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Cedar Rapids Gazette (Newspaper) - January 1, 1974, Cedar Rapids, Iowa The Cedar Rapids Gaiette: Tuea.. Jan. 1. 1974 Power Plant: Fire, Steam, Heat U. OF I. POWER PLANT manager Marsh-si! Stewart (right) questions Richard Hormel on how long it will take tha heaters to thaw coal in a railroad car so that unloading can begin. 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 idad June 24 and end Aug. 2. On Aug. 7 the group will visit Jartagena until their departure for Miami on Aug. 10. CEDAR FALLS The Uni- versity of Northern Iowa will be offering students the opportuni- ty to earn eight credits in ad- vanced Spanish courses at, its sister school, the Universidad Pedagogica National in Bogota Colombia, next summer. The program will last eight and one- half weeks, from June 12 through Aug. 10. On June 12, students will trav- el from Miami to Medellin, Co- lombia. Medellin is Colombia's second largest city and the center of orchid cultivation. A trip from Medellin to Cali, Co- lombia's third largest city and the home of novelist Jorge Isaacs, will be made June 15. June 19 the group will depart Cali for Bogota. Students will live with families there during their seven-week stay. Classes begin at the univers- 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- gerald and Soviet Deputy Min- ister for Foreign Trade A. N. Mananula signed the agree- ment. Tile ceremony, climaxed near- ly three years of preliminary negotiations between the two governments. It followed an agreement to exchange diplo- matic missions. The trade agreement will re- main in force initially until De- Job Centers Suburbs have nearly overta- ken the cities as job centers, in the nation's 15 largest metropol- itan areas, about ten million people work in the suburbs, compared with 11 million in the cities a 14 percent gain for the suburbs in ten years and a seven percent loss for the cities. Want nds offer the greatest selection of home offerings! IOWA CITY Amid the swirl of controversy and con- servation generated by the en- ergy crisis, men continue to make electricity in a job that requires hard work and tech- nical know-how. Exposed to heat, dirt and deafening sound, they work with fire, steam and electrici- ty forces which allow little room for error. Some electricity men harness the power of rivers, tides or atoms. But 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 prob- lems of electrical generation. Marshall Stewart, U. of I. power plant manager, is the calm type of person who re- flects the confident expertise that comes wiih 27 years of experience. He sees the daily work of his men as the main- tenance of equipment which runs only as well as it is cared for. Begins with Water Power plant work begins with water. Extensive filtra- tion and chemical treatment is carried out to remove im- purities, especially minerals. This critical processing is checked every several hours to insure high quality. People who have 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 we had anything but pure water going through our steam system it would break down in thirly 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 pollu- tion emissions and are easier to bandle. With such fuels now in short supply, coal is fast re- turning 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 type of spontaneous combus- tion. During winter the coal ex- presses 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 Stewart said. Degrees All the various fuels are au- tomatically fed into the boil- ers. Several stories high, the furnaces reach temperatures in excess of degrees. Such heat is reflected in the boiler room where working conditions are tropical all year around. Water is turned into steam as it circulates through coiled lubes inside the furnace. Steam boilers combine fire Special Group MEN'S WQMENS Discontinued Styles Broken Sizes SHOES WOERDERHOFF'S 219 Third AvonuoSE KENNETH Pruess, at left, adjusts controls on one of the steam-driven generators at' the U. of I. power plant. 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 475 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 a din not easily for- gotten. Another rare but real crisis occurs when a steam pipe or valve ruptures. The result is a combination of Turkish bath and tropical storm atmo- sphere. Intense heat and swirling steam make the area near the break unapproacha- ble while the escaping steam circulates throughout t h e building. As the sleam cools, a kind of indoor rain begins to fall through (lie 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 Stewart said. 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 liigh speed in a magnetic field and electricity flows. After going through the gen- erator system, the low pres- sure steam is reconstituted to INSIDE a coal-fired boiler, temperatur3s over degrees change pass- ing through coiled tubes into steam. water for return back to the boiler. This cooling is ac- complished 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 re- move ice as it forms around tie water intake. This is an- other rough winter assign- ment at a power plant. There are many more jobs at a power plant that require skilled personnel. Devising better and safer work meth- ods 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." 30 YEARS AGO More than tons of high explosives and incendiary bombs were dropped on the razed city of Berlin, which was expected to be fin- ished as the working capital of j Germany. Dual Headlights Impact Resistant Front Best Bumper System Power Front Disc Biaktu Padded Sun Vlsois Flow-TtiruVenlitallon Full Instrumentation' Back-up Lights Sleel Belled Radial Ply Looped Pile Carpeting 4-Svced Manual Fully Floor Wounfsrf Fronl R near Stabilizer Dais Styled Wiieels Rnck Pln'on Slowing! Steering Column lock With everybody talking about (and working lor) gas economy, along comes Capri, the sexy European. It not only has European styling to brag about, but European ideas on gns economy are built right into it. Still, theso aren't the only msons why Capri sold more cars in its tirst three years in America than any other import in history. Shown above arc 16 other groat reasons tor making your next car Lincoln-Mercury's Capri. Everything you soo is standard on tho LINCOLN-MERCURY'S 1974 THE SEXY EUROPEAN YOU CAN AFFORD! (SHIPMENTS ARRIVING DAILY) STEITZER LINCOLN-MERCURY Collins Rd. Council St. N.E. 393-6500 inocdomolor, (with trip BOUNDS lor liwl, angina lomponturo, oil protouro and channtnrj.
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