P14054 SMOKING MACHINE Chris Boise Eric Cawley Gideon

P-14054 SMOKING MACHINE Chris Boise Eric Cawley Gideon Oladunjoye Jose Pardes Matt Cross Megan Guarnieri Cleary

OVERVIEW • • Problem Statement Customer/Engineering Requirements System Overview Final Design Problem Tracking Current State Test Results Future Tasks

PROBLEM STATEMENT • In order to simultaneously collect emissions and transport undisturbed casts for analysis, current hollow cast models will be combined with the existing side stream smoking machine. Device will operate using acquired data from the w. PSMD. Unit needs to be self-contained, portable, fit on a workbench, and user friendly. The unit must also be production ready for identical machines in other labs. During operation smoke needs to be ventilated responsibly and the unit must be interfaced with Lab. VIEW.

CUSTOMER REQUIREMENTS

ENGINEERING REQUIREMENTS

SYSTEM OVERVIEW

FINAL DESIGN

FINAL DESIGN • • • Electronic cigarettes 2 syringe pumps Sliding access door No filter between chimney and impinger No pressure or temperature sensors Limit switches Termination and reset program Overhead exhaust vent H-bridge with protection Larger DAQ interface

PROBLEM TRACKING

CURRENT STATE • • Proven results for research cigarettes Electronic cigarettes capable Lung cast produced and all parts delivered Internal lung cast pressure program Labeling all required parts and wires Program reset Customer documentation

TEST RESULTS • • 36 Total Research Trials (1 R 5 F) Eliminated non-7 puff trials and anything with percent error > +/-70% • • • Resulted in 15 samples TPM avg. = 2. 145 mg % Error avg. = 3. 13%

TEST RESULTS

FUTURE TASKS • • • Fix/reduce actuator creep through Lab. VIEW or limit switches Automated puffing profile from WPSM device Calibrated/verify puff using flow meter Automated parallel correction to puffing profile Lung cast deposition incorporation Puff selection drop-down menu

SUMMARY • • Problem Statement Customer/Engineering Requirements System Overview Final Design Problem Tracking Current State Test Results Future Tasks

QUESTIONS?