Patent ID: 6929037

Claim:
A system for reducing the volume of vapor present in the ullage of a storage tank, comprising: a conduit containing a cooling media; a radiator located inside the ullage of the storage tank, wherein said radiator is connected inline to said conduit; a pump and heat exchanger connected inline to said conduit; an electronic controller that is electrically coupled to said pump to activate said pump, wherein said electronic controller is adapted to activate said pump and circulate said cooling media through said heat exchanger to cool said cooling media and circulate said cooling media through said radiator to cool the vapor in the ullage of the storage tank; a valve couple inline to an outlet of said heat exchanger, wherein said valve is under control of said electronic controller and said valve is opened to allow said cooling media to circulate through said radiator; and a storage tank pressure sensor that measures the pressure of the storage tank and inputs the storage tank pressure into said electronic controller; wherein said electronic controller opens said valve and activates said pump if said storage tank pressure is greater than a present threshold.