摘要:
The invention relates to an air handling and air conditioning system (100) intended to provide fresh air to the interior of a volume (200), preferably a building, the system comprising at least one heat exchanger module with dual air flow allowing heat transfer and transfer of water vapour between the two air flows, the system being designed to be able to function in a mode for cooling the building, in which the two air flows are respectively comprised of an exterior air flow (F1) intended to be introduced into the building (200), and a cooler and drier stale air flow (F2) coming from the interior of the building. According to the invention, the system also comprises: - means (20) for determining the relative humidity of the exterior air flow (F1) at the inlet to said heat exchanger module; and - control means (6) configured to order a contribution of heat to the exterior air flow (F1) before its entry into the module if its relative humidity exceeds a predetermined value.
摘要:
The invention relates to a heat exchange structure that comprises a main surface (6) provided with blind holes (8) formed in said surface (6), the inner surface of the holes (8) and the surface (10) of said main surface outside the holes being covered with nanoparticles (12), the inside of the holes (8) having a non-wettability property relative to a given liquid, and the surface (10) of the surface between the holes (8) having a wettability property relative to said liquid.
摘要:
A heat exchanger (10) comprises a plurality of fluid flow channels (11) and a header (12) fed with a stream (F) of a two‑phase fluid having two phases (PL, PV), one of them being the liquid phase (PL) and distributing said stream (F) to the plurality of channels (11). Each channel (11) has an inlet opening into the header (12). The heat exchanger (10) comprises at least one main ultrasound generator (13) associated with at least one of said channels (11) and configured to generate a deformation (14) of a free surface of said liquid phase (PL) extending close to the inlet of the associated channel (11), notably toward the inlet of the associated channel (11).
摘要:
The invention relates to an exchanger (1) with double air flow, allowing a transfer of heat and a transfer of moisture between the two air flows, and comprising a plurality of air circulation networks (2a, 2b) which are stacked one on another in a stacking direction (4) and are separated from one another by membranes (6) which are permeable to water vapour and impermeable to air. According to the invention, at least one of the networks is produced from a honeycomb structure which rests on either side against two of the membranes (6), the structure having cylindrical cells (10), the axes (12) of which are parallel to the direction (4), and at least some of the faces of the cells are perforated for the air to flow through.
摘要:
The invention relates to a heat exchanger through which a heat transfer fluid flows, said exchanger comprising at least one three-dimensional structure defining surfaces for exchange with the fluid and triangular shaped channels for the passage of the fluid. According to the invention, at least one of the aforementioned channels, extending in a first direction, has a non-constant cross-section in this direction and in the direction of the thickness of the exchanger, so as to create turbulence in the flow of the fluid.
摘要:
The invention relates in particular to a system for the production of electrical or mechanical energy comprising a fluid circuit in which an organic working fluid circulates and comprising a plurality of components traversed by the working fluid and including: at least one first heat exchanger (110), configured to be thermally coupled with at least one first heat source (170); an expander (120), one inlet (120a) of which is fluidly connected to an outlet (110b) of the first heat exchanger (110); a second heat exchanger (130) configured to be thermally coupled to a second heat source (180) that is colder than the first heat source (170); and at least one pump (150) configured to set the working fluid in motion in the fluid circuit. The circuit is configured such that the working fluid passes successfully through at least the pump (150), the first heat exchanger (110), the expander (120) and the second heat exchanger (130), and then the pump (150) again; wherein the system comprises an injector (140) having: - a first inlet (140a) fluidically connected to an outlet (130b) of the second heat exchanger (130); - a second inlet (140c) fluidically connected to the outlet (110b) of the first heat exchanger (110); - and an outlet (140b) fluidically connected to an inlet (150a) of the pump (150).