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Tag: control
Video: Analysis of Performance of Alternate Control Configuration
2015-09-17 21:05:00| Chemical Processing
The critical variables are the scrubber duct inlet temperature and the bag house inlet temperature. Both must remain above the dew point at all times. This video examines how these two loops affect each other. To access the entire video series from Cecil Smith, visit our video page. Cecil Smith is president of Cecil L. Smith, Inc., Houston, a firm specializing in automation technology that he founded after leaving the faculty of Louisiana State University. Also cited as one of the 50 most influential people in the field, he teaches courses on control topics and has authored or co-authored 14 books, including Digital Control of Industrial Processes and more than 100 articles. You can email him at cecilsmith@cox.net. He is also one of our experts in our Ask the Experts forum. You can pose your instrumentation and control questions to him here. http://www.chemicalprocessing.com/experts/instrumentation-control/
Tags: video
control
performance
analysis
Video: Commissioning the Alternate Control Configuration
2015-09-17 21:01:00| Chemical Processing
The loops proposed in the previous video complete the alternate control configuration. A previous video also examined tuning the feedback trim controller for the hot air temperature. This video will tune the other three loops. The first issue is the order for tuning the loops. To access the entire video series from Cecil Smith, visit our video page. Cecil Smith is president of Cecil L. Smith, Inc., Houston, a firm specializing in automation technology that he founded after leaving the faculty of Louisiana State University. Also cited as one of the 50 most influential people in the field, he teaches courses on control topics and has authored or co-authored 14 books, including Digital Control of Industrial Processes and more than 100 articles. You can email him at cecilsmith@cox.net. He is also one of our experts in our Ask the Experts forum. You can pose your instrumentation and control questions to him here. http://www.chemicalprocessing.com/experts/instrumentation-control/
Tags: video
control
configuration
alternate
Video: Controls for Hot Air Dampers in Alternate Control Configuration
2015-09-17 20:57:00| Chemical Processing
This video proposes controls for the hot air pressure and the bag house inlet temperature. Interaction is a major concern. Opening either hot air damper decreases the hot air pressure. Opening the hot air damper to bag house inlet increases the bag house inlet temperature. Opening the hot air damper to scrubber duct inlet alters the distribution of hot air so as to decrease the bag house inlet temperature. To access the entire video series from Cecil Smith, visit our video page. Cecil Smith is president of Cecil L. Smith, Inc., Houston, a firm specializing in automation technology that he founded after leaving the faculty of Louisiana State University. Also cited as one of the 50 most influential people in the field, he teaches courses on control topics and has authored or co-authored 14 books, including Digital Control of Industrial Processes and more than 100 articles. You can email him at cecilsmith@cox.net. He is also one of our experts in our Ask the Experts forum. You can pose your instrumentation and control questions to him here. http://www.chemicalprocessing.com/experts/instrumentation-control/
Video: Configuration Issues for PID Blocks in Alternate Control Configuration
2015-09-17 20:48:00| Chemical Processing
When blocks such as summers, selectors, etc., are inserted between the output of the PID block and the final control element, some configuration issues must be addressed for the PID block. To access the entire video series from Cecil Smith, visit our video page. Cecil Smith is president of Cecil L. Smith, Inc., Houston, a firm specializing in automation technology that he founded after leaving the faculty of Louisiana State University. Also cited as one of the 50 most influential people in the field, he teaches courses on control topics and has authored or co-authored 14 books, including Digital Control of Industrial Processes and more than 100 articles. You can email him at cecilsmith@cox.net. He is also one of our experts in our Ask the Experts forum. You can pose your instrumentation and control questions to him here. http://www.chemicalprocessing.com/experts/instrumentation-control/
Tags: video
control
issues
pid
Accelerating PEDV control
2015-09-16 20:27:00| National Hog Farmer
Although the cases of porcine epidemic diarrhea virus have lessened quite a bit since its sudden emergence in the United States in 2013, Joseph Connor, DVM and president of Carthage Veterinary Service Ltd. at the 25th annual Swine Health and Production Conference advised hog farmers to stay vigilant against this production limiting virus. Connor proposes the question to a room full of hog farmers: “Can we eliminate PEDV from North America in 2016?”. read more
Tags: control
accelerating
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