Determination of Bus Voltages, Real and Reactive Power Losses in the Northern Nigeria 330Kv Network Using Power System Analysis Tool (PSAT)
Ishaku Bello,
Musa Bukar Umar,
Harrison Oyibo Idakwo
Issue:
Volume 4, Issue 5, October 2016
Pages:
35-43
Received:
16 September 2016
Accepted:
27 October 2016
Published:
17 November 2016
Abstract: The power system analysis and design is generally done by using Load flow studies. The essence of power flow analysis is to find the magnitude and phase angle of voltage at each bus and the real and reactive power flows in each transmission lines. Therefore, load flow analysis is an important tool involving numerical analysis applied to a power system. This analysis is being executed at the stage of planning, operation, control and economic scheduling. Load flow analysis is performed on a symmetrical steady state operating condition of a power system under normal operating condition. This information is essential for the continuous monitoring of the current state of the system and for analyzing the effectiveness of alternative plans for future system expansion to meet increased load demand. For power flow analysis, this research considered the 330KV of northern Nigeria transmission network with a view of estimating the real and reactive power flows, power losses in the entire network and phase angle using Power System Analysis Toolbox (PSAT).
Abstract: The power system analysis and design is generally done by using Load flow studies. The essence of power flow analysis is to find the magnitude and phase angle of voltage at each bus and the real and reactive power flows in each transmission lines. Therefore, load flow analysis is an important tool involving numerical analysis applied to a power sys...
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Modeling and Optimization of a Latent Heat Thermal Storage with Solar Absorption Chiller in Iran
Mohammad Mehdi Keshtkar,
Amin Sheibani
Issue:
Volume 4, Issue 5, October 2016
Pages:
44-49
Received:
20 October 2016
Accepted:
3 November 2016
Published:
25 November 2016
Abstract: The research in this paper focuses on the theoretical modeling and optimization of a solar absorption chiller system with a latent heat thermal storage using phase change material (PCM). At first for modeling the absorption chiller cycle, we use the thermodynamic principles. After that with considering the technical limitations we change this model to a standard mathematical planning model by using exergy analyses. At the second step, the mathematical model will be optimized by a genetic algorithm which is inspired by nature. The optimized parameters of cycle will be calculated accurately by doing this step. These parameters consists of the temperature of essential parts i.e. generator, evaporator, absorber, and condenser. Designing a storage system is necessary for resolving the important problem of sun systems which is not absorbing the light of sun at night. So that in the final step, a cylindrical system for storage of energy sun by using storage technique of thermal energy and PCM is designed. This system is analyzed by the enthalpy and Finite Volume Method which their parameters are, dimensions and type of the PCM.
Abstract: The research in this paper focuses on the theoretical modeling and optimization of a solar absorption chiller system with a latent heat thermal storage using phase change material (PCM). At first for modeling the absorption chiller cycle, we use the thermodynamic principles. After that with considering the technical limitations we change this model...
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