7. Describe how one would calculate the net heat input or equivalently the net work developed by the Rankine cycle.Please select all answers that apply:a) Cycle work is calculated as W cycle= Q in-Q outb) In the calculation, W oycle = Q in- Q out, Qin is heat out from the condenser; Qout is the heat output from the boiler.c) In the calculation, W.input from the turbine.= Q in-Q out, Weycle = W. - W, where W, is the work output from the pump and W, is the workсуclewwwwd) In the calculation, WQ in-Q out, Qin is heat out from the turbine; Qout is the heat output from the condenser.сyclee) In the calculation, Wcycle = Q in-Q out, Qin is heat out from the condenser; Qout is the heat output from the turbine.

Answered: Image /qna-images/answer/495b92bd-f2c2-495d-a4b6-a3258ce7ab22.jpg

7. Describe how one would calculate the net heat input or equivalently the net work developed by the Rankine cycle. Please select all answers that apply: a) Cycle work is calculated as W cycle = Q in-Q out b) In the calculation, W. cyde = Q in - Q out, Qin is heat out from the condenser; Qout is the heat output from the boiler. c) In the calculation, W, cycle = Q in- Q out, Weycle = W. - W, where W, is the work output from the pump and W, is the work input from the turbine. d) In the calculation, W oydle = Q in-Q out, Qin is heat out from the turbine; Qout is the heat output from the condenser. e) In the calculation, W Q in -Q out, Qin is heat out from the condenser; Qout is the heat output from the turbine. сycle

7. Describe how one would calculate the net heat input or equivalently the net work developed by the Rankine cycle. Please select all answers that apply: a) Cycle work is calculated as W cycle = Q in-Q out b) In the calculation, W. cyde = Q in - Q out, Qin is heat out from the condenser; Qout is the heat output from the boiler. c) In the calculation, W, cycle = Q in- Q out, Weycle = W. - W, where W, is the work output from the pump and W, is the work input from the turbine. d) In the calculation, W oydle = Q in-Q out, Qin is heat out from the turbine; Qout is the heat output from the condenser. e) In the calculation, W Q in -Q out, Qin is heat out from the condenser; Qout is the heat output from the turbine. сycle

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

See similar textbooks

Similar questions

In the Ericsson cycle, the pressure of the air entering the compressor is 100 kPa, its temperature is 35°C and its flow rate is 2.5 kg/s. Since the pressure and temperature at the inlet of the turbine are 1.1 MPa and 1300 °C, respectively,a) Find the heat supplied to the cycle, the heat removed from the cycle and the net power produced.b) Find the thermal efficiency.c) Find the heat taken in or given off in the regeneration process.
11.) A heat engine with &=0.450 operates between two heat reservoirs at 300K and 700K. During each cycle of operation the engine takes in 200J of heat from the 700K reservoir. Th a) Find the magnitudes of the Wk, Qh, and Qc for one cycle of operation of the engine. b) Draw the energy flow diagram for one cycle of operation on a figure like the one shown to the right. Show an arrow and the value from part a) for: Wk, Qh, and Qc. c) Is this engine real, reversible, or impossible. Explain why. Engine Te
Problem 1) Rankine Cycle Analysis Consider a simple Rankine cycle, steam power plant. The state points are defined in the schematic and the operating conditions are given in the Table la. The steam flow rate is 137.4 lbm/s. You may use "EES," but supply your code. a) Provide a quantitative T-s diagram including all state points, lines of constant pressure, and the "dome." b) Determine all the energy quantities and complete Table 1b. Discuss the value of the quality at state 4. c) Determine all the exergy quantities and complete Table 1c. Assume the dead state temperature is 77°F and the dead state pressure is 14.7 psia. d) Discuss your results. What additional insights does the exergy analysis provide? 3 Quoiler 4 Fuel State 1 2 3 4 State 1 2 3 4 State br (Btu/lbm) 1 ? 2 ? Boiler ? ? Table 1a: State Points and Other Items T (°F) p (psia) Variable ? 0.71 XI ? 700 turbine 1057 700 pump ? 0.71 boiler T (°F) p (psia) ? 0.71 Turbine ? 1057 ? Condenser Table 1b: Energy Results 700 700 0.71 W…
QUESTION 1 Match the laws accordingly. | 1st law of thermodynamics A. No Heat Engine can be more efficient than a Reversible Heat Engine operating between the same temperature limits 2nd law of thermodynamics (foward engine) B. The internal energy of a perfect gas is a function of the absolute temperature only c. When a system undergoes a complete cycle, the net Heat supplied plus the net Work input is zero. Joules law 3rd law of thermodynamics 2nd law of thermodynamics (reverse engine) D. It is impossible to construct a device that operating in a cycle will produce no effect other than the transfer of heat from a cooler to a hotter body. E. A pure crystalline substance at absolute zero temperature is in perfect order, and its entropy is zero Second law of thermodynamics (Carnot) F. It is impossible for a heat engine to produce a net work output in a complete cycle if it exchanges heat only with a single energy reservoir.
7) Consider a cycle with n moles of diatomic gas illustrated in the PV diagram below. Assume the gas is ideal and that AB is an isotherm. a) Complete the chart below in terms of n, R, Temperature and Volume. b) Determine the efficiency. c) Find the Carnot efficiency for a cycle operating between these temperatures. P Isotherm B. C V V. AEint Qin WBy АВ BC СА cycle
a) A reversible heat pump absorbs heat at a temperature of 35.00oC and produces heat at 67.00oC, The work input rate is 101.00 kW, determine the heat output rate. the answer is 1073.13kW b) A reversible heat pump absorbs heat at a temperature of 25.00oC and produces heat at 61.00oC, The work input rate is 110.00 kW, determine the heat input rate. the answer is 2490.16kW
1. Using the Steam Tables, determine the heat absorbed by the boiler (KW) and Wsf when subcooled water at pressure = 5 Mpaa (subcooled by 64 deg C measured at the boiler inlet), is superheated to 100 degrees SH at the same pressure. Flow rate is at 10 cubic meters per minute. Ans.: a) Qa = b)Wsf= Hint: Use v at compressed water temp. at boiler inlet to convert to mass flow rate. Process is isobaric (Constant Pressure, where Q=m x AH).
Question 6 Compare the carbon emissions per MJ to heat household water using the following two energy systems: a) A 25% efficient coal-fired power plant delivering electricity to a 99% efficient electric water heater. Assume LHV carbon intensity of coal is 25.8 gC/MJ. b) A new 50% efficient natural gas-fired combined cycle power plant to a 99% efficient electric water heater. You must calculate the LHV carbon intensity of natural gas. Assume 100% methane and ideal conditions. Assume 5% losses in electrical transmission lines and 90 MJ of fuel input to each system.
7.) A Rankine cycle is used for a steam power plant. Liquid first enters the turbine at 2.25 MPa and 300C then exits at 0.025 MPa. The pump receives saturated liquid from the condenser before sending it to the boiler at the original pressure. a.) Draw the T-S diagram. b.) Find the dryness at turbine exit, c.) Wp, d.) Qa, e.) Qr, f.) Wt, g.) Wnet (kJ/kg), h.) Efficiency (%), and i.) Steam rate (kg/KVWH) 100%, 3.12 kJ/kg, 3016.3 kJ/kg, 2346.3 kJ/kg, 522.3 kJ/kg, 35.22%, 4.63 kg/kWh • 95.21%, 2.27 kJ/kg, 2809.6 kJ/kg, 1875.21 kJ/kg, 815.33 kJ/kg, 31.29%, 3.51 kg/kWh 83.73%, 2.27 kJ/kg, 2742.1 kJ/kg, 1964.48 kJ/kg, 779.89 kJ/kg, 28.36%, 4.63 kg/kWh 100%, 0 kJ/kg, 3016.3 kJ/kg, 271.93 kJ/kg, 2798 kJ/kg, 100%, 1 kg/kWh
A refrigeration systerm using refrigerant 11 is lo have a refrigerating capacity of 80 kW. The cycle is a standard vapor-compression cycle in which the evaporating temperature is -15°C and the condensing temperature 30°C. Determine the volume flow of refrigerant measured in liters per second at the inlet to the compressor. 213.02 B) 123.01 c) 62.61 314.84
34. Four designs for a steam power plant are shown in the figure. a) Find the heat supplied, the heat rejected, the net work, and the cycle thermodynamic efficiency for each design. b) Compare the results and comment on the advantage of each design. T 540 F 540 F 900 F b 540 F 540 F b. Cycle A Cycle i Cyclec Cycle D 90 F 90 F 90 F 90 F d d d
An ammonia simple saturation cycle operates at 35 psia suction pressure and 172 psia condenser pressure. For a load of 1600 Btu per minute, determine: a) The refrigerating effect b) The COP c) The gallons per minute ( GPM ) of cooling water in the condenser if water temperature is increased by 10 F.