Print Email Facebook Twitter Membrane distillation against a pressure difference Title Membrane distillation against a pressure difference Author Keulen, L. van der Ham, L.V. Kuipers, N.J.M. Hanemaaijer, J.H. Vlugt, T.J.H. Kjelstrup, S. Publication year 2017 Abstract Membrane distillation is an attractive technology for production of fresh water from seawater. The MemPower® concept, studied in this work, uses available heat (86 °C) to produce pressurized water (2.2 bar and 46 °C) by membrane distillation, which again can be used to power a turbine for co-production of electricity. We develop a non-equilibrium thermodynamic model to accurately describe the transfer at the liquid-membrane interfaces, as well as through the hydrophobic membrane. The model can explain the observed mass flux, and shows that 85% of the energy is dissipated at the membrane-permeate interface. It appears that the system's performance will benefit from a lower interface resistance to heat transfer, in particular at the permeate side of the membrane. The nature of the membrane polymer and the pore diameter may play a role in this context. © 2016 The Authors Subject LifeFI - Functional IngredientsELSS - Earth, Life and Social SciencesFood and NutritionNutritionHealthy LivingHeat and mass transferIrreversible thermodynamicsMembrane distillationMemPowerWater desalinationDesalinationDistillationHeat resistanceHeat transferMass transferThermodynamicsWater filtrationHeat and mass transferIrreversible thermodynamicsMembrane distillationMemPowerWater desalinationMembranes To reference this document use: http://resolver.tudelft.nl/uuid:a89f407f-67af-4391-bc7a-f9efe8e6ca08 DOI https://doi.org/10.1016/j.memsci.2016.10.054 TNO identifier 575113 ISSN 0376-7388 Source Journal of Membrane Science, 524, 151-162 Document type article Files To receive the publication files, please send an e-mail request to TNO Library.