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Some things I wish I knew
| Content Provider | Semantic Scholar |
|---|---|
| Author | Dedrick, Dallas S. |
| Copyright Year | 1978 |
| Abstract | It has been my good fortune to have been associated with a basic drying program conducted within the Weyerhaeuser Company for many years both as an employee and as a consultant. During those years I have been permitted to test many concepts and to develop those which appeared to be promising. Some worthwhile and economically favorable results were obtained and I feel justifiably proud to have been associated with them. There is no question but that the concept of the use of continuously rising entering air dry bulb temperature represents a forward step which has significant economic merit in the drying of most dimension lumber, particularly Douglas fir, western hemlock and the Southern yellow pine species. This is attested by statements by Weyerhaeuser management that corporate adoption of CRT in the drying of softwood dimension lumber is netting the Company in excess of six million dollars per year. The potential of establishing kiln conditions by specifying drying rates in terms of the dry bulb temperature drop across the load of lumber is exciting, and I hope to have the opportunity to assist in solving the kiln design and instrumentation problems to permit kiln control by the so-called Delta I method. As every research man knows, the results of his studies may be divided into three groups. First, there are the many failures resulting from ideas that didn't quite pan out. Second, there is that one success or promising result. And third, there is the list of questions that has accumulated during the study--generally questions that could not have been asked at the beginning because of lack of familiarity with the field. In many cases, the accumulated questions represent the most important result of the research because these questions determine the next stages of the study. I should like to share with you some of the questions that have occurred to me. I feel that some of these questions, at least, have a bearing on the bettering understanding of the mechanism of drying, and that their answers might be applied to more economical drying practice. I wish to be clearly understood at the beginning that I do not lay claim to have been the first person to have asked these questions. Neither do I believe that because I do not know the answers, no one else does. Lumber drying has been the subject of intensive study by many capable individuals in federal and state forest products laboratories, educational institutions and industry. Several of the more productive researchers in the field are in attendance at this meeting. It is highly probable that my questions have been asked by others and that perhaps many of them have been answered in the laboratory--or proven to be irrelevant. Some of my questions are shared by the research staff of Weyerhaeuser Company where work on basic drying continues and are therefore proprietary. Others relate to confidential problems of clients. Among permissible topics for open discussion are the following. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | https://ir.library.oregonstate.edu/downloads/gh93h048m?locale=en |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
