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Design Guidelines for PVT Liquid Cooling Plates
Design Guidelines for PVT Liquid Cooling Plates In recent years, the deployment of solar panels has surged, and I’ve been genuinely impressed by the pace of growth in the photovoltaic (PV) market. A report from Fraunhofer ISE shows that from 2014 to 2024, global PV installations grew at a compound annual growth rate (CAGR) of 27%. It’s clear that the pursuit of more efficient solar energy utilization has become a strong and undeniable trend. From my work, I’ve also noticed that modern PV systems are no longer used solely for power generation. In industrial parks, agricultural greenhouses, and commercial buildings, users increasingly require both electricity and thermal energy. As a result, more projects are turning to photovoltaic thermal (PVT) systems, which generate electricity and heat simultaneously through a single system—maximizing the value of each solar panel. However, to truly achieve this “dual output” of electricity and heat, the cooling system must be up to the task. That’s where the PVT liquid cooling plate heat exchanger becomes essential. It needs to manage the PV module’s temperature while efficiently transferring heat for secondary utilization. In my experience, PVT heat exchanger design is far from simple. The routing of flow channels, material selection, and pressure drop control all influence overall system efficiency. Manufacturing methods are just as critical. For example, we frequently use stamping processes or opt for extrusion cooling plate structures that are well-suited for standardized mass production. Every detail affects the final system performance. When designing a PVT liquid cooling plate, the flow channel layout is often one of the first things to determine. Though it may sound like a matter of “where the water goes,” it directly impacts heat exchange efficiency, temperature distribution, and system stability. Based on my experience, flow channel design usually starts with a few core areas: 1.Selecting the…
