Forest fire fuel heat transfer sensor

A heat transfer sensor comprising:

• a support body comprising a top wall and a plurality of side walls;
• a first thermocouple probe mounted to the top wall to extend upright relative to an exterior surface of the top wall, the first thermocouple probe comprising
• a first hollow cylinder configured to have a first emissivity that is less than or equal to 0.25;
• a first thermocouple mounted to an interior of the first hollow cylinder and configured to generate a first voltage based on a first temperature of the first hollow cylinder;
• and
• a first insulator mounted between the first hollow cylinder and the top wall;
• a second thermocouple probe mounted to the top wall to extend upright relative to the exterior surface of the top wall, the second thermocouple probe comprising
• a second hollow cylinder configured to have a second emissivity that is greater than or equal to 0.75;
• a second thermocouple mounted to an interior of the second hollow cylinder and configured to generate a second voltage based on a second temperature of the second hollow cylinder;
• and
• a second insulator mounted between the second hollow cylinder and the top wall;
• a third thermocouple probe mounted to the top wall to extend upright relative to the exterior surface of the top wall, the third thermocouple probe comprising
• a third hollow cylinder configured to have a third emissivity that is greater than 0.25 and less than 0.75;
• a third thermocouple mounted to an interior of the third hollow cylinder and configured to generate a third voltage based on a third temperature of the third hollow cylinder;
• and
• a third insulator mounted between the third hollow cylinder and the top wall;
• a processor;
• and
• a non-transitory computer-readable medium operably coupled to the processor, the computer-readable medium having computer-readable instructions stored thereon that, when executed by the processor, cause the heat transfer sensor to
• receive the first voltage from the first thermocouple probe;
• receive the second voltage from the second thermocouple probe;
• receive the third voltage from the third thermocouple probe;
• convert the first voltage to a first temperature value;
• convert the second voltage to a second temperature value;
• convert the third voltage to a third temperature value;
• and
• compute a convective heat transfer to and an incident radiation on an object in an environment surrounding the support body using the first temperature value, the second temperature value, and the third temperature value, wherein an area of the first hollow cylinder computed using a diameter and a height of the first hollow cylinder is approximately equal to an area of the object in the environment for which the heat transfer sensor computes the convective heat transfer and the incident radiation.