A system and method allows boats to operate air conditioners while positioned above the water level. A dock-mounted control unit has an inlet for lake or seawater, an inlet for fresh water, and an outlet to the raised boat. The fresh water is temporarily used to prime the system, after which the boat's A/C system can operate normally. After the system is primed, a valve on the control unit is used to close off the fresh water inlet, and the fresh water hose may be removed. A Y-valve (or two 1-way valves) provides two settings, one for ordinary, on-water operation, and the other for use in conjunction with the invention. The invention allows the boat's AC system to function as though it were in the water, allowing normal heat exchange with the body of water and thus, normal A/C while on a lift or hoist.

A transport refrigeration system (TRS) for an enclosed space of a transport unit that includes a ventilation pathway to direct air to flow from the enclosed space. The TRS includes a refrigerant circuit with an evaporator configured to cool the air, and a CO.sub.2 scrubber. The CO.sub.2 scrubber includes a metal organic framework (MOF) configured to adsorb CO.sub.2 from the air in an adsorption mode and is regenerated with ambient air in a regeneration mode. A transport unit includes an enclosed space for storing produce, a ventilation pathway, and a TRS. A method of conditioning an enclosed space of a transport unit includes operating a TRS in a first mode that cools air from the enclosed space and adsorbs, with a MOF in a CO.sub.2 scrubber, CO.sub.2 from the air, and operating the TRS in a second mode that regenerates the MOF with ambient air.

A transport refrigeration system (TRS) for an enclosed space of a transport unit that includes a ventilation pathway to direct air to flow from the enclosed space. The TRS includes a refrigerant circuit with an evaporator configured to cool the air, and a CO.sub.2 scrubber. The CO.sub.2 scrubber includes a metal organic framework (MOF) configured to adsorb CO.sub.2 from the air in an adsorption mode and is regenerated with ambient air in a regeneration mode. A transport unit includes an enclosed space for storing produce, a ventilation pathway, and a TRS. A method of conditioning an enclosed space of a transport unit includes operating a TRS in a first mode that cools air from the enclosed space and adsorbs, with a MOF in a CO.sub.2 scrubber, CO.sub.2 from the air, and operating the TRS in a second mode that regenerates the MOF with ambient air.

A control apparatus for a climate control system of a boat involves at least one processor, non-transitory storage accessible by the processor, and programming which, when executed by the at least one processor will cause the at least one processor to, when a water-fed climate control unit of the boat is operating A) determine a then-current depth at a current location of the boat, B) compare the then-current depth at the current location of the boat relative to a specified minimum acceptable depth, and C) when the then-current depth at the current location of the boat is less than the specified minimum acceptable depth, cause the CCU and water pump to shut off. A corresponding method is also described.

A control apparatus for a climate control system of a boat involves at least one processor, non-transitory storage accessible by the processor, and programming which, when executed by the at least one processor will cause the at least one processor to, when a water-fed climate control unit of the boat is operating A) determine a then-current depth at a current location of the boat, B) compare the then-current depth at the current location of the boat relative to a specified minimum acceptable depth, and C) when the then-current depth at the current location of the boat is less than the specified minimum acceptable depth, cause the CCU and water pump to shut off. A corresponding method is also described.

The present invention provides an unmanned watercraft capable of sufficiently cooling equipment that generates a large amount of heat, capable of cooling such equipment without using energy in the watercraft, and capable of improving mean time between failures (MTBF) of a cooling device. An unmanned watercraft 1 has a cooling structure CS for cooling a central processing unit CPU1 for image recognition and a central processing unit CPU2 for control that constitute a central processing unit CPU as a heat-generating body. The cooling structure CS includes a waterproof container 7 that accommodates the heat-generating body (an insulating envelope that surrounds the heat-generating body in an electrically insulated state). The waterproof container 7 is arranged outside a submerged part 3 of the unmanned watercraft 1 so as to be in contact with water present outside the unmanned watercraft 1, the submerged part 3 being submerged in water.

A self-enclosed modular refrigeration unit for refrigeration system comprises compressor adapted to compress a refrigerant. A heat exchanger is connected to a cooling water network to condense the refrigerant with cooling water. A suction line is connected to a suction side of the compressor and adapted to provide a feed of refrigerant to the compressor. A discharge line is connected to a discharge side of the compressor and to the heat exchanger to direct compressed refrigerant to the heat exchanger. A head pressure control valve is in the discharge line downstream of the heat exchanger to control an upstream pressure. A casing encloses the compressor, the heat exchanger, the head pressure control valve. An outlet line has an outlet end downstream of the head pressure control valve adapted to output cooling refrigerant having passed through the head pressure control valve. An inlet end is upstream of the suction line to provide a feed of refrigerant to the compressor.

A system and method for the application and thermal curing of specialized vessel deck coatings is disclosed. A system capable of controlling environmental conditions is assembled on the deck of a vessel and utilized to control conditions within the system during application and curing of deck coatings is disclosed. A method of utilizing a system capable of controlling environmental conditions during the pretreatment, treatment and curing phases of specialized vessel deck coatings is also disclosed.

A system and method for the application and thermal curing of specialized vessel deck coatings is disclosed. A system capable of controlling environmental conditions is assembled on the deck of a vessel and utilized to control conditions within the system during application and curing of deck coatings is disclosed. A method of utilizing a system capable of controlling environmental conditions during the pretreatment, treatment and curing phases of specialized vessel deck coatings is also disclosed.

A closed-loop cooling ship propulsion apparatus includes a power device, a pump, and a coolant supply. A fluid circuit is formed in the ship propulsion apparatus and a coolant in the loop can be arranged to circulate through all heat-generating components in addition to the pump and motive power unit. A closed-loop circuit avoids the blockages and contamination which might occur if the water of a sea or lake was used directly.