A solar powered absorption cooling system employing refrigerant-absorbent solutions such as water and lithium bromide and hybrid storage capabilities, and a method of employing the system in refrigeration and air conditioning units. The system includes a first temperature control valve and second temperature control valve that together regulate the flow of solar heating fluid into the generator and substantially reduce absorbent crystal formation.

A cooling system includes an ingress port to receive refrigerant in a vapor form from an evaporator, an egress port to return refrigerant in a liquid form back to the evaporator, a condenser coupled to the ingress port and the egress port, and a compressor coupled to the ingress port and the condenser. When the cooling system operates in a first mode, the condenser is configured to receive and condense the refrigerant from the vapor form into the liquid form and to return the refrigerant in the liquid form to the regress port. When the cooling system operates in a second mode, the compressor is configured to compress the refrigerant in the vapor form and to supply the compressed refrigerant to the condenser to be condensed therein.

A hair cooling and dehumidification apparatus is disclosed. The apparatus comprises a wearable headgear/two-part fitness cap having an inner cavity for receiving a portion of a user's head. The wearable headgear comprises a top/outer insert and a bottom/inner insert. Both inserts comprise a plurality of offsets to maintain an air space gap between them. A pouch holder is provided to secure a desiccant pouch and attached to the top insert to absorb the water vapour from user's hair. The apparatus further comprises a thermo-electric cooling system having a thermoelectric cooler. A small heat sink is attached to a cold side of the thermoelectric cooler whereas a large heat sink is attached to a hot side. Further, a blower unit is attached to the small heat sink which is connected to the cold side of the thermoelectric cooling plate, to circulate the ambient air within the housing over the cold heat sink, to cool the incoming air circulating within the housing, thereby providing cooling and dehumidification of user's hair.

The invention relates to an air conditioning apparatus including a first absorptive heat exchanger having sorption channels in at least one flow direction, a method for conditioning fluids, in particular for cooling and/or drying a stream of air, an adsorptive air-air cross-flow heat exchanger, and an outer wall element including an integrated air conditioning apparatus.

Control systems are provided that provide thermodynamically decoupled control of temperature and relative humidity and/or reduce or prevent frost formation or remove previously-formed frost. The control systems herein may be included as a component of a heating, ventilation, air conditioning, and refrigeration system that includes a heat exchanger.

Control systems are provided that provide thermodynamically decoupled control of temperature and relative humidity and/or reduce or prevent frost formation or remove previously-formed frost. The control systems herein may be included as a component of a heating, ventilation, air conditioning, and refrigeration system that includes a heat exchanger.

A climate control system is described that can include a thermal battery (100) with a heating bed (110) and cooling bed (120) and a conditioned air manifold adapted to direct heat transfer fluid across at least one of the heating bed (110) and the cooling bed (120) to condition inlet air. A method of controlling climate in an enclosure can be provided by contemporaneously generating a heating effect and a cooling effect from a reversible thermo chemical reaction and selectively directing thermal flows from a reversible thermo chemical reaction to the enclosure.

A climate-control system may include a first fluid circuit, a desiccant system, and a second fluid circuit. The first fluid circuit may include a desorber, an absorber, and an evaporator. A first fluid exits the desorber through a first outlet and flows through the evaporator and a first inlet of the absorber. A second fluid exits the desorber through a second outlet and may flow through a second inlet of the absorber. The desiccant system includes a conditioner and a regenerator. The conditioner includes a first desiccant flow path. The regenerator includes a second desiccant flow path in communication with the first desiccant flow path. The second fluid circuit circulates a third fluid that is fluidly isolated from the first and second fluids and desiccant in the desiccant system. The second fluid circuit may be in heat transfer relationships with the first fluid and the first desiccant flow path.

An absorption vacuum dehumidification system includes a vacuum section, an absorber, a desorber, a photovoltaic energy supply, a heat exchanger, a condenser, and a desiccant solution. The vacuum section has a feed side and a permeate side and comprising a hydrophilic membrane that separates the feed side than the permeate side. The absorber is connected to the permeate side of the vacuum section. The desorber is connected to the absorber to form a desiccant solution cycle path between the absorber and the desorber. The photovoltaic energy supply configured to power a heat source that provides hot liquid into the desorber. The heat exchanger is connected to the desiccant solution cycle path. The condenser is connected to the desorber. The desiccant solution flows along the desiccant solution cycle path.

A hair cooling apparatus includes a wearable headgear. The wearable headgear includes a flexible hose, securely positioned in a zigzag pattern within an interior cavity of the wearable headgear. The flexible hose is configured to circulate air within the interior cavity via a plurality of openings via a connector using a blower unit. The blower unit is securely positioned in a portable carrier and powered using one or more batteries. The blower unit is configured to supply air within the interior cavity of the wearable headgear via the flexible hose. The apparatus produces cooling to the user's hair and protects from the moisture for preserving an opted hairstyle of the user without affecting the lifestyle. The wearable headgear further comprises a moisture absorbing material, configured to effectively absorb the sweat around the user's brow, ear portions, and the neck portion.