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Design And Optimization of Solar Based Hybrid Power System

Diğer Başlık: Güneş Esaslı Hibrit Güç Sistemlerinin Tasarımı Ve Optimizasyonu

Oluşturulma Tarihi: 08-12-2020

Niteleme Bilgileri

Tür: Tez

Alt Tür: Yüksek Lisans Tezi

Yayınlanma Durumu: Yayınlanmamış

Dosya Biçimi: PDF

Dil: İngilizce

Konu(lar): Elektrik mühendisliği. Elektronik. Nükleer mühendislik,

Yazar(lar): Ceylan, Ceren (Yazar),

Emeği Geçen(ler): Devrim, Yılser (Tez Danışmanı),


Yayın Tarihi: 11-08-2020


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Anahtar Kelimeler

Hybrid Systems, Photovoltaics, PEMFC, MATLAB/Simulink


Özet

With the developing technology and increasing World population, energy demand is increasing. Since fossil fuels are running out day by day, renewable energy sources have been used to produce clean energy. The most preferred renewable energy source is the Sun that cannot be used on cloudy days and nights. Also, the most important disadvantages of solar energy are storage. In these conditions, fuel cells are used to meet the energy needs and ensure continuity. Due to their short start-up times and high efficiency, fuel cells have become popular. Hydrogen (H2), the most common element in the universe, is used as a fuel in fuel cells. H2 is not an energy source, but it is a very good energy carrier. When H2 used as a fuel, water or water vapor is released. During the production of energy, there is no harmful gases and chemicals which pollute the environment and increase the greenhouse effect which provesthat it is environmentally friendly. In this thesis, 2.4 kW Proton Exchange Membrane Fuel Cell (PEMFC), which was operated for 5 hours a day, was designed to meet the energy needs of a greenhouse in Şanliurfa. The electrolyzer was designed to produce H2 for PEMFC and the electricity demand for the operation of the electrolyzer was supplied from 80 photovoltaic (PV) cells. The produced H2 was stored in storage tanks for use in PEMFC. At the end of 365 days, total of 430 kg H2 was stored with designed system. Also, heat was released when PEMFC operates and it was approximately 20 kW per day. This heat must be removed to ensure that the PEMFC’s safety and high efficiency. The generated heat produced from PEMFC was removed with the help of the heat exchanger. In this process, while the temperature of the PEMFC cooling water, which was heated by the heat removal, decreases to 34 oC, the temperature of the water to be used for the heating of the greenhouse is increased up to 61 oC. The ratio of investment, operation, and maintenance costs to the amount of energy produced by hybrid energy system during operation gives the levelized cost of energy. It was calculated 1.77 $/kWh for this hybrid energy system.


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