Metal-Organic Framework Adsorbent Materials in HVAC Systems: General Survey and Theoretical Assessment

Andrea Rocchetti (), Martina Lippi, Luca Socci, Paride Gullo, Vahid Khorshidi and Lorenzo Talluri ()
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Andrea Rocchetti: Department of Industrial Engineering, University of Florence, 50139 Florence, Italy
Martina Lippi: Department of Industrial Engineering, University of Florence, 50139 Florence, Italy
Luca Socci: Department of Industrial Engineering, University of Florence, 50139 Florence, Italy
Paride Gullo: Department of Mechanical and Electrical Engineering, University of Southern Denmark, 6400 Sønderborg, Denmark
Vahid Khorshidi: RAC R&D Innovation Lab, Danfoss A/S, 6430 Nordborg, Denmark
Lorenzo Talluri: Department of Industrial Engineering, University of Florence, 50139 Florence, Italy

Energies, 2022, vol. 15, issue 23, 1-14

Abstract: In this paper, the use of Metal-Organic Framework (MOF) materials as an option for the energy efficiency enhancement of HVAC systems is investigated. In particular, the possibility of using MOFs as dehumidifying materials to reduce the latent load associated with the moisture content of the airflows is studied. A literature review is proposed, highlighting the benefits of using MOFs instead of other adsorbents (e.g., silica-gel) and discussing the unique features (high water uptake capacity and low regeneration temperatures) that make MOFs a preferential desiccant. The possibility to finely tune these properties is also underlined, reporting some explicative examples. A theoretical proposal of a psychrometric transformation, to be performed in a HVAC system equipped with a MOF-Assisted Dehumidifier (MAD), is presented. This transformation is compared with a traditional one (cooling and dehumidification operated by a cooling coil with low temperatures of the coolant). The preliminary numerical simulations, conducted on a reference case study in Florence, Italy, show an estimated energy saving of 30–50%, leading us to consider the use of this technology as a very competitive one in the air-conditioning sector.

Keywords: metal-organic framework; water-uptake; HVAC; dehumidification; energy-saving (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2022
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