Method for detecting and evaluating plant emissions
First Claim
1. A method for detecting and evaluating emissions from a plant, comprising the steps of (a) analyzing a composition of the emissions, (b) determining absolute quantities of individual pollutants, (c) presetting limiting averages per a preset measuring interval for individual pollutants, (d) summing the detected pollutant quantities over the preset measuring interval to form actual limiting averages to eliminate fluctuations caused during relatively long periods of plant operation, (e) comparing the actual limiting values with the preset limiting averages, and (f) using an open-loop control to restrict normal running of the plant as a result of at least one of the actual limiting averages exceeding a corresponding preset limiting average after operating the plant for a time period sufficiently long prior to the restricted running to permit control of the emissions.
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Abstract
A method detects and evaluates emissions from plants, in particular from incineration or industrial plants. The absolute quantities of the pollutants are determined at preset intervals and an average over a preset measuring interval is formed therefrom. When a preset limiting average is exceeded, a check is made to determine whether this excess is due to a functional fault of the plant. If so, the plant is switched over to emergency running. If there is no functional fault, the running of the plant is restricted until the average falls again below the limiting average. The pollutant quantities determined are stored and can be utilized for determining levies.
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Citations
10 Claims
- 1. A method for detecting and evaluating emissions from a plant, comprising the steps of (a) analyzing a composition of the emissions, (b) determining absolute quantities of individual pollutants, (c) presetting limiting averages per a preset measuring interval for individual pollutants, (d) summing the detected pollutant quantities over the preset measuring interval to form actual limiting averages to eliminate fluctuations caused during relatively long periods of plant operation, (e) comparing the actual limiting values with the preset limiting averages, and (f) using an open-loop control to restrict normal running of the plant as a result of at least one of the actual limiting averages exceeding a corresponding preset limiting average after operating the plant for a time period sufficiently long prior to the restricted running to permit control of the emissions.
Specification