Systems and methods are disclosed for transporting products with an airplane by controlling temperature in a payload bay using cryogenic coolant and a heat exchanger to cool the payload bay and heat from a heater; recycling exhaust from the heat exchanger to power a Stirling engine; charging a storage device with power from the Stirling engine; housing the payload bay as part of a modular, stackable module in an aircraft bay for transportation; and venting exhaust gas to an exterior of the airplane.

A method of temperature control in a cryogenic temperature control apparatus. The method includes operating the cryogenic temperature control apparatus in a first mode, and delivering a first flow rate of cryogen from a storage tank to an evaporator coil in the first mode. The cryogenic temperature control apparatus is operated in a second mode after operating the cryogenic temperature control apparatus in the first mode for a predetermined time duration. A second flow rate of cryogen that is lower than the first flow rate is delivered to the evaporator coil in the second mode.

An apparatus and process for dispensing a cryogenic fluid can include an apparatus and process configured for dispensing the cryogenic fluid into a fuel tank. Embodiments can be configured for dispensing of liquid hydrogen into fuel tanks of vehicles, for example. Embodiments can be provided so no pump usage is necessary for filing the fuel tank or substantially filling the fuel tank (e.g., filling the fuel tank to a level of 90% filled or a level of 95% filled, etc.) during the dispensing. This can permit embodiments to avoid cryogenic boil off and fugitive emission losses as well as reducing power consumption, reducing maintenance costs, and permitting dispensing start-up to occur more quickly.

A system for vaporizing hydrogen for providing hydrogen in gaseous form to a plurality of hydrogen fuel cells includes: a vaporizer; a radiator configured to cool a cooling fluid in a coolant system of the plurality of hydrogen fuel cells; a spray supply system comprising: a tank; a pump configured to pump water from the tank; a nozzle system; and a condensate tray configured to collect condensate and return the condensate to the tank. The system is configured to activate the pump to pump the condensate collected in the tank to cool the radiator based on a temperature of the cooling fluid.

A flow of liquid cryogen from a liquid cryogen storage tank is vaporized at a heat exchanger against a flow of air in order to vaporize the liquid cryogen for a point of use and provide a flow of chilled air for use in refrigeration of a space, room or structure. The tank, heat exchanger, point of use, and space, room or structure are all located at a same installation.

A flow of liquid cryogen from a liquid cryogen storage tank is vaporized at a heat exchanger against a flow of air in order to vaporize the liquid cryogen for a point of use and provide a flow of chilled air for use in refrigeration of a space, room or structure. The tank, heat exchanger, point of use, and space, room or structure are all located at a same installation.

A cryogenic tank system includes a plurality of heat exchangers for heating an interior volume of a storage container. Heat transfer to the interior volume of the storage container by the plurality of heat exchangers pressurizes the interior volume of the storage container. The system further includes a valve assembly mounted to the storage container and positioned substantially within the storage container. The valve assembly includes an inlet portion and an outlet portion. The outlet portion is positioned outside of the storage container, and the inlet portion is positioned within the storage container. The inlet portion is sealable by a fail-closed powered sealing mechanism.