Optimum operational conditions of hybrid photovoltaic-thermal systems
| Autor: | Douglas Bressan Riffel, Jose Aguiar dos Santos Junior, André L. M. Costa |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Exergy
Materials science Renewable Energy Sustainability and the Environment business.industry Geography Planning and Development Photovoltaic system 0211 other engineering and technologies Working temperature 02 engineering and technology 010501 environmental sciences Management Monitoring Policy and Law 01 natural sciences Cogeneration Operating temperature Thermal 021108 energy Process engineering business Temperature coefficient 0105 earth and related environmental sciences |
| Zdroj: | Energy for Sustainable Development. 60:26-32 |
| ISSN: | 0973-0826 |
| DOI: | 10.1016/j.esd.2020.11.003 |
| Popis: | The aim of this paper is to present a novel concept for control of hybrid photovoltaic-thermal systems: a Maximum Exergy Point Tracker. It operates by evaluation of the exergetic and energetic performance of a solar photovoltaic-thermal (PV/T) system, to find the maximum cell temperature that produces at least the same exergy as the system without cogeneration. This maximum working temperature is a very important issue for proper design of cogeneration plants and their operation. The operation with concentration showed better results for energetic and exergetic efficiencies, in addition to an increase in the maximum operating temperature of the photovoltaic cell, compared to operation without concentration. The results allow selecting a suitable photovoltaic cell for a given application, depending on its reference efficiency and temperature coefficient. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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