Essays on Rankine Cycle

Use of Fossil Fuels for Power Generation and the Need for Renewable Energy

According to Nelson (2011), more than 85% of the world’s energy consumption, which is estimated at 520 exajoules, is generated through the burning of fossil fuels such as petroleum, natural gas and coal (p.19). Electric power generation from non-renewable sources will, unequivocally, result in their exhaustion and creation of a major energy crisis. For this reason, it appears primordial to shift in a greater scale to alternate power generation, such as solar, wind, hydroelectric, etc. Amongst these, Sorensen (2011) explains that though hydroelectric power does represent one of the major forms of power generation, its growth is stagnant ...

Introduction

The fundamental process of thermal power plants is based on the conversion of thermal energy into mechanical energy and, subsequently, into electric power, using steam as the working fluid. According to the U.S. Energy Information System, over 67% of the electrical energy in the United States is generated through thermoelectric power plants, which use the combustion of fossil fuels such as natural gas, coal and petroleum to generate the steam necessary for the process; moreover, thermoelectric power generation accounts for an approximate 80% of all the power generation worldwide. Thus, the electricity consumed in most homes and industries is ...

Omer Bese

Supervised Asst. Prof. Fusun Tut Haklidir

Energy Systems Enginering

Istanbul Bilgi University 2014

LIST OF FIGURES

LIST OF TABLES LIST OF SYMBOLS/ABBREVIATIONS 1. Introduction 3 1.1. Goal of the Study 3 1.2. Renewable Energy Sources 3 1.3. Geothermal Energy 3 1.3.1. What is Geothermal Energy? 3 1.3.2 Geothermal Reservoirs 4 1.3.3 Present Status of Geothermal Energy 7 1.4 Geothermal Applications around the World 7 1.4.1Geothermal Applications in Turkey 8

Flash steam power plants 10

Single Flash 10 Double Flash 11 Triple Flash 11 Binary Steam Power Plants 11 Binary Cycle Types and Differences 11 ...

Organic Rankine cycle (ORC) is a power generation cycle that converts the available heat energy to mechanical work via turbine that drives the generator to produce electricity. Unlike typical Rankine cycles that use steam as the working fluid, Organic Rankine cycles (ORC) use an organic working fluid for instance, isooctane and isopentane, isobutane amongst others. The boiling points of these organic fluids are less than that of water. Thus, ORC makes it possible to extract power from waste heat in industrial processes. They are also used in most geothermal power plants of low entropy . A typical Organic Rankine cycle ...

Affiliated institution

Geothermal Binary Rankine Cycles Abstract This report is for a LOW-BIN (Efficient Low Temperature Geothermal project. The main objective is to study and recommend specific optimal Rankine cycles using water as the primary source of heat. The water is at a temperature of 1600C. This Rankine cycle is using R134 as working fluid for the geothermal power machine. This project is supposed to generate electricity from low temperature resources with profitable operation down up to around 600C. The main Rankine Cycle parameters and components are idealized. This is as found in the shell, the tube condenser and the heat ...