Parametric investigation and performance optimization of a MED-TVC desalination system based on 1-D ejector modeling

•Modeling and optimization of a multi-effect Desalination with Thermal Vapour Compression.•Considering 1-D for ejector and three effects for desalination system.•Energy, exergy, exergoeconomic analyses and multi-objective optimization utilizing TOPSIS tool.•Optimizing the ejector geometry and stream condition based on freshwater production, GOR, and Żtot.•The optimum values for GOR, Żtot, and ṁd were 2.18, 3845 $/yr, and 30.33 g/s, respectively.