Abstract: A refrigeration cycle device includes a heat exchanger main body, a plurality of flow rate adjusters, and a controller. The heat exchanger main body has a plurality of refrigerant flow paths including a first refrigerant flow path and a second refrigerant flow path. The flow rate adjusters adjust flow rates of a refrigerant flowing through the refrigerant flow paths. The controller adjusts the flow rates of the refrigerant flowing through the refrigerant flow paths by controlling opening degrees of the flow rate adjusters. The controller controls the opening degrees of the flow rate adjusters based on a first value or a second value. The first value is a value representing overall efficiency of the refrigeration cycle. The second value is a value representing overall efficiency of the heat exchanger main body.

Abstract: A showcase includes a refrigerant circuit and a refrigerant enclosed in the refrigerant circuit. The refrigerant circuit includes a compressor (121), a radiator (122), an expansion valve (123), and an evaporator (124). The refrigerant is a low-GWP refrigerant.

Abstract: Composite binder materials for energy storage applications are disclosed. The composite binder materials include a fluoropolymer, such as polytetrafluoroethylene (PTFE), integrated with a conductive additive and a low-melting point thermoplastic. Methods of making the composite binder materials are also disclosed. The methods include providing an emulsion of the fluoropolymer, mixing the low-melting point thermoplastic and the particulate conductive additive into the emulsion of the fluoropolymer to form a mixture, and coagulating the mixture to produce a coagulum including the composite binder material. The disclosure also provides a binder powder for an electrochemical device capable of providing an electrode mixture sheet having excellent uniformity of tensile strength. The disclosure relates to a binder powder for an electrochemical device, containing a non-fibrillated fibrillatable resin and a thermoplastic polymer.

Abstract: A fan includes: a shaft including an outer peripheral surface that includes a first circular-arc portion, and a first flat portion; and a boss portion including a fitting hole with an inner peripheral surface that includes a second circular-arc portion, and a second flat portion. The second circular-arc portion corresponds to the first circular-arc portion. The second flat portion corresponds to the first flat portion. One or both of the first flat portion and the second flat portion includes a notch in an end portion in a width direction of the one or both of the first flat portion and the second flat portion.

Abstract: A heat exchanger includes: a first heat transfer tube; a second heat transfer tube; and a branching tube having a first end connected to an end of the first heat transfer tube, a second end connected to an end of the second heat transfer tube, and a third end, and connecting the first end, the second end, and the third end to each other. The first heat transfer tube is larger in heat exchange quantity than the second heat transfer tube. The branching tube has a first flow path connecting the first end with the third end, and a second flow path connecting the second end with the third end. The first flow path is shorter than the second flow path. The branching tube includes: a U portion; and an inflow portion having an end connected to the U portion.

Abstract: An electrolyte solution containing a compound represented by formula (1) and a compound represented, for example, by formula (11-1), the formula (1) being: wherein M101 is P or P?O; R101 is a group such as a C1-C11 alkylsilyloxy group; n101 is an oxidation number of M101 minus 1 or an oxidation number of M101 minus 3; and R102 to R104 are each individually a group such as a C1-C11 alkyl group; the formula (11-1) being: wherein R111 and R112 are the same as or different from each other and are each an atom or group such as a hydrogen atom; and R113 is a group such as an alkyl group free from a fluorine atom.

Abstract: There is provided a refrigerant charging method in which a foreign material and moisture are avoided from entering a heat source unit until a refrigeration cycle apparatus is configured. The refrigerant charging method is a method of charging a refrigerant to a refrigerant circuit in which a refrigeration cycle is to be performed by a circulating refrigerant, the refrigerant circuit being configured by connecting a second heat source unit and a utilization unit to each other. The refrigerant charging method includes charging a first refrigerant to the second heat source unit before connecting the second heat source unit to the utilization unit to configure the refrigerant circuit, and connecting the second heat source unit to the utilization unit and charging a second refrigerant that differs from the first refrigerant to the refrigerant circuit to obtain the circulating refrigerant that includes the second refrigerant and the first refrigerant that is charged in the second heat source unit.

Abstract: A refrigerant leakage detection system includes a first controller, and a second controller. The first controller uses a first method to determine the presence or absence of refrigerant leakage from the refrigerant circuit. The second controller uses a second method different from the first method to determine the presence or absence of refrigerant leakage from the refrigerant circuit. The refrigerant leakage detection system determines the presence or absence of refrigerant leakage from the refrigerant circuit on the basis of the determination result of the first controller and the determination result of the second controller. The refrigerant leakage detection system determines that there is a refrigerant leakage in the refrigerant circuit if the first controller determines that there is a refrigerant leakage from the refrigerant circuit and the second controller determines that there is a refrigerant leakage from the refrigerant circuit.

Abstract: A multistage compression system uses refrigerant and oil. The multistage compression system includes a low-stage compressor that compresses the refrigerant, a high-stage compressor that further compresses the refrigerant compressed by the low-stage compressor, and an oil return pipe that returns the oil discharged by the high-stage compressor or the oil in the high-stage compressor to the low-stage compressor. The low-stage compressor has a rotary compression part that compresses the refrigerant, a motor that drives the compression part, and a container housing the compression part and the motor. The motor is disposed above the compression part. The oil return pipe is connected to a space below the motor inside the container.

Abstract: Placement of items to be stored is proposed according to how the items to be stored in a chamber performing freezing or refrigerating are cooled. An information processing device including: a prediction section that predicts how items to be stored in a chamber performing freezing or refrigerating are cooled; and an output section that outputs proposal information on the placement of the items to be stored in the chamber performing freezing or refrigerating based on how the items to be stored in the chamber are cooled as predicted by the prediction section.

Abstract: An oil-resistant agent composition which contains (1) a hydrocarbon group-containing polymer and (2) an amphoteric polyacrylamide polymer, and which is capable of imparting paper with excellent oil resistance. The hydrocarbon group-containing polymer has (a) a repeating unit that is formed from an acrylic monomer which has a long-chain hydrocarbon group having 7 to 40 carbon atoms and (b) a repeating unit that is formed from an acrylic monomer which has a hydrophilic group. Preferably, the oil-resistant agent composition additionally contains an anionic polyacrylamide polymer. Also disclosed is an oil-resistant agent kit including a liquid containing the oi-resistant agent composition, a method for producing oil-resistant paper which includes adding the oil-resistant agent composition to a paper constituent material, pulp or pulp slurry, as well as an oil-resistant paper.

Abstract: A heat source unit includes a first switching valve configured to switch between a first state where the first switching valve brings a high and low pressure gas connection pipe and a discharge side of a compressor into communication with each other and a second state where the first switching valve brings the high and low pressure gas connection pipe and a suction side of the compressor into communication with each other; and a second switching valve configured to switch between a third state where while the second switching valve brings the discharge side of the compressor and a gas end of a first heat exchange section into communication with each other, the second switching valve brings the suction side of the compressor and a gas end of the second heat exchange section into communication with each other and a fourth state where while the second switching valve brings the discharge side of the compressor and the gas end of the second heat exchange section into communication with each other, the second swit

Abstract: A method for producing a high purity fluoropolymer-containing composition, the method including the steps of performing a fluorine radical treatment on a composition containing a fluoropolymer and a polymer (I) containing a polymerization unit (I) derived from a monomer (I) represented by the general formula (I) to obtain a high purity fluoropolymer-containing composition: CX1X3?CX2R(—CZ1Z2-A0)m??(I) wherein X1 and X3 are each independently F, Cl, H, or CF3; X2 is H, F, an alkyl group, or a fluorine-containing alkyl group; A0 is an anionic group; R is a linking group; Z1 and Z2 are each independently H, F, an alkyl group, or a fluorine-containing alkyl group; and m is an integer of 1 or more.

Abstract: Efficiency in refrigerant charging work is addressed when a recovered refrigerant recovered from a first heat source unit is to be charged to a second heat source unit. A refrigerant charging method is a charging method used when a first heat source unit of an already installed refrigeration cycle apparatus in which a refrigeration cycle is to be performed by a refrigerant that circulates is to be replaced with a second heat source unit. The refrigerant charging method includes recovering a first refrigerant from an already installed refrigeration cycle apparatus and obtaining a recovered refrigerant and charging the recovered refrigerant and charging a second refrigerant whose composition differs from the composition of the recovered refrigerant to the refrigeration cycle apparatus after renewal that includes the second heat source unit.

Abstract: An air-conditioning apparatus includes a first transmission channel, a plurality of second transmission channels different from the first transmission channel, a controller connected to the first transmission channel and not connected to the second transmission channels, a plurality of air-conditioning indoor units connected to the second transmission channels and not connected to the first transmission channel, and a plurality of air-conditioning outdoor units. The plurality of air-conditioning outdoor units electrically connect the first transmission channel and the second transmission channels, and do not transmit a short-circuit state occurring in one of the first transmission channel and the second transmission channels to a transmission channel other than the one of the first transmission channel and the second transmission channels, thereby enabling communication between devices connected to the transmission channel other than the one.

Abstract: In response to a person touching a portion indicated by reference sign 1A on a desk 91 installed in a room R, for example, a control device 60 identifies this touched area as an identified area 80 that has been contaminated by the person. In this case, the control device 60 controls a drive mechanism 30 to direct a light source 20 to this identified area 80. The area touched by the person in the room R is thus UV-irradiated and sterilized.

Abstract: Provided is a composition for electrode formation comprising a copolymer comprising vinylidene fluoride unit and a unit of an other monomer other than vinylidene fluoride, and a solvent represented by a general formula (1): NR1R2R3 wherein R1, R2, and R3 are each independently H or a monovalent substituent, provided that the total number of carbon atoms of R1, R2, and R3 is 6 or more, and at least one of R1, R2, and R3 is an organic group having carbonyl group; and any two of R1, R2, and R3 optionally bond to each other to form a ring.

Abstract: By using a model that predicts an environment where elements are arranged in a desired manner, the air environment of the subject space can be easily estimated. An information processing device includes: a storage section storing element models that are created for respective elements which affect an air environment of a space, and that predict the effect of the elements on the air environment of the space; a placement acquisition section acquiring information on the placement of the respective elements provided in a predetermined subject space; and an estimation section estimating the air environment in the subject space using the information on the placement of each of the elements acquired by the placement acquisition section and the element models, which correspond to the elements, stored in the storage section.

Abstract: [Problem] To allow a user to know a range of an adjustable environment in a predetermined space adjusted by an air conditioner and a spatial range adjustable to a predetermined environment.