An object of the present invention is to allow uniform distribution of a refrigerant by a distributor. A refrigerant pipe includes a bent pipe formed in the shape of a curve and a downstream pipe connected to the downstream side of the bent pipe and formed to be linear. A distributor to distribute the refrigerant into a plurality of flow paths is connected to the downstream pipe on the downstream side. An inner wall on the inner peripheral side of the bent pipe being on the side of the curvature center of the curve is a grooved surface with a groove formed therein, and an inner wall on the outer peripheral side of the bent pipe being on the side opposite to the curvature center of the curve is a smooth surface.

An object of the present invention is to allow uniform distribution of a refrigerant by a distributor. A refrigerant pipe includes a bent pipe formed in the shape of a curve and a downstream pipe connected to the downstream side of the bent pipe and formed to be linear. A distributor to distribute the refrigerant into a plurality of flow paths is connected to the downstream pipe on the downstream side. An inner wall on the inner peripheral side of the bent pipe being on the side of the curvature center of the curve is a grooved surface with a groove formed therein, and an inner wall on the outer peripheral side of the bent pipe being on the side opposite to the curvature center of the curve is a smooth surface.

A duct-type air conditioning system includes a plurality of dampers in a plurality of duct bifurcation areas, which are corresponding to a plurality air-conditioned spaces supplied with conditioned air from an air conditioner, to bring an air trunk in each of the duct bifurcation areas into an opened or closed state individually, a plurality of outlets and a control device. The control device includes a controlled air-volume calculation unit of an indoor unit, based on an opening ratio, which is a ratio of the sum of numbers or areas of opened outlets provided in the duct having the damper in an opened state with respect to the sum of numbers or areas of the outlets provided in the air-conditioned spaces, and a temperature difference between a target temperature and a temperature measured in the air-conditioned spaces where the opened outlet is present, when the air conditioner performs automatic air volume adjustment.

A duct-type air conditioning system includes a plurality of dampers in a plurality of duct bifurcation areas, which are corresponding to a plurality air-conditioned spaces supplied with conditioned air from an air conditioner, to bring an air trunk in each of the duct bifurcation areas into an opened or closed state individually, a plurality of outlets and a control device. The control device includes a controlled air-volume calculation unit of an indoor unit, based on an opening ratio, which is a ratio of the sum of numbers or areas of opened outlets provided in the duct having the damper in an opened state with respect to the sum of numbers or areas of the outlets provided in the air-conditioned spaces, and a temperature difference between a target temperature and a temperature measured in the air-conditioned spaces where the opened outlet is present, when the air conditioner performs automatic air volume adjustment.

A floor-positioned air-conditioning apparatus including a housing including a fan and a heat exchanger; a forward blowing control member rotatably arranged at a forward air outlet formed in a housing front surface at a position near a housing top surface; and an upward blowing control member rotatably arranged at an upward air outlet formed near the housing front surface are included. The forward blowing control member closes the forward air outlet and the upward blowing control member closes the upward air outlet during operation stop. The forward blowing control member closes the forward air outlet and the upward blowing control member is rotated and opens the upward air outlet during cooling operation. The upward blowing control member closes the upward air outlet and the forward blowing control member is rotated and opens the forward air outlet during heating operation.

A floor-positioned air-conditioning apparatus including a housing including a fan and a heat exchanger; a forward blowing control member rotatably arranged at a forward air outlet formed in a housing front surface at a position near a housing top surface; and an upward blowing control member rotatably arranged at an upward air outlet formed near the housing front surface are included. The forward blowing control member closes the forward air outlet and the upward blowing control member closes the upward air outlet during operation stop. The forward blowing control member closes the forward air outlet and the upward blowing control member is rotated and opens the upward air outlet during cooling operation. The upward blowing control member closes the upward air outlet and the forward blowing control member is rotated and opens the forward air outlet during heating operation.

A dehumidifying system includes an enclosure having at least one opening disposed at a first end and at least one opening disposed at a second end. A plurality of air paths that extend through the enclosure and are separated from one another by partitions along at least a portion of the enclosure. A dehumidifier evaporator is disposed within the enclosure and configured such that at least one of the air paths is disposed to flow through the dehumidifier evaporator. The dehumidifier evaporator includes a dehumidifying coil and a heat pipe assembly at least partially wrapping around the dehumidification coil.

A network of wireless remote climate sensors in a heating, ventilation, and air conditioning (HVAC) system permits the creation of personalized microclimates within an enclosed space. In addition to collecting temperature and humidity data, the wireless remote climate sensors can detect whether the enclosed space is occupied by a human. Human detection is made possible by optional cameras, microphones, and gas sensors on the wireless remote climate sensors. As the human moves throughout the enclosed space, the HVAC system is able to track the human's movement using the wireless remote climate sensors. The HVAC system may adjust airflow to different portions of the enclosed space based on the human's location. The result is an efficient use of system resources to keep users at their ideal temperature.

Described herein is an air handling unit for use in an integrated data center that provides for efficient cooling, wherein the air handling unit includes one or more uninterruptable cooling fans each with a weighted rotor for providing uninterrupted cooling during a power outage until back-up generators come on-line, and a method of using the same. The uninterruptable cooling fan rotors are configured to store sufficient energy as rotational kinetic energy. Furthermore, the uninterruptable cooling fans may also be configured for generation of electricity to power a control system associated therewith during a power outage until back-up generators come on-line.

An ionic liquid desiccant system utilizes an ionic liquid desiccant to draw moisture from a working fluid, such as air that flow into an enclosure, such as a home. The desiccant may be mixed with the working fluid or a separator that allows moisture transport therethrough may be configured between the ionic liquid desiccant and the working fluid. The ionic liquid desiccant system may be part of an air conditioning system and may remove the moisture from air that is cooled by flowing over an evaporator or heat exchanger coupled with the evaporator. The ionic liquid desiccant may be pumped from a desiccant chamber to a regenerator chamber to remove absorbed moisture. A dual-purpose chamber may act as a desiccant chamber and as a regenerator chamber. A refrigeration system may have an electrochemical compressor and may utilize metal hydride heat exchangers.