scholarly journals Oxidation‐resistant reflective surfaces for solar dynamic power generation in near earth orbit

1987 ◽  
Vol 5 (4) ◽  
pp. 2737-2741 ◽  
Author(s):  
Daniel A. Gulino ◽  
Robert A. Egger ◽  
William F. Banholzer
Keyword(s):  
Power Generation ◽  
Earth Orbit ◽  
Dynamic Power ◽  
Oxidation Resistant ◽  
Reflective Surfaces

Three Hundred Fifty Volt Photovoltaic Power Generation in Low Earth Orbit

2014 ◽  
Vol 51 (1) ◽  
pp. 379-381 ◽  
Author(s):  
Mengu Cho ◽  
Hirokazu Masui ◽  
Shunsuke Iwai ◽  
Tatsuya Yoke ◽  
Kazuhiro Toyoda
Keyword(s):  
Power Generation ◽  
Low Earth Orbit ◽  
Earth Orbit ◽  
Photovoltaic Power

High-Efficiency Solar Dynamic Space Power Generation System

1991 ◽  
Vol 113 (3) ◽  
pp. 131-137 ◽  
Author(s):  
Aristide Massardo
Keyword(s):  
Power Generation ◽  
Power Systems ◽  
Organic Rankine Cycle ◽  
Rankine Cycle ◽  
Combined Cycle ◽  
Working Fluid ◽  
Brayton Cycle ◽  
Generation System ◽  
Dynamic Power ◽  
Power Generation System

Space power technologies have undergone significant advances over the past few years, and great emphasis is being placed on the development of dynamic power systems at this time. A design study has been conducted to evaluate the applicability of a combined cycle concept—closed Brayton cycle and organic Rankine cycle coupling—for solar dynamic space power generation systems. In the concept presented here (solar dynamic combined cycle), the waste heat rejected by the closed Brayton cycle working fluid is utilized to heat the organic working fluid of an organic Rankine cycle system. This allows the solar dynamic combined cycle efficiency to be increased compared to the efficiencies of two subsystems (closed Brayton cycle and organic fluid cycle). Also, for small-size space power systems (up to 50 kW), the efficiency of the solar dynamic combined cycle can be comparable with Stirling engine performance. The closed Brayton cycle and organic Rankine cycle designs are based on a great deal of maturity assessed in much previous work on terrestrial and solar dynamic power systems. This is not yet true for the Stirling cycles. The purpose of this paper is to analyze the performance of the new space power generation system (solar dynamic combined cycle). The significant benefits of the solar dynamic combined cycle concept such as efficiency increase, mass reduction, specific area—collector and radiator—reduction, are presented and discussed for a low earth orbit space station application.

Latent heat thermal storage for solar dynamic power generation

Solar Energy ◽  
1993 ◽  
Vol 51 (3) ◽  
pp. 169-173 ◽  
Author(s):  
C. Bellecci ◽  
M. Conti
Keyword(s):  
Power Generation ◽  
Latent Heat ◽  
Thermal Storage ◽  
Dynamic Power

scholarly journals An Efficient Testing Scheme for Power-Balanceability of Power System Including Controllable and Fluctuating Power Devices

Designs ◽  
2020 ◽  
Vol 4 (4) ◽  
pp. 48
Author(s):  
Saher Javaid ◽  
Mineo Kaneko ◽  
Yasuo Tan
Keyword(s):  
Power Generation ◽  
Power System ◽  
Power Flow ◽  
Power Level ◽  
Power Source ◽  
Test Method ◽  
Level Control ◽  
Power Devices ◽  
Dynamic Power ◽  
Power Fluctuations

Renewable power sources are environmentally friendly power generation systems, such as wind turbines or photovoltaics; however, the output power fluctuations due to the intermittence and variability of these power systems can greatly affect the quality and stability of the power system network. Furthermore, the power fluctuations that are triggered by power load devices also have similar results on the power system. Therefore, it is essential to introduce power level control for controllable power devices and connection in order to lessen the effects of dynamic power fluctuations that are caused by fluctuating power source devices and load devices. The issue of power balancing as a part of power level control presented in this paper assigns power levels to controllable power devices and connections between power source devices and load devices to absorb dynamic power fluctuations. In this paper, we focus on power conservation law instead of detailed voltage or current-based network characterization and present a new power balanceability test for a power flow system that comprises of both fluctuating and controllable power devices. Our proposed power balanceability test can assure the existence of a power flow assignment of power devices and connections for any value of power generation and/or the consumption of fluctuating power devices. Our proposed power balanceability test method can be expressed as a linear programming problem, and it can be resolved in polynomial time complexity.

Factors influencing electro-fluid dynamic power generation.

1967 ◽  
Vol 4 (8) ◽  
pp. 961-966 ◽  
Author(s):  
HAROLD E. BRANDMAIER ◽  
T. HERBERT DIMMOCK
Keyword(s):  
Power Generation ◽  
Fluid Dynamic ◽  
Dynamic Power ◽  
Factors Influencing
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