Trine University - Modulus Yearbook (Angola, IN)

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THE INTEGRAI iiullllni .wh iiI1IllliwiX iY, hut always siiuw-xwlly' iJIXYj'l'l' 1'-Ai11:ni'lu-ml 1-ww-lilly that hw was hy fail h it ll if hxuwl Iwi' in uhh gm- QU hmni' 111 zip- :hw 1:11-:lIr'Sl mann uhm haul 1-vvi' Ulbllll' to thix Iilwlil hix li'11f-:iw-11111.-ss, vivlllllllillily, :uni haul mlmw it umrv lasting gmail X I11-1111 who hh--xx him :ls an Ili'4'Ill'ill'I'. xiii-1 Iil1bIl1lIlXUlil1'l'. uhh lx Iully izlpgahhfiw1 11lii:ih:, mifl if hv hm! lI-- illli :ll lvnwl hililt up fm' hilllss-lt' gin 4111 lx. In hh uhh hw lm-an-11111: :ir hi- hzul wviiiiiii-'xv xinhl-' 1'ww1'il, :null is illll1UI'l'li und Iwliwflil hx huh! hnw hhhlw Xu-h :i Illillll' thi' hxml iIllli1iI '4iS ui' slll1il'lllS :uid uiwuiliule-S thi- whuif h I ilh! Ili-nm Xilmi iiI'I'1ilf'I' .X IPI'4IlIli1l4HI xxurhi mm' Mary H VUUHS' ,l.... ,.,..,,..L. 1. .-..,-.N-..,1.,.,1., .-.W-,U-,,,i-i..,.......,T...-....- ..i, -...ii...-uivluuz-I-.nv ,? ! i I : W i ! i ! i i l l . 1 l + -.. ....... . .... ,. -i.-..-,,n-., -.,n-i,.-.,..-..n.. - - -.-,.,

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THE INTEGRAL had passed. So he resigned, severed all con- nection with the college, and went to California. However, before the year was up, the school had run so far behind in its expenses, and things were goin: so badly, that all his partners were writing him, requesting that he return, which he did. This means thirty-seven years of continuous service as President of Tri-State College, barring this one year. President Sniff is, and has been, an idealist. In coming here he had a vision of the school that was to be, and the service he could render. Whatever Tri-State is, and is not, is due to his great faith, coupled with hard and unremittin: work. With all due credit to his associates. for without their loyal support he could not have carried on this work, still his has been PAGE 7 the dominating influence that has piloted Tri- State safely thru many struggles. lt has been no easy task to build and maintain an indepen- dent school ot' this type, with no endowment. and not a rent of help from church or state. Tliirty-tive schools of about this same cliaracter were founded ne-ar the time Tri-State was found- ed. in tlhio, and indiana, and today Tri-Stati is the only one that remains. All the other- have gone to endowment or have perished, and many ol' them are now forgotten. President Sniti' is a lover of nature, a are-at botanist. Without doubt he is more familiar with the flowers of Steuben county and their habitait, than any one else. He can identify: the mushrooms that grow in this section, and he knows the birds and their habits, but is not as much of an authority on this latter subject as is Airs Sniff. His hobby is gardening, and he makes it a profitable one. He has been a great hunter, and is unrivalled in this county in his reputation as a fisherman. Folks say il' Professor isn't catching fish, none are being caught. He has the true sportsman spirit, and takes great pride in his fine shotgun, reels, rods and fishing tackle. Ht- is a profound, philosophical thinker, and a great reader. keeping well informed upon -ill the topics of the times. Up until the last few years he spent some time each year lecturing at teachers' institutes. conventions, commence- ments, dedications etc. Some of his speeches written twenty years ago seem almost prophetic when read today. He thinks by leaps and 7

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THE INTEGRAL PAGE 9 STEAM BOILERS By M. Browerman, Nl. E. '22 A steam boiler, although sometimes called the heart of the plant, is really a dull machine to the average man. If one were to visit a large power plant, he would probably be first shown the Corliss engine with its trim lines or the turbine of seemingly simpler construction. Alt first thought the uninitiated layman might think that he had seen the best part of the plant. The wise man, however, would know that there was another power behind this great machine and he would ask to be shown into the boiler room. Here he would find a long line of boilers quivering with the energy con- fined within them and great fires roaring un- derneath. In days when steam pressure did not exceed a few pounds per square inch. certain methods of construction we1'e allowable, but at the present time when steam pressures are often carried as high as from 100 to 250 pounds per square inch, the strictest attention must be paid to every detail of design and construction. Safety is the most important requirement of a steam boiler, in so far as danger from ex- plosion is concerned. If the energy of a large shell boiler under pressure is considered, the thought of the destruction possible in the r lst- of an explosion would impress one with fear. The late Dr. Robert H. Thurston, Dean ot' Sibley College. Cornell University, and past president of the American Society of Mechanical En- gineers. estimated that there is sufficient energy Sl0I'0d in a plain cylinder boiler under 100 pounds steam pressure to project it to a height of over 2212 miles. Boiler Horsepower The term boiler horsepower is l'lliSi9Htlilt'1, in that a boiler does not develop power but simply acts as a means for absorbing li-at energy in one place and transferring it to tht engine or turbine, depending upon what hind of a prime mover the plant possessed. When the original boiler horsepower unit was selen t- ed a one horsepower boiler would supply a one horsepower engine. The increase in tht economy of the engine, has changed the ratio until now a 100 horsepower boiler will supply an engine of T5 to 300 engine horsepower. Any modern boiler will run continuously at from 150 to 200 per cent. over its rating and for short periods 400 and even 500 per cent. having been reached. Thus the term has loft much of its significance. Boiler l:l'llllil'l'llll'IltS In designing a steam boiler there are many considerations that must be kept in mind. Among the most important are strength, dur- ability, capacity to furnish the required amount of steam. convenience for cleaning, repairing and inspection. simplicity in detail, and economy both in running and first cost. General Requirements I. Workmanship. Boilers should be built by expert workmen. The material and con- struction of every boiler should conform with the rules and regulations issued by the highest authorities. Il. Sufficient area of grate to burn the re- quired amount of fuel. This item is import- ant in determining the capacity of a boiler, al- though related indirectly to its efficiency. III. Combustion chamber and flue area large enough to completely burn and carry off the products of combustion. Formerly certain proportions of the grate surface were allowed for the cross-sectional area through or around tubes. but the results were only accidentally correct. XVith proper ope1'ation, the kind and weight of coal to be burned per hour deter- mines within reasonable limits the weight of gas produced per hour. The volume of gas de- pends upon its temperature. and the rate of decrease of temperature from furnace to stack has been determined by experiment for cer- tain boilers. The velocity of this gas depends upon the draft and upon frictional resistance. all of which can be valuated with fair accuracy. The volume and velocity being known, the cross-sectional arfa necessary for gas passage can be calculated. IV. Steadiness of XVater Level and Circula- tion. XVater will be carried off with the steam from inadequate liverating surface and occurs. consequently. in many vertical boilers having the water level below ithe tops of the tubes. Drums should not be too small or else slight var- iations ot' water level may carry it rapidly below the danger line. Good circulation is ima portant. It reduces stresses arising from dif- ferences in temperature, discourages the ac-A Continued on page 50