THERMAL ENERGY ARRANGEMENT

A thermal energy arrangement (2) comprising a mechanical vapor recompression, MVR, unit (4), an absorption cooler unit (6), and a control system (8) configured to control said MVR unit (4) and said absorption cooler unit (6).The evaporation compartment (18) of the MVR-unit (4) is arranged to receive a working liquid, comprising a mixture of at least an absorbent, and a refrigerant, from the absorption cooler unit (6) via a working liquid line (22). The evaporation compartment (18) is connected to a controllable vacuum unit (28) via a vacuum line (30), wherein said control system (8) is configured to control said vacuum unit (28) to generate a variable pressure, being below ambient pressure, in order to lower the evaporation temperature of the working liquid within the evaporation compartment (18), wherein the set of pressure control rules is related to characteristics of the working liquid.The working liquid condensate from the MVR-unit (4) is arranged to be supplied to the absorption cooler unit (6) via a working liquid condensate line (32), wherein, as the refrigerant evaporates in the evaporation compartment (18), a working liquid salt brine solution in said at least one evaporation compartment (18) is arranged to be supplied via a salt brine solution line (34) to said absorption cooler unit (6).A heat exchanger (36) is arranged at said working liquid condensate line (32) and said salt brine solution line (34) configured to transfer heat from the working liquid condensate and the salt brine solution to the working liquid in the working liquid line (22) to be supplied to said MVR-unit (4).