Feasibility analysis of a CPV system sized by means of a TJ cell black-box model and applied to a livestock farm welding

In the Concentrating Photovoltaic (CPV) systems, the Triple-Junction (TJ) cell electrical power is separately evaluated as function of its temperature or of the solar concentration factor (C), but generally not simultaneously as a function of both variables. Because all these variables are difficult to link by means of a white-box model, a mathematical model of the black-box type based on experimental data, is defined in this paper in order to link directly the TJ cell electric power together with Direct Normal Irradiance (DNI) and TJ cell temperature at different values of C. The knowledge of a link among TJ cell electric power, DNI and TJ cell temperature is basic to evaluate the real performances of a CPV system when it has to be sized, adopting a modular configuration, to meet the energy demands of a user. Hence, the feasibility of a CPV system adopted for an agricultural livestock farm located in Salerno (Italy), is evaluated by means of the model. The main activity of the farm is the breeding of cattle and sheep for milk production; the farm is made up of a stable and a farmhouse. The optimal number of TJ cells is defined to maximize the profitability of the investment, expressed in terms of Net Present Value. A CPV plant made up of 3000 cells, with an electric peak power of 6.6 kW, allows to maximize the NPV value up to about 16 k€.

[1]  M. Despotovic,et al.  Evaluation of empirical models for predicting monthly mean horizontal diffuse solar radiation , 2016 .

[2]  Muhammad Wakil Shahzad,et al.  Long-term performance potential of concentrated photovoltaic (CPV) systems , 2017 .

[3]  Ciro Aprea,et al.  Experimental analysis of a transfer function for an air cooled evaporator , 2001 .

[4]  Xi Luo,et al.  Modeling and Characteristic Parameters Analysis of a Trough Concentrating Photovoltaic/Thermal System with GaAs and Super Cell Arrays , 2012 .

[5]  Carlo Renno,et al.  Optimization of a concentrating photovoltaic thermal (CPV/T) system used for a domestic application , 2014 .

[6]  Sanjeev Jakhar,et al.  Modelling and Simulation of Concentrating Photovoltaic System with Earth Water Heat Exchanger Cooling , 2017 .

[7]  Manoj Kumar,et al.  Effect of temperature and concentration on commercial silicon module based low-concentration photovoltaic system , 2013 .

[8]  Kian Jon Chua,et al.  Sunlight to hydrogen conversion: Design optimization and energy management of concentrated photovoltaic (CPV-Hydrogen) system using micro genetic algorithm , 2016 .

[9]  C. Renno,et al.  Influence of a degraded triple-junction solar cell on the CPV system performances , 2018 .

[10]  Carlo Renno,et al.  Experimental and Theoretical Analysis of a Linear Focus CPV/T System for Cogeneration Purposes , 2018, Energies.

[11]  Antonio J. Rivera,et al.  Characterization of Concentrating Photovoltaic modules by cooperative competitive Radial Basis Function Networks , 2013, Expert Syst. Appl..

[12]  C. Renno,et al.  Experimental characterization of a concentrating photovoltaic system varying the light concentration , 2017 .

[13]  Ciro Aprea,et al.  An air cooled tube-fin evaporator model for an expansion valve control law , 1999 .

[14]  Gang Pei,et al.  Improving angular acceptance of stationary low-concentration photovoltaic compound parabolic concentrators using acrylic lens-walled structure , 2014 .

[15]  C. Ménézo,et al.  Assessment viability of a concentrating photovoltaic/thermal-energy cogeneration system (CPV/T) with storage for a textile industry application , 2018 .

[16]  Abraham Kribus,et al.  Potential of Polygeneration With Solar Thermal and Photovoltaic Systems , 2008 .

[17]  Peter N. Gorley,et al.  Photovoltaic solar cells performance at elevated temperatures , 2005 .

[18]  Eduardo F. Fernández,et al.  Calculation of the cell temperature of a high concentrator photovoltaic (HCPV) module: A study and comparison of different methods , 2014 .

[19]  Peng Hu,et al.  Design and experimental investigation of a Multi-segment plate concentrated photovoltaic solar energy system , 2017 .

[20]  Erdem Cuce,et al.  Concentrating photovoltaic thermal (CPVT) collectors and systems: Theory, performance assessment and applications , 2018 .

[21]  Mahmoud Ahmed,et al.  Analysis and simulation of concentrating photovoltaic systems with a microchannel heat sink , 2016 .

[22]  Carlo Renno,et al.  Triple-junction cell temperature evaluation in a CPV system by means of a Random-Forest model , 2018, Energy Conversion and Management.

[23]  J. Hernández-Moro,et al.  Concentrating solar power contribution to the mitigation of C-emissions in power generation and corresponding extra-costs , 2014 .

[24]  C. Renno,et al.  Performance analysis of a CPV/T-DC integrated system adopted for the energy requirements of a supermarket , 2019, Applied Thermal Engineering.

[25]  Natarajan Sendhil Kumar,et al.  Experimental validation of a heat transfer model for concentrating photovoltaic system , 2012 .