Show CURTIS STEAM TURBINE TEST I 1 our readers and especially those using turbines cannot but be interested in a test that has recently been made in behalf of the general electric company of tady new york with the curtis steam turbine this test was made under the supervision of louis A ferguson of the commonwealth mon wealth electric company and frederick A sargent of sargent lundy engineers while a memorandum descriptive of the type of machine and conditions is furnished by W L R emmet chief engineer of the lighting depart ment of the general electric company description OF TEST chicago july 3 1905 E wrice W rice jr third vice president general electric company schenectady new york dear sir we beg to submit herewith the report of tests made on a two thousand K W curtis turbine made at schenectady under our supervision may 3 1905 as follows we sent our assistants dark clark and eastman to schenectady to prepare the apparatus for making these tests and they made several preliminary trials before our arrival and the results of each of the trials very closely approximated the results of the official tests herein mentioned we had all the instruments carefully tested and standardized during the orilas the electrical instruments st being tested by the new york testing laboratory in the presence of mr eastman the surface condenser showed practically no leakage we took every precaution cl to satisfy ourselves that the tests were reliable and accurate and we beg to certify that the results obtained were as f follows ol 01 FULL LOAD TEST duration of test hour steam pressure gauge 1663 pounds back pressure absolute in of mercury superheat degrees F load in kilo kilowatts watts steam consumption per K W hour 1502 pounds HALF LOAD TEST duration of test hour steam pressure gauge 1702 pounds back pressure absolute in of mercury superheat degrees degreeff degree sF F load in kilowatts kilo I ilo watts steam consumption per K W hour 1631 pounds QUARTER LOAD TEST duration of test 1 hour steam pressure gauge 1555 pounds back pressure absolute in of mercury superheat degrees F load in kilowatts kilo kno watts steam consumption per ac K W hour is 1809 09 ZERO LOAD duration of test hour steam pressure gauge 1545 pounds back pressure absolute in of mercury superheat degrees F steam consumption per hour pounds respectfully submitted LOUIS A FERGUSON vice president commonwealth electric co F SARGENT sargent lundy TYPE AND conditions july 8 1905 mr J R lovejoy manager lighting department part ment general electric company dear sir the accompanying report gives results of test recently made by mr frederick sargent and mr louis A ferguson of 2000 K W steam turbine generating unit of the curtis type the turbine is a f four our stage machine designed in 1903 and recently changed in a few particulars as a result of experiments conducted during the past year the machine as tested conforms ds as nearly as possible to the standard four stage machine now being produced but is less efficient since the changes made have been confined to the buckets while several other important changes which we know to be desirable could not be made in this case without entirely rebuilding the machine the machine tested is of 2000 K W capacity and operates at R P M the results here reported have been determined ter mined by the most accurate methods and have been verified by repeated tests in addition to those conducted by sargent and ferguson duly considering the steam pressure vacuum and superheat yours very truly signed W L R EMMET |