Document ga8jyvQqqXMxNrDrkOJG0GjVQ

NOW REMOVE SCALE, RUST By Chemical Circulation Method It's safer, faster, easier Deo't rod out lime ecole from equipment--dmoWe it with Otklt Compound No. 32. Oekite Compound No. 32 it a liquid acidic material to which you add water. It diiaolvca lime calo and ruet when circulated through equipment. Inmoateatea , diamabiiing of equipment ta un> neccaiary. Oakite Compound No. 32 doei a more efficient job than mechaolcat methodi because, ii Row* Into areai inaccetaible to rod and drill. Uea Oakite Com. pound No. 32 for descaling: Dleial laglnae Condensers Heel Kaehonpera Tnsitsmsn Fill BOOKLIT contain* complete details. Send for your copy today. No obligation. ........OAKI1I PRODUCTS, INC. 11 Imm bra* Nrw Ywt, N. Y. OAKITE * ausost*' nkl ItpinMIillet U IU* f U. 1. * CnxaOa .I 1I | More TECHNICAL BRIEFS on pop# MR known ai well as ila temperature and pressure. The temperature is obtoined by a combination pilot lubo-ihermo* couple. Stack pressure can be obtained with a simple U-tubo manometer or an inclined draft gage with a range of 0.0 to 1.5 Inches of water. The gas analysis for CO, CO* and 0), can be obtained with sufficient accuracy by the Orsat method. A more complete and accurate gss analysis is considered spurious be. cause of the small difference that would he effected in the calculated density. The wet-dry bulb method proved quite satisfactory to determine the percent of water in the alack gas. The assumption was made that the ptychromelrle charts hr air and water applied to stack gases. This assumption held true within the required aceuraey for further calcula tions. It is interesting to note that the stack gas density is practically identical with eir. APCA Paper, no number. OfrectlMi to wrfwJag papers p 1ST Mixing and Equilibrium In Pips Plow, fly W H Carrier and DP S Muener, Car rier Carp. A eemi-classical approach to the prob lem of mixing or redistribution In pipe flow is developed and checked against a series of tests when a jet discharges into the open end of a pipe. The theory presented successfully describes the changes in velocity distribution as a jet like peaked flow that decays and, under proper conditions, ofTcrs a moderately good prediction of the ehange in total pressure. There is some indication that the theory can be extended to cover nor mal pips flows. The test data are of considerable in dependent value end tabulated in detail with typical eases plotted to illustrate the various phenomena measured. The momentum loss area of two typical eases is plotted vs. L/D, illustrating the way momentum loss reduces exponentially, over-shoots its final value somewhat, then rises to assume the value corre sponding to the Reynold number. Perhaps the most Important single item arising from the present theory and rests is the concept of (he decay coef ficient and the fact that it is almost independent of Reynold* number. This would seem to indicate that the turbulent mechanism itself Is not greatly affected hy Reynolds number. It is hoped that the success of the simple semi-classical approach used here in predicting the performance of a symmetrical mixing flow in a pipe'will provoke some productive thought and eventually will result in some gains in BELMONf SHEET PACKINGS jher Example of the ASK YOUR DISTRIBUTOR You know the high cost of packing 1 failure . , . but do you know the i easiest, simplest and most economteal way to prevent failures? The 1 answer is to put your problem squarely in the hands of an expert . . . your BELMONT distributor. Working in close cooperation with Belmont's service engineers end 'technicians he is in an ideal position to help you select and apply the proper sheet packings for your . services . . . speedily, economically and all from a single reliable source. Belmont sheet packings and gasket cutters are sold nationally through this experienced distributor organ ization. Use them and enjoy a new freedom from packing worry. Write on your company letterhead for catalog. lor Steam Water Oil 6a AiUi MkolUs Ammento . BELMONT PACKING AND RUBBER (0. Butler and Sopvivo Street* Philadelphia 37, Pennsylvania T-400 Rum* Thermaltot This modern office building, which houses the Springfield Firo and Marine Insurance Co. in ..Springfield, Mess., is another example of the . adaptability of Johnson Automatic Temperature Control. There are 202 Johnson T-271 HeatingCooling Thermostats operating Johnson V-152 Valves which regulate the hot and cold water that iB supplied to the modern Carrier "Wcaihermasier" room air conditioning units in spaces on the periphery of the building. Over one hundred Johnson Individual Room Thermo stats operate Johnson Volume Dampers to in sure year-around comfort in (he interior zones. , In other areas of the building, Johnson instru ments control unit heaters and exhaust fans. Yesl Here, indeed, is an outstanding example of the adaptability of Johnson Control and a convincing demonstration that anycontrol problem is best solved by Johnson .. . the only nationwide organization devoted exclusively to manufacturing, planning and installing auto matic temperature and air conditioning control systems. Why not let a Johnson engineer solve your control problems, large or small, simple or complex? There is no obligation, of course. JOHNSON SERVICE COMPANY, Milwaukee 2, Wis. Direct Branch Offices in Principal Cities. Rings Spirals (oils Reelr {pools Sheets Casket' Therc't o Belmont PotMng tov every sex vise JOHNSON eJ&tfottux/ec 3etnfiQ\aJu\Qmu h "'"VTACTUM APPLICATION INSTALLATION * SIMM 1*89 CONTROL POWER NOVEMBER NOVEMBER 1933