Journal
BUILDING AND ENVIRONMENT
Volume 221, Issue -, Pages -Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.buildenv.2022.109338
Keywords
Cooling; Air conditioning; Indoor air quality; Thermal comfort; Hot -humid climates
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This paper examines space cooling solutions for non-residential buildings in hot-humid climates and identifies all-air systems with heat recovery and radiant ceiling coupled with air handling as the most recommended options. The findings can be extrapolated to other developing cities and provide guidance for future research.
Providing spaces with thermal comfort is a critical need, particularly in hot-humid regions, where more than a third of the world's population are settled. In terms of space cooling technologies, the global market is largely dominated by window air conditioners and ductless mini-splits. However, numerous other options are available and require more exploration to clearly identify their advantages against conventional systems. In this regard, there are plenty of studies about active cooling systems, but still little is known about the best choices for their application in high-density buildings in extreme humid climates, where latent loads are dominant. In such a framework, this paper briefly examines and identifies possible solutions for space cooling in non-residential buildings in hot-humid climates. In this sense, an all-air system with heat recovery and a radiant ceiling coupled with air handling were identified as the most recommended options for such environments, based on their working principles. Furthermore, the study includes a detailed assessment of the application of these solutions on a case-study building in Mogadishu, Somalia, from the point of view of the cooling demand to the energy consumption of the selected cooling systems. The findings of this work can be extrapolated to be then applied in other developing cities, and outline the path future research should follow to improve the systems.
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