1. Desiccant-Based Air Handling Unit Alternatively Equipped with Three Hygroscopic Materials and Driven by Solar Energy
- Author
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Francesco Pepe, Carlo Roselli, Maurizio Sasso, Pietro Bareschino, and F. Tariello
- Subjects
Desiccant ,Chabazite ,Control and Optimization ,Primary energy ,020209 energy ,hygroscopic materials ,Energy Engineering and Power Technology ,02 engineering and technology ,TRNSYS ,lcsh:Technology ,dynamic simulations ,energy and environmental analysis ,desiccant wheel, solar heating and cooling, hygroscopic materials, dynamic simulations, energy and environmental analysis ,020401 chemical engineering ,0202 electrical engineering, electronic engineering, information engineering ,0204 chemical engineering ,Electrical and Electronic Engineering ,Engineering (miscellaneous) ,Energy demand ,Waste management ,Renewable Energy, Sustainability and the Environment ,business.industry ,solar heating and cooling ,lcsh:T ,Phillipsite ,Solar energy ,desiccant wheel ,Environmental science ,business ,Thermal energy ,Energy (miscellaneous) - Abstract
The energy demand for the air-conditioning of buildings has shown a very significant growth trend in the last two decades. In this paper three alternative hygroscopic materials for desiccant wheels are compared considering the operation of the air handling unit they are installed in. The analyses are performed by means of the TRNSYS 17®, software, simulating the plant with the desiccant wheel made of: silica-gel, i.e., the filling actually used in the experimental plant desiccant wheel of the University of Sannio Laboratory, MIL101@GO-6 (MILGO), a composite material, consisting of graphite oxide dispersed in a MIL101 metal organic framework structure, Campanian Ignimbrite, a naturally occurring tuff, rich in phillipsite and chabazite zeolites, widespread in the Campania region, in Southern Italy. The air-conditioning system analyzed serves a university classroom located in Benevento, and it is activated by the thermal energy of a solar field for which three surfaces are considered: about 20, 27 and 34 m2. The results demonstrate that a primary energy saving of about 20%, 29%, 15% can be reached with silica-gel, MILGO and zeolite-rich tuff desiccant wheel based air handling units, respectively.
- Published
- 2019