Document r1GjexbZEG7zKvBdpJZY4210

There's no doubt.' OTRnHTBHnv S SAFETY-RELIEF VALVES ^ GIVE YOU FULL PROTECTION WT ` KOP OOP Ttis dependability of (he Lonergan Hm it pro*od an thousands of Installations. Mod*'* in design, ragged in eanslrec* tlen, these valves ore made lor moderate end high prestores end temperatures. Use them lor protecting boilers, com* pveisen, pumping systems ond a groat variety of process equipment. I> HOP , PRESSURE GAUGES meet the highest standards of accuracy Etaet fgl*ering. Uifi Se lls* and pructstun mnvtmaati a i inAm.f in *' it types end mors then tOa modsIs. tlivi trm 2 VS to II Uchst. nassm> 1. E. lonergan company (toco ond Second StrooH Pblladolphla 6. Fa. Ovor <0 room oiporionce. COMBUSTION AIR Continued /rent peg* MS cooling-medium temperature. Wider ap proach of afiercooter is a compromise dictated by space limitations. Typical 4-cycle engine with inlet air at 115-F d-b, 6S-F w-b at 3000 (t eleva tion, with a charging pressure of IS in. Hg, receives air at 225 F without con ditioning equipment. With conditioning, results are: Initial conditions .................. After evaporative cooler...... Alter turbocharger............... After aflercooiar: combustion ir supplied engine with 80-F water...................................... (115-F d-b ) 65-Fw-b j 72-F d-b / 70% rh (1B2-F d-b f 5% rh JI0S-F d-b | 37% rh Supercharged engine fitted with the more efficient combined aflercoolerevaporative cooler in Fig. 7 receives air as follows: Initial conditions ...... $ U5*F. d-b ...... J 65-Fw-b After turbocharger...... i 225-F d-b f 5% rh Air from aftercooler............... ] 105*F d-b 1 6% rh Air from evaporative cooler to engine......................... 1 71-F d-b ] 66% rh Space limitations govern the aite of equipment usable on engines of this type. Improved cooler, designs permit conditioning of combustion air to values indicated above. Cooling of combustion air Is one step but true conditioning of combustion eir offers more advantages in providing higher efficiency, more re liable prime movers. WITH OUR READERS from poyv J parts of a complei, monolithic, rigid frame, with Infinite degrees of freedom, of such sites that their weight cannot be neglected and the loading to usually.partially uniform. Consequently, computations based on sin gle degree of (reedom may not be adequate. Structure] engineers, as a rule, seldom are well versed in the theories of vlbrotion. However, the following suggestions may be applied without higher mathematics*. 1. Turbine foundation should be thor oughly analysed as a rigid frame for oil possible vertical ond horltontil loadings. 2. From the moment analysis, an en velope of the moiimum and minimum mo menta should be plotted. From this, an approximate degree of fiiity for the girders can be established. 3. Using the formula r -i- /,--? 1 * J\ u, 1- establish the first (aw modes of natural frequencies of vibration. The coefficients a. should be Interpolated in the ratio of fixity Dependabi f|TE RIVER STATION ADDING SIX MORE ~POWER--HE* Ticother STEAM GENERATO! This battery of four TlcoL... Stoam Generators depends^ and economically servesUa-- power and heat requirement of the 2000-paliont .Franldj Delano Roosevelt VeleiaonM J^Sjx-9-Stage CHTA high pressure Administration HospitaugP Pookskill, New York. Ticoltenjj J&p'umpj will serve two new . Steam Generators ero your sound choice for oa|] 3,000 kw units at this mum steam output at fy^lpsl'grmtiing station of operating cost. Write. details! .til ijPfcdianapolis Power & Light Company feii. iT.^rasoix-RANo is proud to hove been associated in JL**ery phase of the development of the new White tetion. Ai this modern plant, the three45,000kw IgHjH1* already in operation are served by nine 1-K Class boiler feed pumps. To keep plant capability abreast of Increasing load demands, two new 68.000 kw units ore now being added. Unit No. 4 is to be put into service in December 1952 snd No. 5 o year Inter. Six 9-stage, 4-inch Class CHTA "double esse" pumps will serve these units -- driven by 900 hp motors .and delivering 708 gpm of 303* feed voter at 1565 psi. Other I-R pumps at White (liver include vertical circulating- and condensate pumps for the five I-R rectangular condensers, evaporator and chlorinotnr feed pumps and a host of general service units. This installation it another example of the wide variety of pumps offered to the power generating industry by Ingersoll-Rand. Your nearest 1-H branch office will be glad to consult with you on your pumping problems. ____ Yll?`MNk?vlVAHiA' Jpy tth*. POWER ,UA")r 1953 IngensoU'Rand CAMHON TUMP DIVISION 11 Broodway, New York 4, N.Y am i utcTRie tools rock onus 0AI 4 OIWU CKCINII aej.to TUIOP-SlOWftS 209