November 2023

Conference Paper

Effectiveness of Advanced Three Fluid Heat and Mass Exchanger

By:
Gao, Zhiming ; Yang, Zhiyao ; Kumar, Navin ; Gluesenkamp, Kyle R; Abuheiba, Ahmed G; Baxter, Van D
Journal Name:
ASHRAE Transactions
Page Number:
362-372
Volume:
127
Issue Number:
2
Publication Date:
November 9, 2023
Conference Name:
2021 ASHRAE Annual Conference
Conference Location:
Phoenix, Arizona, United States of America
Conference Sponsor:
ASHRAE

Abstract

Advanced internally-cooled membraned-based heat and mass exchangers (HMX), which accounts for three separate fluid streams, are capable of utilizing the sensible and latent heat removed from spacecooling to heat water. The technology provides a unique approach of enhancing the efficiency and cost effectiveness of future HVAC equipment. This paper aims to numerically identify and understand the impact of geometric size, operation conditions, and membrane properties on the overall effectiveness of three-fluid HMXs. The simulations are based on an ORNL in-house open-source HMX model which is capable of simulating such three-fluid HMX components for various flow patterns. The results are expected to enable detailed configuration evaluation and provide in-depth understanding of optimal three-fluid HMX performance at cost effectiveness.