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Title: An efficient correlation for heat and mass transfer effectiveness in tumble-type clothes dryer drums

Abstract

A heat and mass transfer effectiveness definition relevant to clothes dryers is developed in this work. A correlation is presented for determining the effectiveness of heat and mass transfer in a horizontal-axis, tumble-type clothes dryer drum with axial airflow. The correlation is a function of four measurable quantities: air mass flow rate, cloth mass, air mass in the drum, and the fall time experienced by a cloth falling the full height (i.e. diameter) of the drum. The Buckingham Pi Theorem is applied to the problem in order to derive dimensionless terms upon which the effectiveness depends. Empirical data from several dryers are used to derive an empirical correlation as a function of the dimensionless variables. Three cloth types were investigated, and a separate empirical correlation is proposed for each. Accordingly, the drum effectiveness concept and the correlation presented provide a new, more accurate, computationally efficient, and readily implemented framework for modeling and simulating clothes dryers. It is relevant to conventional gas and electric clothes drying appliances, vapor compression heat pump dryers, and thermoelectric heat pump clothes dryers. Along with appropriate empirical inputs, the framework is extensible to any thermal-evaporative cloth drying systems, including radial-flow horizontal axis tumble drying drums.

Authors:
ORCiD logo [1];  [1];  [1];  [2];  [1]
  1. Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
  2. Univ. of Louisville, Louisville, KY (United States)
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE Office of Energy Efficiency and Renewable Energy (EERE)
OSTI Identifier:
1502570
Grant/Contract Number:  
AC05-00OR22725
Resource Type:
Accepted Manuscript
Journal Name:
Energy (Oxford)
Additional Journal Information:
Journal Name: Energy (Oxford); Journal Volume: 172; Journal Issue: C; Journal ID: ISSN 0360-5442
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING

Citation Formats

Gluesenkamp, Kyle R., Boudreaux, Philip, Patel, Viral K., Goodman, Dakota, and Shen, Bo. An efficient correlation for heat and mass transfer effectiveness in tumble-type clothes dryer drums. United States: N. p., 2019. Web. doi:10.1016/j.energy.2019.01.146.
Gluesenkamp, Kyle R., Boudreaux, Philip, Patel, Viral K., Goodman, Dakota, & Shen, Bo. An efficient correlation for heat and mass transfer effectiveness in tumble-type clothes dryer drums. United States. doi:10.1016/j.energy.2019.01.146.
Gluesenkamp, Kyle R., Boudreaux, Philip, Patel, Viral K., Goodman, Dakota, and Shen, Bo. Wed . "An efficient correlation for heat and mass transfer effectiveness in tumble-type clothes dryer drums". United States. doi:10.1016/j.energy.2019.01.146.
@article{osti_1502570,
title = {An efficient correlation for heat and mass transfer effectiveness in tumble-type clothes dryer drums},
author = {Gluesenkamp, Kyle R. and Boudreaux, Philip and Patel, Viral K. and Goodman, Dakota and Shen, Bo},
abstractNote = {A heat and mass transfer effectiveness definition relevant to clothes dryers is developed in this work. A correlation is presented for determining the effectiveness of heat and mass transfer in a horizontal-axis, tumble-type clothes dryer drum with axial airflow. The correlation is a function of four measurable quantities: air mass flow rate, cloth mass, air mass in the drum, and the fall time experienced by a cloth falling the full height (i.e. diameter) of the drum. The Buckingham Pi Theorem is applied to the problem in order to derive dimensionless terms upon which the effectiveness depends. Empirical data from several dryers are used to derive an empirical correlation as a function of the dimensionless variables. Three cloth types were investigated, and a separate empirical correlation is proposed for each. Accordingly, the drum effectiveness concept and the correlation presented provide a new, more accurate, computationally efficient, and readily implemented framework for modeling and simulating clothes dryers. It is relevant to conventional gas and electric clothes drying appliances, vapor compression heat pump dryers, and thermoelectric heat pump clothes dryers. Along with appropriate empirical inputs, the framework is extensible to any thermal-evaporative cloth drying systems, including radial-flow horizontal axis tumble drying drums.},
doi = {10.1016/j.energy.2019.01.146},
journal = {Energy (Oxford)},
number = C,
volume = 172,
place = {United States},
year = {2019},
month = {1}
}

Journal Article:
Free Publicly Available Full Text
This content will become publicly available on January 30, 2020
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