摘要:
A manufacturing method of a solar thermal collector includes the following steps. First, a first slab and a second slab stacked together are provided, and the first slab and the second slab are welded together along a plurality of rails, such that the first slab and the second slab are connected to each other through the rails to form a plurality of stripe-shaped connecting portions. Then, a high pressure medium is filled between the first slab and the second slab, such that the first slab and the second slab, except for the stripe-shaped connecting portions, are pushed away from each other by pressure provided from the high pressure medium, so as to form a plurality of channels divided by the stripe-shaped connecting portions. A solar selective coating is formed on an outer surface of the first slab.
摘要:
A solar thermal collector and an accessory structure of a building are provided. The solar thermal collector includes at least one heat absorbing plate and at least one heat insulating plate. Each of the heat absorbing plate includes at least one first slab and first engaging parts connected with the first slab. Each of the heat insulating plate includes at least one second slab and second engaging parts connected with the second slab. The first engaging parts are respectively engaged with the second engaging parts, and a gap is maintained between the first slab and the second slab to define a heat collecting channel, through which a heat transfer fluid flows between the heat absorbing plate and the heat insulating plate. A heat conductivity of the heat absorbing plate is at least 30 times greater than a heat conductivity of the heat insulating plate.