Document 0Lok7vDeJqDJr36ndQdGeg2qm

FILE NAME: Power Generation (POW) DATE: 1935 Sept DOC#: POW022 DOCUMENT DESCRIPTION: Editorial-Trade Journal  c>peiii 1935 M odern P ower and E ngi neeri ng 13 \ /1UCH attention is at present 1 being focussed on the sub ject of air conditioning and, although it has for some time been recognized as beneficial for patron comfort in restaurants and theatres, it is now being realized that it is almost a necessity in industries having alarge dust menace such as foundries. .The first article this month describes, briefly 'what **> air conditioning is and what is KS required fo r' fully `conditioned air. VfS-jfc.' J.* V _ Q_ N E industry which requi^.s* conditioned air in the m anu-,^ facturing process is the silk industry. Two interesting units' ^ have recently been installed in the plant of Weldrest Hosiery Ltd., Mount Dennis. One of these units supplies hot humid air, while the second supplies humid air at a temperature of about 18 deg. F. The method and equipment' employed for both these conditions is fully de scribed. QPERATION costs''o f Diesel engines is a subject about which the average engineer knows very little. Although the Diesel engine is rapidly gaining favor as a prime mover in the Canadian field, its progress may be slightly retarded due to this ignorance of costs. The subject is fully dealt with in the Diesel section. & gTILL another industry which requires conditioned air is the brewing industry, where an even temperature is required in order to maintain a standard quality. The equipment used and the method of installation of the equipment and ducts forms an interesting article. In ThisIssue Less Than the D u s t............................................................................. 15 Conditioning Air for Comfort and Industry................................... 16 B y William C. Oke, Sheldons Ltd. "Fine as Silk" But Air Conditioned............ ............................. . . . 18 Air Conditioning in an Ale Brewery . . . - . .................................... 19 By C. P. Creighton and F. J. Friedman Library Coal Bill Cut 22% .......... ..................... V.........23 - Unload S:cot-cvh F...i..r..e..bricksv i*;..>: ... .'iW.".. . Ford Air Conditions Foundry . . M * Gasoline-Cooled Motor . . i . . . i . t :c & *:.<- -'V; i r -./ ..e-.- ----- .Specialized Refractories e've^ji/em e m trim f iB y J. A. King, Carborundum C o /' i. .'. . j : . i . . . . 26 ........ .. 26 . . ....27 "Vm^m 'mje^^m-m'm m m 28 New Power Plant Equipment . J . ' . i f '. 30 Colored Valve Wheels Pulverizing Unit . , ... " i . , Air-Operated Controller ' ' Operation Costs in the Diesel F ie ld ........................ .................. 32 By J. Ander, Manager, Diesel Engine Division, Canadian SKF Co. Testing Refrigeration Equipment . / . . . . : .......... .. .......... ........... 38 Coal Tar as Boiler F u e l___ .. . ' ........... ~............... ............................ 40 Established 1907. (Formerly F o u st Bouse). Published M o d e l'll P o w e i' Monthly. Fostering economy . in Steam. Oil and Hydro Elsc'Utrie Power ;Deoeloyment. B. G. NEWTON. Manager. ^Engineering . " W. C. DICK. with which "Heat and Power" was combined in May,'1933 . , Advertising -Manager. CANADA -- Toronto (Head Office), 481 Uni versity Ave., Telephone Adelaide 91SJ.. 1 , v Montreal Representative--J. L. Craig, Domin ion Square Bldg., 1010 St. Catherine St. West; Telephone, Lancaster 7181-7182. . ~ u Room 228, 1900 Euclid Ave., Cleveland. Ohio; 14151 Sussex Ave.,, Detroit, Mich. / GREAT BRITAIN--London; The MacLean Company o t Great Britain, Ltd.. Sun a t Can UNITED STATES--MacIntyre and Simpson, 75 E W acker Dr.. Chicago, HI.; 56 West 45th S t, New York, N.Y. 1 v , v. ,;- > ada Bldg., Cockspur S t. London, S.W. 1, Eng. E. J . Dodd, Director, Cable Atabek, Lesquare London, England. ' ; ' : SUBSCRIPTION RATE: Canada, United States and Possessions, Great Britain and British Posses sions, and Mexico, $1.25 per year. Other countries $2.25 per year. Single copies. 15c. Advertising , . y. rates on request j ji\- - , ' ~ THE MACLEAN PUBLISHING COMPANY, / - ,, ' 481 University Ave., Toronto 2, Ont. JOHN BAYNE MACLEAN, Chairm an o t the Board ''/ H. T. HUNTER, President y ' f . H. V. TYRRELL, Vice-President and General Manager LIMITED l ,y -PUBLISHERS OFModern Power A Engineering, Canadian Machinery, Canadian Printer and Pnhlieher, Canadian Advertising, The Financial Past, Maelean's Magasine, Canadian Homes and Gardens, Canadian Trade Abroad, The General Merchant of Canada, Hardware and Metal, Canadian Paint A' Varnish Magasine, Sanitary Engineer, Bookaeller A Stationer, Canadian Hatel Review and Restaurant, Canadian Automotive Trade, Bus and Truck Transport in Canada, Mcn'e Wear Merchandising. Dry Goods and Stylewear Review, Canadian Grocer, Drag Merchandising, Mayfair, Chatelaine. M odern Pow er a n d Eng in eer in g SEPTEMBER, 1935 Less Than the Dust SMALL though the particles of dust which float in the atmosphere may be, a large number are, nevertheless, visible in a ray of light. These visible particles, however, do'not constitute all of the dust in the atmos phere, there being infinitely more of a much smaller size. In addition, microscopic microbes are an ever-present enemy in polluting the atmosphere. Even those particles of dust which can be seen can sometimes have a very deleterious effect on human beings^ when" drawn into JJie lungs. - So serious is the dust menace that a com paratively new interpretation of the Ontario Workmen's Compensation Act has been given which has the effect of making eligible for compensation any employee who has con tracted the disease silicosis, no matter in what kind of employment. This has brought about a good deal of general discussion on the problem as a whole, and certain sugges tions have been advanced in a tentative way to some of the foundries, on the understand ing that a serious study of the problem be put into effect. - --- i --- This very subject of dust control received a considerable amount of attention at the annual convention of the American Foundry- men's Association which was held in Toronto this summer. One .speaker pointed out that, "due to the need of preventing health hazards in foundries, and to the increasing inclusion of references to dust elimination in labor and occupational diseases, greater attention must be paid to dust collection in foundries." H ENRY FORD, always in the forefront of ' any engineering developments, has also realized the importance of dust control in the foundries, and in the recent modernization of his blast furnaces at the River Rouge plant included the installation of air conditioning facilities in both the machine shop and foundry. The importance of dust control in this particular foundry may be realized from the fact that the air washing apparatus which had previously been used to supply outside of dirt a week. This falls through the water screen into large metal pans, of which there are 14. Each of these pans fills to a depth of 5 or 6 in. in a week. This is but one phase of the subject of air conditioning, the controlling of the tempera ture and humidity being also of great importance^ and where the amount of dust is not so great, may be of even greater import ance. In the Ford plant it was found necessary "to install air conditioning equipment in the cylinder lapping room because there was a variation in the size of the cylinder block on very hot days compared with cooler days. Because of the very dose and accurate pitch of pistons in the cylinders of the Ford V-8, this variation was apt to cause an engineering problem which has now been eliminated. I N THIS case temperature control of the atmosphere was an absolute essential for the satisfactory production of a motor car engine. The human body can be considered as a far more intricate piece of "mechanism" and should, therefore, receive more attention. This fact is being gradually realized, and air conditioning is now coming to the fore. In addition to those industries or processes which require air conditioning in order to obtain a satisfactory product, air conditioning can be used to advantage for human comfort in addition to eliminating injurious dust and ,,microbes which are ever prevalent in the atmosphere. Not only are the theatres provid ing a comfortable atmosphere for their pat rons, but by means of their air conditioning installations are rendering a service to the community by the killing of disease-carrying germs. Industry"-, could well follow the example set by theatres, restaurants, etc., by the installation of air conditioning units for the greater comfort and security of health of their employees. \