Provided is a means for easily producing a plurality of types of flake ice each having a different freezing point and approximately uniform solute concentration. There is provides a flake ice production device. A drum includes an inner cylinder, an outer cylinder surrounding the inner cylinder, and a clearance formed between the inner cylinder and the outer cylinder. A refrigerant supply unit supplies a refrigerant to the clearance. A rotary shaft rotates taking a central axis of the drum as an axis. An injection unit rotates together with the rotary shaft and sprays brine toward the inner peripheral surface of the inner cylinder. A scraping unit scrapes off flake ice that is generated as a result of brine having been sprayed from the injection unit becoming attached to the inner peripheral surface of the inner cylinder, which has been cooled by the refrigerant supplied to the clearance.

A method and apparatus for simulating icing conditions using a wind tunnel is provided. Water drops are sprayed from a number of nozzles into the wind tunnel. A mist of cryogenic liquid is sprayed into a path of the water drops downwind of the nozzles in the wind tunnel, wherein the mist of cryogenic liquid turns the water drops into ice crystals.

Disclosed herein are an ice maker assembly movably disposed in a storage space, and a refrigerator comprising the same are provided. An ice maker assembly disposed in a storage space of a refrigerator to form ice, the ice maker assembly includes an ice maker unit configured to form ice and a basket unit configured to store the ice formed in the ice maker unit, wherein the ice maker unit includes a frame mounted at the refrigerator, a tray mounted at the frame and having a space in which the ice is formed, a water tank tiltably mounted at the frame and configured to supply water to the tray, and water stored in the water tank is supplied to the tray when the water tank is tilted in one direction.

Provided is a cold storage unit that has a high cold storage capacity, does not generate carbon dioxide, and enables recycling of the cold source. Also provided are a moving body and an ice slurry supply system. In the cold storage unit, a casing that defines a cold storage space has a heat insulating structure, a partition wall that faces the casing is provided at least at a top portion of the cold storage space, and a gap between the casing and the partition wall is filled with an ice slurry that is a mixture of brine and flake ice acquired by freezing the brine. In addition, it is possible to provide a supply port for supplying the ice slurry into the gap and a discharge port for discharging the ice slurry from the nap.

Provided is a cold storage unit that has a high cold storage capacity, does not generate carbon dioxide, and enables recycling of the cold source. Also provided are a moving body and an ice slurry supply system. In the cold storage unit, a casing that defines a cold storage space has a heat insulating structure, a partition wall that faces the casing is provided at least at a top portion of the cold storage space, and a gap between the casing and the partition wall is filled with an ice slurry that is a mixture of brine and flake ice acquired by freezing the brine. In addition, it is possible to provide a supply port for supplying the ice slurry into the gap and a discharge port for discharging the ice slurry from the nap.

Provided is a means for more efficiently generating ice which has a high cooling capacity. A flake ice production device generates ice by cooling the wall surface of an inner cylinder and freezing brine that has adhered to the wall surface of the cooled inner cylinder. A spraying unit supplies brine to the wall surface of the inner cylinder by causing the brine to adhere thereto. A stripping unit collects the ice generated on the wall surface of the inner cylinder. In addition, the flake ice production device is designed such that formula (1) is satisfied when Y represents an ice making speed indicating the amount of ice generated on the wall surface of the inner cylinder per unit time, and x1 represents the thermal conductance rate of the wall surface of the inner cylinder. Formula (1): Y=f(x1).

Provided are: ice which has excellent cooling capacity; a production method therefor; a method for producing a cooled article; and a refrigerant. Also provided are: ice in a non-separating state; and a production method therefor.

The present invention pertains to ice which satisfies conditions (a) and (b) and is from a liquid that includes an aqueous solution comprising a solute. (a) The temperature of the ice after melting completely is less than 0? C. (b) The rate of change of the solute concentration in the aqueous solution generated from the ice in the melting process is 30% or lower.

The refrigerant of the present invention includes said ice. The refrigerant also includes water which comprises the same solute as the solute included in the ice, wherein the ratio of the concentration of the solute in the ice and the concentration of the solute in the water is preferably 75:25 to 20:80.