RT journal article T1 Techno-Economic Assessment of Air and Water Gap Membrane Distillation for Seawater Desalination under Di erent Heat Source Scenarios A1 Amaya Vias, David A1 López Ramírez, Juan Antonio A2 Tecnologías del Medio Ambiente K1 membrane distillation K1 air gap membrane distillation K1 water gap membrane distillation K1 techno-economic assessment K1 seawater desalination K1 waste heat K1 solar heat AB Membrane distillation (MD) has a great deal of potential and this is currently being exploredby the scientific community. However, this technology has not yet been implemented by industry, andan estimation of final product costs is key to its commercial success. In this study a techno-economicassessment of air gap MD (AGMD) and water gap MD (WGMD) for seawater desalination underdi erent capacities and heat source scenarios was developed. The simplified cost of water (SCOW)method, which estimates investment costs, fixed and variable costs, as well as amortization factorsand price influence over time was applied. In addition, experimental data from a laboratory-scale MDdesalination plant were also used. The results showed water costs in the range of 1.56 to 7.53 ¿/m3 forWGMD and 2.38 to 9.60 ¿/m3 for AGMD. Specifically, the most feasible scenario was obtained forWGMD with a capacity of 1000 m3 daily using waste and solar heat. Finally, the costs obtained forMD were similar to those of conventional desalination technologies at the same scale factor. Therefore,although large-scale pilot studies and optimization of manufacturing processes are needed, MDshows very promising results that should be considered further. PB MDPI SN 2073-4441 YR 2019 FD 2019-10 LK http://hdl.handle.net/10498/21991 UL http://hdl.handle.net/10498/21991 LA eng DS Repositorio Institucional de la Universidad de Cádiz RD 12-nov-2026