Advanced Solar Dynamic Space Power Systems, Part II: Detailed Design and Specific Parameters Optimization

1995 ◽  
Vol 117 (4) ◽  
pp. 274-281 ◽  
Author(s):  
A. Agazzani ◽  
A. Massardo
Keyword(s):  
Power Systems ◽  
Performance Optimization ◽  
Optimization Procedure ◽  
Specific Area ◽  
Combined Cycle ◽  
Parameters Optimization ◽  
Space Applications ◽  
Detailed Design ◽  
Binary Cycle ◽  
Space Power Systems

The aim of this work is the proposal and the analysis of advanced solar dynamic space power systems for electrical space power generation. In the first part of this work (Agazzani and Massardo, 1995) a performance optimization procedure for a SDCC (Solar Dynamic Combined Cycle) and a SDBC (Solar Dynamic Binary Cycle) was presented. Results have pointed out improvements obtainable in terms of conversion efficiency and specific area (m2/kWe), this last estimated in a simplified way. Nevertheless, before drawing conclusions about the superiority of these advanced systems, it is necessary to verify the constructive possibility of the single components of the systems, estimating weights and surfaces, the most significant parameters in space applications. In this second part the design procedures of some components will be discussed in detail; a complete optimization procedure (thermodynamic analysis and detailed design) will be presented with the purpose of minimizing specific area (m2/kWe) and specific mass (kg/kWe). The results obtained are presented, discussed, and compared with the data of a reference optimized CBC system (Massardo, 1993b).

Advanced Solar Dynamic Space Power Systems, Part I: Efficiency and Surface Optimization

1995 ◽  
Vol 117 (4) ◽  
pp. 265-273 ◽  
Author(s):  
A. Agazzani ◽  
A. Massardo
Keyword(s):  
Power Generation ◽  
Power Systems ◽  
Space Station ◽  
Optimization Procedure ◽  
Combined Cycle ◽  
Maximum Efficiency ◽  
Brayton Cycle ◽  
Surface Conditions ◽  
Cycle Systems ◽  
Space Power Systems

The aim of this work is the proposal and the analysis of advanced solar dynamic space power systems for electrical space power generation. The detailed thermodynamic analysis of SDCC (Solar Dynamic Combined Cycle) and SDBC (Solar Dynamic Bynary Cycle) systems is carried out. The analysis is completed with an optimization procedure that allows the maximum efficiency and minimum surface conditions to be obtained. The calculation is carried out for the orbital conditions of the NASA-Freedom Space Station. The results are presented, compared with the data already published for a reference CBC (Closed Brayton Cycle) plant (Massardo, 1993b), and discussed in depth.

scholarly journals A Review of Techniques for RSS-Based Radiometric Partial Discharge Localization

Sensors ◽  
2021 ◽  
Vol 21 (3) ◽  
pp. 909
Author(s):  
David W. Upton ◽  
Keyur K. Mistry ◽  
Peter J. Mather ◽  
Zaharias D. Zaharis ◽  
Robert C. Atkinson ◽  
...  
Keyword(s):  
Power Systems ◽  
High Voltage ◽  
Partial Discharge ◽  
Specific Area ◽  
Electrical Insulation ◽  
Acoustic Detection ◽  
Advantages And Disadvantages ◽  
Initial Stage ◽  
Catastrophic Failures ◽  
Radiometric Detection

The lifespan assessment and maintenance planning of high-voltage power systems requires condition monitoring of all the operational equipment in a specific area. Electrical insulation of electrical apparatuses is prone to failure due to high electrical stresses, and thus it is a critical aspect that needs to be monitored. The ageing process of the electrical insulation in high voltage equipment may accelerate due to the occurrence of partial discharge (PD) that may in turn lead to catastrophic failures if the related defects are left untreated at an initial stage. Therefore, there is a requirement to monitor the PD levels so that an unexpected breakdown of high-voltage equipment is avoided. There are several ways of detecting PD, such as acoustic detection, optical detection, chemical detection, and radiometric detection. This paper focuses on reviewing techniques based on radiometric detection of PD, and more specifically, using received signal strength (RSS) for the localization of faults. This paper explores the advantages and disadvantages of radiometric techniques and presents an overview of a radiometric PD detection technique that uses a transistor reset integrator (TRI)-based wireless sensor network (WSN).

Investigation of Heat Transfer Surfaces for Space Power Systems

2018 ◽  
Vol 65 (7) ◽  
pp. 473-481
Author(s):  
A. Ye. Baranov ◽  
A. Ye. Belov ◽  
D. N. Ilmov ◽  
N. N. Kazantseva ◽  
Yu. N. Mamontov ◽  
...  
Keyword(s):  
Heat Transfer ◽  
Power Systems ◽  
Space Power Systems

Long-Duration Dynamic Space Power Systems Comparison

1964 ◽  
Author(s):  
Richard L. Robinson ◽  
Wolfgang U. Roessler
Keyword(s):  
Power Systems ◽  
Long Duration ◽  
Space Power Systems
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