Conference Session

Improving Laboratory Education in Chemical Engineering

Collection

2014 ASEE Annual Conference & Exposition

Authors

Joshua A. Levinson, Lafayette College; Eric L. Maase, University of Massachusetts-Lowell; Glen Thomas Tennyson

Tagged Divisions

Chemical Engineering

G o o d n e s s o f F it : R - S q u a r e d = 0 . 8 3 , S S E = 7 . 6 0 5Figure 9: Typical open loop unsteady-state duplet test for height; first order plus dead timemodel used. Note that the response and model fit data appear in the upper portion of the plot,while the set point appears in the lower portion of the plot. Lo o p -P ro : D e s ig n T o o ls M o d e l: F ir s t O r d e r P lu s D e a d T im e ( F O P D T ) F ile N a m e : T e m p 3 _ L o o p _ P r o . t x t 37.8 P rocess V ariable

Conference Session

Improving Laboratory Education in Chemical Engineering

Collection

2014 ASEE Annual Conference & Exposition

Authors

Mary M. Staehle, Rowan University; Tom Merrill, Rowan University; Stephanie Farrell, Rowan University

Tagged Divisions

Chemical Engineering

efficient heat transfer. The rate of heat transfer is proportional to the exposed surfacearea (q=hAΔT), and skin contains a microcapillary network that substantially increasesthe exposed surface area for enhanced heat transfer. In this hands-on laboratory activity,students create artificial skin by encapsulating cotton candy in an elastomer. The cottoncandy is then dissolved away, leaving a networked path mimicking a microcapillarynetwork in skin.3.2 MaterialsThe following materials are required for this activity: a cotton candy machine (e.g. aNostalgia Electrics Cotton Candy maker, ~$50) modified with a rotational potentiometerplaced in series with the heating and rotational elements to vary the output temperatureand speeds; Jolly RanchersTM

Conference Session

Chemical Engineering Division Poster Session

Collection

2014 ASEE Annual Conference & Exposition

Authors

Laura P. Ford, University of Tulsa

Tagged Divisions

Chemical Engineering

W = power (kW, 1, 300)Heat Exchangers log10 (purchased cost )  4.6  0.8 log10 A  0.3log10 A2 A = heat exchange area (m2, 20, 1000) Estimate the area based on Q  UAT with U = 5000 W/m2·ºC for a feedwater heater U = 500 W/m2·ºC for the condenser U = 25 W/m2·ºC for the high temperature heat exchangerTurbine  log10 (purchased cost )  2.5  1.45 log10 W  0.17 log10 W2 W = power (kW, 100, 4000)Utility Costs Electricity $0.06/kWh Cooling Water $0.354/GJEquipment Cost FactorsTotal Installed Cost = Purchased

Conference Session

Improving Laboratory Education in Chemical Engineering

Collection

2014 ASEE Annual Conference & Exposition

Authors

Joshua A Enszer, University of Maryland, Baltimore County

Tagged Divisions

Chemical Engineering

degree Celsius. You will have one laboratoryperiod to complete all experiments necessary. The following materials will be available for use:an insulated container water at near 100°C (a hot plate)beakers a brass objecta thermometer a steel objecta balance threadwater at 0°C (unlimited ice) tongsNo other materials are allowed.The first law of thermodynamics will be helpful to you as you think about designing yourexperiments. Remember (from material and energy balances) that for a closed system  U  E K  E P  Q  Wwhere

Conference Session

Virtual and Online Learning Tools in Chemical Engineering Education

Collection

2014 ASEE Annual Conference & Exposition

Authors

Alec Steven Bowen, Oregon State University; Daniel Robert Reid, Oregon State University; Milo Koretsky, Oregon State University

Tagged Divisions

Chemical Engineering