摘要:
Solar heat is transferred to water by a relatively volatile liquid that flows in closed circuit. The water is thermally insulated from the sunlight. The volatile liquid is drawn by a thermosiphon effect through passageways exposed to the sunlight, and then through passageways shielded from the sunlight but in the same chamber as the passageways exposed to the sunlight, before proceeding to indirect heat exchange with the water and back to the reservoir of volatile liquid. A siphon loop in that shielded portion of the path, ensures that when there is no sunlight, the condensation in the conduits that were previously exposed to the sunlight will not cause reverse flow in the circuit.
摘要:
The invention relates to equipment for renewing the air of a plurality of rooms (1), comprising: a common single-flow airflow generator (2) arranged inside the rooms for extracting air from the rooms; a dual flow heat exchanger (3) arranged inside each room (1), comprising: an inlet opening (4) for the airflow (10) entering the room; an outlet opening (5) for the airflow (10) entering the room; an inlet opening (6) for the airflow (11) exiting the room; an outlet opening (7) for the airflow (11) exiting the room; a flow inlet inner duct (8) connecting the inlet (4) and outlet (5) openings for the airflow entering the room; a flow outlet inner duct (9) connecting the inlet (6) and outlet (7) openings for the airflow exiting the room; an exchange wall (12) having a first surface (13) defining a portion of said flow inlet inner duct (8) and a second surface (14) opposite the first defining a portion of the flow outlet inner duct (9); a plurality of individual ducts (15) for extracting air from the rooms, an individual extraction duct for a room connecting the flow generator to the outlet (7) of the heat exchanger (3) of the room for the airflow (11) exiting the room via a common air extraction collecting duct (20); an air inlet duct (16) in each room, individually allocated to each room, in which flows only the airflow (10) entering said room, and connecting the inlet opening (4) of the dual flow heat exchanger (3) of each room, for the airflow (10) entering the room (1), to the external environment (17).
摘要:
The present invention relates to methods for producing a heat exchanger comprising banks 2, 3, 4 each defining a fluid flow, each bank comprising two solid plates 11, 12 and spacer pieces to hold the two plates in position. The method is characterized in that, in order to produce at least one of the banks, there are five steps: A producing an insert plate 20 comprising strips, bridges of weakness 35, 36, 37 connecting the strips and capable of breaking under tension, and orifices separated by the walls 28, 29 and delimiting two lanes 31, 32; B interposing the insert plate 20 between the two plates 11, 12; C inserting a binder 41, 42 between the face 33 of the lanes 31 and the face 1-12 of the plate 11, and between the face 34-1 of the lanes 32 and the face 1-12 of the plate 12; D applying a force to bring the two plates 11, 12 into contact with the insert plate 20; E applying a force to part the two, upper and lower, plates 11, 12, to break the bridges 36, 37, 38 and bend the dividing walls 28, 29 so that, together with the two lanes, they form a Z shape. Another subject of the present invention is a heat exchanger produced according to the method of the invention.
摘要:
A hot water supply apparatus comprises a thermodynamic circuit having a compressor, a condensor for heat exchange between the thermodynamic fluid in the circuit and a high temperature source. That circuit further includes an evaporator arranged for heat exchange with a non-freezable heat carrying fluid which is circulated in a solar energy collecting circuit. A tank receives a body of water for heat storage. An heat exchanger is arranged in the circuit for circulation of the heat carrying fluid and is physically located above the tank. It may be combined with the evaporator. A pump directs a flow of water from the storage tank to sprinkling means associated with the heat exchanger whereby the apparatus operates as ice manufacturing device under severe cold conditions, when there is insufficient heating energy available from the sun.
摘要:
The invention relates to a device (1) enabling the exchange of heat between a first fluid (2) and a second fluid (3) flowing counter current through the device, comprising: an outer casing (4) sealed against the two fluids, having a long shape that extends between first (7) and second (9) ends; a wall (5) enabling heat exchange between the fluids, housed inside the outer casing; a first inlet (6) for the first fluid (2), formed at the first end (7) of the outer casing; a second inlet (8) for the second fluid (3), formed at the second end (9) of the outer casing (4) opposite the first end (7), the aforementioned exchange wall (5) extending between the first (6) and second (8) fluid inlets; a first outlet (10) for extracting the first fluid (2) from the outer casing (4), formed in the area at the first end (7); a second outlet (11) for extracting the second fluid (3) from the outer casing (4), formed in the area at the second end (9); a first pipe (12) enabling the flow of the first fluid (2) inside the outer casing (4); and a second pipe (13) enabling the flow of the second fluid (3) inside the outer casing (4), such that (i) the second outlet (11) and the first inlet (6) and (ii) the first outlet (10) and the second inlet (8) are separated respectively by a distance equal to or greater than the length (□) of the exchange wall. The invention also relates to the different uses of the device.
摘要:
Solar heating units comprise a flat transparent panel with an absorbing panel therebeneath to whose upturned edges the transparent panel is supportingly joined by a thermally polymerized elastomer.