Heat exchanger for a photovoltaic module and / or a thermal, in particular photovoltaic-thermal, solar collector

Abstract

The invention relates to a heat exchanger for a photovoltaic module and / or a thermal, in particular photovoltaic-thermal, solar collector, which has channels (3) for receiving heat transfer fluid and an inlet (4) and an outlet (6) for the heat transfer fluid, wherein the heat transfer fluid inlet (4) and the heat transfer fluid outlet (6) are connected to each other by the channels (3) and the channels (3) are arranged at different distances from the inlet (4) and / or the outlet (6). According to the invention, the channels (3) are designed such that different pressure losses occur when the heat transfer fluid flows through the channels (3). Advantageously, the channels (3) are designed such that the magnitude of the pressure loss depends on the distance of the respective channel (3) from the heat transfer fluid inlet (4) and / or from the heat transfer fluid outlet (6).In one embodiment of the invention, the channels (3) are configured such that the pressure drop of one of the channels (3) located at a greater distance from the heat transfer fluid inlet (4) is smaller than the pressure drop of another of the channels (3) located at a shorter distance from the heat transfer fluid inlet (4), and / or that the pressure drop of one of the channels (3) located at a greater distance from the heat transfer fluid outlet (6) is smaller than the pressure drop of another of the channels (3) located at a shorter distance from the heat transfer fluid outlet (6). The invention further relates to a photovoltaic module (19) and / or a thermal, in particular photovoltaic-thermal, solar collector, which...which includes the heat exchanger, and an assembly for retrofitting a photovoltaic module (19) and / or a thermal, in particular photovoltaic-thermal, solar collector, which has a device for attaching a heat exchanger (1) to the photovoltaic module (19) and / or the solar collector, which includes means for holding and / or clamping the heat exchanger (1) to or against a mounting frame (20) of the photovoltaic module (19) and / or the solar collector.