Modular Hardware Interface for Nanoporous Membrane Filtration Experiments

Senior Design Update: 3/19/2014Jacob Bumpus, BME/EE 2014Casey Fitzgerald, BME 2014Michael Schultis, BME/EE 2014Fail SafesSet point = 0 Overrides the PID controllerRecord Max/Min PressureAlert user of potential errorsMass Balance Software ZeroMonitor total massShut down pressure and flow, no flooding balanceMaximum PressureIf exceeded, set pressure to zero

Error Handling Demo gif

Hardware ProgressSyringe pumpRemoval of Large Power supplyImplemented much smaller, more portable solutionUpdated circuitry componentsAllows for greater precision for PID and feedback controlSince receiving connectors, weve begun container designs/layouts

PulsatilityWorking on updating pump control panel totake a series of flow rates and time intervalsFile input or manual inputConvert flow RPM automatically based on tubing selection

PulsatilityNeed to determine approach for moving forward:Main limitation currently is pulsation frequencyIdeasMatching Reynolds number (alter viscosity) to accommodate slownessAdd additional hardware (digitally controlled valve, other) to improve pulse frequency (temporal offset relative to pump)Observe pressure wave with additional pump headsLooking ForwardTry to get laptop workingAllow us to run a true hydraulic permeability setupWorking on pulsatile flowOrdering a container boxTo allow for portability of hardware interfaceCreating graphical user interface hardware select menuSyringe pump control?Battery powered surge protector?Allow for continued usage when power goes out momentarilyGantt Chart