An apparatus comprising: an aircraft having a power plant operable to provide thrust and propel the aircraft at a flight speed, the aircraft including a relatively high temperature device that benefits from a cooling process and a refrigeration system capable of providing a cooling to the relatively high temperature device, the refrigeration system having: a heat providing component in communication with a heat absorbing component via a working fluid that flows from the heat absorbing component to the heat providing component, the heat providing component disposed in thermal communication with a duct having a flow of heat exchange fluid, the heat absorbing component in thermal communication with the relatively high temperature device; a delivery discharge operable to emit a phase transition medium into the duct with the heat exchange fluid; and a controller operable to generate a signal to selectively cause the delivery discharge to emit the phase transition medium, wherein the signal generated by the controller is dependent upon a temperature of the heat exchange fluid in the duct; wherein the heat providing component exchanges heat with the heat exchange fluid and the phase transition medium; and wherein the heat providing component of the refrigeration system is located in a pod exposed to a flow of air that enters an opening in the pod, the flow of air forming the heat exchange fluid. an aircraft having a power plant operable to provide thrust and propel the aircraft at a flight speed, the aircraft including a relatively high temperature device that benefits from a cooling process and a refrigeration system capable of providing a cooling to the relatively high temperature device, the refrigeration system having: a heat providing component in communication with a heat absorbing component via a working fluid that flows from the heat absorbing component to the heat providing component, the heat providing component disposed in thermal communication with a duct having a flow of heat exchange fluid, the heat absorbing component in thermal communication with the relatively high temperature device; a delivery discharge operable to emit a phase transition medium into the duct with the heat exchange fluid; and a controller operable to generate a signal to selectively cause the delivery discharge to emit the phase transition medium, wherein the signal generated by the controller is dependent upon a temperature of the heat exchange fluid in the duct; wherein the heat providing component exchanges heat with the heat exchange fluid and the phase transition medium; and wherein the heat providing component of the refrigeration system is located in a pod exposed to a flow of air that enters an opening in the pod, the flow of air forming the heat exchange fluid. a heat providing component in communication with a heat absorbing component via a working fluid that flows from the heat absorbing component to the heat providing component, the heat providing component disposed in thermal communication with a duct having a flow of heat exchange fluid, the heat absorbing component in thermal communication with the relatively high temperature device; a delivery discharge operable to emit a phase transition medium into the duct with the heat exchange fluid; and a controller operable to generate a signal to selectively cause the delivery discharge to emit the phase transition medium, wherein the signal generated by the controller is dependent upon a temperature of the heat exchange fluid in the duct; wherein the heat providing component exchanges heat with the heat exchange fluid and the phase transition medium; and wherein the heat providing component of the refrigeration system is located in a pod exposed to a flow of air that enters an opening in the pod, the flow of air forming the heat exchange fluid.