Additive injection system for a retail fueling station and related methods

A retail fueling station configured to treat fuel for dispensing to end users at the retail fueling station, the retail fueling station comprising:

• a) a fuel storage system for storing fuel, the fuel storage system including a fuel tank having a fuel tank inlet through which fuel is deliverable into the fuel tank;
• b) one or more fuel dispensers connected to the fuel storage system and operable by the end users for dispensing fuel from the fuel tank;
• c) a fuel monitoring system for generating fuel data based on input received from one or more fuel sensors, the fuel sensors for measuring operating conditions of the fuel storage system;
• d) at least one additive tank for storing a fuel additive;
• e) an additive conduit assembly for conducting additive from the additive tank to the fuel tank inlet of the fuel tank;
• and
• f) an additive injection system for controlling injection of the additive from the additive tank into the fuel tank inlet via the conduit assembly, the additive injection system including an injection controller programmed to:
• i) receive the fuel data generated by the fuel monitoring system;
• ii) determine, from the fuel data, a total fuel amount corresponding to a total volume of fuel present in the fuel tank at a detection time;
• iii) determine an untreated fuel amount corresponding to a delivered volume of untreated fuel delivered into the fuel tank via the fuel tank inlet, the untreated fuel amount determined based on the total fuel amount and a treated fuel amount, the treated fuel amount corresponding to an expected volume of treated fuel expected to be present in the fuel tank at approximately the detection time;
• and
• iv) in response to determining that the untreated fuel amount satisfies an injection threshold, initiate injection of an injection volume of fuel additive into a fuel stream of untreated fuel being delivered into the fuel tank via the fuel tank inlet, to treat the delivered volume of untreated fuel.