Rohrhydraulik

Richter, Hugo

doi:10.1007/978-3-642-52164-5

Cited by 77 publications

(1 citation statement)

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“…The local flow losses H L are experimentally obtained by the manufacturers of the components [32][33][34][35][36], and are given by the following equation:…”

Section: Pressure Losses In the Piping Networkmentioning

confidence: 99%

Theoretical and Numerical Study of a Photovoltaic System with Active Fluid Cooling by a Fully-Coupled 3D Thermal and Electric Model

et al. 2020

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The paper deals with the three-dimensional theoretical and numerical investigation of the electrical performance of a Photovoltaic System (PV) with active fluid cooling (PVFC) in order to increase its efficiency in converting solar radiation into electricity. The paper represents a refinement of a previous study by the authors in which a one-dimensional theoretical model was presented to evaluate the best compromise, in terms of fluid flow rate, of net power gain in a cooled PV system. The PV system includes 20 modules cooled by a fluid circulating on the bottom, the piping network, and the circulating pump. The fully coupled thermal and electrical model was developed in a three-dimensional geometry and the results were discussed with respect to the one-dimensional approximation and to experimental tests. Numerical simulations show that a competitive mechanism between the power gain due to the cell temperature reduction and the power consumption of the pump exists, and that a best compromise, in terms of fluid flow rate, can be found. The optimum flow rate can be automatically calculated by using a semi-analytical approach in which irradiance and ambient temperature of the site are known and the piping network losses are fully characterized.

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“…The local flow losses H L are experimentally obtained by the manufacturers of the components [32][33][34][35][36], and are given by the following equation:…”

Section: Pressure Losses In the Piping Networkmentioning

confidence: 99%