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About The Battalion. (College Station, Tex.) 1893-current | View Entire Issue (Nov. 5, 1930)
2 THE BATTALION HOT WATER HEATING SYSTEMS By F. E. Gieseke, College Architect The college has two central hot water heating systems. A smaller one, which serves the Library and the Aca demic Building, and a larger one, which serves Milner Hall, Legett Hall, Mitchell Hall, Electrical Engineering Building, Ross Hall, Y M C A Build ing, and Hart Hall. In both systems, the water is heat ed at the Power Plant and pumped from there to the several buildings where it flows through the radiators, giving up a portion of its heat to the building. The radiators in Hart Hall were designed so that they must contain water having an average temperature of 180 when the outdoor temperature is 25, if the temperature in the build ing is to be maintained at 70. When the outdoor temperature is higher than 25, the average water tempera ture in the radiator must be lower than 180, approximately, according to the following table: For outdoor tem perature of 35, 45, 55, and 65, respec tively, the average water temperature in the radiators should be 158, 136, 114, and 88. The heating system for Hart Hall was designed so that when the out door temperature is 25, the water must be cooled 20 degrees while flow ing through the radiators; i. e., the In every college town there is one outstanding water must enter the radiators at 190 and leave at 170. In that event, every pound of water flowing through the radiators will deliver 20 B. t. u. to the building. It is estimated that Hart Hall will need 1,200,000 B. t. u. per hour when the outdoor tempera ture is 25 and the indoor temperature is 70, consequently, during such a per iod a quantity of water which must be pumped from the Power Plant to Hart Hall and back is 60,000 pounds per hour, or 120 gallons per minute. The pipe system in Hart Hall was designed so that a pressure head of 3 feet of water will be required to force the calculated quantity of wa ter, 120 gallons per minute, through the Hart Hall heating system. Calculations similar to those de scribed above for Hart Hall were made for the other six buildings serv ed by the central heating system and it was found that the total quantity of water to be pumped through the larg er heating system is about 525 gal lons per minute. The pump which circulates the wa ter through the heating system oper ates at a practically uniform speed regardless of the temperature of the water. Consequently, when the out door temperature is 55 and the build ing needs 400,000 instead of 1,200,000 B. t. u. per hour, the water will be cooled 6 2/3 instead of 20 degrees, while flowing through the radiators. If, for that condition, the average temperature of the water in the radi ator is to be 114, the water should enter the radiator at about 117 and leave at about 110. In this manner the following table was prepared to guide the engineer in charge of the heating system in regulating the temperature of the wa ter according to the varying outdoor temperatures and according to the de sired indoor temperatures during the various portions of the 24-hour day. For Outdoor Water Entering Temperature Building 25° 35 45 55 65 190° 166 142 117 90 Water Leaving Average in Building 170° 150 130 110 86 Building 180“ 158 136 114 88 Fire Fighters Get First Call Of Year Led by their gallant chief, Captain Jack Baggett, B Battery took off last Sunday afternoon for the first fire of the season, a shower house in Hollywood. Owing to a general lack of knowledge as to the whereabouts of the fire, considerable delay was experienced in getting under way. But this was more than offset by the dogged determination of the crew to quench the flames as quickly as possible upon their arrival. Emerging from the station at a terrific rate of speed, the two trucks were neck-and-neck for the first block of the run, but the hose department, piloted by Baggett, soon forged into the lead. However, it was pressed closely by the heavier, more modern hook-and-ladder truck because of the skillful driving of assistant chief J. B. Clark. Breaths were held, eyes closed, and hearts stood still at the reckless abandon of the drivers in their unselfish efforts to save life and property. Various opinion have been advanced by onlookers as to the origin of the conflagration, but the official report states that “three boards of the show er house were scorched because of being overheated by a stovepipe.” Education, whether within or with out the home, must impart knowledge specifically useful to the individual according to his peculiar nature, if it is to accomplish results ethically valuable.—Howard Madison Parshley. Hart Hall will be located under the stair case of Ramp F. Thermometers have also been in stalled in Milner Hall, Legett Hall, and Mitchell Hall so that the temper atures of the water entering and leav ing those buldings can be easily as certained. Knowing the outdoor temperature and the water temperatures, and hav ing a report from the occupants of the halls regarding the character of the heating of the rooms, it will be possible to make such modifications of the table of prescribed tempera tures as may be necessary to secure satisfactory heating of the dormitor ies at all times. (To be Continued) ' DR. LAMAR JONES At Illinois it’s ^ ALONG Green Street, where •tx. campus leaders stroll ... in the great slate-roofed fraternity houses of Champaign . . . there is one pipe tobacco which always rolls up the biggest vote. At Illinois it’s Edgeworth, every time. A pipe—Edgeworth. That is the smoking combination which has won the college man. Harvard, Cornell, Michigan, Stanford, Dart mouth — all agree with Illinois. Natural merit has made Edgeworth the favorite tobacco in America’s leading colleges and universities. College men everywhere respond to the appeal of pipes—packed with cool, slow-burning Edgeworth. Be guided by their verdict: try Edge- worth yourself. Find it at your nearest tobacco shop—ISji the tin. Or, for generous free sample, ad dress: Larus & Bro. Co., 105 S. 22d St., Richmond, Va. EDGEWORTH SMOKING TOBACCO Edgeworth is a blend of fine old bur- leys, with its natu ral savor enhanced by Edgeworth’s dis tinctive ” eleventh process. ” Buy Edge- worth anywhere in two forms—"Ready- Rubbed” and" Plug Slice.”All sizes, 15fi pocket package to pound humidor tin. This table is based on calculations which may not be sufficiently accu rate. If the temperatures listed in the table are too high, the rooms will be too warm; if the temperatures are too low, the rooms will not be warm enough. In order to prepare a table which is sufficiently accurate, it is neces sary to have the co-operation of the students who should observe the tem peratures in their rooms carefully and report to W. H. Badgett the ex act times when their rooms were not propertly heated; this report should, if possible, include the temperature of the room. A portable recording thermometer will be available to study the changes in temperature within the buildings. Continuous records of the outdoor temperature and of the water tem peratures will be kept. The record ing thermometer for outdoor temper atures is located on the rear porch of Ross Hall. A recording thermome ter for the water temperatures in Dentist X-Ray Second Floor City National Bank Building Telephones: Office 698; Res. 464 BRYAN, TEXAS Serving A & M SHOE SHOP Since “91 CAMPUS RECORDS KODAKS JOE KAPLAN & CO, INC. WALL PAPER AND PAINTS VICTOR RADIOS AND VICTROLAS DIAMONDS WATCHES GIFTS The Campus Cleaners and Tailors HENRY LOCKE, Manager Alterations, Cleaning, Pressing and Repairs Hats Cleaned and Blocked Caps Cleaned. 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