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Title: Thermal-Hydraulic Performance of Wavy-Fin Heat Exchanger Under Dehumidifying Condition

Abstract

Condensate accumulation on the heat exchangers has been identified as a critical problem for evaporators operating below the dew point temperature. An experimental study has been conducted to investigate the thermal-hydraulic performance of wavy fin heat exchangers under dehumidifying operating conditions. The relative comparison of pressure drop and heat transfer rate has been made at different inlet flow rates considering heat exchanger characteristics such as fin density and flow depth. The relative contribution of sensible and latent capacity to the total heat exchanger's capacity has been investigated at different flow rates. The phenomena of condensate carry-over has been investigated qualitatively based on observation. Towards the end the impact of fin density on heat transfer rate and pressure drop for for fully and partially wet heat exchangers has been compared.

Authors:
ORCiD logo [1];  [2]
  1. ORNL
  2. University of Abu Dhabi
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:
1474454
DOE Contract Number:  
AC05-00OR22725
Resource Type:
Conference
Resource Relation:
Conference: ASHRAE Winter conference 2018 - Chicago, Illinois, United States of America - 1/21/2018 5:00:00 AM-1/24/2018 5:00:00 AM
Country of Publication:
United States
Language:
English

Citation Formats

Nawaz, Kashif, and Sultan, Muhammad. Thermal-Hydraulic Performance of Wavy-Fin Heat Exchanger Under Dehumidifying Condition. United States: N. p., 2018. Web.
Nawaz, Kashif, & Sultan, Muhammad. Thermal-Hydraulic Performance of Wavy-Fin Heat Exchanger Under Dehumidifying Condition. United States.
Nawaz, Kashif, and Sultan, Muhammad. Mon . "Thermal-Hydraulic Performance of Wavy-Fin Heat Exchanger Under Dehumidifying Condition". United States. https://www.osti.gov/servlets/purl/1474454.
@article{osti_1474454,
title = {Thermal-Hydraulic Performance of Wavy-Fin Heat Exchanger Under Dehumidifying Condition},
author = {Nawaz, Kashif and Sultan, Muhammad},
abstractNote = {Condensate accumulation on the heat exchangers has been identified as a critical problem for evaporators operating below the dew point temperature. An experimental study has been conducted to investigate the thermal-hydraulic performance of wavy fin heat exchangers under dehumidifying operating conditions. The relative comparison of pressure drop and heat transfer rate has been made at different inlet flow rates considering heat exchanger characteristics such as fin density and flow depth. The relative contribution of sensible and latent capacity to the total heat exchanger's capacity has been investigated at different flow rates. The phenomena of condensate carry-over has been investigated qualitatively based on observation. Towards the end the impact of fin density on heat transfer rate and pressure drop for for fully and partially wet heat exchangers has been compared.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2018},
month = {1}
}

Conference:
Other availability
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