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Title: Design of hybrid photo-voltaic/thermal solar systems and performance analysis for residential building case studies
Authors: Antony, Anu
Issue Date: 2020
Publisher: Newcastle University
Abstract: PV/T systems (Photovoltaic/Thermal Systems) is a hybrid assembly of PV and solar thermal collector technology and generates both electric and heat energy. Over the past three decades, various numerical analysis was conducted on PV/T systems under steady-state, quasi-dynamic state and dynamic state. It was realised that a set of factors affected the performance of the PV/T. However, a lack of standard for the PV/T, combined with limited experimental data to assess the variation in operating performance with respect to all the affecting factors is low. The aim of this research is to study and model the dynamic behaviour of PV/T systems while identifying all the contributing factors responsible for its performance at any location. These factors are then investigated further to enable an accurate working model for application in residential buildings. The dynamic model that can identify the performance, efficiency, and impact of various factors for the given PV/T system was proposed and validated based on the experimental data and three different case studies were chosen based at three different locations(Newcastle, Lisbon and Cochin). The main methodology chosen here was by solving the energy balance equations using the RK4 method in MATLAB which is supported by experimental results at real-time conditions in Newcastle with error of 4.2%. It was found that there is a significant improvement in the efficiency of at least 3% when compared to a real-time PV and solar collector unit in Portugal. The model was designed to supply load-demand for two residential cases (4-bed domestic house in Newcastle and Cochin). An exergy analysis was conducted to find the feasibility of these simulated models. The life-cycle cost efficiency for the case study in Newcastle was found to be 10.6% while in Cochin the life cycle cost efficiency was found to be at 23.2% with respect to exergy. The simulated model thus indicates that the exergy from Cochin is more feasible than from the system in Newcastle for the case studies considered in their respective locations. Employing this model, the performance effect of various parameters can be established, an improved system can be designed and applied for residential buildings. This model can also be used as an indicator to comprehend PV/T performance based on location and thus, can act as a rudimentary support for PV/T standardisation.
Description: Ph. D. Thesis.
Appears in Collections:School of Engineering

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