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An auxiliary turbine receives saturated steam at 300 psia with negligible kinetic energy at the rate of 3000 lb/hr. At exhaust the steam pressure is 1.5 psia, and the moisture content is 10 percent. The inside diameter of the exhaust trunk is 12 inches. Find what is asked. See the picture attache

An auxiliary turbine receives saturated steam at 300 psia with negligible kinetic energy at the rate of 3000 lb/hr. At exhaust the steam pressure is 1.5 psia, and the moisture content is 10 percent. The inside diameter of the exhaust trunk is 12 inches. Find what is asked. See the picture attache

Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
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An auxiliary turbine receives saturated steam at 300 psia with negligible kinetic energy at the rate of 3000 lb/hr. At exhaust the steam pressure is 1.5 psia, and the moisture content is 10 percent. The inside diameter of the exhaust trunk is 12 inches. Find what is asked. See the picture attached.
91. Steam enters the first stage nozzles of a large turbine with negligible velocity at a pressure of 540 psia and a temperature of 800°F. The pressure at the nozzle exit is 220 psia. If the process is isentropic, find A. the finai enthalpy, Btu/lb B. the kinetic energy at exit, Btu/lb C. the velocity at exit in ft/sec Ans. 1302.2 Btu/lb Ans. 108.1 Btu/lb Ans. 2327 ft/sec 92. An auxiliary turbine receives saturated steam at 300 psia with negligible kinetic energy at the rate of 3000 Ib/hr. At exhaust the steam pressure is 1.5 psia, and the moisture content is 10 percent. The inside diameter of the exhaust trunk is 12 inches. Find A. the velocity of the steam in the exhaust trunk B. the enthalpy of steam in the exhaust trunk C. the work done in Btu/lb D. the horsepower developed in the turbine Ans. 217.4 ft/sec Ans. 1008.9 Btu/lb Ans. 194.1 Btu/lb Ans. 229 hp 93. A boiler receives feed water at 1000 psia and 350°F and delivers superheated steam at 900 psia and 840°F. Neglect any kinetic energy changes and find the heat added, Btu/lb. Ans. 1093.S Btu/lb 94. Saturated steam is supplied to a fuel oil heater at 150 pısia and becomes saturated water at the same pressure. Find the heat transferred from the steam, Btu/lb.
Transcribed Image Text:91. Steam enters the first stage nozzles of a large turbine with negligible velocity at a pressure of 540 psia and a temperature of 800°F. The pressure at the nozzle exit is 220 psia. If the process is isentropic, find A. the finai enthalpy, Btu/lb B. the kinetic energy at exit, Btu/lb C. the velocity at exit in ft/sec Ans. 1302.2 Btu/lb Ans. 108.1 Btu/lb Ans. 2327 ft/sec 92. An auxiliary turbine receives saturated steam at 300 psia with negligible kinetic energy at the rate of 3000 Ib/hr. At exhaust the steam pressure is 1.5 psia, and the moisture content is 10 percent. The inside diameter of the exhaust trunk is 12 inches. Find A. the velocity of the steam in the exhaust trunk B. the enthalpy of steam in the exhaust trunk C. the work done in Btu/lb D. the horsepower developed in the turbine Ans. 217.4 ft/sec Ans. 1008.9 Btu/lb Ans. 194.1 Btu/lb Ans. 229 hp 93. A boiler receives feed water at 1000 psia and 350°F and delivers superheated steam at 900 psia and 840°F. Neglect any kinetic energy changes and find the heat added, Btu/lb. Ans. 1093.S Btu/lb 94. Saturated steam is supplied to a fuel oil heater at 150 pısia and becomes saturated water at the same pressure. Find the heat transferred from the steam, Btu/lb.
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