All What is the final part of the flue gas way of boiler furnace found to raise the temperature of water? Explain this?. Also, demonstrate briefly the water movement in power plant? B// What are the types of feedwater heaters in power plant, compare them? Explain the methods of cooling by these heaters and the ways of feeding.

All What is the final part of the flue gas way of boiler furnace found to raise the temperature of water? Explain this?. Also, demonstrate briefly the water movement in power plant? B// What are the types of feedwater heaters in power plant, compare them? Explain the methods of cooling by these heaters and the ways of feeding.

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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Example 2 - Super-Reheat 3 TA high-P Low-P turbine turbine Rankine Cycle high-P 3 5 turbine 4 boiler] pump 6 condenser S We are going to add a low pressure turbine (5-6) to the system we just analyzed. Before going into the L-P turbine, the exit steam from the first turbine (3-4) is reheated in the boiler at a constant pressure. Assume both 4 & 6 are at 100% saturated vapor state and the vapor exiting from the H-P turbine (state 4) expands to a lower pressure of 2 MPa (P4-2 MPa) before it is being reheated at a constant pressure to the state 5. Recalculate (a) the thermal efficiency of the system. low-P turbine -
Question 3. The process diagram of a binary power plant with an ORC-process, utilizing geothermal energy, is presented in figure 1 below. Generator efficiency is 94%, generator output power is 180 kW and evaporator heat power is 2590 kW. Calculate the turbine output power. Round off your answer to one an integer. Heat into process Evaporator Turbine Feed pump Figure 1. Process diagram of the binary power plant. Generator Condenser I
The condensing pressure for a Rankine engine is 0.001325 MPavac. Calculate the following for steam flow rate = 16.3846 kg/sec of steam when the steam at the beginning of expansion is at 119.6 deg SH and 4.0 Mpaa. Draw the TS and equipment diagrams for the ideal and actual case and find for the following for the ideal case: Combined work (KW) . Ans.____________________________ Combined steam rate in kg/KW-hr. Ans.___________________________ Actual heat rate( KJ/KW-hr). Ans.____________________________
The condensing pressure for a Rankine engine is 0.001325 MPavac. Calculate the following for steam flow rate = 16.3846 kg/sec of steam when the steam at the beginning of expansion is at 119.6 deg SH and 4.0 Mpaa. Draw the TS and equipment diagrams for the ideal and actual case and find for the following for the ideal case: PV and TS diagrams of the cycle showing ideal and actual process lines Heat rejected at condenser (KJ/sec). Ans.____________________________ Mass of cooling water in kg/sec if cp H2O = 4.18 KJ/kg-K, and inlet temp of water to condenser = 20 deg C, outlet temp is 35 deg C. Ans.___________________________
B// What are the types of feed water heaters?, classify them according to their work nature and working fluid phase. Enhance your answer with drawings.
A steam turbine produces 2.5 MW of work. Steam enters the turbine at 4 MPa and 400oC. Steam out turbine at 1.4 MPa and 300 C.a. What type of turbine is this (back pressure, condensing,extraction)! Why?b. Determine the steam flow rate (kg/hour)! (51963)c. Determine TSR and ASR (units must be stated)! (13,13 and20.79 kg/kWh)d. Determine the efficiency of the steam turbine!
Design a Rankine water-steam power plant consisting of a maximum of 1 reheat cycle and 1 open feed water heater with the following limitations.The maximum pressure-temperature relationship for the boiler is illustrated in the graph below.P_Cond is limited to between 30 kPa and 1 standard atmosphere.What is the greatest efficiency ?Whats the schematic and T-s phase/state diagram?
Problem 3. A simplified Rankine cycle and some data are given in the figure below. a. Show the process in a TS diagram b. Calculate the rate of heat addition (QH) to the boiler. c. Calculate Wpump- d. Calculate |WNet|- e. Determine the thermal efficiency (n.)
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Question 2: (a) The pressure at which the steam should be reheated. (b) The thermal efficiency of the cycle. (c) Total heat input (Qin) (d) Total turbine work output (Wtur.out) (e) Draw the T-S diagram Notes: Assume the steam is reheated to the inlet temperature of the high-pressure turbine. • The moisture content of the steam at the exit of the low-pressure turbine is not to exceed 9.5% Boiler 650 C 17.5 MPa ww Reheater High-P turbine P₁ = Ps= Preheat Pump Low-P turbine Condenser e 15 KPa
The condensing pressure for a Rankine engine is 0.001325 MPavac. Calculate the following for steam flow rate = 1 + (200/13) kg/sec of steam when the steam at the beginning of expansion is at 119.6 deg SH and 4.0 Mpaa. Draw the TS and equipment diagrams for the ideal and actual case and find for the following for the ideal case: PV and TS diagrams of the cycle showing ideal and actual process lines Heat rejected at condenser (KJ/sec). Ans.____________________________ Mass of cooling water in kg/sec if cp H2O = 4.18 KJ/kg-K, and inlet temp of water to condenser = 20 deg C, outlet temp is 35 deg C. Ans.____________________________ Rankine engine efficiency (%). Ans.____________________________ Cycle thermal efficiency ( %). Ans.____________________________
Problem 2: Win High-pressure liquid water (Pump Boiler Condenser à out Low-pressure liquid water FIGURE 7-1 Example of a power cycle. High-pressure steam 3 Turbine Wout Low-pressure superheated vapor or high-quality two-phase mixture A simple steam power cycle consists of a boiler, turbine, condenser, and pump as shown in the sketch above. All the heat removal in the cycle is done by the condenser which transfers the heat to pipes carrying cooling water. The cooling water has a mass flow rate of 7 kg/sec, and a specific heat of 4,180 J/kg-°C. The cooling water is supplied at a temperature of 10 °C and exits at 20 °C. Heat is supplied to the cycle through a steam boiler at a rate, Ċin = 420 kW. Find the following: a. The rate at which heat is rejected from the cycle to the cooling water, Qout- b. The net power produced in kilowatts, Wnet- c. The cycle efficiency, cycle.