Modeling SOFC & GT Integrated-Cycle Power System with Energy Consumption Minimizing Target to Improve Comprehensive Cycle Performance

2012 ◽  
Vol 1 (1) ◽  
Author(s):  
H. A. Ozgoli ◽  
H. Ghadamian ◽  
A. A. Hamidi
Keyword(s):  
Energy Consumption ◽  
Power System ◽  
Cycle Performance

Power System for Beautiful China

2021 ◽  
Vol 144 ◽  
pp. 14-21
Author(s):  
Vladimir P. Polevanov ◽  
Keyword(s):  
Renewable Energy ◽  
Energy Consumption ◽  
Natural Gas ◽  
Power System ◽  
Renewable Energy Sources ◽  
Primary Energy ◽  
Energy Resources ◽  
Energy Sources ◽  
Primary Energy Consumption ◽  
Leading Position

The growth in primary energy consumption in 2019 by 1.3% was provided by renewable energy sources and natural gas, which together provided 75% of the increase. China in the period 2010–2020 held a leading position in the growth of demand for energy resources, but according to forecasts, India will join it in the current decade.

scholarly journals Energy Consumption and Life Cycle Costs of Overhead Catenary Heavy-Duty Trucks for Long-Haul Transportation

Energies ◽  
2018 ◽  
Vol 11 (12) ◽  
pp. 3446 ◽  
Author(s):  
Ivan Mareev ◽  
Dirk Sauer
Keyword(s):  
Life Cycle ◽  
Energy Consumption ◽  
Power System ◽  
Energy Supply ◽  
Life Cycle Costs ◽  
Heavy Duty ◽  
Energy Consumptions ◽  
The Cost ◽  
Total Life

The overhead catenary truck is an interesting technology for long-haul transportation with heavy-duty trucks because it can combine the advantage of energy supply via catenary while driving and the flexibility of a battery truck on routes without catenary using the traction battery. This study investigates the energy consumptions of overhead catenary trucks on German highways and considers different configurations for the traction battery and catenary power system. Afterwards the life cycle costs of overhead catenary trucks are calculated for a specified long-haul transportation scenario and the results are compared to battery electric truck and diesel truck using the findings of a previous study by the authors. The energy consumption of the considered overhead catenary trucks is approximately equal to that of a battery electric truck but only about a half of the equivalent energy consumption of a conventional diesel truck. According to the cost assumptions in this study, the total life cycle costs of overhead catenary trucks can be in the range of the conventional diesel truck, showing the competitiveness of this alternative truck technology.

Analysis of the Zero-Pressure-Difference Point and Determination of the Pump Head in Distributed Power System

2013 ◽  
Vol 353-356 ◽  
pp. 2625-2630
Author(s):  
Yong Zheng Fu ◽  
Ming Liu Xu ◽  
Yang Jiao
Keyword(s):  
Energy Consumption ◽  
Heat Source ◽  
Power System ◽  
Critical Point ◽  
Pressure Difference ◽  
Total Output ◽  
Distributed Power ◽  
Distributed Power System ◽  
Pump Head ◽  
Transmission Energy Consumption

Using pressure diagram to analyze the pressure distribution of distributed power system when the zero-pressure-difference point is in different positions. Conclusions can be drawn as follows: the zero-pressure-difference point should be between the critical point and heat source to eliminate the energy consumption of regulators. And as a result the transmission energy consumption of the system becomes lowest. When the zero-pressure-difference point is in different positions between the critical point and heat source, arrangements of pumps of the system are different. But the total output power of the pumps is the same. The zero-pressure-difference point and the schemes for pump head can be conveniently determined by graphical method like pressure diagram or numerical method.

scholarly journals Planning and Operation of Renewable Energy Power System Based on Energy Internet Technology

2021 ◽  
Vol 252 ◽  
pp. 03008
Author(s):  
Zhang Huichao ◽  
Wang Zhuo ◽  
Wang Han
Keyword(s):  
Renewable Energy ◽  
Energy Consumption ◽  
Power System ◽  
Large Scale ◽  
Technical Problem ◽  
Internet Technology ◽  
Stable Operation ◽  
Energy Internet ◽  
The Sustainable Development ◽  
Energy Consumption Patterns

Under the leaping development pattern of renewable energy brought by carbon emission targets, large-scale wind and solar power in high proportion of renewable energy power system has brought volatility and uncontrollable factors, and generation-grid coordination has become a technical problem for the safe and stable operation. The concept of energy Internet introduces Internet technology into the field of energy consumption application, which provides a new way for the full coupling of various energy consumption patterns, and is an effective method to solve the problem of safe and stable operation of high proportion renewable energy power system. Based on energy Internet technology, this paper designs the sustainable development architecture of generation-grid coordination from three aspects of planning, operation and mechanism, which lays a solid foundation for the development of generation-grid coordination in the future ' two high ' power system.

scholarly journals Optimal Control for Hybrid Energy Storage Electric Vehicle to Achieve Energy Saving Using Dynamic Programming Approach

Energies ◽  
2019 ◽  
Vol 12 (4) ◽  
pp. 588 ◽  
Author(s):  
Chaofeng Pan ◽  
Yanyan Liang ◽  
Long Chen ◽  
Liao Chen
Keyword(s):  
Dynamic Programming ◽  
Energy Consumption ◽  
Power System ◽  
Energy Saving ◽  
Electric Vehicle ◽  
System Efficiency ◽  
Rule Based ◽  
Hybrid Power System ◽  
Hybrid Power ◽  
Simulation Results

In this paper, the efficiency characteristics of battery, super capacitor (SC), direct current (DC)-DC converter and electric motor in a hybrid power system of an electric vehicle (EV) are analyzed. In addition, the optimal efficiency model of the hybrid power system is proposed based on the hybrid power system component’s models. A rule-based strategy is then proposed based on the projection partition of composite power system efficiency, so it has strong adaptive adjustment ability. Additionally. the simulation results under the New European Driving Cycle (NEDC) condition show that the efficiency of rule-based strategy is higher than that of single power system. Furthermore, in order to explore the maximum energy-saving potential of hybrid power electric vehicles, a dynamic programming (DP) optimization method is proposed on the basis of the establishment of the whole hybrid power system, which takes into account various energy consumption factors of the whole system. Compared to the battery-only EV based on simulation results, the hybrid power system controlled by rule-based strategy can decrease energy consumption by 13.4% in line with the NEDC condition, while the power-split strategy derived from the DP approach can reduce energy consumption by 17.6%. The results show that compared with rule-based strategy, the optimized DP strategy has higher system efficiency and lower energy consumption.

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