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Intelligent control system for low emissions and heat loss with maximum lime kiln production.


Application: Mills can better control emissions and gain operating efficiencies, with the help of a process control system.

Process conditions that are the most desirable for environmental protection are not necessarily the most energy efficient. Enhanced process control offers a means of avoiding the generation of preventable emissions, while operating the process at the highest attainable energy efficiency.

This paper summarizes the major results of a field study--with special attention being paid to total reduced sulfur sulfur or sulphur (sŭl`fər), nonmetallic chemical element; symbol S; at. no. 16; at. wt. 32.06; m.p. 112.8°C; (rhombic), 119.0°C; (monoclinic), about 120°C; (amorphous); b.p. 444.674°C;; sp. gr. at 20°C;, 2.  (TRS See traffic engineering methods.

TRS - term rewriting system
) emissions--at UPM-Kymmene's Wisaforest pulp mill A pulp mill is a manufacturing facility that converts wood chips or other plant fiber source into a thick fiber board which can be shipped to a paper mill for further processing.  in western Finland. It describes the structure and main functions of an intelligent supervisory-level control system designed to ensure a low level of emissions and heat losses while maximizing kiln production.

A statistical analysis of the control system, which has been successfully operated at the Wisaforest mill, verified the dynamic performance of the system. The results confirm that the proposed overall control scheme, which takes into consideration both environmental and operational requirements (programming) operational requirements - Qualitative and quantitative parameters that specify the desired capabilities of a system and serve as a basis for determining the operational effectiveness and suitability of a system prior to deployment. , can be realized in practice in an industrial environment. From the ecological ecological

emanating from or pertaining to ecology.


ecological biome
see biome.

ecological climax
the state of balance in an ecosystem when its inhabitants have established their permanent relationships with each
 point of the view, the major quantifiable Quantifiable
Can be expressed as a number. The results of quantifiable psychological tests can be translated into numerical values, or scores.

Mentioned in: Psychological Tests
 benefit was an almost 30% decrease in the average TRS emissions, and a reduction of about 90% in the frequency of peak emission periods. The main economic benefit was an approximate. 3% increase in production capacity.

Furthermore, the plant personnel now have a much more comprehensive understanding of the process. As a result, the operators can review mad enhance their own procedures, and this will most probably bring additional improvements in the future. The experiences gained during the project demonstrate that, through a proper combination of different methods, it is possible to merge knowledge from different sources and at different levels of accuracy. That knowledge can then be applied in a systematic manner for resolving complex and highly demanding industrial-scale control problems.

Jarvensivu is senior consultant, Accenture, Helsinki, Finland; Jamsa-Juonela is acting professor and head of the laboratory of process control and automation, Helsinki University of Technology TKK redirects here. For other uses, see TKK (disambiguation).
Helsinki University of Technology is not to be confused with University of Helsinki.
Helsinki University of Technology (TKK) (Finnish: Teknillinen korkeakoulu; Swedish: Tekniska högskolan
, Finland; Ahava is manager, automation, UPM-Kymmene, Pietarsaari, Finland. Email Jarvensivu at mika.jarvensivu@ aceenture.com
COPYRIGHT 2001 Paper Industry Management Association
No portion of this article can be reproduced without the express written permission from the copyright holder.
Copyright 2001, Gale Group. All rights reserved. Gale Group is a Thomson Corporation Company.

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Article Details
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Title Annotation:Process Control
Author:Ahava, Olli
Publication:Solutions - for People, Processes and Paper
Date:Dec 1, 2001
Words:335
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