Consider a 600-MW regenerative-Rankine-cycle steam power plant with an open feedwater heater, as shown in Fig. 9.17. The boiler pressure is l1000 psia, the extraction pressure is 200 psia, and the condenser pressure is 1 psia. The high-pressure turbine inlet temperature is 1000 F. The water leaving the con- denser is saturated liquid. The exit state of the feedwater heater is also saturated liquid. Determine the thermal efficiency of the power plant and the boiler mass flow rate (lbm/hr).

Q: Determine the thermal conductivity.

A: M1 => K = 15Q42.3-32.8=15Q9.5 M2 => K = 25Q41.9-32.7=25Q9.2 M3 => K = 35Q39-32.7=35Q6.3 M4…

Q: Determine the magnitude (N) of the horizontal component of the reaction at point A if, F=230N,…

A:

Q: State the first law of thermodynamics briefly

A:

Q: Show the COMPLETE SOLUTIONS and DIAGRAM (T-s) (Cycle) including the switching of table and…

A: Given data: The mass flow rate is m˙=25 kg/s The temperature at point 1 is T1=45°C The temperature…

Q: Explain the temperature Changes: Heat Capacity ?

A: Temperature change- process where the temperature of body changes or hotness of body changes  i.e in…

Q: 5. In an ideal Rankine cycle, steam is generated at 4.1 MPa and 480 °C. The condenser is at 32 °C.…

A:

Q: PROBLEM 3 for the mechanism, shown on the figure, v₁=2 m/s, a₁ =7 m/s², B=0,4 m. Determine: linear…

A: Given Velocity, v = 2 m/s   Acceleration, a1 = 7 m/s2 Find   Linear velocity and acceleration of the…

Q: An insulated, rigid tank whose volume is 0.5 m³ is connected by a valve to a large vessel holding…

A:

Q: Q4- Water in piston cylinder system at (T1 and X1). The water is heated isothermally until the…

A: Let initial,intermediate and final stages be denoted as 1,2&3. Given:- Initial conditions of…

Q: Explanation need. Fast

A: 1. Iso-thermal - Expansion. A thermodynamic process known as an isothermal process occurs when the…

Q: A car is travelling along a straight horizontal road with a constant acceleration of 0.75 m/s. The…

A:

Q: The stored energy of a fluid in a closed system changes from 500 to 440 Btu/lbm while the fluid…

A:

Q: prototype designs will be more efficient? cooled piston model both having the same diameter of five…

A: Considering air cooled modelInitial pressure at starting of compression (P1)=14.70 psiInitial volume…

Q: standard deviation of the resulting linear

A: Given data, Linear dimesnions,S and T are,  σs=7 μm  σT=12 μmCalculate the standard deviation of the…

Q: 2. Specific heat of COz (Epolcos) is (in KJ/kg K), at 4000k a. 1.14 ; b.1.24; C.1.34;d. 1.44;e. 1.54

A: Given: The temperature of the CO2, T = 4000 K

Q: 2   Which of the following chemical is used for heat transfer? a. Liquid Ammonia b. LiBr c.…

A: Heat transfer is defined as the movement of molecules from a region of higher temperature to a…

Q: Object A of mass 10 kg moving at 10 m/s [E] collides with Object B of mass 8 kg moving at 10 m/s…

A:

Q: The figure shows a system with a working impeller. The system is adiabatic and at constant pressure.…

A:

Q: While at sea level the atmospheric pressure is 100 kPa, at the summit of Mount Everest, the pressure…

A: Given question: What is the saturation temperature of water? What is the specific volume of water in…

Q: (Q3] For the system shown below, a=1.2 m, P1-1750 N and P2-2150 N. Find moment about DB.

A:

Q: Question 2 A piston-cylinder device contains steams initially at IMPs. 450°C, and 2.5 m². Steam is…

A: Condition of water initially Pressure P1 = 1 MPaTemperature T1 = 450 °CVolume V1 = 2.5 m3 Now, steam…

Q: Complete this table for H20 T(°C) P(kPa) v(m/kg) h(kJ/kg) X Phase description Table Saturated vapor…

A: T (OC) P (kpa) v (m3/kg) h (kJ/kg) X Phase description Table H2O   450       Saturated vapor…

Q: 2. Prove that in long Fin ,the heat transfer by conduction is equal convection heat transfer if h=20…

A:

Q: 2. The horizontal rigid beam ABCD is supported by vertical bars BE and CF and is loaded by vertical…

A:

Q: Problem 4. Calculate the tension in the cable, and the reactions at A and C 100 mm 100 mm 300 mm-…

A: Given:-  To Find:-  Tension in cable (T)  Reactions at support A and C  (Roller support is there…

Q: The heating rate that a heat pump delivers to a living space of tempera- ture 20°C is 5 kW. The…

A: Note: As per policy, we can solve the first three subparts. Please resubmit the remaining part.…

Q: A reversed Carnot cycle refrigerator maintains a temperature of -5 °c. The ambient air temperature…

A:

Q: The rigid bar of negligible weight is supported as shown. The assembly is initially stress- free.…

A: Answer: (a) The stress in the bronze bar is 50.78 MPa. (b) The stress in the steel bar is 52.11 MPa.…

Q: Steam of 6 MPa and 400-C produced in a boiler at a flow rate of 0.aa6 m³/sec is passed through a…

A: Given:  Boiler pressure, P1 = 6 MPa The Boiler temperature, T1 = 400oC The flow rate, Q = 0.046 m3/s…

Q: Define Heat balance, heat index, specific heat and write a note on heat lose mechanism?

A: To define -  Heat balance. Heat index. Specific heat. Heat loss mechanism .

Q: What is the specific volume of air at 15 psia and 90°F in ft³/lb.?

A:

Q: In 1 paragraph, make a short narrative regarding Energy and the First Law of Thermodynamics

A: Thermodynamics is the branch which state the relationship between the temperatures , heat energy…

Q: An open-cycle gas turbine plant is used to generate power in an oil refinery. The gas turbine unit…

A: GivenWnet=2400kwη0=ηele=92%T5'=Texh=530°C=803kmexh=2kg/sPmaxPmin=8P1=1.013barT1=20°C=293KT6=400°C=63…

Q: An experimental device imparts a force of magni- tude F = 225 N to the front edge of the rim at A to…

A:

Q: A heat transfer mechanism involving heat energy from molecule to molecule mainly in fluids is…

A:

Q: An object of mass 1000 kg, initially having a velocity of 20 m/s, accelerates to a final velocity of…

A:

Q: Determine the gross area of steel needed to desigr the bar force members at BC, BE, and AE. Stress…

A: To find gross area of steel bar

Q: 11. What do you understand by the terms (i) static and (ii) dynamic methods for determination of…

A: In static method the alloy is held at a fixed temperature in the two phase field of solid and…

Q: A 4-m x 5-m X 6-m room is to be heated by a base- board resistance heater. It is desired that the…

A:

Q: L 2L L A/4 2. Assumption: Surfaces normal to x are isothermal,contact resistance between layers is…

A: Equivalent Thermal Circuit

Q: 0 kN. Determine the required cross-sectional area of the wable stresses are 6 MPa for concrete and…

A: Need to determine the cross-Sectional area of reinforcing steel

Q: The ductility of a large copper (k = 386 W/mºC, a = must be increased by quenching before it can be…

A: When a body is an abrupt change in its surface temperature then body will attain steady state…

Q: Determine the resultant of the three forces F= 2.5 -3.3j -2.6k Ib, P=-i+j-2.5k lb, and…

A:

Q: Subject: Thermodynamics Find the enthalphy of nitrogen if its internal energy is 200 KJ/kg

A: Given data: u = 200 kJ/kg Need to determine the enthalpy of nitrogen if its internal energy.

Mechanisms of heat transfer

Heat transfer is an essential discipline in thermal engineering that deals with the transfer, conversion, usability, and creation of heat or thermal energy. Transfer of heat occurs through various mechanisms like conduction, convection, radiation, and change of phases. All these mechanisms have distinct characteristics, but these mechanisms can simultaneously occur in an identical system.