Temperature effect of phase transition radiation of water

Wu, Wei-Hsuan

Permalink

https://hdl.handle.net/2142/31033 Copy

Description

Title

Temperature effect of phase transition radiation of water

Author(s)

Wu, Wei-Hsuan

Issue Date

2012-05-22T00:23:07Z

Director of Research (if dissertation) or Advisor (if thesis)

Brewster, M. Quinn

Department of Study

Mechanical Sci & Engineering

Discipline

Mechanical Engineering

Degree Granting Institution

University of Illinois at Urbana-Champaign

Degree Name

M.S.

Degree Level

Thesis

Keyword(s)

• Phase transition radiation
• Radiative transfer
• Temperature effect
• Water

Abstract

Phase transition radiation of water revealed in the past provides a possible idea to modify weather predictions nowadays into more accurate ones. With existence, characteristic wavelength, and mechanisms of this phase transition radiation presenting by scientists and engineers, temperature effect of such radiation is studied in this research to obtain more knowledge on this phenomenon. Experiments and computer simulations of transmissivity tests as well as results discussion are performed in this study. A mixture of liquid and vapor water is generated while letting IR radiation at 3.1-4.95 passing through. A detector is used to measure photon counts serving as radiation intensity of two conditions, with mixture, and without mixture. Transmissivity at different volume fraction of liquid water is calculated by manipulating measurements of photon counts. The results of Monte Carlo transmissivity simulation at considered conditions match experimental data, indicating that phase transition must be included whenever phase transitions occur. Temperature effect is discussed by comparing experimental and simulation results at different temperatures. Transmissivity at another temperature is expected to predict well using the conditions shown in this research.  

Graduation Semester

2012-05

Permalink

http://hdl.handle.net/2142/31033

Copyright and License Information

Copyright 2012 Wei-Hsuan Wu

Owning Collections