Energy and exergy analysis of renewable energy sources-based integrated system for multi-generation application

2017 ◽  
Vol 22 (3) ◽  
pp. 250 ◽  
Author(s):  
Yunus Emre Yuksel ◽  
Murat Ozturk
Keyword(s):  
Renewable Energy ◽  
Exergy Analysis ◽  
Renewable Energy Sources ◽  
Integrated System ◽  
Energy Sources ◽  
Energy And Exergy ◽  
Energy And Exergy Analysis

scholarly journals ENERGY AND EXERGY ANALYSIS OF SUGARCANE INDUSTRY USING FREE SIMULATOR

2016 ◽  
Vol 15 (1) ◽  
pp. 09
Author(s):  
A. L. Vieira ◽  
L. F. Lima ◽  
W. A. S. Conceição ◽  
C. M. G. Andrade
Keyword(s):  
Renewable Energy ◽  
Fossil Fuels ◽  
Exergy Analysis ◽  
Renewable Energy Sources ◽  
Free Software ◽  
Energy Sources ◽  
Economic Problems ◽  
Energy And Exergy ◽  
Energy And Exergy Analysis ◽  
Sugarcane Industry

Due to environmental and economic problems, we need to seek and investigate renewable energy sources. Worldwide, we have a predominant use of energy derived from fossil fuels. In Brazil, much of the energy comes from hydroelectricity. However, it is known that to be dependent predominantly from a main source, could cause logistical problems. A solution to this situation, in Brazil, are sugarcane plants. These plants are normally self-sufficient in terms of energy, but they can still have their energetic and exegetics efficiencies increased. This paper intends to present by simulation (using free software, COCO) that if all machines in the process, steam-powered, were replaced by machines powered by electricity, the yield should increase. We also show that if we replace the turbines by other, working in higher pressures, the energy will have an even greater increase.

Exergy analysis of renewable energy sources

2003 ◽  
Vol 28 (2) ◽  
pp. 295-310 ◽  
Author(s):  
Christopher Koroneos ◽  
Thomas Spachos ◽  
Nikolaos Moussiopoulos
Keyword(s):  
Renewable Energy ◽  
Exergy Analysis ◽  
Renewable Energy Sources ◽  
Energy Sources

The Energy and Exergy Efficiencies of Renewable Energy Utilization in a Building Stock

2013 ◽  
Vol 361-363 ◽  
pp. 335-338
Author(s):  
Xiao Chen
Keyword(s):  
Renewable Energy ◽  
Exergy Analysis ◽  
Hot Water ◽  
Energy Utilization ◽  
Efficiency Improvement ◽  
Building Stock ◽  
Domestic Hot Water ◽  
Energy And Exergy ◽  
Energy And Exergy Analysis ◽  
Heating Mode

An surface water heat pump (SWHP) system and some solar domestic hot water (SDHW) systems were constructed in a building stock located in Xiangtan for the purpose of energy saving and environmental improvement. This study aims to evaluate the energy and exergy efficiencies of renewable energy utilization based on energy and exergy analysis. We found the energy and exergy efficiencies of the SWHP system in heating mode to be 395% and 17.78%, respectively. The energy and exergy efficiencies for the SDHW systems were found to be 34.96% and 17.5%, respectively. Some measures for the exergy efficiency improvement are discussed in this paper.

Energy and exergy analysis of integrated system of ammonia–water Kalina–Rankine cycle

Energy ◽  
2015 ◽  
Vol 90 ◽  
pp. 2028-2037 ◽  
Author(s):  
Yaping Chen ◽  
Zhanwei Guo ◽  
Jiafeng Wu ◽  
Zhi Zhang ◽  
Junye Hua
Keyword(s):  
Exergy Analysis ◽  
Rankine Cycle ◽  
Integrated System ◽  
Ammonia Water ◽  
Energy And Exergy ◽  
Energy And Exergy Analysis

scholarly journals Energy and exergy analysis of dry-steam geothermal power plant: Case study in kamojang geothermal power plant unit 2

2018 ◽  
Vol 197 ◽  
pp. 08018
Author(s):  
Nova Dany Setyawan ◽  
Nugroho Agung Pambudi ◽  
Frandhoni Utomo ◽  
Herman Saputro ◽  
Reza Adiprana ◽  
...  
Keyword(s):  
Renewable Energy ◽  
Power Plant ◽  
Power Plants ◽  
Exergy Analysis ◽  
Research Unit ◽  
Geothermal Power Plant ◽  
Energy And Exergy ◽  
Energy And Exergy Analysis ◽  
Geothermal Power ◽  
The Government

The Government of Indonesia is committed to realize a policy of 35,000 Megawatt (MW) of an additional supply of electricity within 5 years (2014-2019). The projection of this capacity is largely supported by fossil fuel power plants and a small portion of renewable energy. One of the renewable energy which currently has great potential in Indonesia is the geothermal. Therefore, improving the capacity of geothermal is needed to support the policy. The Kamojang is one of the largest geothermal power plant in Indonesia with an installed capacity of 235 MW from 5 generating units. The purposes of this research is to calculate the energy and exergy analysis at Kamojang geothermal power plant. To improve the capacity, exergy analysis can be used by employing the thermodynamic method. In this research, unit 2 of Kamojang's plant is employed. The analysis was examined by using the Engineering Equation Solver (EES) code. The results show the first law of efficiency was calculated at 19.03% and the second law of efficiency at 40.31%.

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