Abstract: A system for cooling residential or commercial refrigerators, freezers, ULT freezers, and air conditioners is disclosed using liquified gas as the refrigerant. The system has no HCFCs or CFCs. The system is completely non-polluting and returns the refrigerant air to the environment in a cleaner state than the input air. The system is totally green, obtaining all energy from an array of solar panels and may be operated independently and remotely from all other energy sources. The refrigerant may be liquid air or liquid nitrogen. The system may also operate on-the-grid for power.

Abstract: 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; and housing the payload bay in an enclosure with an angled side below one or more cryogenic tanks to fit the airplane.

Abstract: 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; and housing the payload bay in an enclosure with an angled side below one or more cryogenic tanks to fit the airplane.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: A transportation system includes a truck chassis with a battery supplying power to electric motors for rotating wheels coupled to the chassis; a cooled chamber having a heat exchanger expelling an exhaust gas therefrom; a power generator coupled to the heat exchanger to use the exhaust gas to generate electricity; and a power module carried by truck chassis and for during normal operation, and selectively powering said active refrigeration device with at least one of said battery and said motor.