What is a liquid-cooled battery energy storage system (BESS)?

High-power battery energy storage systems (BESS) are often equipped with liquid-cooling systems to remove the heat generated by the batteries during operation. This tutorial demonstrates how to define and solve a high-fidelity model of a liquid-cooled BESS pack which consists of 8 battery modules, each consisting of 56 cells (14S4p).

Does liquid-cooling reduce the temperature rise of battery modules?

Under the conditions set for this simulation, it can be seen that the liquid-cooling system can reduce the temperature rise of the battery modules by 1.6 K and 0.8 K at the end of charging and discharging processes, respectively. Fig. 15.

What is liquid cooling BTMS?

The liquid-cooling BTMS consists of pumps, air conditioner, pipes, valves and cooling plates mounted on the sides or bottom of the battery modules. The temperature of the battery modules during charging and discharging processes is experimentally tested. A full-scale thermal-fluidic model of the ESS prototype is established.

Which CFD is used for meshing in ANSYS ICEM ESS?

The ANSYS ICEM CFD is used for meshing in this study. Fig. 7 displays the employed mesh of the LIB modules and liquid cooling system in the ESS. Because full-size LIB ESS is too large to perform grid independence test, a single LFP battery module and the cooling plates attached to it are selected.

Does ambient temperature affect the heat dissipation of lib modules?

The cooling plates only contact with the bottom of the NCM battery modules and the left and right sides of the LFP battery modules, the other surfaces of the battery module, for heat dissipation, rely on convection heat exchange with air. In the actual operation, the ambient temperature in LIB ESS may affect the heat dissipation of the LIB modules.

How many GWh of stationary energy storage will there be in 2040?

It is projected that by 2040 there will be about 1095 GW/2850 GWh of stationary energy storage in operation, mostly in the form of LIBs . Existing research on the application of retired LIBs in ESSs mainly focused on the economic and environmental aspects. Sun et al. established a cost-benefit model for a 3 MWh retired LIB ESS.