May 29, 2024
Marzie Babaie Rabiee

Marzie Babaie Rabiee

Academic Rank: Assistant professor
Address:
Degree: Ph.D in mechanical engineering
Phone: -
Faculty: Faculty of Engineering

Research

Title
Thermodynamic analysis of a combined cycle based on solar energy with the purpose of power generation and water desalination
Type Thesis
Keywords
تحليل ترموديناميكي، سيكل تركيبي، توليد توان، شيرينسازي آب، سيكل برايتون، سيكل رانكين بخار، سيكل رانكين ارگانيك، سيستم خورشيدي هليوستات و برج خورشيدي، آناليز انرژي، آناليز اگزرژي
Researchers Pedram Yazdan sepas (Student) , Marzie Babaie Rabiee (Primary advisor) , Mohamad Hamed Hekmat (Primary advisor)

Abstract

With population growth, access to energy resources and supplying them to many countries around the world is essential. The use of fossil fuels in order to provide energy causes greenhouse gas emissions that pollute the environment and cause global warming. Also, by reducing freshwater resources, fresh water supply is one of the main challenges in many countries. Therefore, using multigeneration cycles for power and fresh water, which also utilize solar thermal energy, is essential. This thesis examines and thermodynamically analyzes the combined power generation cycle. The cycle includes the Brighton cycle, steam Rankine cycle, and organic Rankine cycle. The thermodynamic analysis will include energy and exergy analysis, which includes mass balance equations, energy balance, entropy generation rate of different parts of the cycle, exergy balance equations, exergy destruction rate of different parts of the cycle, energy efficiency, exergy efficiency, etc. For this purpose, an open Brayton cycle with an air-working fluid has been chosen as the primary cycle. The hot air from the gas turbine is recovered by a heat exchanger and transferred to the steam Rankine cycle that uses water as the working fluid. Next, the organic Rankine cycle with R152a working fluid is added to the studied cycle. In this regard, the effect of combined cycle arrangement in terms of series and parallel, the effect of the internal and external combustion system of the Brayton gas cycle has been investigated. Further, to reduce the amount of fuel consumption, which will result in the reduction of greenhouse gas emissions and environmental pollution, solar energy is used, and the solar system of the heliostat and the solar tower is added to the mentioned cycle. In order to use the waste heat of the cycle and provide fresh water, the water desalination system is added to the final cycle by the humidification dehumidification method. The effect of different configurations of the multigeneration powe