A refrigeration cycle apparatus (1) is capable of performing a refrigeration cycle using a small-GWP refrigerant. The refrigeration cycle apparatus (1) includes a refrigerant circuit (10) and a refrigerant enclosed in the refrigerant circuit (10). The refrigerant circuit includes a compressor (21), a condenser (23), a decompressing section (24), and an evaporator (31). The refrigerant contains at least 1,2-difluoroethylene.

Air-cooled module for an air-cooled refrigeration cycle apparatus, comprising a desuperheater and condenser heat exchanger configured for being fluidly connected to compressor means of the air-cooled refrigeration cycle apparatus and a subcooler configured for being fluidly connected to expansion means of the air-cooled refrigeration cycle apparatus, both the desuperheater and condenser heat exchanger and the subcooler being configured to allow the passage of a refrigerant fluid inside themselves for cooling the refrigerant fluid thanks to an air flow directed to pass through these latter, the subcooler being fluidically in series downstream and physically separated with respect to the desuperheater and condenser heat exchanger, these latter elements being positioned relatively so the air flow passes before in the subcooler and then in the desuperheater and condenser heat exchanger.

Provided is an outdoor unit for an air-conditioning apparatus having high reliability. A protective net disposed over an air inlet at a rear surface of a casing includes a frame body defining an outer periphery of the protective net, and a plurality of vertical bars and a plurality of horizontal bars crossing each other inside the frame body and defining a plurality of ventilation openings. Each horizontal bar has an upper surface having a downwardly open V-shape in vertical cross-section formed by combining a rear upper surface inclined downward and rearward and a front upper surfaced inclined downward and forward. When it snows, snow on the horizontal bar slides off a downward slope without freezing into ice on the horizontal bar. Accordingly, a reduction in an opening area of the ventilation openings due to ice does not occur.

Provided is an outdoor unit for an air-conditioning apparatus having high reliability. A protective net disposed over an air inlet at a rear surface of a casing includes a frame body defining an outer periphery of the protective net, and a plurality of vertical bars and a plurality of horizontal bars crossing each other inside the frame body and defining a plurality of ventilation openings. Each horizontal bar has an upper surface having a downwardly open V-shape in vertical cross-section formed by combining a rear upper surface inclined downward and rearward and a front upper surfaced inclined downward and forward. When it snows, snow on the horizontal bar slides off a downward slope without freezing into ice on the horizontal bar. Accordingly, a reduction in an opening area of the ventilation openings due to ice does not occur.

A refrigeration cycle apparatus (1) is capable of performing a refrigeration cycle using a small-GWP refrigerant. The refrigeration cycle apparatus (1) includes a refrigerant circuit (10) and a refrigerant enclosed in the refrigerant circuit (10). The refrigerant circuit includes a compressor (21), a condenser (23), a decompressing section (24), and an evaporator (31). The refrigerant contains at least 1,2-difluoroethylene.

A refrigeration cycle apparatus (1) is capable of performing a refrigeration cycle using a small-GWP refrigerant. The refrigeration cycle apparatus (1) includes a refrigerant circuit (10) and a refrigerant enclosed in the refrigerant circuit (10). The refrigerant circuit includes a compressor (21), a condenser (23), a decompressing section (24), and an evaporator (31). The refrigerant contains at least 1,2-difluoroethylene.

The present invention relates to an air-cooled condenser apparatus for condensing a steam flow exiting a turbine from for example a power plant. The air-cooled condenser apparatus comprises a series of condenser modules, each module having a series of compact delta-type heat exchanger units and a series of fans. The air-cooled condenser apparatus further comprises a series of independent frame structures FRS(m) wherein the number of frame structures has a lower limit depending on the number of modules. The invention further relates to a method for manufacturing an air-cooled condenser apparatus comprising steps of manufacturing the delta-type heat exchanger units in the factory, placing the units in a container for transportation and erecting the air-cooled condenser apparatus at a site of installation.

Heat exchange system on a roof of a building, with an exchange volume comprising a substrate that is partly saturated by water and covered by a vegetated surface that enhances condensation and evapotranspiration and having a heat diffusion device comprising a circulation pump and a collection network for thermal exchanges with the exchange volume.

Heat exchange system on a roof of a building, with an exchange volume comprising a substrate that is partly saturated by water and covered by a vegetated surface that enhances condensation and evapotranspiration and having a heat diffusion device comprising a circulation pump and a collection network for thermal exchanges with the exchange volume.

A refrigeration cycle apparatus includes a refrigerant circuit and refrigerant. The refrigerant is a zeotropic mixed refrigerant. At least one of the condenser and the evaporator has a first heat exchange unit located windward and a second heat exchange unit located leeward in a first direction in which air flows. Each of the first heat exchange unit and the second heat exchange unit has an inflow passage and an outflow passage for the refrigerant that are located in a plurality of stages arranged in the second direction crossing the first direction. The refrigerant flows out from the outflow passage of the second heat exchange unit into the inflow passage of the first heat exchange unit. The outflow passage of the second heat exchange unit is located in the same stage as the outflow passage of the first heat exchange unit in the second direction.