EXPERIMENTAL STUDY ON HYDRAULIC PROPERTIES OF MANHOLES IN A SURCHARGED SEWER PIPE SYSTEM

2020 ◽  
Vol 76 (2) ◽  
pp. I_451-I_460
Author(s):  
Hao ZHANG ◽  
Kenji KAWAIKE ◽  
Shoji OKADA ◽  
Taku FUJIWARA
Keyword(s):  
Experimental Study ◽  
Hydraulic Properties ◽  
Sewer Pipe ◽  
Pipe System

Sector Rotating Heat Pipe With Interconnected Branches and Reservoir for Turbomachinery Cooling

2016 ◽  
Vol 139 (1) ◽  
Author(s):  
Brian Reding ◽  
Yiding Cao
Keyword(s):  
Experimental Study ◽  
Heat Pipe ◽  
Heat Pipes ◽  
High Heat ◽  
Heat Fluxes ◽  
Practical Solution ◽  
Pipe System ◽  
Current Configuration ◽  
Cooling Technique

Heat pipe technology offers a possible cooling technique for structures exposed to high heat fluxes, as in turbomachinery such as compressors and turbines. However, in its current configuration as single heat pipes, implementation of the technology is limited due to the difficulties in manufacturability and costs. Hence, a study to develop a new radially rotating (RR) heat pipe system was undertaken, which integrates multiple RR heat pipes with a common reservoir and interconnected braches for a more effective and practical solution to turbomachinery cooling. Experimental study has shown that the integration of multiple heat pipe branches with a reservoir at the top is feasible.

An Experimental Study on the Influence of Structural Damping on Internal Fluid Pressure During a Transient Flow

1990 ◽  
Vol 112 (3) ◽  
pp. 284-290 ◽  
Author(s):  
D. D. Budny ◽  
F. J. Hatfield ◽  
D. C. Wiggert
Keyword(s):  
Experimental Study ◽  
Transient Flow ◽  
Traditional Approach ◽  
Dynamic Pressure ◽  
Fluid Pressure ◽  
Piping System ◽  
Internal Dynamic ◽  
Structural Damping ◽  
Pipe System ◽  
Internal Fluid

The traditional approach to designing a piping system subject to internal dynamic pressure is to restrain the piping as much as possible, and the approximation made in the analysis is to assume no contribution of structural energy dissipation. To determine the validity of this concept and approximation, an experimental study of a piping system was performed to measure the influence of structural damping. A pipe system was designed with a loop that could be turned so that its natural frequency would match that of the contained liquid. It was discovered that a properly sized damper on the piping loop greatly accelerates the decay of the fluid pressure transient. The damper absorbs some energy from the piping, reducing the resulting rebound fluid pressure. When the loop is subjected to forced steady-state vibration, there is a fluid pressure response. The amplitude of that pressure can be reduced by installing an external damper: the stiffer the damper the more effective it is in reducing dynamic pressure.

Hydraulic properties of 3D rough-walled fractures during shearing: An experimental study

2017 ◽  
Vol 555 ◽  
pp. 169-184 ◽  
Author(s):  
Qian Yin ◽  
Guowei Ma ◽  
Hongwen Jing ◽  
Huidong Wang ◽  
Haijian Su ◽  
...  
Keyword(s):  
Experimental Study ◽  
Hydraulic Properties

Experimental Study of the Eigenfrequency Shift Mechanism in a Blocked Pipe System

2017 ◽  
Vol 143 (10) ◽  
pp. 04017044 ◽  
Author(s):  
Moez Louati ◽  
Silvia Meniconi ◽  
Mohamed S. Ghidaoui ◽  
Bruno Brunone
Keyword(s):  
Experimental Study ◽  
Pipe System
Sign in / Sign up

Export Citation Format

Share Document