Generally, the present disclosure of embodiments of Disclosed is a construction element of a null-energy system. Such a construction element can include a body on which the construction element can further include a porous material compartment with porous material to store water and evaporate the stored water outwards from the porous material through a holding layer on the opposite side of the porous material compartment to the body. The disclosure relates also to a null-energy system using a construction element of null-energy system as embodied therein.

The present disclosure discloses a fabricated air conditioner wall and an operation method thereof, and the fabricated air conditioner wall included a precast wall and a heat pump system embedded in the precast wall. The components of the fabricated air conditioner wall are mass-produced and assembled in factories. The fabricated air conditioner wall mainly includes an indoor heat exchanger, a throttle valve, a condensate water tank, a four-way valve, a wall-buried pipe, a compressor, and an outdoor heat exchanger. In a cooling mode, condensate water is collected in the condensate water tank to cool the refrigerant. In winter, when the precast wall is illuminated by sunlight, a temperature of an outer wall is often higher than a temperature of outdoor air, and this solar energy can be reasonably utilized by the wall-buried pipe, thereby improving the heating effect of the air conditioner itself.

An aspect concerns a method (10) of producing a precast building product. The method (10) includes providing a mould (26) to receive a pourable building substance to be cured. The method further includes the steps of pouring the building substance into the mould and allowing the poured building substance to cure inside the mould to form a sold mass body. The method further includes providing a wire-cutting assembly operatively associated with the mould and cutting the solid mass body inside the mould into separate building products.

A construction panel contains at least one insulation layer, at least one active thermal layer containing at least an electrical heating and/or an electrical cooling element, and a connector for connecting the at least one active thermal layer to a source of electrical current. The active thermal layer is preferably an active heating or cooling layer.

A positive temperature coefficient (PTC) composition having a first thermally active polymer having a melting point of 30-70° C. and providing a first PTC in a lower temperature range below 70° C., and a second thermally active polymer having a melting point of 70-140° C. and providing a second PTC in a higher temperature range above 70° C., the composition also having conductive particles; and an organic solvent with a boiling point higher than 100° C., solvent being capable of dissolving both the first and second thermally active polymer. The PTC composition has two distinct PTC characteristics at the two different temperature ranges.

A heat collector device is provided. The heat collector includes an exterior surface exposed to an environment, and an interior surface. Side walls separate the exterior and interior surfaces. A heat insulation interposes the exterior and interior surfaces. Each hot air duct includes a first portion interfacing with the external surface and a second portion interfacing with the heat insulation. Each cold air duct is encompassed by the heat insulation. A first chamber formed by a first side wall provides fluidic communication between the air ducts at a first end portion of each respective duct. A second chamber formed by a second side wall provides fluidic communication between the air ducts at a second end portion of each respective duct. A heat exchange mechanism disposed in the second chamber removes heat from a first fluidic medium of the air ducts, the first chamber, and the second chamber.

Systems and methods are described herein for a panelized building assembly. In one example, an assembly may include one or more of a first composite planar panel, and second composite planar panel, and a planar joining element. The first and second planar panels may include a core material sandwiched between two fiber-reinforced skin elements. Each of the panels may include a first block of fiber-reinforced material coupled to at least one of the skin elements, which may define two slots for receiving the planar joining element. In some cases, the planar joining element, when placed within the slots of two panels to be joined, may transfer a load between the fiber-reinforced material of the two panels. The resulting joint may form a water-tight and fire-retardant seal.

Systems and methods are described herein for a panelized building assembly comprising a double skeleton of planar connectors, positioned parallel to and behind the inner and outer building surfaces of panels to be connected. The planar elements may be folded symmetrically about the bisected angle between adjacent surfaces so as to form a coherent and continuous double layer that can, in some cases, offers structural, fire, acoustical and waterproofing performance consistently between various panel. The connectors may extend into the mass of a block of material that forms a continuous edge around the perimeter of the panels, which is bonded continuously to the fiber-reinforced skin of the panel and to the core material that the inner and outer fiber reinforced skins are also continuously bonded to.

In a first aspect, a system for heating, cooling, or both heating and cooling a room is disclosed. The system includes a panel with a first, second, and third wall. The second wall is disposed between the first and third walls and separated by a plurality of partitions. The partitions create a first and second row of elongated channels. Each channel in the first row is bounded on two sides by two partitions and on two other sides by the first and second walls. Each channel in the second row is bounded on two sides by two partitions and on two other sides by the second and third walls. The first row of channels is a fluid layer configured to allow heated or cooled fluid to pass through. The fluid layer is in thermal communication with the room. The second row of channels is an insulating vacuum layer, with a reduced pressure that is at least 20% less than atmospheric pressure.

This disclosure describes systems, methods, and apparatus for a structural insulation assembly having a variable insulating value and being incorporated into a thermal envelope of a structure, the assembly comprising a first and second surface; a cavity between the first and second surfaces and at least partially filled with a gas; a plurality of insulating elongated fins fixed to distinct rotational axes parallel to each other, the plurality of elongated fins being continuously rotatable between a closed position, where the plurality of elongated fins are substantially vertical, and a fully open position, where the plurality of elongated fins are perpendicular to the first and second surfaces and parallel to each other; an actuator for controlling a rotational angle of the insulating elongated fins to effectuate the variable insulating value; and a controller configured to pass instructions to the actuator dictating the angle of the insulating elongated fins.