Abstract: A wearable electronic device includes a radiative cooling interface for facilitating cooling of a wearable electronic device. The radiative cooling interface is flexible and is made at least partly of a radiative cooling material that includes a polymeric matrix and one or more materials dispersed in the polymeric matrix. The radiative cooling material is operable to facilitate reflection of solar radiation in at least some solar spectrum wavelengths, when the radiative cooling material is exposed to solar radiation. The radiative cooling material is also operable to facilitate emission of thermal radiation in at least some infrared spectrum wavelengths.

Abstract: Described herein is an ejector and a refrigeration system. The ejector includes: a housing; a nozzle; a first retainer fixed in the nozzle; a needle valve that is provided in the nozzle and includes a first end, a second end, and a threaded section. The threaded section is engaged with the first retainer, and the first end being movable to adjust an opening degree of the nozzle outlet; and a first magnetic rotation mechanism including a first outer ring and a first inner ring. An inner surface of the first outer ring and an outer surface of the first inner ring is spaced from and opposed to each other and correspondingly provided with a plurality of groups of magnets having opposite magnetic properties respectively.

Abstract: The invention relates to a thermal management system for a hybrid or electric vehicle, including an air conditioning circuit including a two-fluid heat exchanger arranged jointly on a heat transfer fluid circuit, the heat transfer fluid circuit including: a first branch including a first pump, a heat transfer fluid heating device and the two-fluid heat exchanger, a second branch connected directly to the first branch. The heat transfer fluid circuit is configured such that, in a mode of heating the internal air flow, all of the heat transfer fluid passing through the heating device then passes through the two-fluid heat exchanger before returning to the first pump via the second branch.

Abstract: This application provides a heat exchange device and a heat exchange system. The heat exchange device has a first heat exchange mode, and includes a housing, a partition plate, an evaporator, and a compressor. The partition plate divides space inside the housing into an internal circulation cavity and an external circulation cavity. The evaporator and the compressor are located in the internal circulation cavity. A first valve group is disposed between an inlet of the compressor and an outlet of the evaporator. When the first heat exchange mode is used for heat exchange, the evaporator is communicated with the compressor by using the first valve group. In this application, the compressor is disposed in the internal circulation cavity, so that a temperature difference between the compressor and the evaporator is small, thereby reducing a slugging risk of the compressor.

Abstract: This disclosure includes ice packs that include paper and absorbent material, and also includes various methods of adding liquid to, freezing, shipping, and/or using such ice packs. Some of the ice packs of this disclosure have a body that includes first and second layers of paper and one or more side panels coupled thereto such that the body is expandable. The absorbent material of some of the ice packs of this disclosure includes a laminate having an inner layer of superabsorbent polymer disposed between first and second outer layers, where the first outer layer includes tissue and the second outer layer includes at least one of a tissue and a carded nonwoven.

Abstract: A heating, ventilation, and/or air conditioning (HVAC) system includes a refrigerant circuit configured to circulate a refrigerant to condition an air flow within an air flow conduit and a reheat system fluidly separate from the refrigerant circuit, wherein the reheat system is configured to utilize a waste fluid from a waste heat source to reheat the air flow conditioned by the refrigerant circuit.

Abstract: A thermal management system for a data center may include a thermal storage tank, a data center cooling loop, and an active stabilizer. The thermal storage tank is configured to maintain a stable operating temperature of a liquid coolant in response to variations between heat provided from the data center and a cooling demand. The thermal storage tank includes a passive stabilizer configured to absorb an amount of temperature fluctuation of the liquid coolant. The data center cooling loop is coupled to the data center and the thermal storage tank and configured to deliver heated data center coolant to the thermal storage tank and deliver cooled data center coolant to the data center. The active stabilizer is coupled to the thermal storage tank and configured to modify the liquid coolant to a modified temperature meeting a stabilization requirement.

Abstract: An air conditioner of the present disclosure includes one or more outdoor units comprising a compressor and an outdoor heat exchanger which exchanges heat between a refrigerant flowing through the compressor and external air; and a plurality of indoor units which are connected to the outdoor unit, and have an indoor heat exchanger, wherein the plurality of indoor units include a first indoor unit group and a second indoor unit group, wherein the outdoor unit and the first indoor unit group are connected by a first gas pipe and a liquid pipe, and wherein the outdoor unit and the second indoor unit group are connected by a second gas pipe and the liquid pipe.

Abstract: An apparatus includes a captured carbon dioxide input. The captured carbon dioxide input is coupled to receive captured carbon dioxide from a direct air capture system. The apparatus uses the captured carbon dioxide as a low global warming refrigerant to provide cooling functionality in automotive, commercial, and industrial applications, or other operations involving low global warming refrigerants. In various embodiments, the apparatus is a refrigeration apparatus or a heat pump apparatus. Low global warming carbon dioxide refrigerant is natural, non-toxic, non-flammable, and abundant when obtained from a direct air capture system. Moreover, carbon dioxide refrigerant has a high heat transfer coefficient and has a global warming potential (GWP) of one. Carbon dioxide refrigerant is a more sustainable and efficient coolant option than common refrigerants, such as R22, R152, R404a, and R1234yf refrigerants.

Abstract: An HVACR unit is disclosed. The HVACR unit includes a circuit having a compressor, a first heat exchanger, a second heat exchanger, and an expander. A heat exchanger assembly includes a fan and one of the first heat exchanger and the second heat exchanger, the fan being configured to draw air through the heat exchanger assembly for exchanging thermal energy with a working fluid in the circuit. The frame includes a unit support disposed on a base, the unit support being configured to laterally support the heat exchanger assembly, and the base being configured to vertically support the heat exchanger assembly. A forklift receptacle disposed in the HVACR unit, including one or more channels configured to respectively receive one or more tines of a forklift. The forklift receptacle is overlapped, in a longitudinal direction of the HVACR unit, with a center of mass of the HVACR unit.

Abstract: An apparatus is described herein for storing and transporting food and beverages, comprising a rigid housing configured to fit within a container, the housing comprising a base and a wall extending outwardly from the base, the wall having an inner layer and an outer layer defining a space therebetween, a refreezable material disposed in the space. The base is configured with a rigid protrusion having an outer dimension shaped to generally match the dimension of the inner layer of the wall of the interior space of housing in order that the rigid protrusion can be inserted within the interior space of another apparatus of the same configuration. Other products, systems and methods also are disclosed.

Abstract: A refrigeration cycle device comprises a refrigerant, a compressor that compresses the refrigerant, and a refrigerating machine oil that lubricates a sliding part of the compressor. The refrigerant includes trifluoroiodomethane. The refrigerating machine oil includes a base oil and a quinone additive. The quinone additive is at least one selected from the group consisting of 1,4-benzoquinone, 1,2-benzoquinone, 2-methyl-1,4-benzoquinone, 2-phenyl-1,4-benzoquinone, 2-tert-butyl-1,4-benzoquinone, 1,4-naphthoquinone, 1,2-naphthoquinone, 2,6-naphthoquinone, 2-hydroxy-1,4-naphthoquinone, and 1,4-anthraquinone.

Abstract: Disclosed is an electronic expansion valve. The electronic expansion valve includes: a valve housing, wherein the valve housing is provided with an accommodating cavity and a valve port, and the accommodating cavity is in communication with the valve port; a valve needle, wherein the valve needle is provided with a first end and a second end, the second end of the valve needle blocks or opens the valve port, and the valve needle includes a first guide section, a threaded section and a second guide section that are sequentially arranged; and a nut seat, wherein the nut seat is arranged in the accommodating cavity and is fixedly connected with the valve housing, a first through hole is provided on the nut seat, and the first through hole includes a first guide hole section, a threaded hole section and a second guide hole section that are sequentially arranged.

Abstract: The present disclosure provides an electronic expansion valve, which includes: a valve body having an accommodating cavity and a valve port, and the valve port communicates with the accommodating cavity; a guide sleeve, which is disposed in the accommodating cavity; a valve head, which is movably disposed in the guide sleeve and configured for blocking or opening the valve port, and a balance channel is disposed in the valve head so as to enable two ends of the valve head to be communicated; the valve head has a first end and a second end which are oppositely disposed, the first end is configured for blocking the valve port, a refrigerant medium and the first end have a first stress area S1, the refrigerant medium and the second end have a second stress area S2, and ?1.3 mm2?S1?S2?1.3 mm2.

Abstract: The present disclosure relates to a method for operating a refrigerant circuit through which a refrigerant circulates, in which heat is transferred from a first heat source to the refrigerant in a first heat pump mode, and from a second heat source to the refrigerant in a second heat pump mode. Efficiency and heating capacity are increased therewith in that heat is transferred to the refrigerant simultaneously from both the first heat source and the second heat source in a combined heat pump mode. The disclosure also relates to an air conditioning system that contains a refrigerant circuit operated in this manner.

Abstract: Provided is a portable air conditioner. The portable air conditioner includes at least a housing having an internal space, a heat exchanger provided in the internal space and heat-exchanged with external air introduced from the outside, a blower fan configured to generate a negative pressure in the internal space so that the external air is introduced, the blower fan allowing the heat-exchanged external air to move upward, a discharge port configured to guide the upwardly guided external air to the outside of the housing, an accommodation part provided inside the housing to accommodate a temperature sensor, and a communication groove configured to allow the accommodation part and the internal space of the housing to communicate with each other so that the external air moves into the internal space of the housing via the accommodation part.

Abstract: A reusable shipper container has a container body with a payload chamber for holding goods and a lid operable to access the payload chamber. The reusable shipper container also has a tablet display screen detachably coupled to the container body. The reusable shipper container also has an inner lid assembly with one or more doors selectively movable between a first position over the payload chamber to close the payload chamber, and a second position to allow access to the payload chamber. The reusable shipper container can have a display screen on an underside of the lid that can auto-display information or autoplay videos, for example, when the lid is open and/or the shipper container has arrived at its destination.

Abstract: A system for automatically cleaning and washing an ice cream machines includes a liquid container for storing raw materials; a freezing cylinder connected with the liquid container through a cleaning pathway; a water tank for storing rinse water to rinse the freezing cylinder and the cleaning pathway; a detergent tank for storing detergents to clean and wash the freezing cylinder and the cleaning pathway; a pump arranged on the cleaning pathway to selectively pump the raw material, the rinse water or the detergent; and a control panel adapted to control an on/off and cleaning.

Abstract: A portable container has a payload chamber for holding medicines, vaccines, biological samples or other medical goods and a lid operable to access the payload chamber. The portable container also has an electronic system with one or more power storage devices, circuitry that wirelessly communicates via a cell radio with a cloud-based data storage system or a remote electronic device, and an electronic display screen. The electronic system can a) automatically switch sender and recipient information on the electronic display screen to facilitate return of the portable container to the sender or b) automatically contact a parcel carrier to alert the parcel carrier that the portable container is ready for pickup.

Abstract: An improved portable mist fan and tank apparatus and method consisting of a round lid with a base receiver recess, a pump, a fan where a pump outlet is located in proximity to the fan, a base connected with the pump and the fan, the base configured to fit within and be retained by the base receiver recess and a tank with an exterior with a round top and a bottom and an interior, where the round lid is rotatably attached with the round top of the tank where the exterior bottom of the tank matches the base receiver recess and where the interior has a bottom recess where the interior bottom recess is configured to match the base such that the base fits within and is retained by the interior bottom recess.