Overview of Status of Analysis, Design, Fabrication, Tests, etc.
Built the prototype of the water block and the circuit for one temperature stage: it had problem with the waterproof
Controlled the temperature with Bang bang control and PID control. The minimum temperature Peltier can reach is 10 due to the temperature of normal water. We set the temperature to 15 and the system oscillated from 12 to 18.
Came up a new design for the water block
Researched for the circuit for PID control
Accomplishments from Previous Week
Built the prototype of water block: it had problem with the waterproof
Got the purchased temperature controller and successfully decreased the temperature to 0 Celsius
Goals for Next Week (list names after each item). Use specific and measurable objectives.
Finish the Solidworks of the new water block (Khang)
Started to manufacture the water block (Josh)
Researched the circuit with MOSFET which can control the current through Peltier (Jacob)
Build the circuit with multiple temperature stages and try to control it (Zinan)
Start the research for PCB(Jacob)
Start the research on User Interface (Zinan)
Sponsor Comments from Last Meeting and Actions Taken to Address these Comments (indicate date of comments and if via email or in person)
N/A( will meet sponsor this Thursday)
Instructor Comments from Last Meeting and Actions Taken to Address these Comments (indicate date of comments and if via email or in person)
There is a flexible Peltier device and we can reach the professor to see if such product is applicable for our design
Comments from Other Students in the Class (indicate date of comments and if via email or in person)
N/A
Risks and Areas of Concern
How to find the parameters of PID controller? Do we need to start with the transfer function and do some simulation?
How tp reduce the overshoot of our system? Right now, when the set temperature is 15 degree, the Peltier will reach 12 and back to 15 for a long time. Turn off the cooling system can help to decrease the time. Do we need to control the cooling system too?
Resources or Information Required but not Available
N/A
Schedule
Describe upcoming milestone
Update Gantt chart.
Budget (list amount spent and amount remaining)
$272.97 spent
$2727.03 remaining
Progress on Report and Webpage