Phase change refrigeration glass enclosure structure capable of providing cold and heat

Abstract

The invention belongs to the technical field of energy conservation and environmental protection of photovoltaic buildings, and particularly relates to a novel phase-change refrigeration glass enclosure structure capable of providing cold and heat, which comprises a photovoltaic phase-change glass window, a thermoelectric air conditioning system and a control system, the photovoltaic phase-change glass window is mounted on a wall of a building house, and the thermoelectric air conditioning system is arranged above the glass window. The photovoltaic phase-change glass window is composed of a window framework and a rotatable photovoltaic phase-change shutter mechanism. The window framework is composed of a window frame, first glass and second glass. The rotatable photovoltaic phase change shutter mechanism comprises a first driver, a second driver, a first swing arm, a second swing arm, a third swing arm and a motor, and the foldable shutter thermoelectric air conditioning system comprises a first fan, a second fan, a battery, an electric heating device and a switch. The control system comprises a controller, an outdoor temperature sensor, an indoor temperature sensor and a magneto-optical effect sensor. Solar photo-thermal cooperative utilization is achieved, building energy consumption can be effectively reduced, and the solar energy utilization rate is increased.

Description

Technical Field

[0001] The invention belongs to the technical field of energy-saving and environmental protection of photovoltaic buildings, and specifically relates to a novel phase-change refrigeration glass enclosure structure capable of providing cold and heat. Background Art

[0002] At present, building energy consumption accounts for 40% of the total social energy consumption, of which air conditioning system energy consumption accounts for about 60% of the total building energy consumption. Glass windows, as an important part of the building structure, account for 20%-40% of the energy consumption of the building envelope. Combining photovoltaic power generation technology with phase change energy storage technology is an important means to improve the thermal inertia of glass envelope structures and achieve stable photovoltaic power generation efficiency. At the same time, photovoltaic panels can use the direct current converted from sunlight to drive semiconductor thermoelectric devices for cooling or heating, which is an important direction to reduce building energy consumption and improve indoor thermal comfort.

[0003] In the existing technology, photovoltaic blinds can achieve the dual functions of sunshade and power generation. However, photovoltaic blinds still have defects such as small light receiving area, high operating temperature leading to reduced power generation efficiency, and low power generation efficiency. At the same time, traditional blinds are affected by their structure and the optical and thermal properties of the material itself, and cannot achieve coordinated regulation of solar thermal utilization across seasons. Summary of the invention

[0004] In order to solve the problems existing in the above-mentioned background technology, the purpose of the present invention is to provide a phase-change refrigeration glass enclosure structure that can provide cold and heat. A photovoltaic blind with an added phase-change layer is used to provide indoor cooling and heating by supplying direct current power to a semiconductor electric heating device through photovoltaic power generation. The phase-change blinds with added nanoparticles use latent heat to maintain the power generation efficiency of the photovoltaic blinds and absorb solar radiation to store heat, thereby improving the indoor environment. The three-layer blinds can switch to different structural forms according to weather conditions and indoor light and heat requirements, realize the coordinated use of solar energy and heat, and can effectively reduce building energy consumption and improve solar energy utilization.

[0005] The technical solution adopted by the present invention is: a phase-change refrigeration glass enclosure structure that can provide cold and heat, the glass enclosure structure includes a photovoltaic phase-change glass window, a thermoelectric air-conditioning system and a control system, the photovoltaic phase-change glass window is installed on the wall of a building, and the thermoelectric air-conditioning system is arranged above the photovoltaic phase-change glass window.

[0006] The photovoltaic phase-change glass window consists of a window frame and a rotatable photovoltaic phase-change shutter mechanism, wherein the rotatable photovoltaic phase-change shutter mechanism is arranged in the window frame; the window frame consists of a window frame, a first glass and a second glass forming a closed space.

[0007] The rotatable photovoltaic phase-change louver mechanism comprises a first driver, a second driver, a second driver, a first swing arm, a second swing arm, a third swing arm, a motor and a plurality of foldable louvers; the foldable louvers are foldably assembled by three layers of louvers through a rotating shaft, and the ends of the louvers are further provided with a rotating shaft for installation, a photovoltaic panel is arranged in the cavity of the middle louver, and the cavities of the louvers on both sides thereof are respectively filled with a first nanoparticle-enhanced paraffin wax and a second nanoparticle-enhanced paraffin wax; the ends of the louvers equipped with the photovoltaic panels are installed on the first swing arm, and the first swing arm is driven by the first driver; the louvers filled with the first nanoparticle-enhanced paraffin wax are respectively filled with the second nanoparticle-enhanced paraffin wax, and the louvers are respectively filled with the first ... The louvers filled with one nanoparticle-reinforced paraffin are installed on the second swing arm, and the second swing arm is driven by the second driver; the louvers filled with the second nanoparticle-reinforced paraffin are installed on the third swing arm, and the third swing arm is driven by the third driver; the first driver, the second driver and the third driver are driven by motors and control the three drivers to move up and down, wherein the first driver controls the opening angle of the louvers equipped with photovoltaic panels, and the second driver and the third driver respectively control the opening and folding of the louvers filled with the first nanoparticle-reinforced paraffin and the louvers filled with the second nanoparticle-reinforced paraffin.

[0008] The thermoelectric air-conditioning system includes a first fan, a second fan, a battery, an electric heating device and a switch. The electric heating device is arranged above the photovoltaic phase-change glass window. A fin heat sink is provided on the outside of the electric heating device. The first fan and the second fan are respectively arranged in the first ventilation duct and the second ventilation duct above and below the electric heating device. Ventilation shutters are respectively provided on both sides of the first ventilation duct and the second ventilation duct. The electric heating device is powered by a photovoltaic panel, and the switch is used to control the direction of the current.

[0009] The control system includes a controller, an outdoor temperature sensor, an indoor temperature sensor and a magneto-optical effect sensor; the outdoor temperature sensor is arranged on the outdoor wall around the air inlet of the second ventilation duct, and is used to collect the outdoor temperature; the indoor temperature sensor is arranged on the indoor wall around the air inlet of the first ventilation duct, and is used to collect the indoor temperature; the magneto-optical effect sensor is arranged outdoors, and is used to detect the outdoor light intensity; the controller is electrically connected to the outdoor temperature sensor, the indoor temperature sensor, the magneto-optical effect sensor and the motor respectively.

[0010] Furthermore, the blinds are made of tempered ultra-clear glass.

[0011] Further, the fin heat sink is made of copper which has high thermal conductivity.

[0012] Furthermore, the first nanoparticle-reinforced paraffin is paraffin reinforced with aluminum oxide nanoparticles, wherein the nanoparticle concentration is 10 ppm, the nanoparticle diameter is 20 nm, and the paraffin melting point is 18°C.

[0013] Furthermore, the second nanoparticle-reinforced paraffin is paraffin reinforced with copper oxide nanoparticles, wherein the nanoparticle concentration is 100 ppm, the nanoparticle size is 20 nm, and the paraffin melting point is 26°C.

[0014] Furthermore, according to different weather conditions, the angle of the cavity where the photovoltaic panel is located can be adjusted under the control of the first driver, and the cavity filled with nano-particle paraffin can adjust the folding and unfolding form of the louver cavity under the control of the second driver and the third driver, thereby making full use of the energy storage function of the phase change material, maintaining the temperature of the photovoltaic module, and improving the power generation efficiency. According to the photothermal characteristics of different nano-paraffins, efficient conversion and utilization of solar energy can be achieved.

[0015] Furthermore, in the air-conditioning system, the current direction of the electric heating device is affected by the switch, and the position of the cold surface and the hot surface can be switched according to seasonal requirements, thereby realizing the switching of the air-conditioning cooling and heating conditions.

[0016] Furthermore, the phase-change refrigeration glass enclosure structure combines photovoltaic technology, phase-change energy storage technology and electric heating technology, using photovoltaic power generation to directly power the electric heating device, and controlling the current direction through the current switch, thereby controlling the hot and cold pole directions of the electric heating device to achieve control of the air conditioning cooling and heating conditions. The phase change material phase change heat storage and temperature maintenance function is used to maintain the surface temperature of the photovoltaic module stable and improve its power generation efficiency. According to the indoor photothermal demand, the angle and expansion method of the louver blades are controlled by the driver, and the photothermal conversion capacity differences of different nano-enhanced paraffin waxes are used to achieve coordinated control of different solar energy storage, solar power generation and indoor lighting, and achieve efficient use of solar energy.

[0017] The beneficial effects of the present invention are as follows: a new phase-change refrigeration glass enclosure structure that can provide heat and cold is provided. It has a wide range of applications and can be widely promoted and popularized in areas with hot summers and cold winters. It not only uses solar clean energy to generate electricity to meet air conditioning refrigeration and heating, but also uses phase-change material energy storage to optimize photovoltaic power generation efficiency and release heat indoors, achieving low energy consumption and zero consumption. Compared with existing photovoltaic glass windows, it has better cooling and heating effects and has higher economic value.

[0018] (1) Use photovoltaic power generation to supply semiconductor electric heating devices for cooling and heating, replacing ordinary air conditioners, with high efficiency of electric energy utilization and reduced building energy consumption. Utilize the properties of phase change energy storage to store solar energy. When the temperature drops, the phase change material releases the stored heat, raising the indoor temperature, protecting the indoor comfort, reducing energy consumption, and achieving the goal of building energy saving.

[0019] (2) Two different nanoparticle phase change materials are filled in the upper and lower layers of the louver cavity to give them different photothermal properties. By adjusting the opening and closing of different louvers, dynamic regulation of multiple functions such as maintaining photovoltaic power generation efficiency, photothermal energy storage and heat release, and blocking sunlight can be achieved.

[0020] (3) The three-layer blinds can be adjusted in position through a driving device, and the structural form can be switched according to outdoor weather conditions and indoor lighting and heat requirements, giving full play to the role of phase change materials in storing solar thermal energy and maintaining the power generation efficiency of photovoltaic blinds. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the installation position structure of the photovoltaic phase change glass window and the thermoelectric air conditioning system; Figure 2 yes Figure 1 A partial enlarged view of middle I; Figure 3 It is a schematic diagram of the three-dimensional structure of the photovoltaic phase change glass window; Figure 4 This is a side view of the photovoltaic phase change glass window. Figure 5 yes Figure 3 A partial enlarged view of H in the middle; Figure 6 It is a schematic diagram of the structure of the foldable shutter; Figure 7 is a schematic diagram of the unfolding of the foldable blinds; Figure 8 It is a control system flow chart of a phase change refrigeration glass enclosure structure.

[0022] In the figure, 1-photovoltaic phase-change glass window; 11-window frame; 111-window frame; 112-first glass; 113-second glass; 12-rotatable photovoltaic phase-change louver mechanism; 121-first drive; 122-second drive 123-second drive; 124-first swing arm; 125-second swing arm; 126-third swing arm; 127-motor; 128-foldable louver; 1281-three-layer louver; 1282-rotating shaft; 1283-second nanoparticle-enhanced paraffin; 1284-first nanoparticle-enhanced paraffin; 1285-photovoltaic panel; 2-thermoelectric air-conditioning system; 21-first fan; 22-second fan; 23-battery; 24-electric heating device; 25-switch; 26-fin radiator; 27-first ventilation duct; 28-second ventilation duct; 29-ventilation louver. DETAILED DESCRIPTION Example

[0023] Referring to the figures, a phase-change refrigeration glass enclosure structure that can provide cold and heat is shown. The glass enclosure structure includes a photovoltaic phase-change glass window 1, a thermoelectric air-conditioning system 2 and a control system. The photovoltaic phase-change glass window is installed on the wall of a building, and the thermoelectric air-conditioning system is arranged above the photovoltaic phase-change glass window.

[0024] The photovoltaic phase-change glass window consists of a window frame 11 and a rotatable photovoltaic phase-change shutter mechanism 12, and the rotatable photovoltaic phase-change shutter mechanism is arranged in the window frame; the window frame consists of a window frame 111, a first glass 112 and a second glass 113 to form a closed space. The rotatable photovoltaic phase change shutter mechanism includes a first driver 121, a second driver 122, a second driver 123, a first swing arm 124, a second swing arm 125, a third swing arm 126, a motor 127 and a plurality of foldable shutters 128, the shutters are made of tempered ultra-white glass; the foldable shutters are foldably assembled together by three layers of shutters 1281 through a rotating shaft 1282, and the ends of the shutters are further provided with rotating shafts for installation. A photovoltaic panel 1285 is provided in the cavity of the middle shutter, and the cavities of the shutters on both sides are filled with a first nanoparticle-reinforced paraffin 1284 and a second nanoparticle-reinforced paraffin 1283 respectively. The middle cavity is a 6mm thick rectangular parallelepiped, and the cavities on both sides are ladder-column-shaped with a bottom thickness of 6mm and a top thickness of 2mm. The first nanoparticle-reinforced paraffin is paraffin reinforced with aluminum oxide nanoparticles, wherein the nanoparticle concentration is 10 ppm, the nanoparticle size is 20 nm, and the paraffin melting point is 18°C; the second nanoparticle-reinforced paraffin is paraffin reinforced with copper oxide nanoparticles, wherein the nanoparticle concentration is 100 ppm, the nanoparticle size is 20 nm, and the paraffin melting point is 26°C; the end of the louver equipped with the photovoltaic panel is installed on the first swing arm, and the first swing arm is driven by the first driver; the louver filled with the first nanoparticle-reinforced paraffin is installed on the second swing arm, and the second swing arm is driven by the second driver; the louver filled with the second nanoparticle-reinforced paraffin is installed on the third swing arm, and the third swing arm is driven by the third driver; the first driver, the second driver and the second driver are driven by motors and control the three drivers to move up and down, wherein the first driver controls the opening angle of the louver equipped with the photovoltaic panel, and wherein the second driver and the third driver respectively control the opening and folding of the louver filled with the first nanoparticle-reinforced paraffin and the louver filled with the second nanoparticle-reinforced paraffin.

[0025] The thermoelectric air conditioning system includes a first fan 21, a second fan 22, a battery 23, an electric heating device 24 and a switch 25. The electric heating device is arranged above the photovoltaic phase change glass window. A finned heat sink 26 is arranged outside the electric heating device. The finned heat sink is made of copper with high thermal conductivity. The first fan and the second fan are arranged in the first ventilation duct 27 and the second ventilation duct 28 above and below the electric heating device, respectively. Ventilation shutters 29 are arranged on both sides of the first ventilation duct and the second ventilation duct, respectively. The electric heating device is powered by the photovoltaic panel, and the switch is used to control the direction of the current. The electric heating device is made of high-performance bismuth telluride semiconductor material, connected to the photovoltaic panel through wires, and a switch for controlling the direction of the current is arranged on the wires. Finned heat sinks are welded on both sides of the semiconductor, and air exchanges heat with the cold surface and the hot surface of the finned heat sink, respectively. The first fan and the second fan are respectively installed at the ends of the ventilation duct, and the air inlet and outlet of the ventilation duct are provided with ventilation shutters to prevent mosquitoes and dust from entering.

[0026] The control system includes a controller, an outdoor temperature sensor, an indoor temperature sensor and a magneto-optical effect sensor; the outdoor temperature sensor is arranged on the outdoor wall around the air inlet of the second ventilation duct to collect the outdoor temperature; the indoor temperature sensor is arranged on the indoor wall around the air inlet of the first ventilation duct to collect the indoor temperature; the magneto-optical effect sensor is arranged outdoors to detect the outdoor light intensity; the controller is electrically connected to the outdoor temperature sensor, the indoor temperature sensor, the magneto-optical effect sensor and the motor respectively. The control system controls the inclination angle of the blinds, the thermistor of the temperature sensor converts the temperature signal into an electrical signal, the magneto-optical effect sensor obtains the digital light intensity by using the polarization state of light, and when the indoor temperature detected by the indoor temperature sensor is lower than or higher than the preset temperature value, and the light intensity detected by the magneto-optical effect sensor is lower than or higher than the preset light intensity value, the controller outputs a weak electric signal to control the motor to rotate and the driver to work.

[0027] Under cooling conditions, the current direction control switch controls the electric heating device to heat above and cool below, the first fan in the first channel exhausts air to the outside, and the second fan in the second channel supplies fresh air pre-cooled by the electric heating device to the room. Under heating conditions, the current direction control switch controls the electric heating device to heat below and cool above, the first fan in the first channel exhausts air to the outside, and the second fan in the second channel supplies fresh air pre-heated by the electric heating device to the room. The three-layer louvers change their angles and deployment modes under the control of the drive device according to the intensity of solar radiation and the indoor light and heat demand: when the solar radiation is strong, the third driver controls the louver layer sealed with CuO nanoparticles enhanced paraffin to unfold. The CuO nanoparticles enhanced paraffin with a high absorption coefficient absorbs solar radiation and stores energy, and its low transmittance effectively prevents indoor glare. At this time, the louver layer sealed with Al2O3 nanoparticles enhanced paraffin is closely attached to the photovoltaic louver under the control of the second driver, absorbing the heat on the surface of the photovoltaic module, and using latent heat to maintain the surface temperature of the photovoltaic module stable, thereby improving its power generation efficiency. When the solar radiation intensity is not enough to cause glare, the louver layer sealed with Al2O3 nanoparticles enhanced paraffin is unfolded under the control of the second driver, and the high transmittance of Al2O3 nanoparticles enhanced paraffin is used to maintain the indoor lighting needs. The third driver controls the louver layer sealed with CuO nanoparticles enhanced paraffin to be recovered, so that it is close to the photovoltaic louver layer to maintain the photovoltaic power generation efficiency. When the solar radiation is very low or there is no solar radiation, the louver layer sealed with nanoparticles enhanced paraffin is recovered and folded on the rear side of the photovoltaic louver, and the photovoltaic louver is rotated to a horizontal position under the control of the first driver to avoid affecting the indoor lighting. The first, second, and third drivers are independent of each other, connected by control lines, control boxes, and control panels, and adopt a master-slave control method containing a phase shift control link. The master control system controls the first driver, and the slave control system controls the second and third drivers to jointly control the inclination angle of the louver.

[0028] In the control system, the indoor temperature sensor is located at the air inlet of the first channel on the indoor wall, and the outdoor temperature sensor is located at the air inlet of the second channel on the outdoor wall, respectively monitoring the indoor temperature T in and outdoor temperature T out , the temperature signal is transmitted every half an hour, when |T in -T out When ∣<7℃, the indoor light and heat environment is good and there is no need to turn on this device; when ∣T in -T outWhen ∣>7℃, the thermistor of the temperature sensor converts the temperature signal into an electrical signal. The main control system receives the electrical signal to control the motor to start. The first driver drives the photovoltaic blinds to rotate under the drive of the motor, and the first nano blinds and the second nano blinds follow the photovoltaic blinds to rotate; the magneto-optical effect sensor is located at the outdoor upper window frame, monitors the outdoor solar radiation illuminance L, and uses the polarization state of light to obtain the digital light intensity. The solar radiation illuminance when the solar radiation intensity is not enough to cause glare is set to L1, and the solar radiation illuminance when the solar radiation intensity is very low or there is no solar radiation is set to L2. When the outdoor solar radiation illuminance L>L1, continue to issue commands, enter the slave control system, receive the electrical signal from the magneto-optical effect sensor, and then the third driver drives the second nano blinds to unfold and receive solar radiation. The first nano blinds are close to the photovoltaic blinds. When the outdoor solar radiation illuminance L1>L>L2, continue to issue commands. At this time, the second driver drives the first nano blinds to unfold and the second nano blinds are close to the photovoltaic blinds. When the outdoor solar radiation illuminance L< At L2, the main control system command continues, the first driver drives the photovoltaic louver to rotate to a horizontal position, and the first nano louver and the second nano louver rotate with the photovoltaic louver.

[0029] When the solar radiation is strong, the louvers filled with the second nanoparticle enhanced paraffin are unfolded, and the louvers filled with the first nanoparticle enhanced paraffin are close to the photovoltaic louvers. When the solar radiation intensity is not strong enough to cause glare, the louvers filled with the first nanoparticle enhanced paraffin are unfolded, and the louvers filled with the second nanoparticle enhanced paraffin are close to the photovoltaic louvers. When there is no or very low solar radiation, the louvers filled with nanoparticle enhanced paraffin are close to the photovoltaic louvers. The electricity from the photovoltaic louvers is used to drive the air conditioning device to operate, and the conversion of fresh air cooling and heating is realized through the electric heating device of the air conditioning system. Photovoltaic louvers with added phase change layers realize the coordinated use of solar energy and heat, effectively reducing building energy consumption and improving solar energy utilization.

[0030] Based on the above ideal embodiments of the present invention, the relevant staff can make various changes and modifications without departing from the technical concept of the present invention through the above description. The technical scope of the present invention is not limited to the contents of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A phase-change refrigeration glass enclosure structure capable of providing heat and cold, characterized in that: The glass enclosure structure comprises a photovoltaic phase-change glass window (1), a thermoelectric air conditioning system (2) and a control system, wherein the photovoltaic phase-change glass window (1) is installed on the wall of a building, and the thermoelectric air conditioning system (2) is arranged above the photovoltaic phase-change glass window (1); The photovoltaic phase-change glass window (1) is composed of a window frame (11) and a rotatable photovoltaic phase-change shutter mechanism (12), wherein the rotatable photovoltaic phase-change shutter mechanism (12) is arranged in the window frame (11); the window frame (11) is composed of a window frame (111), a first glass (112) and a second glass (113) to form a closed space; The rotatable photovoltaic phase-change shutter mechanism (12) comprises a first driver (121), a second driver (122), a third driver (123), a first swing arm (124), a second swing arm (125), a third swing arm (126), a motor (127), and a plurality of foldable shutters (128); the foldable shutters (128) are composed of three layers of shutters (1281) assembled together in a foldable manner via a rotating shaft (1282); the ends of the shutters (1281) are further provided with a rotating shaft (1282) for installation; a photovoltaic panel (1285) is provided in the chamber of the middle shutter (1281); the chambers of the shutters (1281) on both sides are respectively filled with a first nanoparticle-enhanced paraffin wax (1284) and a second nanoparticle-enhanced paraffin wax (1283); the ends of the shutters (1281) equipped with the photovoltaic panels are installed on the first swing arm (124). The first swing arm (124) is driven by a first driver (121); the shutter (1281) filled with a first nanoparticle-enhanced paraffin wax (1284) is mounted on a second swing arm (125), and the second swing arm (125) is driven by a second driver (122); the shutter (1281) filled with a second nanoparticle-enhanced paraffin wax (1283) is mounted on a third swing arm (126), and the third swing arm (126) is driven by a third driver (123); the first driver (121) , a first driver (122) and a second driver (123) drive and control the three drivers to move up and down through a motor (127), wherein the first driver (121) controls the opening angle of a louver (1281) equipped with a photovoltaic panel (1285), and wherein the second driver (122) and the third driver (123) respectively control the opening and folding of the louver (1281) filled with the first nanoparticle-enhanced paraffin (1284) and the louver filled with the second nanoparticle-enhanced paraffin (1283); The thermoelectric air conditioning system (2) comprises a first fan (21), a second fan (22), a battery (23), an electric heating device (24) and a switch (25); the electric heating device (24) is arranged above the photovoltaic phase-change glass window (1); a fin heat sink (26) is arranged outside the electric heating device (24); the first fan (21) and the second fan (22) are arranged in a first ventilation duct (27) and a second ventilation duct (28) above and below the electric heating device (24), respectively; ventilation louvers (29) are arranged on both sides of the first ventilation duct (27) and the second ventilation duct (28); the electric heating device (24) is powered by a photovoltaic panel (1285); and the switch (25) is used to control the direction of current; The control system comprises a controller, an outdoor temperature sensor, an indoor temperature sensor and a magneto-optical effect sensor; the outdoor temperature sensor is arranged on an outdoor wall around the air inlet of the second ventilation duct (28) for collecting the outdoor temperature; the indoor temperature sensor is arranged on an indoor wall around the air inlet of the first ventilation duct (27) for collecting the indoor temperature; the magneto-optical effect sensor is arranged outdoors for detecting the outdoor light intensity; the controller is electrically connected to the outdoor temperature sensor, the indoor temperature sensor, the magneto-optical effect sensor and the motor (127) respectively.

2. The phase-change refrigeration glass enclosure structure capable of providing heat and cold according to claim 1, characterized in that: The louver (1281) is made of tempered ultra-clear glass.

3. The phase-change refrigeration glass enclosure structure capable of providing heat and cold according to claim 1, characterized in that: The fin heat sink (26) is made of copper with high thermal conductivity.

4. The phase-change refrigeration glass enclosure structure capable of providing heat and cold according to claim 1, characterized in that: The first nanoparticle-enhanced paraffin wax (1284) is paraffin wax enhanced by aluminum oxide nanoparticles, wherein the nanoparticle concentration is 10 ppm, the nanoparticle size is 20 nm, and the paraffin wax melting point is 18°C.

5. The phase-change refrigeration glass enclosure structure capable of providing heat and cold according to claim 1, characterized in that: The second nanoparticle-reinforced paraffin (1283) is paraffin reinforced with copper oxide nanoparticles, wherein the nanoparticle concentration is 100 ppm, the nanoparticle size is 20 nm, and the paraffin melting point is 26°C.

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