Patent ID: 11944080
Assignee: nan
Field: Thermal processes and apparatus (Mechanical engineering)
Classification: CPC A  F | IPC A  F

Claim 8:
9. A method of controlling temperature of water received in a chamber of an open air water tank, comprising:
circulating a thermal transfer fluid through a heat exchanger with a closed loop of tubing that is at least partially submerged in the water; wherein the closed loop of tubing is spaced from a bottom of the water tank and includes at least one coil section in the water;
heating the thermal transfer fluid using one or more heat collectors in communication with the tubing as the thermal transfer fluid is circulated through the heat exchanger and the tubing;
determining a temperature of the water in the chamber of the water tank; and
upon a determination that the temperature of the water is below a first threshold temperature, starting a pump in fluid communication with the heat exchanger to facilitate the circulation of the thermal transfer fluid through the closed loop of tubing and turning off the pump when the water is at or above a second threshold temperature greater than the first threshold temperature.