Energy Analysis of Cascade Utilization of Dimeite Geothermal Power System in Ruili City

2020 ◽  
pp. 663-675 ◽  
Author(s):  
Liu Shi ◽  
Qiongmei Wang ◽  
Ting Ni
Keyword(s):  
Power System ◽  
Energy Analysis ◽  
Geothermal Power

Simulation of PV and Wind Hybrid Power System

2014 ◽  
Vol 953-954 ◽  
pp. 591-594
Author(s):  
Ze Jia Hua ◽  
Jing Wu ◽  
Ze Ya Mi ◽  
Jia Lei Zhu
Keyword(s):  
Power System ◽  
Energy Analysis ◽  
Dynamic Change ◽  
Reliable Operation ◽  
Operation Condition ◽  
Work Patterns ◽  
Hybrid Power System ◽  
Hybrid Power ◽  
Front End ◽  
System Energy

The PV and wind hybrid power system uses the front-end DC-DC conversion circuit, the system's overall output power is unified deployment and controlled, through elaborating the component characteristics and assessing mathematical model of the actual obtained, more accurately determines operation condition of the system per hour. The system energy analysis of flow and motion makes the system in dynamic change switch from the different forms of work patterns and operation, completing the corresponding control, so as to realize the optimization of system and reliable operation.

scholarly journals Combining brine or CO2 geothermal preheating with low-temperature waste heat: A higher-efficiency hybrid geothermal power system

2020 ◽  
Vol 42 ◽  
pp. 101323 ◽  
Author(s):  
Nagasree Garapati ◽  
Benjamin M. Adams ◽  
Mark R. Fleming ◽  
Thomas H. Kuehn ◽  
Martin O. Saar
Keyword(s):  
Low Temperature ◽  
Power System ◽  
Waste Heat ◽  
Geothermal Power ◽  
Co2 Geothermal

scholarly journals EnergyPlus-Towards the Selection of Right Simulation Tool for Building Energy and Power Systems Research

2021 ◽  
Vol 03 (03) ◽  
pp. 1-1
Author(s):  
Syed Ali Muslim ◽  
Keyword(s):  
Power Systems ◽  
Power System ◽  
Energy Analysis ◽  
State Of The Art ◽  
Building Energy ◽  
Energy Simulation ◽  
District Level ◽  
Level Energy ◽  
Simulation Tool ◽  
Simulation Tools

This article offers the summary of detailed literature review on the state of the art of simulation tools for building energy and power system research. The fundamental capabilities required for building energy and power system analysis tools are outlined. A comparative review of different energy simulation tools is presented, along with the summary of their strengths and weaknesses. A review of energy simulation tool rankings using evidence-based research is presented. A novel aspect of this article is the investigation of the limitations of energy simulation tools for district level energy analysis. A state of the art review of the co-simulation platforms to overcome technical difficulties of multi-domain energy and power systems used for district level energy analysis is presented. This article offering a review of latest developments in the building energy and power system simulation tools to help researchers and industry professional to choose the right platform for building energy and power system design and analysis.

scholarly journals Energy efficiency comparison between geothermal power systems

2017 ◽  
Vol 21 (6 Part A) ◽  
pp. 2633-2642 ◽  
Author(s):  
Chao Luo ◽  
Jun Zhao ◽  
Yulie Gong ◽  
Yongzhen Wang ◽  
Weibin Ma
Keyword(s):  
Binary System ◽  
Power Systems ◽  
Power System ◽  
Power Output ◽  
Energy Utilization ◽  
Water Steam ◽  
Geothermal Power ◽  
Efficiency Comparison ◽  
Net Power Output ◽  
Double Flash

The geothermal water which can be considered for generating electricity with the temperature ranging from 80? to 150? in China because of shortage of electricity and fossil energy. There are four basic types of geothermal power systems: single flash, double flash, binary cycle, and flash-binary system, which can be adapted to geothermal energy utilization in China. The paper discussed the performance indices and applicable conditions of different power system. Based on physical and mathematical models, simulation result shows that, when geofluid temperature ranges from 100? to 130?, the net power output of double flash power is bigger than flash-binary system. When the geothermal resource temperature is between 130? and 150?, the net power output of flash-binary geothermal power system is higher than double flash system by the maximum value 5.5%. However, the sum water steam amount of double flash power system is 2 to 3 times larger than flash-binary power system, which will cause the bigger volume of equipment of power system. Based on the economy and power capacity, it is better to use flash-binary power system when the geofluid temperature is between 100? and 150?.

Comparative technical and economic study of Hybrid Solar-Geothermal Power Plant in Ethiopia

2021 ◽  
Vol 13 (4) ◽  
pp. 296-303
Author(s):  
B. D. Gemechu ◽  
M. E. Orlov
Keyword(s):  
Power Plant ◽  
Power System ◽  
Figure Of Merit ◽  
Power Plants ◽  
Net Present Value ◽  
Economic Assessment ◽  
Geothermal Power Plant ◽  
Hybrid Power ◽  
Hybrid Power Plant ◽  
Geothermal Power

This paper presents a techno-economic assessment of a hybrid solar-geothermal power plant that is modelled taking into account the available geothermal and solar energy resources at the Tendaho-1 (Dubti) geothermal field in Ethiopia. The hybrid power plant combines a single-flash geothermal power plant with a parabolic trough solar thermal plant to increase the energy level of geothermal steam. The geothermal fluid from one of the production wells at the geothermal site and the direct normal solar irradiance prevailing in the area offer the primary sources of energy used in the modelling. A thermodynamic analysis based on the principles of mass and energy conservation and a figure of merit analysis that allows evaluating the energy and economic performance of the hybrid power plant were performed. The technical and economic efficiency assessment was performed by comparing the performances of the hybrid power plant with a power system consisting of stand-alone geothermal and solar power plants. Results of the techno-economic assessment showed that for the same amount of energy inputs, depending on the available thermal energy storage capacity, a hybrid power plant generates up to 10.4% more electricity than a power system of two stand-alone power plants while generating a higher net present value at a lower cost of generation. In addition, the hybrid power plants with and without thermal storage system exhibit an economic figure of merit values of 2.62 and 3.42, i.e. the cost of solar resource per kWh of electricity in the hybrid energy system is reduced by 70.5% and 61.5%, respectively.

Exergoeconomic analysis and optimization of a flash-binary geothermal power system

2016 ◽  
Vol 179 ◽  
pp. 159-170 ◽  
Author(s):  
Yajing Zhao ◽  
Jiangfeng Wang
Keyword(s):  
Power System ◽  
Geothermal Power ◽  
Exergoeconomic Analysis
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