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Cedar Rapids Gazette: Tuesday, January 1, 1974 - Page 7

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   Cedar Rapids Gazette (Newspaper) - January 1, 1974, Cedar Rapids, Iowa                                 Th** Cedar Rapids Garotte: Tues.. Jan. I. 1974  Power Plant: Fire, Steam, Heat  **»  U. OF I. POWER PLANT manager Marshall Stewart (right) questions Richard Hormel on how long it will take tho heaters to thaw coal in a railroad car so that unloading can begin.  6 V^-    .    V  A LARGE coal - fired boiler looms behind Howard Berry as he takes readings from the boiler’s control panel.  UNI Plans Trip to Colombia — for Credit  CEDAR FALLS — The Uni-1idad June 24 and end Aug. 2. versify of Northern Iowa will be On Aug. 7 the group will visit offering students the opportune Cartagena until their departure ty to earn eight credits in ad- for Miami on Aug IO. vanced Spanish courses at its sister school, the liniversidad  IOWA CITY - Amid the swirl of controversy and conservation generated bv the energy crisis, men continue to make electricity in a job that requires hard work and technical know-how.  Exposed to heat, dirt and deafening sound, they work with fire, steam and electricity — forces which allow little room for error.  Some electricity men harness the power of rivers, tides or atoms. Rut most work in plants that consume fossil fuels such as coal, oil and gas. While such power plants can be found in a wide variety of shapes and sizes, most have an atmosphere not unlike that of the University of Iowa’s power plant. The fact that it uses coal, gas and oil means the plant is involved in many common practices and problems of electrical generation.  Marshall Stewart, U. of I. power plant manager, is the calm type of person who reflects the confident expertise that comes with 27 years of experience. He sees the daily work of his men as the maintenance of equipment which runs only as well as it is cared for.  Begins with Water  Tower plant work begins with water. Extensive filtration and chemical treatment is carried out to remove impurities, especially minerals. This critical processing is checked every several hours to insure high quality.  People who ha\e problems with mineral sediments in a home hot water heater can imagine what impure water would do with a system hundreds of times larger and hotter. As Stewart put it: “If  Pedagogica National in Bogota, Colombia, next summer. The program will last eight and one-half weeks, from June 12 through Aug IO.  On June 12, students will travel from Miami to Medellin, Colombia. Medellin is Colombia’s second largest city and the center of orchid cultivation. A trip from Medellin to Cali, Colombia’s third largest city and the home of novelist Jorge Isaacs, will be made June 15 June IO the group will depart Cali for Bogota Students will! live with families there during their seven-week stay.  Classes begin at the un:vers-1  KRAUS    WOERD  Irish, Russians Sign Agreement on Trade  DUBLIN (UPI) — The Irish' Republic Friday signed its first trade agreement with the Soviet Union  Foreign Minister Garret Fitz-j gerald and Soviet Deputy Minister for Foreign Trade A NT  Mal  mer  tula signed the agr*  iy  wiy climaxed near-rs of preliminary  MEN’S WOMEN’S SHOES  PRICE  negotiations between the two  It followed an exchange diplo-  'cmerit will re-  Job Centers  Si our ut have nearly overtaken the cities as job centers In the nation’s 15 largest metropol-itan area*, about ten million people work in the suburbs, compared with ll million in the cities — a 44 percent gain for the suburbs in ten years and a seven percent loss for the cities.  Want ads offer the greatest selection of home offerings!  Special Group MEN’S WOMENS  Discontinued St/les Broken Sizes  VALLS SHOES  WOE RO ER HOFF'S  I I V Third Avenue it  KENNETH Pruess, at left, adjusts controls on one of the steam-driven generators at the U. of I. power plant.  we hod anything but pure water going through our steam system it would break down in thirty minutes and stay Inoperative for days.”  After purification, water is pumped to the boiler room. Here the water circulates through furnaces larger than the average-sized house. Many plants like the one at the U. of I. recently switched to gas and oil boilers because these fuels have lower pollution emissions and are easier to bandle. With such fuels now in short supply, coal is fast returning to favor.  The inconvenience of coal begins with getting it into the power plant. In summer the problem is to keep the fire in the boilers since coal storage piles are heated by the sun and begin to smolder with a tvpe of spontaneous combustion.  During winter the coal expresses a reluctance to burn by remaining frozen in the railroad cars. Torches are used to heat the cars, and vibrators attempt to rattle the coal loose. “When all else fails it is human muscle power that keeps the coal moving,” Stew art said.  21,000 Degrees  All the various fuels are automatically fed into the boilers. Several stories high, the furnaces reach temperatures in excess of 21.000 degrees. Such heat is reflected in the boiler room where working conditions are tropical all  1  year around. Water is turned into steam as it circulates through coiled tubes inside the • furnace.  Steam boilers combine fire I  and pressure into a potential bomb. Stewart said that while older boilers have safety hatches that can blow off the top, some of the newer models ignore such needs and on rare occasions there are explo  sions.  Steam under 175 pounds of pressure leaves boilers through a series of pipes and valves. As the steam goes through the valves, it hisses and roars filling the boiler room wit*’i a din not easily forgotten.  Another rare but real crisis occurs when a steam pipe or valve ruptures. The result is a combination of Turkish bath and tropical storm atmosphere. Intense heat and swirling steam make the area near the break unapproachable while the escaping steam circulates throughout the building.  As the steam cools, a kind of indoor rain begins to fall through the steam fog. Amid all this the proper valves must be located and closed before there is any hope to begin repairs. “That is the time for heroes,” Stew art said.  INSIDE a coal - fired holer, temperatures over 21,00') degrees change valet pass-mg through Lie coiloH tubes into steam.  Drives Generators  In the normal course of events, steam goes from the boilers to drive the electrical generators. Here a coiled mass of wire rotates at high speed in a magnetic field and electricity flows.  After going through the generator system, the low pressure steam is reconstituted to  water for return back to the boiler. This cooling is accomplished by circulating cold water around the outside of the steam line. The cooling water is heated slightly and returned to its source.  During winter the flow of this cooling water can be hampered by ice formation at the water intake. To prevent this, men must work out of  doors around the clock to remove ice as it forms around Fie water intake. This is another rough winter assignment at a power plant.  There are many more jobs at a power plant that require .skilled personnel. Devising better and safer work methods with new and improved equipment is a spin-off of the U. of I. power plant. As  Stewart said: “Providing an uninterrupted flow of power is no simple matter and we are always looking for improved ways to do our job.”  .‘50 YEARS AGO — More than 2.240 tons of high explosives and incendiary bombs were dropped  on the razed city of Berlin, which was expected to be finished as the working capital of Germany.  There’s a lot more  to it than  gas economy.  Adjustable Front Rocket Seals ruth Hana Rests  Padded Sun Visora  Windshield Washers  F oe-Thru Ventilation  7000 cc OHO 4 cyl.  Dual Headlights  Impact Pas latent Front A fiear Bumper System  Power Front Disc Brakes  Full Instrumentation* Back-up Lights  S'eel Pelted "* Radial Ply Tires  Looped Pile Carpeting  4 Speed Manual Transmission —  Fult/ Synchronized, Floor Mounted  Front a Rear  Stabilizer Bars  Styled Steal Wheels  Rank A Pinion Sh Steering Colut  With everybody talking .about (and working for) gas economy, along cornea Capri, the son/ European. It not only has European styling to brag about, but European ideas on gas economy mo built right into it.  Still, theso aren't the only reasons why Capri sold more cars in its first three years in America than any other import in history. Shown above are 16 other groat reasons for making your next car Lincoln Mercury’s Capri. Everything you see is standard on tho Capri--everything.  LINCOLN-MERCURYS  1974  CAPRI  THE SEXY EUROPEAN YOU CAN AFFORD!  (SHIPMENTS ARRIVING DAILY)  STELZER    UNCO    LN-M  Collins Rd. & Council St. N.E.  393-6500  Hi csa Human  ll  'Techomoler, speedometer, (with trip odometer), geodes tor fuel, engine temperature, oil pressure end better)/ changing.  I  4   

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