Daily Question 2015.10.13 (EIA Discussion): 3 Wealth points for replies, plus 5 Wealth points for correct answers (single-choice question)
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This post was last edited by Zhang Xiaopeng on 2015-10-13 at 15:27. In the case of a 10-minute leak of liquid ammonia from a certain pipeline, which modeling approach should be used to calculate the consequences? A) Estimation model B) Multiple plume model C) Segmented plume model D) Gaussian plume model. Correct answer: B. Explanation: There are two key points to consider: the difference between accidental releases and abnormal releases； Technical method, page P18: Abnormal emissions consist of two parts; one is the pollutants generated during normal startup, shutdown, or maintenance of certain equipment ； Second is pollution discharge under other abnormal operating conditions, which refers to the pollution emitted when process equipment or environmental protection facilities do not operate at the levels specified in their design. Since such pollution does not represent the level of discharge during normal operation, it is included in the assessment of abnormal pollution discharge. 2. Accidental pollution discharge: This refers to the release of pollutants under accident conditions, such as explosions or tank leaks... Risk guidelines: For instantaneous or short-duration accidents, the multi-plume model under the aforementioned changing conditions can be used for prediction; for durations exceeding one hour, the segmented plume model is applied, and the Gaussian model is also a type of segmented plume model
For a 10-minute leak of liquid ammonia in a certain liquid ammonia pipeline, the model to be used for calculating the consequences is (C)
For a 10-minute leak of liquid ammonia in a certain liquid ammonia pipeline, the model to be used for calculating the consequences is (C)
B、-------------------------------------------------------------
C. Segmented plume pattern. . . . . . . . . . . . . .
In the case of a 10-minute leak of liquid ammonia from a certain liquid ammonia pipeline, the model to be used for calculating the consequences is (A). A. Estimation model B. Multiple plume model C. Segmented plume model D. Gaussian plume model
In the case of a 10-minute leak of liquid ammonia from a certain liquid ammonia pipeline, the model to be used for calculating the consequences is (C). A) Estimation model B) Multiple plume model C) Segmented plume model D) Gaussian plume model
In the case of a 10-minute leak of liquid ammonia from a certain pipeline, the model that should be used for calculating the consequences is ( ). A. Estimation model B. Multiple plume model C. Segmented plume model D. Gaussian plume model C
The answer is: C, segmented plume pattern
In the case of a 10-minute leak of liquid ammonia from a certain liquid ammonia pipeline, the model to be used for calculating the consequences is (B). A. Estimation model B. Multiple plume model C. Segmented plume model D. Gaussian plume model