Abstract: The present invention relates to a heat exchanger comprising: a core having a plurality of concentric channels extending along a central axis, the plurality of channels being concentric about the central axis and including: a first set of concentric channels through which a first fluid can pass; and a second set of concentric channels through which a second fluid can pass, to exchange heat with the first fluid passing through the first set of concentric channels, the concentric channels being alternatingly arranged, from the central axis, between a channel of the first set of concentric channels and a channel of the second set of concentric channels.

Abstract: A thermal distillation system comprises heating means and cooling means arranged to heat and cool, respectively, treatable liquid in a liquid circuit having a first section between a heating means output and cooling means input, and a second section between an a cooling means output and heating means input, and further comprises distillation stages, each including an evaporator on the first section and a condenser on the second section in heat exchange relationship with liquid in the second section, a carrier gas circuit, on which the evaporator and condenser are arranged, and an output for outputting liquid extracted, wherein the stages are arranged such that their evaporators are disposed along the first section in a direction from the heating means to the cooling means and their condensers are disposed in corresponding order along the second section in a direction from the heating means to the cooling means.

Abstract: A thermal distillation system comprises heating means and cooling means arranged to heat and cool, respectively, treatable liquid in a liquid circuit having a first section between a heating means output and cooling means input, and a second section between an a cooling means output and heating means input, and further comprises distillation stages, each including an evaporator on the first section and a condenser on the second section in heat exchange relationship with liquid in the second section, a carrier gas circuit, on which the evaporator and condenser are arranged, and an output for outputting liquid extracted, wherein the stages are arranged such that their evaporators are disposed along the first section in a direction from the heating means to the cooling means and their condensers are disposed in corresponding order along the second section in a direction from the heating means to the cooling means.