Evaluation of the Power Generation Efficiency of a Hot Spring Heat Binary Power Generation System

2016 ◽  
Vol 42 (2) ◽  
pp. 76-82
Author(s):  
Akira Saito ◽  
Yuta Sasaki ◽  
Kazuhide Kimbara ◽  
Masao Sudou
Keyword(s):  
Power Generation ◽  
Hot Spring ◽  
Generation System ◽  
Generation Efficiency ◽  
Power Generation System

Preliminary Research of a Zero CO2 Emission Power Generation System

2010 ◽  
Author(s):  
Jing-yu Ran ◽  
Chang-lei Qin
Keyword(s):  
Power Generation ◽  
Co2 Emission ◽  
Generation System ◽  
Emission Power ◽  
Generation Efficiency ◽  
Technical Problems ◽  
The Earth ◽  
Emission System ◽  
Power Generation System ◽  
Power Generation Systems

CO2 is a main greenhouse gas fazing the Earth. So countries around the world are actively studying the methods of capturing CO2 to reduce emission. In this paper, firstly a brief review was carried out on the research development and technical problems of three typical near-zero CO2 emission power generation systems. Focus was made on the construction of one possible commercially applied zero emission system, which has new principle but relatively conservative sections. Preliminary analysis and calculation of energy and mass flow have been finished to evaluate its performance. The results showed that apart from zero CO2 emission, a relatively tempting efficiency could be sustained. Theoretically, higher than 90% purity of CO2 and 63% generation efficiency of the whole system can be achieved.

PV Cells Power Generation System Modeling Based on Heat Energy Efficiency

2014 ◽  
Vol 986-987 ◽  
pp. 1977-1983
Author(s):  
Feng Feng Li ◽  
Qiu Xuan Wu ◽  
Li Juan Huang ◽  
Yu Jie Huang
Keyword(s):  
Power Generation ◽  
Energy Efficiency ◽  
Photovoltaic Cell ◽  
Utilization Efficiency ◽  
System Model ◽  
Generation System ◽  
Generation Efficiency ◽  
Photovoltaic Power ◽  
Environment Temperature ◽  
Power Generation System

Temperature is one of the important factors affecting the power generation efficiency of PV cells. In order to improve the efficiency of photovoltaic power generation systems and heat utilization efficiency, we used Matlab/Simulink to build photovoltaic power system analysis model based on thermal power. By changing the heat and illumination input to the photovoltaic cell model and the heat generated by the battery we got the characteristics and temperature characteristics of the photovoltaic cell the system model, the photovoltaic power generation system model and the output power correction, etc. We got the environmental temperature change equation through the actual air temperature and curve fitting and used real and detailed data to compare the data obtained using the equation for online correction. PV cells temperature factor was used to get the PV cells temperature with the environment temperature changes. In order to get PV module thermal /energy efficiency the dates was processed and analyzed by using Matlab and Excel through actual observation data of school 120KW PV power station. The results showed that power generation efficiency increased and year average efficiency PV improved 21.3279% through the use of some heat about PV cells.

Analysis of a 3 kW PEM Fuel Cell Stack Developed by ITRI

2004 ◽  
Author(s):  
M. H. Tsai ◽  
Y. Y. Yan ◽  
H. S. Chu ◽  
R. J. Shyu ◽  
F. Tsau
Keyword(s):  
Power Generation ◽  
Fuel Cell ◽  
Operating Temperature ◽  
Hot Water ◽  
Water Tank ◽  
Water Recovery ◽  
Generation System ◽  
Generation Efficiency ◽  
Fuel Cell Stack ◽  
Power Generation System

A 3kW PEMFC power generation system is developed by Energy and Resources Laboratories in 2002. This system integrates hydrogen storage, fuel reformer, power conversion, hot water tank as well as a 3kW PEMFC stack. The power generation efficiency at 30% and total energy efficiency with hot water recovery at 67% are designed. The stack is key component of this system, and its performance is tested and analyzed before it is integrated into the system. This paper presents its performance in I-V polarization curves with controlling parameters such as fuel cell operating temperature, air humidity, hydrogen humidity and stoichimetric ratio of air. Detailed discussions are given for the effect of each parameter on stack’s performance.

scholarly journals 208 Effect of natural media as the working fluid in a hot spring power generation system

2006 ◽  
Vol 2006.42 (0) ◽  
pp. 47-48
Author(s):  
Chisako KIRIHARA ◽  
Gen YOSHIDA ◽  
Yoshiharu AMANO ◽  
Takumi HASHIZUME
Keyword(s):  
Power Generation ◽  
Hot Spring ◽  
Working Fluid ◽  
Generation System ◽  
Power Generation System ◽  
Natural Media

Study on the High Efficiency Closed Cycle Gas Turbine System

2001 ◽  
Author(s):  
Eiichi Koda ◽  
Toru Takahashi ◽  
Kazuo Uematsu ◽  
Hideaki Sugishita ◽  
Katsuya Yamashita ◽  
...  
Keyword(s):  
Power Generation ◽  
High Efficiency ◽  
Early Stage ◽  
Maximum Temperature ◽  
Target System ◽  
Pure Hydrogen ◽  
Closed Cycle ◽  
Generation System ◽  
Generation Efficiency ◽  
Power Generation System

In WE-NET project Phase I Program, the power generation system with more than 60%(HHV) thermal efficiency had been designed. However, because this system must be fueled by pure hydrogen, commercialization of this system in early stage is thought to be difficult. Therefore, the new project, in which the natural gas fueled system is targeted, has been started since FY1999. In this project, the power generation efficiency is aimed to be 60%(HHV) or higher, with turbine inlet maximum temperature of 1973K. In this report, the feature of the target system is explained at first. Then, the sensitivities of many parameters are examined in detail.

Technical, Economic, and Environmental Assessment of PEFC Power Generation System Using Surplus Hydrogen Produced From an Oil Refinery

2017 ◽  
Vol 14 (4) ◽  
Author(s):  
Takahide Haneda ◽  
Atsushi Akisawa
Keyword(s):  
Power Generation ◽  
Cost Reduction ◽  
Storage Tank ◽  
Oil Refinery ◽  
Generation System ◽  
Generation Efficiency ◽  
Steam Reformer ◽  
System Cost ◽  
Initial Cost ◽  
Power Generation System

The potential of an energy system that comprises hydrogen-fueled polymer electrolyte fuel cells (PEFCs), a steam reformer, and a hydrogen storage tank, using surplus hydrogen produced from an oil refinery, was evaluated using a mathematical model based on linear programming. The aim of this study was to optimize the capacity of the hydrogen-fueled PEFC, the hydrogen production of the steam reformer, and the utilization amount of the hydrogen storage tank in order to minimize the total system cost. Based on the optimization results, the system cost reduction and CO2 emission reduction effects were calculated in relation to the power generation efficiency and the installation cost of the hydrogen-fueled PEFC. As a result, the conditions for the hydrogen-fueled PEFC where a system cost reduction could be achieved in the PEFC power generation system, compared with the conventional system, were shown to be an initial cost lower than 3000 $/kW for a power generation efficiency of 50% or an initial cost lower than 5000 $/kW for a power generation efficiency of 65%.

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