Abstract: A process system comprising a mechanical vapor compression (MVC/MVR) subsystem arranged to receive a liquid and arranged to produce compressed vapor from the liquid and to heat the liquid being received is disclosed. The MVR-subsystem is arranged as a closed loop vapor MVR-subsystem arranged to reuse the produced vapor. The process system comprises a process subsystem connected to the MVC/MVR-subsystem and arranged to receive a branched portion of the compressed vapor, wherein the process subsystem is arranged to use the branched portion of the compressed vapor during operation of the process subsystem. A method for operating a process system is also disclosed.

Abstract: An energy system comprising a mechanical vapor recompression (MVR) subsystem is disclosed. The MVR-subsystem is arranged to receive a liquid and is arranged to produce compressed vapor from the liquid and to heat the liquid being received. The energy system comprises a heat subsystem connected to the MVR-subsystem, which heat subsystem is arranged to use a branched portion of the compressed vapor and/or at least a portion of the liquid being heated to produce energy. A method for producing energy is also disclosed.

Abstract: A mechanical vapor recompression (MVR) arrangement includes a compound turbine system, a pressure-tight enclosure provided with a first end and a second end, having an essentially circular cylindrical elongated shape along a longitudinal axis A, and a central tube with an essentially circular cross-section and running within the enclosure to allow steam to flow from the second end to the first end. The MVR arrangement includes an inner central tube arranged concentrically within the central tube and running from the second end to, or towards, the first end, where the inner central tube has an outer diameter related to the inner diameter of the central tube such that a steam flow conducting space is provided between an outer surface of the inner central tube and an inner surface of the central tube. The compound turbine system includes a turbine assembly with a turbine having axial turbine vane members.

Abstract: A mechanical vapor recompression (MVR) liquid purification system, in particular an MVR water desalination system, comprising a pressure-tight enclosure (2) provided with a first end (4) and a second end (6), having an essentially circular cylindrical elongated shape along a longitudinal axis A, and numerous evaporation compartments E1-E3, arranged within said enclosure (2) along the longitudinal axis A. Each evaporation compartment is provided with a plurality of longitudinal pipes (10) running from one sidewall (8) to the other sidewall (8), and that the circular sidewalls are provided with openings for said plurality of pipes. The system further comprises a central tube (12) running along the longitudinal axis A of the enclosure (2) through the centers of said evaporation compartments E1-E3, and configured to allow steam to flow from the second end to the first end of the enclosure.