Review Questions, Problem, Project

List the ways in which it may be possible to increase efficiency (reduce fuel consumption) of an industrial fiimace. 

By locating T-sensors as near to the loads as possible to assure that they are sensing load temperatures, not furnace temperatures. 

A five-zone slab heating furnace had a very high fuel rate because the operators believed it was necessary to maintain the top and bottom preheat zone temperature setpoints (with temperature measurements about 60% through the zone) the same at all production rates. What can be done to reduce fuel rates of such a furnace  

The answer revolves around reducing the flue gas temperature as follows A very expensive solution is to purchase a computer model to adjust temperature setpoints using heating curves. 

Change the location of the control measurement in the top preheat zone from the roof near the flue to 6 to 10 feet toward the furnace discharge. There, it can feel the gas temperature and see the product. 

---

This 6th Edition also includes 3 equations, 20 examples, 54 review questions, 4 problems, and 5 suggested projects. The 199 figures consist of 43 grajdis, 140 drawings and diagrams, and 16 photographs. 

Jim Hall of the University of Massachusetts, Lowell, contributed in many different ways to the success of this project. He has been a tremendous help with the end-of-chapter questions and problems and the cumulative review exercises, along with writing the Solutions Guides, Introductory Chemistry in the Laboratory, and the Instructor s Guide for Introductory Chemistry in the Laboratory. 

Wikipedia is the free internet encyclopedia written by volunteers around the world. The history of the project is thoroughly described on the web page http //en.wikipedia. org/wiki/History of Wikipedia and references within. Here I simply recall that the original project (Nupedia) was to publish on the web an encyclopedia solely edited by experts and with articles subjected to peer review. This organization of the work proved to be too slow (in the first year only 12 articles were completed), so the project switched to voluntary contributions to be edited out with a specific software on a platform open to any internet surfer. As of September 2013, Wikipedia stiU allows anonymous editing contributors are not required to provide any identification, or even an email address. This poses a major question about the reliability of the information provided by Wikipedia and especially it introduces the problem of vandalism (Solarino 2010). The discussion about the quality and reliability of the articles published on Wikipedia is out of the aims of this study the topic has been reviewed by Wikipedia itself and... 

---