Energy storage module for battery rack comprisng phase change material heat exchanger
AssigneeWüRtsilä Energy Storage, Inc.
InventorDewei Guan
Life of this patent
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Abstract
An energy storage cooling system for an energy storage module has a chiller for supplying a coolant; a PCM heat sink including a heat exchanger; a piping system for circulating the coolant between the chiller, the heat exchanger and a battery rack of the energy storage module; a valve system including at least one 3-way valve arranged upstream to the PCM heat sink and to the battery rack; a control unit configured to control the 3-way valves in different operating modes including at least following modes: Battery cooling mode, wherein the coolant is allowed to circulate through PCM heat sink and through the battery rack; and battery heating mode, wherein the coolant is not allowed to circulate through PCM heat sink but allowed through the battery rack.
Claims21
An energy storage cooling system for an energy storage module, comprising:
- a chiller for supplying a coolant;
- a PCM heat sink comprising a heat exchanger;
- a piping system for circulating the coolant between the chiller, the heat exchanger and a battery rack of the energy storage module;
- a valve system comprising at least one 3-way valve arranged upstream to the PCM heat sink and to the battery rack;
- and
- a control unit configured to control the valve system in different operating modes comprising:
- a battery cooling mode, wherein the coolant is allowed to circulate through the PCM heat sink and through the battery rack;
- a battery heating mode, wherein the coolant is not allowed to circulate through the PCM heat sink but allowed to circulate through the battery rack;
- and
- a PCM cooling charge mode, wherein the coolant is allowed to circulate through the PCM heat sink but not allowed to circulate through the battery rack.
An energy storage module with an energy storage cooling system comprising:
- a chiller for supplying a coolant;
- a PCM heat sink comprising a heat exchanger;
- a piping system for circulating the coolant between the chiller, the heat exchanger and a battery rack of the energy storage module;
- a valve system comprising at least one 3-way valve arranged upstream to the PCM heat sink and to the battery rack;
- and
- a control unit configured to control the valve system in different operating modes comprising:
- a battery cooling mode, wherein the coolant is allowed to circulate through the PCM heat sink and through the battery rack;
- a battery heating mode, wherein the coolant is not allowed to circulate through the PCM heat sink but allowed to circulate through the battery rack;
- and
- a PCM cooling charge mode, wherein the coolant is allowed to circulate through the PCM heat sink but not allowed to circulate through the battery rack.
A computer implemented method for controlling an energy storage cooling system for an energy storage module comprising a chiller for supplying a coolant;
- a PCM heat sink comprising a heat exchanger;
- a piping system for circulating the coolant between the chiller, the heat exchanger and a battery rack of the energy storage module;
- and a valve system comprising at least one 3-way valve arranged upstream to the PCM heat sink and to the battery rack;
- the method comprising:
- determining operating modes for controlling the 3-way valves;
- controlling, in battery cooling mode, the coolant to circulate through the PCM heat sink and through the battery rack;
- controlling, in a battery heating mode, the coolant to not circulate through the PCM heat sink but circulate through the battery rack;
- and
- controlling, in a PCM cooling charge mode, the coolant to circulate through the PCM heat sink but not circulate through the battery rack.
Dependencies are inferred from the claim text.