“Desigrated”-Desiccant Integrated Façade for the Hot-Humid Climate of Bangkok, Thailand

Natchai Suwannapruk, Alejandro Prieto and Christien Janssen
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Natchai Suwannapruk: Urbanism and Building Sciences, Building Technology, Department of Architectural Engineering and Technology, Faculty of Architecture and the Built Environment, Delft University of Technology, 2628 Delft, The Netherlands
Alejandro Prieto: Architectural Facades & Products Research Group, Department of Architectural Engineering and Technology, Faculty of Architecture and the Built Environment, Delft University of Technology, 2628 Delft, The Netherlands
Christien Janssen: Department of Architectural Engineering and Technology, Faculty of Architecture and the Built Environment, Delft University of Technology, 2628 Delft, The Netherlands

Sustainability, 2020, vol. 12, issue 13, 1-28

Abstract: “Desigrated” presented an attempt to integrate heat prevention strategies with low-ex cooling technologies, namely the desiccant and M-cycle evaporative cooling technology, in the form of a façade system for high-rise office buildings. The project targets to provide an alternative cooling solution for the hot and humid climate context of Bangkok. The results from experiments by various researchers are used as assumptions in developing the system, which was then evaluated through numerical methods and dynamic simulations. Being one of the prominent dehumidification technologies, a composite silica gel heat exchanger (CCHE) was implemented as the primary part of the façade system, while the M-cycle technology would also be implemented as a secondary cooling technique to cool down the supply air. The evaluation shows a promising result with up to 36% energy consumption reduction in comparison with the conventional cooling system, presenting itself as a transitioning tool in order to replace refrigerant cooling.

Keywords: façade; building services; cooling; solar cooling; low-exergy; desiccants; evaporative cooling; heat exchanger; hot-humid; Bangkok (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2020
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