Infinity Turbine LLC


Publication Title | Increasing Electricity generation By Using Organic Rankine Cycle (ORC) Through the Fluegas of Boilers as a Heat Source

Organic Rankine Cycle

Waste Heat to Power ORC search was updated real-time via Filemaker on:

Waste Heat to Power ORC | Return to Search List

Search Completed | Title | Increasing Electricity generation By Using Organic Rankine Cycle (ORC) Through the Fluegas of Boilers as a Heat Source
Original File Name Searched: JMESTN42350114.pdf | Google It | Yahoo | Bing



Page Number: 001
Previous Page View | Next Page View

Text | Increasing Electricity generation By Using Organic Rankine Cycle (ORC) Through the Fluegas of Boilers as a Heat Source | 001



Journal of Multidisciplinary Engineering Science and Technology (JMEST) ISSN: 3159-0040 Vol. 1 Issue 4, November - 2014

Increasing Electricity generation By Using Organic Rankine Cycle (ORC) Through the Fluegas of Boilers as a Heat Source

Omid Rowshanaie* 1, Saari Bin Mustapha2, Kamarul Arifin Ahmad3, Hooman Rowshanaie4

1 University Putra Malaysia, Department of Chemical Engineering, Serdang, Malaysia

2 University Putra Malaysia, Department of Chemical and Environmental Engineering, Serdang, Malaysia 3 University Putra Malaysia, Department Of Aerospace Engineering, Serdang, Malaysia

4 University Putra Malaysia, Serdang, Malaysia omid.rowshanaie@gmail.com

Abstract— At the moment generating a large-scale electricity power from power plants especially thermodynamic cycles such as Organic Rankine Cycle (ORC) is becoming a controversial obstacle in related studies. In present ORC thermodynamic cycle, R245fa, NOVEC700, and R141b as refrigerant working fluids sent to a Heat Exchanger then sent to an Expander to produce electricity. Finally, the remaining working fluids are condensed by a Cooler and it is sent back to the ORC thermodynamic cycle. Current study is conducted and analyzed the net power output of Expander, the maximal net power output of ORC, the value of heat transfer between Fluegas to each working fluids at Heat Exchanger, the total heat transfer capacity (UA)total, and compare between the optimum pressure of working fluids at inlet of Expander and temperature of working fluids at inlet of Expander, which R141b has a highest amount compare with R245fa, and NOVEC7000. Whereas, with increasing the optimum pressure of working fluids at inlet of Expander, the temperature of working fluids at inlet of Expander is increasing slightly, because the optimum pressure of working fluids at inlet of Expander has a more effect on amount of electricity generated by Expander and as a result on the net power output of ORC.

Keywords— Organic Rankine Cycle (ORC); Working fluid; R245fa; NOVEC7000; R141b; Fluegas

I. INTRODUCTION

Nowadays the oil price is dramatically increasing and this phenomenon due to the all economic obstacle in all over the world especially China, India, and Iran, On the other hand, the governments try to apply the greenhouse gases that produce from boilers such as Fluegas to increase the efficiency of fossils fuels and decrease the negative aspects of these kinds of gases such as worldwide disaster as same as global warming and also air pollution; in addition, the grade of temperature of these type of gas is a little bit high, therefore we can use this type of gases as heat source in some

thermodynamic effective cycles [1–3]. For achieving these objectives, can be proposed and conducted various thermodynamic cycles such as the Organic Rankine Cycle, Supercritical Rankine Cycle, Kalina Cycle, Goswami Cycle, Trilateral Flash Cycle, and Transcritical Rankine Cycle which driven by a number of refrigerant working fluids and they simulate and carried out for conversion of low-grade heat sources in to electricity [4]. The most and famous examples of these effective thermodynamic cycles are: TRC (Transcritical Rankine Cycle), Kalina cycle, and ORC (Organic Rankine Cycle) have been proposed to convert low temperature thermal energy into power [5]. The ORC thermodynamic cycle is capable to convert low-grade waste heat source to electric power. The focus of recent researches has been on solar energy, biomass energy, geothermal resources, power plant waste heat, and Fluegas of boilers [6-9]. The lower and medium temperature of heat source of ORC (<3000C) can cause to higher thermal efficiencies, reliability and flexibility as well as simpler control and lower maintenance costs for more economical and effective [10-14]. The Organic Rankine Cycle (ORC) applies the principle of the Steam Rankine Cycle, but uses organic working fluids with low boiling points to recover heat from lower temperature heat sources instead of water as a working fluid. ORC thermodynamic cycle has a number of advantages such as; its simple structure, the availability of its components, the easiness of its application to local small-scale power generation systems, and driven by low-grade heat sources which has a temperature lower than 370 0C and below this temperature called low-grade temperature in industry [15-19].

Selecting the best and suitable working fluid for ORC thermodynamic cycle with considering the normal operating condition has more important to achieve the best efficiency and more economical electric generation

JMESTN42350114

www.jmest.org

161

Image | Increasing Electricity generation By Using Organic Rankine Cycle (ORC) Through the Fluegas of Boilers as a Heat Source



increasing-electricity-generation-by-using-organic-rankine-cycle-orc-through-fluegas-boilers-as-heat-source
Waste Heat to Power - ORC - - Waste Heat to Power System - Go to website

Search Engine Contact: greg@infinityturbine.com