جستجوی مقالات مرتبط با کلیدواژه "سیستم ترکیبی تجدیدپذیر" در نشریات گروه "فنی و مهندسی"

The energy demand is growing daily due to the growing population, rising electricity consumption, and widespread usage of advanced equipment. The environmental damage caused by fossil fuels and their economic and political implications in countries worldwide has prompted a quest for alternative energy sources. One of the key advantages of renewable energy sources is their ability to combine with other energy sources to create hybrid renewable energy systems. Hybrid renewable systems are devices that utilize more than one energy generation source to fulfill the required electrical and thermal loads. In this study, a hybrid renewable energy system has been designed for the Faculty of Engineering of Golestan University located in Gorgan City, utilizing Homer software. This system, which includes solar panels, wind turbines, diesel generators and grid power integration, fulfills the energy needs of the facility. Additionally, heating needs are supplied using a boiler and heat controller. The results indicate that the optimized system has a total current cost of $214,266, with a cost of energy production per kilowatt-hour amounting to 0.0159 $ and the renewable resource contribution is 71.7%. Moreover, the sensitivity analysis reveals that when the inflation rate surges to 20%, the current cost of the whole project ascends to 16 %.

This paper presents the optimal planning of renewable hybrid systems including wind turbines and bio-waste energy units according to hydrogen and thermal storages considering feeding of electrical and thermal energies. Bio-waste unit is based on the operation of the combined power and heat system, which produces electrical and thermal energy at the same time. Hydrogen storage is hybrid of an electrolyze, hydrogen tank, and fuel cell. The proposed scheme minimizes the total annual investment and maintenance costs. It is subject to the operation model of the mentioned elements. In the operation model of sources and storage, renewable sources supply loads of energy, then storage uses to cover the gap between the load and renewable power profiles. This paper uses the hybrid solver of the Gray wolf optimizer and the sine-cosine algorithm to obtain a reliable optimal solution with a low standard deviation in the final response. Finally, based on numerical results according to Espoo in Finland data, the proposed scheme's capability is confirmed in the Economic extraction of a 100% renewable island hybrid system suitable for simultaneous supply of electrical and thermal energy.