PES membrane offers increased flow-rate and extended service life

2014 ◽  
Vol 2014 (1) ◽  
pp. 8
Keyword(s):  
Service Life ◽  
Flow Rate ◽  
Pes Membrane ◽  
Extended Service

Prospects for Energy Supply of the Arctic Zone Objects of Russia Using Frost-Resistant Solar Modules

2021 ◽  
pp. 149-169
Author(s):  
Vladimir Panchenko
Keyword(s):  
Service Life ◽  
Energy Supply ◽  
Renewable Energy Sources ◽  
General Characteristic ◽  
Scientific Work ◽  
The Arctic ◽  
Arctic Zone ◽  
Ambient Temperatures ◽  
Electrical Generation ◽  
Extended Service

The scientific work is devoted to the prospect of using frost-resistant solar modules with extended service life of various designs for energy supply of infrastructure facilities of the Arctic zone of Russia. The general characteristic of the region under consideration is given, and its energy specifics, directions of energy development based on renewable energy sources are considered. In the work, frost-resistant planar photovoltaic modules and solar roofing panels with an extended service life for power supply of objects are proposed. For simultaneous heat and electrical generation, frost-resistant planar photovoltaic thermal roofing panels and concentrator solar installation with high-voltage matrix solar modules with a voltage of 1000 V and an electrical efficiency of up to 28% are proposed. The considered solar modules have an extended rated power period due to the use of the technology of sealing solar cells with a two-component polysiloxane compound and are able to work effectively at large negative ambient temperatures and large ranges of its fluctuations.

scholarly journals Optimization of Thermal Management System with Water and Phase Change Material Cooling for Li-Ion Battery Pack

Energies ◽  
2021 ◽  
Vol 14 (17) ◽  
pp. 5312
Author(s):  
Quanyi Li ◽  
Jong-Rae Cho ◽  
Jianguang Zhai
Keyword(s):  
Service Life ◽  
Thermal Management ◽  
Flow Rate ◽  
Battery Pack ◽  
Liquid Cooling ◽  
Cooling Performance ◽  
Cooling Pipe ◽  
Thermal Management System ◽  
Battery Packs ◽  
Change Material

The cooling structure of a battery pack and coupled liquid cooling and phase change material (PCM) were designed in a thermal management system to enhance the cooling performance and extend the service life of lithium-ion battery packs. Numerical simulations were conducted based on the finite volume method. This study focuses on factors such as the layout of the terminal, flow rate of the coolant, different sections of the cooling pipe, position of the cooling pipe, and coupled liquid cooling, and investigates their influences on the operating temperature. The results show that a reasonable terminal layout can reduce heat generation inside the batteries. The appropriate flow rate and position of the cooling pipe effectively reduced the maximum temperature and minimized energy consumption. Then, the PCM was placed between the adjacent batteries near the outlet to enhance the uniformity of the battery pack. The temperature difference was reduced to near 5 K. This study provides a clear direction for improving the cooling performance and extending the service life of battery packs.

Seal with extended service life

1985 ◽  
Vol 21 (4) ◽  
pp. 179-180
Author(s):  
V. N. Savoiskii ◽  
A. A. Sachko ◽  
V. A. Bakhmat
Keyword(s):  
Service Life ◽  
Extended Service

High-power rhodamine 6G laser with an extended service life

1983 ◽  
Vol 13 (2) ◽  
pp. 146-150 ◽  
Author(s):  
B A Knyazev ◽  
S V Lebedev ◽  
E P Fokin
Keyword(s):  
Service Life ◽  
High Power ◽  
Rhodamine 6G ◽  
Extended Service

scholarly journals Total Repair Cost Simulation Considering Multiple Probabilistic Measures and Service Life

2021 ◽  
Vol 13 (4) ◽  
pp. 2350
Author(s):  
Yong-Sik Yoon ◽  
Yong-Han Ahn ◽  
Xiao-Yong Wang ◽  
Seung-Jun Kwon
Keyword(s):  
Service Life ◽  
Probabilistic Method ◽  
Repair Process ◽  
Maintenance Cost ◽  
Repair Cost ◽  
Repair Strategy ◽  
Repair Materials ◽  
Probabilistic Measures ◽  
Extended Service

In this study, the total maintenance cost for public houses in South Korea was analyzed, and the effect of each repair process on the total maintenance cost was evaluated with probabilistic and deterministic methods. In the probabilistic method, quality of repair materials and construction skills were considered in the variability of extended service life through repair, while the deterministic method considered it by simple summation of repair step. The repair cost was analyzed considering the coefficient of variation (COV) of extended service life, so the reasonable total maintenance cost was able to be evaluated. Since the results through the probabilistic method provided a continuous cost line, a reasonable repair strategy was carried out by simply changing the intended service life of the structure. The repair cost was additionally analyzed with constant COV (0.15) of each repair process for considering various situations. The analysis results with a COV of 0.15 exhibited a slightly higher maintenance cost than those with current COV. The total maintenance costs can be adjusted if the initial repair timing is extended to the largest possible extent for the highest-repair-cost process since the total repair cost is dominated by the process with the highest repair cost.

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