scholarly journals Hospital waste shredder test series at the DONLEE Pilot Test Facility

1992 ◽  
Author(s):  
Robert Hoffman ◽  
James Sak
Author(s):  
K. K. Botros ◽  
J. Geerligs ◽  
A. Glover ◽  
G. Nahas

A procedure for pressure testing of small diameter pipelines (up to NPS 12) using air has been developed based on pilot test results conducted on a controlled simulated test section of a small volume = 18.5 m3. This paper describes the simulated test facility and presents results of five simulated tests with different size pinhole leaks. A model describing leaks and effects of variation in air temperature has been developed, and together with the test results, a criteria for the upper limit of pipe volume to leak area ratio for implementation of air testing for various pipe sizes, has been arrived at. The procedure was then developed and utilized on a project approved by the Alberta Energy Utility Board. Results of this test on a new 12.2 km NPS 8 pipeline lateral in Alberta are also presented.


Geosciences ◽  
2018 ◽  
Vol 8 (12) ◽  
pp. 482 ◽  
Author(s):  
Christopher Massolle ◽  
Lena Lankenau ◽  
Bärbel Koppe

In operational flood defense, it is common practice to use sandbag systems. However, their installation is time-consuming as well as material- and labor-intensive. Sandbag replacement systems (SBRSs) can be installed in significantly shorter time and with less effort. However, owing to the lack of confidence in their functionality, they are only used to a limited extent. Testing and certifying such innovative systems according to defined criteria is supportive in promoting their use in flood defense. In order to test SBRSs and as a first step toward systematic tests, the Institute for Hydraulic and Coastal Engineering of the Bremen University of Applied Sciences, Germany (IWA) has set up a test facility in which defined test series can be carried out with different SBRSs on an underlying surface of turf. The focus of the test series is on installation time, possible water head, system stability, and seepage rates when in use. A conventional sandbag dam was used as reference in order to compare the test results with the different SBRSs. Test series show that damming with SBRSs has a clear advantage over the use of sandbags in terms of the time it takes to put them in place and comparable values of seepage rates and water heads. In order to professionally promote the spread of SBRSs in operational flood protection, it is recommended to introduce the certification of SBRSs, since they are technical systems whose functional capability must be proven before their use in an emergency. Together with existing international certification schemes, the test series that were carried out deliver a basis for developing a specific testing scheme for SBRSs.


2010 ◽  
Vol 18 (1-3) ◽  
pp. 126-132 ◽  
Author(s):  
Diego C. Alarcón-Padilla ◽  
Lourdes García-Rodríguez ◽  
Julián Blanco-Gálvez
Keyword(s):  

Author(s):  
Jared M. Crosby ◽  
Scott Lewis ◽  
Jeffrey P. Bons ◽  
Weiguo Ai ◽  
Thomas H. Fletcher

Four series of tests were performed in an accelerated deposition test facility to study the independent effects of particle size, gas temperature, and metal temperature on ash deposits from two candidate power turbine synfuels (coal and petcoke). The facility matches the gas temperature and velocity of modern first stage high pressure turbine vanes while accelerating the deposition process. Particle size was found to have a significant effect on capture efficiency with larger particles causing significant thermal barrier coating (TBC) spallation during a 4 h accelerated test. In the second series of tests, particle deposition rate was found to decrease with decreasing gas temperature. The threshold gas temperature for deposition was approximately 960°C. In the third and fourth test series, impingement cooling was applied to the back side of the target coupon to simulate internal vane cooling. Capture efficiency was reduced with increasing mass flow of coolant air; however, at low levels of cooling, the deposits attached more tenaciously to the TBC layer. Postexposure analyses of the third test series (scanning electron microscopy and X-ray spectroscopy) show decreasing TBC damage with increased cooling levels.


Author(s):  
T. Hoehne

The need of experiments for validation of the computational tools to analyze the mixing of diluted slugs has been recognized in various countries. The test series performed at the UM2×4 loop test facility for the International Standard Problem ISP-43 provides a platform for experiences to be applied to the simulation of a well-defined test series. Test A was calculated with the CFD Code CFX-4.3. The results of the calculation show qualitatively good agreement with the experimental data. The structure of the flow field and the form of the propagating temperature perturbation front are well modeled by the CFD code. However, deviations occur at local positions. Comparative calculations with and without taking into account buoyancy have shown, that buoyancy effects are noticeable, but the mixing is mainly momentum controlled.


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