Thermal Analysis and Design Optimization of Multilayer Insulation for Reentry Aerodynamic Heating

2002 ◽  
Vol 39 (4) ◽  
pp. 509-514 ◽  
Author(s):  
Kamran Daryabeigi
Keyword(s):  
Thermal Analysis ◽  
Design Optimization ◽  
Aerodynamic Heating ◽  
Analysis And Design ◽  
Multilayer Insulation

Thermal Analysis and Design of the Cryogenic System for 12 MW Offshore Superconducting Wind Turbine

2013 ◽  
Vol 860-863 ◽  
pp. 242-248
Author(s):  
Xiao Yu Li ◽  
Jie He ◽  
Li Ren ◽  
Meng Song ◽  
Kun Nan Cao ◽  
...  
Keyword(s):  
Finite Element Method ◽  
Thermal Analysis ◽  
Previous Analysis ◽  
Cryogenic System ◽  
Thermal Loss ◽  
Electric Motors ◽  
Large Capacity ◽  
Analysis And Design ◽  
Superconducting Coil ◽  
Multilayer Insulation

Applied superconductivity technology has been thought of being utilized in manufacturing large capacity wind turbines for several years. It is regarded as the only way to minify the volume and mass for large electric motors. Cryogenic system for the generator is fatally important, to create the necessary low temperature maintaining field windings superconducting state. Aiming at designing a reliable cryogenic system for large capacity as 12 MW superconducting generators field winding, in this paper, thermal numerical calculation and analysis for the superconducting coil with cold shield with multilayer insulation (MLI) are done, a dynamic model is established with finite element method (FEM) to verify the previous analysis. Optimization is also done to reduce the thermal loss. Proposal for the numbers of Cryocoolers needed and their layout in generator are given.

Thermally Based Design Optimization of Telecommunication Shelter

2010 ◽  
Author(s):  
Venkata Naga Poornima Mynampati ◽  
Feroz Ahamed Iqbal Mariam ◽  
Bharathkrishnan Muralidharan ◽  
Abhilash Ramachandran Menon ◽  
Dereje Agonafer ◽  
...  
Keyword(s):  
Thermal Analysis ◽  
Design Optimization ◽  
Test Data ◽  
Hvac Systems ◽  
Access Networks ◽  
Wireless Access ◽  
Wireless Access Networks ◽  
Proper Functioning ◽  
Integral Component ◽  
Modular Structures

Telecommunication shelters are generally used for housing the electronic equipments and are an integral component at various levels of wireless access networks. The electronics which dissipate heat needs to be cooled for proper functioning of the equipment. Telecom shelters are generally stand-alone, modular structures with their own electrical HVAC systems. The effect of cabinet’s location in the shelter on temperature is studied. The outline of the paper is to validate the shelter model with the test data available by using CFD tool and perform thermal analysis for different location of 2G cabinets and then, to study the effect of isolation in the shelter. It is observed that the isolation in the shelter attributes to lowering the temperature of the cabinets.

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