Abstract: The present invention relates to a heat exchanger which operates by blowing atomized or sprayed water against an evaporator pipe through which a refrigerant is circulating and by forcing air to circulate through the sprayed water, and to a refrigerating installation or a refrigerator in which the heat exchanger is used. This invention is useful for the refrigeration of cakes and perishable foods, for example, because a substance being refrigerated can be refrigerated while its moisture is prevented from evaporating, since the air cooled by the invention heat exchanger contains tiny water droplets and contacts the substance being refrigerated directly.

Abstract: The present invention relates to a method of heat exchange performed by blowing atomized or sprayed water against an evaporator pipe through which a refrigerant is circulating and by forcing air to circulate through the sprayed water, on to a refrigerating installation or a refrigerator in which the cooled moist air is used. This invention is useful for the refrigeration of cakes and perishable foods, for example, because a substance being refrigerated can be refrigerated while its moisture is prevented from evaporating, since the air cooled by the invention heat method contains tiny water droplets contacts the substance being refrigerated directly.

Abstract: An apparatus in which air in a room such as sickroom, aseptic working room etc. is fed to an water-spraying cyclone to remove dusts and microbes and make air humid, and fed the resulting air to a temperature-regulating cyclone to remove water droplets and regulate a temperature as required, and then fed thus obtained temperature-regulated air to said room for circulation of the air through this system.Using this microbe-removing and air-conditioning apparatus, it is possible to obtain an air of desired temperature and humidity, and at the same time supply an air from which microbes have been completely removed and which is most appropriate for sickroom, operating room etc.

Abstract: A cold storage apparatus in which a gas in a cold storage chamber is fed to a cold water spraying cyclone to make low temperature, moisture rich gas and this gas is fed to a water droplet removing cyclone to remove water droplets and then the resultant low temperature moisture rich gas is allowed to circulate through the cold storage chamber.This cold storage apparatus enables constant low temperature moisture rich cold storage at an optional temperature, and in which apparatus a stable storage of vegetables, fruits, meats and so on can be attained without producing frost and causing drying thereof.OBJECT OF THE INVENTIONAn object of the present invention is to provide a cold storage apparatus for allowing cold storage at a low temperature in a moisture rich condition absolutely without causing freezing.Another object of the present invention is to provide a cold storage apparatus wherein perishables such as vegetables, fruits, meats and the like can be preserved for a long period at a temperature from 0.5.

Abstract: In a closed type Koji making method, gas is circulated by ventilation through a system comprising an oxygen inlet, a fan, various kinds of cyclones and a Koji making chamber. Aqueous vapor or steam is blown directly into the ventilation gas and its temperature and humidity are always maintained constant. According to the Koji making steps, temperature and humidity in the Koji making chamber are adjusted to an optimum value by opening and closing a by-pass line to effect the Koji making. Until germination of Koji-mould occurs, the ventilation gas is maintained substantially free of oxygen and the density of oxygen after the germination should be maintained at a necessary minimum value.

Abstract: A method of producing soy sauce of superior quality by means of a large capacity closed-type tank in mass production and in a relatively short time, is characterized by the following steps in a soy sauce brewing method: charging soy sauce moromi into a closed large capacity tank provided with a hollow inner cylinder for circulation of moromi, adding enzyme to the system, on one hand feeding inert gas including the necessary minimum amount of oxygen, on the other hand degasing the fermentation system resulting in reduced pressure or vacuum at the top portion of the tank, removing carbon dioxide gas and thus promoting circulation and fermentation of moromi, and reutilizing the useful volatile constituent.