HIGH PRODUCTIVITY VACUUM BLASTING SYSTEM Page: 2 of 4
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Oct-06-99 06:22A p.03
decontaminated surfaces. This decreases the overall efficiency of the system. A
secondary separator will be designed and tested.
The new blast head is also need to incorporate the sensors for triggering shut-
down when the blast head is taken away from the cleaning surface Sensors are highly
desirable to ensure neither "under or over" cleaning of a given surface arca that result in
loss of production rates, and to perform real-time characterization to determine the
effectiveness of decontamination. The sensors to meet such demands will be developed.
Status and Accomplishments
" Mathematical models and related code to simulate the entire process numerically
simulating air-particle flow in the entire vacuum blasting, which includes,-air-particle
flow in nozzle, separator, and wind curtain were completed. Optimum geometric and
operative parameters for every component of the vacuum blasting system were
proposed. The numerical results show that the productivity and economyy of the
existing vacuum blasting system can be increased by at least 50% when the
recommended configuration of nozzle and dust separator are used.
" Based on the modeling data the design, manufacture, and final testing of a new
innovative rectangular nozzle and a new centrifugal separator have been completed
and tested. The model showed that the experimental results agree with the numerical
estimated data with a deviation within 10%, thus proving the mathematical model
and the model test successful.
" The design of the new blast head/wind curtain with %-inch-equivalent diameter
nozzle
" The concept designs and model selection for two types of blast head sensors for a
radiological characterization and a lift-off have been determined.
Remaining Tasks
* Complete the design and fabrication of the pre-prototype nozzle, blast head with wind
curtain, sensors and test the performance of the new designs under controlled
conditions.
" Based on the results of the pre-prototype component testing performance, design and
fabricate the full High Productivity Vacuum Blasting System.
+ The full-scale prototype will then be tested at a DOE designated facility as to the
system performance, the productivity, and the economy of the improved vacuum
blasting system.
JAN 13 2000 10: 26 304 2854459 PAGE. 14
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Ebadian, Dr. M.A. HIGH PRODUCTIVITY VACUUM BLASTING SYSTEM, article, January 13, 2000; Morgantown, West Virginia. (https://digital.library.unt.edu/ark:/67531/metadc722953/m1/2/: accessed April 26, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.