solve both of the questions in the picture Steam is supplied to a two-stage turbine at 40 bar and 500°C. In the first stage thesteam expands isentropically to 3.0 bar at which pressure 2500 kg/h of steam is extractedfor process work. The remainder is reheated to 500°C and then expanded isentropicallyto 0.06 bar. The by-product power from the plant is required to be 6000 kW. Calculatethe amount of steam required from the boiler, and the heat supplied. Neglectfeed-pump terms, and assume that the process condensate returns at the saturationtemperature to mix adiabatically with the condensate from the condenser.8.7(14950 kg/h; 15880 kW)For the piant of Problem 8.7 it is required to improve the efficiency by employingregenerative feed heating by taking off the necessary bleed steam at the same point asthe process steam. The process steam is not returned to the boiler, but make-up waterat 15°C is supplied. The bleed steam is mixed with the condensate and make-up waterat 3:0 bar such that the resultant water is at the saturation temperature correspondingto 3.0 bar. Calculate:(i) the steam supply necessary to meet the same power and process requirements;(ii) the amount of bleed steam;(iii) the heat supplied in kW.Neglect feed-pump terms.8.8(16480 kg/h; 2660 kg/h; 15460 kW)

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Steam is supplied to a two-stage turbine at 40 bar and 500°C. In the first stage the steam expands isentropically to 3.0 bar at which pressure 2500 kg/h of steam is extracted for process work. The remainder is reheated to 500 °C and then expanded isentropically to 0.06 bar. The by-product power from the plant is required to be 6000 kW. Calculate the amount of steam required from the boiler, and the heat supplied. Neglect feed-pump terms, and assume that the process condensate returns at the saturation temperature to mix adiabatically with the condensate from the condenser.

Steam is supplied to a two-stage turbine at 40 bar and 500°C. In the first stage the steam expands isentropically to 3.0 bar at which pressure 2500 kg/h of steam is extracted for process work. The remainder is reheated to 500 °C and then expanded isentropically to 0.06 bar. The by-product power from the plant is required to be 6000 kW. Calculate the amount of steam required from the boiler, and the heat supplied. Neglect feed-pump terms, and assume that the process condensate returns at the saturation temperature to mix adiabatically with the condensate from the condenser.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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