Design and Performance Evaluation of a Double-crystal Monochromator with a Cryogenic Cooling System

2015 ◽  
Vol 65 (2) ◽  
pp. 182-187
Author(s):  
Seongseon YANG ◽  
Dongsu LEE ◽  
Jong-Jae KIM ◽  
Bonghwan KIM*
Keyword(s):  
Performance Evaluation ◽  
Cooling System ◽  
Cryogenic Cooling ◽  
Double Crystal ◽  
Double Crystal Monochromator ◽  
And Performance

Study of the Thermodynamic Processes and Performance Evaluation of Self-Circulation Evaporative Cooling System in Hydro-Generator

2014 ◽  
Vol 488-489 ◽  
pp. 979-982
Author(s):  
Hai Hong Dong ◽  
Lin Ruan ◽  
Shu Qin Guo ◽  
Rui Cao ◽  
Jin Xiu Chen
Keyword(s):  
Performance Evaluation ◽  
Power Loss ◽  
Heat Load ◽  
Cooling System ◽  
Evaporative Cooling ◽  
Second Law Of Thermodynamics ◽  
Evaporative Cooling System ◽  
Cooling Technology ◽  
And Performance ◽  
Thermodynamic Processes

The self-circulation evaporative cooling system (SECS) of stator collector ring is a kind of new cooling technology, utilizing the evaporating of work fluid to cool the stator collector ring of hydro-generator. In this article, the thermodynamic processes of SECS of stator collector ring were analyzed by the second law of thermodynamics. The entropy production and power loss of isolated SECS were analyzed. Based on the distinctive characteristics of SECS, a performance evaluation function was proposed. The influence of heat load on was discussed by simulating. The conclusions provide the theory basis for the application of this new cooling technology.

Initial Operation and Performance Evaluation of the Developed Solar Thermal and Electric Desiccant Cooling System

2011 ◽  
Vol 24 (1) ◽  
pp. 59-87 ◽  
Author(s):  
N. Enteria ◽  
H. Yoshino ◽  
A. Satake ◽  
A. Mochida ◽  
R. Takaki ◽  
...  
Keyword(s):  
Performance Evaluation ◽  
Cooling System ◽  
Solar Thermal ◽  
Initial Operation ◽  
And Performance

Evaluation of Design and Performance of a Cryogenic Mems Micropump Realized with Si-Based Diaphragm Using Combination of Zygo/Wyko Interferometer and Raman Spectroscopy

2003 ◽  
Vol 782 ◽  
Author(s):  
Yi Zhao ◽  
Daryl Ludlow ◽  
Biao Li ◽  
Xin Zhang
Keyword(s):  
Raman Spectroscopy ◽  
Cooling System ◽  
Cryogenic Cooling ◽  
Maximum Deflection ◽  
Good Match ◽  
Micro Raman Spectroscopy ◽  
Micro Pump ◽  
And Performance ◽  
Silicon Based ◽  
The Relationship

ABSTRACTThis paper reports work concerning a silicon-based micro pump for use in a cryogenic cooling system. The diaphragm deflection, which is critical for the control of pumping capacity, was accurately derived using a combination of ZYGO and WYKO interferometer. The relationship between the pumping capacity and differential pressure was further achieved. Stress distribution was obtained using Micro Raman spectroscopy. It was found that Young's modulus derived from the maximum deflection increases with decreasing temperature. The compressive stress concentrates at the edge centers; whereas the tensile stress occurs at the diaphragm center. There is a fairly good match between the theoretical predications and experimental observations.

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