Invention Grant
- Patent Title: Storage source and cascade heat pump systems
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Application No.: US17138156Application Date: 2020-12-30
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Publication No.: US11680733B2Publication Date: 2023-06-20
- Inventor: Mark Mitchell MacCracken , Susanna Staubly Hanson
- Applicant: TRANE INTERNATIONAL INC.
- Applicant Address: US NC Davidson
- Assignee: TRANE INTERNATIONAL INC.
- Current Assignee: TRANE INTERNATIONAL INC.
- Current Assignee Address: US NC Davidson
- Agency: Hamre, Schumann, Mueller & Larson, P.C.
- Main IPC: F25B13/00
- IPC: F25B13/00 ; F24D11/02 ; F24D17/02 ; F24F5/00 ; F25D16/00 ; F28D20/00

Abstract:
A heating, ventilation, air conditioning, and refrigeration (HVACR) system includes a heating fluid circuit, a cooling fluid circuit, and a storage fluid circuit. A thermal system of the HVACR system absorbs energy from the storage fluid circuit and rejects it to the heating fluid circuit. The storage fluid circuit includes thermal storage tanks containing thermal storage material that can provide energy for heating or absorb energy for cooling depending on the state of the thermal storage material. Heating can be provided using the heating fluid circuit and the heat provided by the thermal system. Cooling can be provided using the cooling fluid circuit by absorbing energy from the conditioned space using a cooling fluid and rejecting energy from the cooling fluid to the storage fluid circuit. The thermal storage tanks can have heat added to them using an air source heat pump system to support heating operations.
Public/Granted literature
- US20220205686A1 STORAGE SOURCE AND CASCADE HEAT PUMP SYSTEMS Public/Granted day:2022-06-30
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