System and method for making a building carbon neutral
AssigneeCarrier Corporation
InventorsRohan Ajinkya Mehta, Venkata Satya Pratap Kumar Dunna
Life of this patent
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Abstract
An open loop cooling apparatus is provided. The open loop cooling apparatus includes gas capturing and collecting elements, an expansion valve receptive of pressurized gas from the gas capturing and collecting elements and configured to expand the pressurized gas, an evaporator coil downstream from the expansion valve through which the pressurized gas, having been expanded in the expansion valve, passes to cool air flowing over the evaporator coil and one or more storage tanks receptive of the pressurized gas from the evaporator coil for later sale.
Claims12
An open loop cooling apparatus, comprising:
- gas capturing and collecting elements configured for and capable of capturing and cooling gas from the return air, wherein the gas comprises carbon dioxide;
- an expansion valve receptive of pressurized gas from the gas capturing and collecting elements and configured to expand the pressurized gas;
- an evaporator coil downstream from the expansion valve through which the pressurized gas, having been expanded in the expansion valve, passes as expanded and de-pressurized gas to cool air flowing over the evaporator coil;
- and
- plural storage tanks receptive of the expanded and de-pressurized gas from the evaporator coil for later sale,
- wherein each of the plural storage tanks is a cylinder, the plural storage tanks are filled in series at corresponding respective ends thereof and the open loop cooling apparatus further comprises:
- check valves between each of the plural storage tanks;
- and
- pressure gauges disposed on each of the plural storage tanks at the corresponding respective ends thereof to determine when the plural storage tanks are filled and to issue an alert as to a filled state of the plural storage tanks.
An open loop cooling apparatus which is receptive of return air from an air handler of a building and which is configured to direct supply air back to the air handler, the open loop cooling apparatus comprising:
- an evaporative cooling environment into which the return air is directed and comprising a gas capturing element configured for and capable of capturing and cooling gas from the return air, wherein the gas comprises carbon dioxide;
- a gas collector receptive of cooled gas from the gas capturing element;
- an expansion valve receptive of pressurized gas from the gas collector and configured to expand the pressurized gas;
- an evaporator coil downstream from the expansion valve through which the pressurized gas, having been expanded in the expansion valve, passes as expanded and de-pressurized gas to cool the supply air flowing over the evaporator coil;
- and
- plural storage tanks receptive of the expanded and de-pressurized gas from the evaporator coil for later sale,
- wherein each of the plural storage tanks is a cylinder, the plural storage tanks are filled in series at corresponding respective ends thereof and the open loop cooling apparatus further comprises:
- check valves between each of the plural storage tanks;
- and
- pressure gauges disposed on each of the plural storage tanks at the corresponding respective ends thereof to determine when the plural storage tanks are filled and to issue an alert as to a filled state of the plural storage tanks.
An open loop cooling method, comprising:
- capturing carbon dioxide (CO2) from return air;
- preparing the CO2 for use as a coolant;
- using the CO2 as the coolant to cool supply air;
- and
- storing the CO2 in plural storage tanks for later sale,
- wherein each of the plural storage tanks is a cylinder, the storing comprises filling the plural storage tanks in series at corresponding respective ends thereof and the open loop cooling method further comprises:
- disposing check valves between each of the plural storage tanks;
- and
- determining, by pressure gauges disposed on each of the plural storage tanks at the corresponding respective ends thereof, when the plural storage tanks are filled and issuing an alert as to a filled state of the plural storage tanks.
Dependencies are inferred from the claim text.