TY - GEN
T1 - Liquid desiccant latent load handling simulation for building HVAC applications with a DOAS module
AU - Meggers, Forrest
AU - Teitelbaum, Eric
AU - Pantelic, Jovan
AU - Rysanek, Adam
AU - Guo, Hongshan
N1 - Publisher Copyright:
© 2017 Building Simulation Conference Proceedings. All rights reserved.
PY - 2017
Y1 - 2017
N2 - Liquid desiccant dehumidification represents a promising research avenue for HVAC applications. This research presents a case study exploring a novel membrane desiccant absorber that we have characterized extensively at the bench scale in previous work, and in this study we present the simulation to consider the feasibility of scaling up the system to building room scale in terms of pumping costs and air mass exchanger fan cost. As part of an ongoing research pilot building project in Singapore, the simulation examines scaling up the liquid desiccant system to match the loading observed in the solid desiccant wheel in a dedicated outdoor air supply (DOAS) unit in hot and humid Singapore conditions. The liquid desiccant dehumidification system is composed of a novel combination of hydrophilic alkoxylated siloxane liquid desiccant and nonporous, vapour permeable Pebax® membrane. Such a configuration allows cooling with off-coil dehumidification, reducing the need to "over-cool" beyond the dewpoint, saving 40.0% - 61.6% in cooling energy. The corresponding liquid desiccant system would require a 66 x 66 tube array of shell-in-tube style minicontactors.
AB - Liquid desiccant dehumidification represents a promising research avenue for HVAC applications. This research presents a case study exploring a novel membrane desiccant absorber that we have characterized extensively at the bench scale in previous work, and in this study we present the simulation to consider the feasibility of scaling up the system to building room scale in terms of pumping costs and air mass exchanger fan cost. As part of an ongoing research pilot building project in Singapore, the simulation examines scaling up the liquid desiccant system to match the loading observed in the solid desiccant wheel in a dedicated outdoor air supply (DOAS) unit in hot and humid Singapore conditions. The liquid desiccant dehumidification system is composed of a novel combination of hydrophilic alkoxylated siloxane liquid desiccant and nonporous, vapour permeable Pebax® membrane. Such a configuration allows cooling with off-coil dehumidification, reducing the need to "over-cool" beyond the dewpoint, saving 40.0% - 61.6% in cooling energy. The corresponding liquid desiccant system would require a 66 x 66 tube array of shell-in-tube style minicontactors.
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U2 - 10.26868/25222708.2017.616
DO - 10.26868/25222708.2017.616
M3 - Conference contribution
AN - SCOPUS:85107341110
T3 - Building Simulation Conference Proceedings
SP - 1407
EP - 1411
BT - 15th International Conference of the International Building Performance Simulation Association, Building Simulation 2017
A2 - Barnaby, Charles S.
A2 - Wetter, Michael
PB - International Building Performance Simulation Association
T2 - 15th International Conference of the International Building Performance Simulation Association, Building Simulation 2017
Y2 - 7 August 2017 through 9 August 2017
ER -