Daikin Industries, Ltd.

Shotaro Mishina

Manabu Yoshimi

Kazuo Yonemoto

Ryuichi Sakamoto

Akira Kamino

Chun-cheng Piao

A cycle-side system ( ) is formed by duct connecting a compressor ( ), a heat exchanger ( ), a demoisturizer ( ), and an expansion device ( ) in that order. The compressor ( ) draws in room air and supply air for ventilation and compresses the same. The compressed air exchanges heat with exhaust air for ventilation in the heat exchanger ( ), thereby being cooled. Water vapor in the cooled, compressed air is removed in the demoisturizer ( ). The demoisturizer ( ) is provided with a separation membrane and separates water vapor in the compressed air without the occurrence of condensation. Thereafter, the compressed air is expanded in the expansion device ( ) to change into low-temperature air. The low-temperature air is supplied into a room. On the other hand, the heat exchanger ( ) is fed exhaust air cooled in a humidifying cooler ( ). Further, in the heat exchanger ( ), a latent heat of vaporization of moisture supplied by a humidifying part ( ) is also utilized for cooling of the compressed air.

Air-conditioning apparatus

A compressor ( ), a heat exchanger ( ), a demoisturizer ( ), and an expansion device ( ) are duct connected in that order to form a heat source-side system ( ). The compressor ( ) draws and compresses outdoor air and exhaust air for ventilation. The compressed air is subjected to heat exchange with air for conditioning in the heat exchanger ( ). The compressed air is demoisturized in the demoisturizer ( ). Thereafter, the compressed air is expanded in the expansion device ( ), changes to low-temperature air, and then is expelled to outside the room. On the other hand, the conditioning air is delivered, through an inlet duct ( ), to the heat exchanger ( ). The conditioning air is a mixture of supply air for ventilation and air in the room. The conditioning air is subjected to heat exchange with the compressed air in the heat exchanger ( ), whereby the conditioning air is heated. Further, the conditioning air is humidified in a humidifying part ( ). Thereafter, the conditioning air is supplied into the room for effecting room heating.

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Osaka, Japan

Shotaro Mishina