Award Abstract # 0238841
CAREER: Microscale Two-Phase Zeotropic Flow in Energy Systems

NSF Org: CBET
Division of Chemical, Bioengineering, Environmental, and Transport Systems
Recipient: UNIVERSITY OF PITTSBURGH - OF THE COMMONWEALTH SYSTEM OF HIGHER EDUCATION
Initial Amendment Date: February 12, 2003
Latest Amendment Date: August 11, 2005
Award Number: 0238841
Award Instrument: Standard Grant
Program Manager: Theodore L. Bergman
CBET
 Division of Chemical, Bioengineering, Environmental, and Transport Systems
ENG
 Directorate for Engineering
Start Date: July 1, 2003
End Date: June 30, 2009 (Estimated)
Total Intended Award Amount: $400,107.00
Total Awarded Amount to Date: $405,107.00
Funds Obligated to Date: FY 2003 = $400,107.00
FY 2005 = $5,000.00
History of Investigator:
  • Laura Schaefer (Principal Investigator)
    las14@rice.edu
Recipient Sponsored Research Office: University of Pittsburgh
4200 FIFTH AVENUE
PITTSBURGH
PA  US  15260-0001
(412)624-7400
Sponsor Congressional District: 12
Primary Place of Performance: University of Pittsburgh
4200 FIFTH AVENUE
PITTSBURGH
PA  US  15260-0001
Primary Place of Performance
Congressional District:
12
Unique Entity Identifier (UEI): MKAGLD59JRL1
Parent UEI:
NSF Program(s): TTP-Thermal Transport Process
Primary Program Source: app-0103 
app-0105 
Program Reference Code(s): 0000, 1045, 9251, OTHR
Program Element Code(s): 140600
Award Agency Code: 4900
Fund Agency Code: 4900
Assistance Listing Number(s): 47.041

ABSTRACT


Abstract

Proposal Number: CTS-0238841
Principal Investigator: Laura Schaefer
Affiliation: University of Pittsburgh
Proposal Title: CAREER: Microscale two-phase zeotropic flow in energy systemss

The PI will investigate the coupled heat transfer and fluid flow behavior of two-phase zeotropic mixtures in micro- and minichannels. Zeotropic mixtures are distinct in that the concentrations of their liquid and vapor phases are continually changing in the two-phase region. The temperature glide between the concentration profiles can cause both component accumulation at the vapor-liquid interface and drastically nonlinear temperature versus enthalpy contours. On the microscale, these behaviors can be exacerbated by the increased effect of intermolecular interactions. The thermodynamic, heat transfer, and fluid flow properties of these mixtures will be studied through theoretical modeling, numerical simulation, and experimental observation. The results of this project will provide the tools needed to create effective miniature vapor compression and absorption cycles, pumping mechanisms, and extraction devices. This research can also be used to increase the efficiency of heat exchangers that utilize micromachined components, which may have a large impact on the costs and emissions generated by energy consumption. These types of energy pplications are appealing to students who are concerned about the environment and to students who are interested in current technology. High school, undergraduate, and graduate students will be introduced to energy systems through a four-tier integrated approach. The proposal has been funded by the Thermal Transport and Thermal Processing Program of the Chemical and Transport Systems Division.

PUBLICATIONS PRODUCED AS A RESULT OF THIS RESEARCH

Note:  When clicking on a Digital Object Identifier (DOI) number, you will be taken to an external site maintained by the publisher. Some full text articles may not yet be available without a charge during the embargo (administrative interval).

Some links on this page may take you to non-federal websites. Their policies may differ from this site.

(Showing: 1 - 10 of 11)
Bao, J., Yuan, P., and Schaefer, L. "A Mass Conserving Boundary Condition for the Lattice Boltzmann Method" Journal of Computational Physics , v.227 , 2008 , p.8472
Li, P.-W., Schaefer, L., and Chyu, M. K. "A Numerical Model Coupling the Heat and Gas Species' Multiple Transport Processes in a Tubular SOFC" ASME Journal of Heat Transfer , v.126 , 2004 , p.219
Li, P.-W., Schaefer, L., and Chyu, M. K., "Three-Dimensional Model for the Conjugate Heat and Gas Species Transport in a Planar Type Solid Oxide Fuel Cell" International Journal of Transport Phenomena , v.9 , 2007 , p.1
Lu, Y., and Schaefer, L. "Numerical Study of a Flat-Tube High Power Density Solid Oxide Fuel Cell: Part II. Cell Performance and Stack Optimization" Journal of Power Sources , v.153 , 2006 , p.68
Lu, Y., Schaefer, L., and Li, P.-W. "Numerical Simulation of Heat Transfer and Fluid Flow of a Flat-Tube High Power Density Solid Oxide Fuel Cell" Second International Conference on Fuel Cell Science, Engineering and Technology , v.CD , 2004 , p.CD
Lu, Y., Schaefer, L., and Li, P.-W. "Numerical Simulation of Heat Transfer and Fluid Flow of a Flat-Tube Type High Power Density Solid Oxide Fuel Cell" ASME Journal of Fuel Cell Science and Technology , v.2 , 2005 , p.65
Lu, Y., Schaefer, L., and Li, P.-W. "Numerical Study of a Flat-Tube High Power Density Solid Oxide Fuel Cell: Part I. Heat/Mass Transfer and Fluid Flow" Journal of Power Sources , v.140 , 2005 , p.331
Yuan, P., and Schaefer, L. "A thermal lattice Boltzmann two-phase flow model and its application to heat transfer problems - Part 1. Theoretical foundation" ASME Journal of Fluids Engineering , v.128 , 2006 , p.142
Yuan, P., and Schaefer, L. "A thermal lattice Boltzmann two-phase flow model and its application to heat transfer problems - Part 2" ASME Journal of Fluids Engineering , v.128 , 2006 , p.151
Yuan, P., and Schaefer, L. "Lattice Boltzmann Simulation of Two-phase Flow and Heat Transfer in a Rectangular Channel" Fluids Engineering Division, 2004 International Mechanical Engineering Congress and Exposition , 2004 , p.59437
Yuan, P; Schaefer, L "Equations of state in a lattice Boltzmann model" PHYSICS OF FLUIDS , v.18 , 2006 View record at Web of Science 10.1063/1.218707
(Showing: 1 - 10 of 11)

Please report errors in award information by writing to: awardsearch@nsf.gov.

Print this page

Back to Top of page