Daikin Industries, Ltd.

Daisuke Karube

Shun Ohkubo

Mitsushi Itano

Kazuhiro Takahashi

Yuzo Komatsu

Tatsuya Takakuwa

Yuuki Yotsumoto

Takehiro Chaki

Eiji Kumakura

Atsushi Yoshimi

Takuro Yamada

Ikuhiro Iwata

Tetsushi Tsuda

Masayuki Kishimoto

Masami Nishiumi

Takeo Abe

Yumi Toda

Takashi Shibanuma

Tatsumi Tsuchiya

Yasufu Yamada

Masaru Tanaka

Hitomi Kuroki

Kenji Gobou

Tomoyuki Gotou

Satoshi Tokuno

Akihito Mizuno

Keisuke Ohtsuka

Yuuichi Yanagi

Satoshi Ohishi

Atsushi Okamoto

Yoshinari Asano

Kazuhiro Furusho

Osamu Yamamoto

Atsushi Suzuki

Keiji Aota

Takashi Usui

Tatsuya Ohtsuka

Masatoshi Nose

Yoshihiro Yamamoto

Akinari Sugiyama

Yoshichika Kuroki

Masashi Arai

Tsubasa Nakaue

Michiaki Okada

Masanori Ukibune

Tatsuya Otsuka

Keiko Washino

Asako Yoshiyama

Hitoshi Motoyama

Yoshikazu Nakao

Shintaro Ogata

Shinichi Fujinaka

Yuuko Tsutsui

Provided is a novel low-GWP mixed refrigerant. A composition comprising a refrigerant, the refrigerant comprising 1,1-difluoroethylene (HFO-1132a) and difluoromethane (R32), wherein HFO-1132a is present in an amount of 26 to 40 mass % based on the total of HFO-1132a and R32, and R32 is present in an amount of 60 to 74 mass % based on the total of HFO-1132a and R32.

Composition containing refrigerant, use of same, refrigerator having same, and method for operating said refrigerator

The present invention addresses a problem of providing a mixed refrigerant that combines three kinds of performances of having a refrigeration capacity (this may also be referred to as a cooling capacity) and of having a coefficient of performance (COP) equivalent to those of R410A, and of having a sufficiently small GWP. As a means for solving the problem, provided is a refrigerant-containing composition, wherein the refrigerant contains trans-1,2-difluoroethylene (HFO-1132 (E)), trifluoroethylene (HFO-1123) and 2,3,3,3-tetrafluoro-1-propene (R1234yf), and R32.

Refrigerant-containing composition, use of same, refrigerator having same, operation method for said refrigerator, and refrigeration cycle device equipped with same

In an air conditioner that uses a refrigerant mixture containing at least 1,2-difluoroethylene, high efficiency is achieved. In the air conditioner (), a compressor () can be driven without interposing a power conversion device between an AC power source () and a motor (). Thus, it is possible to provide the air conditioner () that is environmentally friendly and has a relatively inexpensive configuration.

Air conditioner

An object is to provide a novel low-GWP mixed refrigerant. A solution to the problem is to provide a composition containing a refrigerant that contains trans-1,2-difluoroethylene (HFO-1132(E)) and 1,3,3,3-tetrafluoropropene (R1234ze).

Composition including refrigerant, use therefor, refrigerator comprising same, and method for operating said refrigerator

An object is to provide a novel low-GWP mixed refrigerant. Provided as a means for a solution is a composition comprising a refrigerant, the refrigerant comprising trans-1,2-difluoroethylene (HFO-1132(E)) and difluoromethane (R32), wherein HFO-1132(E) is present in an amount of 25 to 27 mass % based on the total of HFO-1132(E) and R32, and R32 is present in an amount of 73 to 75 mass % based on the total of HFO-1132(E) and R32.

Composition containing refrigerant, use of same, freezer having same, and method for operating said freezer

An object is to provide a novel low-GWP mixed refrigerant. Provided as a means for a solution is a composition comprising a refrigerant, the refrigerant comprising trans-1,2-difluoroethylene (HFO-1132(E)), difluoromethane (R32), 1,3,3,3-tetrafluoropropene (R1234ze), and carbon dioxide.

A warm-water generating apparatus () uses, as a refrigerant, a mixed refrigerant containing at least 1,2-difluoroethylene (HFO-1132(E)). The warm-water generating apparatus () includes a compressor (), a heat-source-side air heat exchanger (), an expansion valve (), and a use-side water heat exchanger (). The water heat exchanger () causes the mixed refrigerant flowing therein and first water to exchange heat with each other to heat the first water.

Warm-water generating apparatus

Provided is a novel, low-GWP mixed refrigerant. A composition contains a refrigerant that contains trans-1,2-difluoroethylene (HFO-1132(E)), trifluoroethylene (HFO-1123), and 1,3,3,3-tetrafluoropropene (R1234ze).

Composition containing refrigerant, use of same, refrigerator comprising same, and method for operating said refrigerator

An object of the present disclosure is to provide a novel low-GWP mixed refrigerant. To solve this problem, the present disclosure provides a composition comprising a refrigerant, the refrigerant comprising trans-1,2-difluoroethylene (HFO-1132 (E)), trifluoroethylene (HFO-1123), 1,3,3,3-tetrafluoropropene (R1234ze), and difluoromethane (R32).

A composition containing 1,2-dichloro-3,3,3-trifluoropropene (HCFO-1223xd) and a fluorine-based oil.

Composition containing 1,2-dichloro-3,3,3-trifluoropropene

No studies have been made regarding what kinds of refrigerants should be used in a refrigeration cycle device for a vehicle. An air conditioner () for a vehicle includes a refrigerant circuit () and a refrigerant that is sealed in the refrigerant circuit (). The refrigerant circuit () includes a compressor (), a first heat exchanger (), which serves as a heat dissipater in a dehumidifying heating mode, an outside-air heat exchanger (), a cooling control valve (), and a second heat exchanger (), which serves as an evaporator in the dehumidifying heating mode. The refrigerant is a refrigerant having a low GWP.

Refrigeration cycle device for vehicle

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

Refrigerant cycle apparatus

A two-stage refrigeration apparatus () includes a first cycle () and a second cycle (). The first cycle () includes a first compressor (), a first condenser (), a first expansion mechanism (), and a first evaporator () that are arranged in such a manner as to be connected to the first cycle. A first refrigerant circulates through the first cycle. The second cycle () includes a second downstream-side condenser () and a second evaporator () that are arranged in such a manner as to be connected to the second cycle. A second refrigerant circulates through the second cycle. The first evaporator () and the second downstream-side condenser () constitute a cascade condenser (). In the cascade condenser (), heat is exchanged between the first refrigerant and the second refrigerant. At least one of the first refrigerant and the second refrigerant is a refrigerant mixture containing at least 1,2-difluoroethylene (HFO-1132(E)).

Refrigeration apparatus

A refrigeration cycle apparatus () includes a refrigerant circuit () including a compressor (), a heat source-side heat exchanger (), an expansion mechanism (), and a usage-side heat exchanger (). In the refrigerant circuit (), a refrigerant containing at least 1,2-difluoroethylene (HFO-1132 (E)) is sealed. At least during a predetermined operation, in at least one of the heat source-side heat exchanger () and the usage-side heat exchanger (), a flow of the refrigerant and a flow of a heating medium that exchanges heating with the refrigerant are counter flows.

Refrigeration cycle apparatus

An object is to provide a mixed refrigerant having three types of performance, i.e., a refrigerating capacity that is equivalent to that of R410A, a sufficiently low GWP, and a lower flammability (Class 2L) according to the ASHRAE standard. Provided is a composition comprising a refrigerant, the refrigerant comprising trans-1,2-difluoroethylene (HFO-1132(E)), difluoromethane (R32), and 2,3,3,3-tetrafluoro-1-propene (R1234yf), wherein when the mass % of HFO-1132(E), R32, and R1234yf based on their sum in the refrigerant is respectively represented by x, y, and z, coordinates (x,y,z) in a ternary composition diagram in which the sum of HFO-1132(E), R32, and R1234yf is 100 mass % are within the range of a figure surrounded by line segments AC, CF, FD, and DA that connect the following 4 points: point A (71.1, 0.0, 28.9), point C (36.5, 18.2, 45.3), point F (47.6, 18.3, 34.1), and point D (72.0, 0.0, 28.0), or on these line segments; the line segment AC is represented by coordinates (0.0181y&#x2212;2.2288y+71.096, y, &#x2212;0.0181y+1.2288y+28.904); the line segment FD is represented by coordinates (0.02y&#x2212;1.7y+72, y, &#x2212;0.02y+0.7y+28); and the line segments CF and DA are straight lines.

Composition containing refrigerant, use of said composition, refrigerator having said composition, and method for operating said refrigerator

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Osaka, Japan

Daisuke Karube