Experimental study on the operating characteristics of a capillary pumped loop with a flat evaporator

2010 ◽  
Vol 53 (1-3) ◽  
pp. 268-275 ◽  
Author(s):  
Wukchul Joung ◽  
Hyungjin Hwang ◽  
Jinho Lee
Keyword(s):  
Experimental Study ◽  
Operating Characteristics ◽  
Capillary Pumped Loop ◽  
Flat Evaporator

scholarly journals Pivoted-Pad Journal Gas Bearing Performance in Exploratory Operation of Brayton Cycle Turbocompressor

1968 ◽  
Vol 90 (4) ◽  
pp. 687-696 ◽  
Author(s):  
R. Y. Wong ◽  
W. L. Stewart ◽  
H. E. Rohlik
Keyword(s):  
Experimental Study ◽  
Journal Bearing ◽  
Inert Gas ◽  
Brayton Cycle ◽  
Ambient Conditions ◽  
Operating Characteristics ◽  
The Third ◽  
Loading Device ◽  
Bearing Design ◽  
Gas Bearing

This paper describes findings obtained to date in the area of journal gas bearings from an experimental study of a Brayton cycle turbocompressor designed for the requirements of a two-shaft 10-kw space power system. The journal bearing design utilizes three pads pivoted on conforming balls and sockets. Two of the pivots are rigidly mounted to the frame, and the third pivot is mounted to the frame through a low-spring-rate diaphragm. This paper describes the salient package and bearing design features and then presents the principal results obtained from testing the package in both a spin calibration rig and operation at design temperature conditions with an inert gas. The results discussed include (a) the successful use of a pneumatic loading device to vary pad load during operation, (b) the operating characteristics of the bearings as obtained over a range of pad loads and ambient conditions, (c) structural and dynamic behavior of the bearing-support system during design temperature operation and (d) a discussion of the wear characteristics of the conforming ball-and-socket pivot as obtained from the tests made to date.

scholarly journals The Effect of Sink Temperature on a Capillary Pumped Loop Employing a Flat Evaporator and Shell and Tube Condenser

2001 ◽  
Author(s):  
M. Cerza ◽  
R. C. Herron ◽  
M. J. Harper
Keyword(s):  
Flat Plate ◽  
Heat Input ◽  
Heat Sink ◽  
Cooling Water ◽  
Large Degree ◽  
Heat Fluxes ◽  
Capillary Pumped Loop ◽  
Flat Evaporator ◽  
Conducting Research ◽  
Tube Condenser

Abstract An experimental facility for conducting research on capillary pumped loop (CPL) systems was developed. In order to simulate shipboard cooling water encountered at various locations of the ocean, the heat sink temperature of the facility could be varied. A flat plate, CPL evaporator was designed and tested under various heat sink temperatures. The sink temperature ranged from 274.3 to 305.2 K and the heat input varied from 250 to 800 W which corresponds to heat fluxes up to 1.8 W/cm2. The CPL flat plate evaporator performed very well under this range of heat input and sink temperatures. The main result obtained showed that a large degree of subcooling developed between the evaporator vapor outlet line and liquid return line. This condensate depression increased with increasing heat input.

Experimental study of operating characteristics of compression/absorption high-temperature hybrid heat pump using waste heat

2013 ◽  
Vol 54 ◽  
pp. 13-19 ◽  
Author(s):  
Jiyoung Kim ◽  
Seong-Ryong Park ◽  
Young-Jin Baik ◽  
Ki-Chang Chang ◽  
Ho-Sang Ra ◽  
...  
Keyword(s):  
Experimental Study ◽  
High Temperature ◽  
Heat Pump ◽  
Waste Heat ◽  
Operating Characteristics ◽  
Hybrid Heat Pump

scholarly journals A new concept of upflow clarification in activated sludge separation

1986 ◽  
Vol 13 (5) ◽  
pp. 517-522
Author(s):  
Arthur B. Sparling ◽  
David L. Woytowich
Keyword(s):  
Experimental Study ◽  
Experimental Investigation ◽  
Activated Sludge ◽  
Key Words ◽  
Laboratory Study ◽  
Removal Mechanism ◽  
Operating Characteristics ◽  
Activated Sludge System ◽  
Gravity Sedimentation ◽  
Settling Characteristics

An experimental investigation was conducted to evaluate a new concept of upflow clarification. A novel sludge removal mechanism that used the entire floor area for the removal of solids was incorporated in an upflow clarifier. The operating characteristics and design features of the continuous flux upflow clarifier (CFLUC) are described in detail. The laboratory study was conducted to determine the effectiveness of the CFLUC clarifier in separating sludges with different settling characteristics. The different sludge types were produced by an activated sludge system treating a synthetic dairy waste at four different food to microorganism (F: M) ratios. At low organic loadings (0.10–0.24 (g COD)(g MLVSS)−1 (d)−1), the CFLUC clarifier removed 70% of the pinpoint floe that remained during quiescent batch settling conditions. At high organic loadings (0.41–0.83 (g COD)(g MLVSS) −1 (d) −1), the CFLUC clarifier was capable of separating filamentous bulking sludges with poor settling characteristics. Based on the results of the experimental study the upflow clarifier effectively separated all sludge types over the range of organic loadings investigated. Key words: CFLUC clarifier, secondary clarification, upflow clarification, sludge blanket, bioflocculation, bulking sludge, gravity sedimentation.

Experimental study of capillary pumped loop for integrated power in gravity field

2012 ◽  
Vol 35 ◽  
pp. 166-176 ◽  
Author(s):  
Laurent Lachassagne ◽  
Vincent Ayel ◽  
Cyril Romestant ◽  
Yves Bertin
Keyword(s):  
Experimental Study ◽  
Gravity Field ◽  
Capillary Pumped Loop
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