1. A fuel dispenser temperature maintenance system comprising:
a centrifugal fan mounted to a fuel dispenser, the fan adapted to:
circulate an airflow from an exterior of the fuel dispenser to an interior of the fuel dispenser;
separate the airflow into a conditioning airflow and an ejected airflow, the ejected airflow comprising a plurality of particulates;
direct the conditioning airflow directly to a fuel dispenser component; and
an airflow separator comprising a separator inlet adapted to receive the ejected airflow, the airflow separator adapted to guide the ejected airflow from the separator inlet directly to an exterior of the fuel dispenser through an outlet channel, the outlet channel disposed between the airflow separator and the exterior of the fuel dispenser.
2. The system of claim 1 further comprising a duct disposed between the fan and the fuel dispenser component, the duct adapted to guide the conditioning airflow directly to the fuel dispenser component.
3. The system of claim 1 further comprising a filter adapted to remove particulate matter from the airflow.
4. The system of claim 3, the filter located at an inlet of the fan.
5. The system of claim 3, the filter comprising an open cell foam filter.
6. The system of claim 1, the fuel dispenser component comprising at least one of:
an electronics head of the fuel dispenser;
a currency acceptor;
a payment module;
a printer; and
a fuel dispenser display.
7. The system of claim 6, the currency acceptor comprising an airflow opening, the fan adapted to pull the airflow from an exterior of the fuel dispenser through the airflow opening.
8. The system of claim 1, the centrifugal fan comprising at least one of:
a variable speed fan; and
a multi-speed fan.
9. The system of claim 1, the airflow separator located at an outlet of the fan.
10. The system of claim 1, the conditioning airflow comprising approximately 90-99% of the airflow and the ejected airflow comprising approximately 1-10% of the airflow.
11. The system of claim 1, further comprising:
an airflow snorkel tube; and
an airflow port, the port located at an end of the airflow snorkel tube and adapted to direct the airflow from the exterior of the fuel dispenser to the fan.
12. The system of claim 11, the airflow port comprising at least one of:
an airflow port filter;
one or more airflow louvers; and
one or more airflow dampers.
13. The system of claim 1 further comprising:
a temperature sensor;
a heater; and
a temperature controller adapted to control at least one of the fan and the heater based on a sensor output.
14. A method to maintain an operating temperature range of a fuel dispenser component comprising:
circulating an airflow from an exterior of a fuel dispenser to an interior of the fuel dispenser through an airflow inlet;
separating the airflow into a conditioning airflow and an ejected airflow, the ejected airflow comprising approximately 25% or less of the airflow;
directing the conditioning airflow to a fuel dispenser component; and
directing the ejected airflow to the exterior of the fuel dispenser through an airflow outlet channel.
15. The method of claim 14 further comprising mechanically filtering the airflow of a plurality of particulates.
16. The method of claim 14, wherein directing the conditioning airflow to a fuel dispenser component comprises directing the conditioning airflow through a substantially enclosed pathway to a fuel dispenser component.
17. The method of claim 14, wherein directing the conditioning airflow to a fuel dispenser component comprises directing the conditioning airflow to at least one of:
an electronics head of the fuel dispenser;
a currency acceptor;
a payment module;
a printer; and
a fuel dispenser display.
18. The method of claim 14, wherein circulating an airflow from an exterior of a fuel dispenser comprises circulating an airflow from an airflow port at the exterior of the fuel dispenser through an airflow snorkel tube.
19. The method of claim 18 further comprising mechanically filtering the airflow via the airflow port.
20. The method of claim 14 further comprising:
measuring at least one of a temperature of the fuel dispenser component or an air temperature of the interior of the fuel dispenser; and
adjusting at least one of a fan speed or a heater output based on at least one of the temperature of the fuel dispenser component or the air temperature of the interior of the fuel dispenser.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A flame retardant composition comprising:
a. an organic polymer selected from the group consisting of polyolefins and polyvinyl chloride and
b. a nanographene.
2. The flame retardant composition of claim 1 wherein the organic polymer is a polyolefin polymer selected from the group consisting of ethylene polymers and propylene polymers.
3. The flame retardant composition of claim 1 wherein the organic polymer is a polyvinyl chloride selected from the group consisting of PVC homopolymers, PVC copolymers, polyvinyl dichlorides (PVDC), and polymers of vinylchloride with vinyl, acrylic and other co-monomers.
4. The flame retardant composition of claim 2 or claim 3 wherein the nanographene has an aspect ratio of greater than or equal to 100:1.
5. The flame retardant composition of any of claims 2-4 wherein the nanographene has a surface area greater than or equal to 40 m2gram nitrogen surface absorption area.
6. The flame retardant composition of any of claims 2-5 wherein the nanographene is expanded.