Pulsing adiabatic gas cooler

Patent metadata

Field	Value
Publication number	US-11609052-B2
Application number	US-202117401631-A
Country	US
Kind code	B2
Filing date	Aug 13, 2021
Priority date	Apr 3, 2017
Publication date	Mar 21, 2023
Grant date	Mar 21, 2023

Abstract

A method by a controller of a cooling system includes calculating a difference between a first temperature of ambient air and a second temperature of pre-cooled air. The pre-cooled air is ambient air that has been cooled by water from a water distribution system before it enters one or more condenser coils. The method further includes determining that the difference between the first and second temperatures is less than or equal to a predetermined temperature difference, and in response, determining that the first temperature is greater than or equal to a minimum temperature. The method further includes, if the first temperature is greater than or equal to the minimum temperature, instructing the water distribution system to distribute the water to pre-cool the ambient air for a predetermined length of time and to disable the distribution of the water after the predetermined amount of time has elapsed.

First claim

What is claimed is:

1. An evaporative cooling system, comprising:
a plurality of condenser coils;
one or more panels affixed to the plurality of condenser coils, wherein each panel of the one or more panels is operable to receive and retain water provided by a water distribution system;
the water distribution system operable to provide a spray of water to pre-cool ambient air before the ambient air enters the plurality of condenser coils, wherein the water distribution system comprises a plurality of spray nozzles, each spray nozzle configured, when the water distribution system is providing the spray of water, to provide a corresponding portion of the spray of water away from the one or more panels;
a plurality of sensors comprising:
a first sensor operable to sense a first temperature of the ambient air; and
a second sensor operable to sense a second temperature of the pre-cooled air; and

a controller communicatively coupled to the water distribution system and the first and second sensors, the controller operable to:
calculate an amount of temperature difference between the first and second temperatures;
determine a predetermined temperature difference based on a geographical location of the evaporative cooling system;
determine that the amount of temperature difference between the first and second temperatures is less than or equal to the predetermined temperature difference;
in response to determining that the amount of temperature difference between the first and second temperatures is less than or equal to the predetermined temperature difference, determine that the first temperature is greater than or equal to a minimum temperature;
in response to determining that the first temperature is greater than or equal to the minimum temperature, instruct the water distribution system to enable the spray of water to spray for a predetermined length of time; and
instruct the water distribution system to disable the spray of water after the predetermined amount of time has elapsed.

2. The evaporative cooling system of claim 1 , wherein:
the predetermined temperature difference is five degrees Fahrenheit; and
the minimum temperature is 78 degrees Fahrenheit.

3. The evaporative cooling system of claim 1 , wherein the predetermined length of time is one minute.

4. The evaporative cooling system of claim 1 , the controller further operable to:
determine that the amount of temperature difference between the first and second temperatures is greater than the predetermined amount; and
in response to determining that the amount of temperature difference between the first and second temperatures is greater than the predetermined amount, instruct the water distribution system to disable the spray of water.

5. The evaporative cooling system of claim 1 , the controller further operable to:
determine that it is raining by determining that the first temperature equals the second temperature; and
in response to determining that the first temperature equals the second temperature, instruct the water distribution system to disable the spray of water for a certain amount of time.

6. The evaporative cooling system of claim 1 , the controller further operable to:
determine that the first temperature is less than the minimum temperature; and
in response to determining that the first temperature is less than the minimum temperature, instruct the water distribution system to disable the spray of water.

7. The evaporative cooling system of claim 1 , wherein the controller is further operable to determine the geographical location of the evaporative cooling system using GPS coordinates.

8. The evaporative cooling system of claim 1 , wherein the predetermined temperature difference is between 0.1 and 9.9 degrees Fahrenheit.

9. A method, comprising:
by a controller of a cooling system, calculating an amount of temperature difference between a first temperature of ambient air and a second temperature of pre-cooled air, the pre-cooled air comprising ambient air that has been cooled by water from a water distribution system before the ambient air enters one or more condenser coils of the cooling system, wherein the cooling system comprises one or more panels affixed to the one or more condenser coils, wherein each panel of the one or more panels is operable to receive and retain water provided by the water distribution system;
by the controller of the cooling system, determining a predetermined temperature difference based on a geographical location of the cooling system;
by the controller of the cooling system, determining that the amount of temperature difference between the first and second temperatures is less than or equal to the predetermined temperature difference;
by the controller of the cooling system, in response to determining that the amount of temperature difference between the first and second temperatures is less than or equal to the predetermined temperature difference, determining that the first temperature is greater than or equal to a minimum temperature;
by the controller of the cooling system, in response to determining that the first temperature is greater than or equal to the minimum temperature, instructing the water distribution system to distribute the water to pre-cool the ambient air for a predetermined length of time, wherein distributing the water comprises providing, from each of a plurality of spray nozzles of the water distribution system, a portion of the distributed water away from the one or more panels affixed to the one or more condenser coils; and
by the controller of the cooling system, instructing the water distribution system to disable the distribution of the water after the predetermined amount of time has elapsed.

10. The method of claim 9 , wherein:
the predetermined temperature difference is five degrees Fahrenheit; and
the minimum temperature is 78 degrees Fahrenheit.

11. The method of claim 9 , further comprising:
by the controller of the cooling system, determining that the amount of temperature difference between the first and second temperatures is greater than the predetermined amount; and
by the controller of the cooling system, in response to determining that the amount of temperature difference between the first and second temperatures is greater than the predetermined amount, instructing the water distribution system to disable the spray of water.

12. The method of claim 9 , further comprising:
by the controller of the cooling system, determining that it is raining by determining that the first temperature equals the second temperature; and
by the controller of the cooling system, in response to determining that the first temperature equals the second temperature, instructing the water distribution system to disable the spray of water for a certain amount of time.

13. The method of claim 9 , further comprising:
by the controller of the cooling system, determining that the first temperature is less than the minimum temperature; and
by the controller of the cooling system, in response to determining that the first temperature is less than the minimum temperature, instructing the water distribution system to disable the spray of water.

14. One or more computer-readable non-transitory storage media in one or more computing systems, the media embodying logic that is operable when executed to:
calculate an amount of temperature difference between a first temperature of ambient air and a second temperature of pre-cooled air, the pre-cooled air comprising ambient air that has been cooled by water from a water distribution system before the ambient air enters one or more c

Assignees

• Heatcraft Refrigeration Products Llc

Inventors

• Najafifard Fardis

Classifications

• Y02B30/54

  Free-cooling systems · CPC title

• F28B1/02

  using water or other liquid as the cooling medium · CPC title

• F28F25/02

  for distributing, circulating, and accumulating liquid (spraying or atomising in general B05B, B05D) · CPC title

• F24F11/87

  by controlling absorption or discharge of heat in outdoor units · CPC title

• F24F2110/10

  Temperature · CPC title