND PARALLEL Without REM 10 Cells 1 Assemble the EDUSTAK JUNIOR following the instructions in the user manual 2 Using 10 jumper cables connect the posit
5. er Connect renewable energy monitor output to your DC load Set DC load to Constant Current Mode CC with the value of Amps set to zero Start data monitoring software on your computer Connect HYDROSTIK PRO to your EDUSTAK JUNIOR and press the purge valve for 1 second Turn on your DC load and slowly increase the value of Amps at as constant a rate as possible Once the maximum output of 0 8 Amp is reached stop increasing the current 10 Using the equation Power Watts Voltage V x Current I calculate the fuel cell s power output at each step 11 Plot the fuel cells output in watts on a new graph and find the peak power output Horizon OA Experiment Guide EXAMINE HOW PURGING EFFECTS THE ELECTRICAL OUTPUT OF THE FUEL CELL Without REM Assemble the EDUSTAK JUNIOR following the instructions in the user manual Connect EDUSTAK JUNIOR output to your DC load Set DC load to Constant Current Mode CC with the value of Amps set to 0 7 Connect HYDROSTIK PRO to your EDUSTAK JUNIOR and press the purge valve for 1 second Turn on your DC load Leave cell running for 3 minutes before next purge note any changes in voltage Decrease time between purges by 10 second steps From the data collected calculate the optimum length of time between purges COND UM BWN With REM Assemble the EDUSTAK JUNIOR following the instructions in the user manual Connect EDUSTAK JUNIOR output to your renewable energy monitor input Conn
6. is the voltage of single cells affected by the increase in 5 temperature associated with running for a sustained period Examine the effect of increased airflow through 3 Compare gas consumption at half and full load 6 the stack Horizon A Experiment Guide CALCULATE AND DRAW THE IV CURVE AND PEAK POWER OF SINGLE AND MULTIPLE CELLS USING A DC LOAD Whole cell without REM O ON OU BWN FP Assemble the EDUSTAK JUNIOR following the instructions in the user manual Connect EDUSTAK JUNIOR output to your DC load Set DC load to Constant Current Mode CC with the value of Amps set to zero Connect HYDROSTIK PRO to your EDUSTAK JUNIOR and press the purge valve for 1 second Plot the voltage on your graph Increase load by 0 1 Amp steps plotting the change in voltage on your graph Once the maximum output of 0 8 Amp is reached stop increasing the current Using the equation Power Watts Voltage V x Current I calculate the fuel cell s power output at each step Plot the fuel cells output in watts on a new graph and find the peak power output Single cell without REM O ON ODUW BWN FP Assemble the EDUSTAK JUNIOR following the instructions in the user manual Connect a single cell s output to your DC load Set DC load to Constant Current Mode CC with the value of Amps set to zero Connect HYDROSTIK PRO to your EDUSTAK JUNIOR and press the purge valve for 1 second Plot the voltage on your graph Increase load by 0
7. ive terminal of each cell to the positive input of your DC load 3 Using another 10 jumper cables connect the negative terminal of each cell to the negative input of your DC load this is parallel 4 Set DC load to Constant Current Mode CC with the value of Amps set to zero 5 Connect HYDROSTIK PRO to your EDUSTAK JUNIOR and press the purge valve for 1 second 6 Turn on your DC load and increase the value of Amps by 0 5 7 Plot the voltage on your graph 8 Increase load by 0 5 Amp steps plotting the change in voltage on your graph Horizon A Experiment Guide 9 Once the maximum output of 8 Amps is reached stop increasing the current turn off your DC load disconnect your HYDROSTIK PRO and remove all the jumper cables 10 Using your jumper cables connect each positive and negative terminal to its neighbor you should have 2 cables leftover 11 Connect the remaining jumper cables from the last cell at either ends positive and negative terminals and connect to your DC load this is series 12 Set DC load to Constant Current Mode CC with the value of Amps set to zero 13 Connect HYDROSTIK PRO to your EDUSTAK JUNIOR and press the purge valve for 1 second 14 Turn on your DC load and increase the value of Amps by 0 1 15 Plot the voltage on your graph 16 Increase load by 0 1 Amp steps plotting the change in voltage on your graph 17 Once the maximum output of 0 8 Amps is reached stop increasing the Current turn off your DC load disconnec
8. jumper cables from the last cell at either ends positive and negative terminals and connect to your DC load this is series 12 Set DC load to Constant Current Mode CC with the value of Amps set to zero 13 Connect HYDROSTIK PRO to your EDUSTAK JUNIOR and press the purge valve for 1 second 14 Turn on your DC load and slowly increase the value of Amps at as constant a rate as possible 15 Once the maximum output of 0 8 Amps is reached stop increasing the Current turn off your DC load disconnect your HYDROSTIK PRO and remove all the jumper cables HOW IS THE TEMPERATURE OF THE STACK AFFECTED BY RUNNING FOR A SUSTAINED PERIOD WHAT DOES THIS SHOW 1 Assemble the EDUSTAK JUNIOR following the instructions in the user manual 2 Connect EDUSTAK JUNIOR output to your DC load 3 Set DC load to Constant Current Mode CC with the value of Amps set to zero 4 Connect HYDROSTIK PRO to your EDUSTAK JUNIOR and press the purge valve for 1 second 5 Turn on your DC load and increase the value of Amps to 0 7 6 Every 30 seconds purge the stack and take a temperature reading 7 Plot the temperature and voltage change on your graph COMPARE VOLTAGE OF CELLS AT BOTH ENDS AND MIDDLE OF STACK WHAT CHANGES 1 Assemble the EDUSTAK JUNIOR following the instructions in the user manual 2 Connect HYDROSTIK PRO to your EDUSTAK JUNIOR and press the purge valve for 1 second 3 Using a multimeter measure the voltage of each cell 4 Plot the voltage on your g
9. of Amps at as constant a rate as possible 15 Once the maximum output of 0 8 Amps is reached stop increasing the Current turn off your DC load disconnect your HYDROSTIK PRO and remove all the jumper cables Without REM 5 Cells 1 Assemble the EDUSTAK JUNIOR following the instructions in the user manual 2 Using 5 jumper cables connect the positive terminal of each cell to the positive input of your DC load 3 Using another 5 jumper cables connect the negative terminal of each cell to the negative input of your DC load this is parallel 4 Set DC load to Constant Current Mode CC with the value of Amps set to zero 5 Connect HYDROSTIK PRO to your EDUSTAK JUNIOR and press the purge valve for 1 second 6 Turn on your DC load and increase the value of Amps by 0 5 7 Plot the voltage on your graph 8 Increase load by 0 5 Amp steps plotting the change in voltage on your graph 9 Once the maximum output of 4 Amps is reached stop increasing the current turn off your DC load disconnect your HYDROSTIK PRO and remove all the jumper cables 10 Using your jumper cables connect each positive and negative terminal to its neighbor you should have 2 cables leftover 11 Connect the remaining jumper cables from the last cell at either ends positive and negative terminals and connect to your DC load this is series 12 Set DC load to Constant Current Mode CC with the value of Amps set to zero 13 Connect HYDROSTIK PRO to your EDUSTAK JUNIOR and press
10. raph HOW IS THE VOLTAGE OF SINGLE CELLS AFFECTED BY THE INCREASE IN TEMPERATURE ASSOCIATED WITH RUNNING FOR A SUSTAINED PERIOD 1 Assemble the EDUSTAK JUNIOR following the instructions in the user manual 2 Connect EDUSTAK JUNIOR output to your DC load 3 Set DC load to Constant Current Mode CC with the value of Amps set to zero 4 Connect HYDROSTIK PRO to your EDUSTAK JUNIOR and press the purge valve for 1 second 5 Turn on your DC load and increase the value of Amps to 0 7 Horizon OA Experiment Guide 6 Every 30 seconds purge the stack and take a reading of the internal temperature and the voltage from each cell 7 Plot the temperature and voltage change on separate graphs 8 From the results taken calculate the optimum running temperature of the fuel cell COMPARE GAS CONSUMPTION AT HALF AND FULL LOAD 1 Assemble the EDUSTAK JUNIOR following the instructions in the user manual 2 Connect EDUSTAK JUNIOR output to your DC load 3 Set DC load to Constant Current Mode CC with the value of Amps set to 0 35 4 Connect a full HYDROSTIK PRO to your EDUSTAK JUNIOR and press the purge valve quickly 5 Turn on your DC load and start stop watch 6 Every 3 minutes quickly purge the stack 7 When your HYDROSTIK PRO is empty purging does not affect voltage turn off your DC load and note down how long the system ran for 8 Next set DC load to 0 7 Amps 9 Connect a full HYDROSTIK PRO to your EDUSTAK JUNIOR and press the purge valve quickly
11. t your HYDROSTIK PRO and remove all the jumper cables With REM 10 Cells 1 Assemble the EDUSTAK JUNIOR following the instructions in the user manual 2 Using 10 jumper cables connect the positive terminal of each cell to the positive input of your renewable energy monitor 3 Using another 10 jumper cables connect the negative terminal of each cell to the negative input of your renewable energy monitor this is parallel 4 Connect renewable energy monitor USB to your computer 5 Connect renewable energy monitor output to your DC load 6 Set DC load to Constant Current Mode CC with the value of Amps set to zero 7 Connect HYDROSTIK PRO to your EDUSTAK JUNIOR and press the purge valve for 1 second 8 Turn on your DC load and slowly increase the value of Amps at as constant a rate as possible 9 Once the maximum output of 8 Amps is reached stop increasing the Current turn off your DC load disconnect your HYDROSTIK PRO and remove all the jumper cables 10 Using your jumper cables connect each positive and negative terminal to its neighbor you should have 2 cables leftover 11 Connect the remaining jumper cables from the last cell at either ends positive and negative terminals and connect to your DC load this is series 12 Set DC load to Constant Current Mode CC with the value of Amps set to zero 13 Connect HYDROSTIK PRO to your EDUSTAK JUNIOR and press the purge valve for 1 second 14 Turn on your DC load and slowly increase the value
12. the purge valve for 1 second 14 Turn on your DC load and increase the value of Amps by 0 1 15 Plot the voltage on your graph 16 Increase load by 0 1 Amp steps plotting the change in voltage on your graph Horizon OA Experiment Guide 17 Once the maximum output of 0 8 Amps is reached stop increasing the Current turn off your DC load disconnect your HYDROSTIK PRO and remove all the jumper cables With REM 5 Cells 1 Assemble the EDUSTAK JUNIOR following the instructions in the user manual 2 Using 5 jumper cables connect the positive terminal of each cell to the positive input of your renewable energy monitor 3 Using another 5 jumper cables connect the negative terminal of each cell to the negative input of your renewable energy monitor this is parallel 4 Connect renewable energy monitor USB to your computer 5 Connect renewable energy monitor output to your DC load 6 Set DC load to Constant Current Mode CC with the value of Amps set to zero 7 Connect HYDROSTIK PRO to your EDUSTAK JUNIOR and press the purge valve for 1 second 8 Turn on your DC load and slowly increase the value of Amps at as constant a rate as possible 9 Once the maximum output of 4 Amps is reached stop increasing the Current turn off your DC load disconnect your HYDROSTIK PRO and remove all the jumper cables 10 Using your jumper cables connect each positive and negative terminal to its neighbor you should have 2 cables leftover 11 Connect the remaining
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