Determine the maximum possible thermal efficiency of the power plant, and the maximum power output

Q: Figure shows a single-solar-collector panel with a total surface area of 2.97 m^2. The panel…

A: givensurface area of plate A=2.97m2energy lost to surrounding =0.36×total radaitive heat water…

Q: A heat engine is operating on a Carnot cycle and has a thermal efficiency of 55 percent. The waste…

A: Given data  the thermal efficiency of Carnot cycle (η) = 55% or 0.55 heat rejected (Q˙r) = 800…

Q: A 650 MW steam power plant has an efficiency of 62%.it is cooled by rejecting heat to a nearby…

A: Given Data: Power produced, P=650 MW Efficiency, n=62 %

Q: Consider a facility that has a 130-kW compressor that runs 4400 h/yr at an average load factor of…

A: Given data: *The power of the compressor is P=130 Kw. *The time rum by the compressor in a year is…

Q: A heat engine is operating on a Carnot cycle and has a thermal efficiency of 55 percent. The waste…

A:

Q: 5. Electric power is to be generated by installing a hydraulic turbine-generator at a site 120 m…

A: Given data, H = 120 m     (H = height of water from free surface) m = 1500 kg/s   (m = mass flow…

Q: Electric power is to be generated by installing a hydraulic turbine–generator at a site 120 m below…

A: Given data :H= 120 mm.= 1500 kg/s

Q: Water in the rural areas is often extracted from underground water source whose free surface is 65m…

A: To Find :  The power input to the pump in kW . Given :  The height of free surface of water below…

Q: A refrigerator is used to cool water from 23 to 5°C in a continuous manner. The heat rejected in the…

A: Initial Temperature T1=23°Cfinal temperature T2=5°CHeat rejection QR=570 KJ/minpower 'p'=2.65…

Q: A heat pump is used to maintain a space at 25 C during winter while the outdoor temperature is 10 C.…

A:

Q: In a gas turbine unit, the gases flow through the turbine at 13 kg/s and the power developed by the…

A: Given data: Mass flow rate of gas (m.)=13 kg/s The power developed by the turbine (P)=14000 kW The…

Q: A river flows to a lake at a rate of 120 m/s. The river is located at an elevation of 100 m above…

A: Given data: Volumetric flow rate of river into the lake, Q=120 m3/s. River is located at a elevation…

Q: : A-Steam enters a turbine with a velocity of 40 m/s and specific enthalpy 2990 kJkg . the steam…

A: As per honor code and answering guidelines I can answer 1st question at a time.There ate 2 question…

Q: Consider mixing some of the ice water with the hot water and vice versa so that the two reservoirs…

A: Mixing of cold water with hyot water & vice versa is an irreversibleprocess .ii) The mixing…

Q: Air enters the compressor of a gas-turbine engine at 300 K and 100 kPa, where it is compressed to…

A: Given: Pressure P1=100kPaTemperature T1=300KPressure P2=700kPaTemperature T2=580KHeat supplied…

Q: Determine the expressions for the thermal efficiencies and coefficients of performance for…

A:

Q: An Ocean Thermal Energy Conversion (OTEC) power plant built in Hawaii in 1987 was designed to…

A: Mass flow rate can be determined as Rate of heat rejection to cooling water is

Q: A heat engine receives heat from a source at 1100 K at a rate of 400 kJ/s, and it rejects the waste…

A: Given: The temperature of the source is T1=1100 K. The temperature of the medium is T2=320 K. The…

Q: Refrigerant-134a enters the condenser of a residential heat pump at 1.6 MPa and 80°C at a rate of…

A: Given     Pressure, P = 1.6 MPa        Power, P = 2.3 kW

Q: Steam enters a turbine at 1380 kPa with internal energy of 2705 kJ/kg and specific volume of 0.1655…

A: Given data: Initial pressure, P1=1380kPaInitial internal energy, u1=2705kJkgInitial specific volume,…

Q: Heat is transferred to a heat engine from a furnace at a rate of 80 MW. If the rate of waste heat…

A: Given, Heat from furnace (QH) = 80 MW Heat loss (QL )= 50 MW

Q: During a 24-hour operation of a Diesel power plant, it consumed 200 gallons of 25oAPI fuel at 28oC…

A:

Q: In large steam power plants, the feedwater is often heated in closed feedwater heaters, which are…

A: Given, P1 = 1.6 MPa T1 = 250°C P2 =P1 = 1.6 MPa T3 = 30°C P3 = 4 MPa P4 = P3 = 4 MPa T4 = T2- 10°C…

Q: Obtain a relation for the second-law efficiency of a heat engine that receives heat QH from a source…

A: Given: The heat received from the source is QH. The heat rejected at the sink is QL. The…

Q: What is the Carnot efficiency of an automobile engine which supplies heat at 800 K and reject heat…

A: Carnot cycle is an imaginary cycle that gives the maximum possible efficiency between two…

Q: The utility company is selling electric power for $0.06/kWh at night, and $0.13/kWh for power…

A: Calculate the power required for pumping operation. Pin=γQH+hLηp Here, Pin is the power required for…

Q: In large steam power plants, the feedwater is often heated in closed feedwater heaters, which are…

A: The initial enthalpy and entropy of the steam  obtained from the steam table at given pressure and…

Q: A reversed Carnot engine operates between 250 K and 300 K and receives 100 kW of heat at the lower…

A:

Q: A completely reversible heat pump has a COP of 1.6 and a sink temperature of 300 K. Calculate the…

A: Given: The coefficient of the performance of the heat pump is COP=1.6. The temperature of the sink…

Q: A heat engine is operating on a Carnot cycle and has a thermal efficiency of 55 percent. The waste…

A: Given data:- heat rejected to lake = 900 kJ/min lake temperature = 60°C efficiency of carnot engine…

Q: Refrigerant-134a enters the condenser of a residential heat pump at 800 kPa and 35°C at a rate of…

A: Given data: Inlet pressure of the refrigerant, P1 = 800 kPa. The inlet temperature of the…

Q: What is the difference between refrigerators and heat pumps? From their mechanics and theory

A: The heat pump and refrigerator can be described as: Refrigerator: The refrigerator is a device that…

Q: Air (R = 0.3074 psia.cf/lbm.R) is compressed from 14.7 psia and 60°F to a pressure of 150 psia while…

A: Given data P1=14.7 psiaT1=60°F

Q: Consider an under ground water source whose free surface is 60 m below ground level. The water is to…

A:

Q: thermal power plant over temperature range of 400 - 750 degree celcius

A: GIVEN: T1=750CT2=400C

Q: A heat engine is supplied heat at the rate of 1700 kJ/min and gives an output of 9 kW. Determine the…

A: Given Data⇒ Heat suppliedQs=1700KJminOutputW=9 KW Problem statement⇒ Problem says Determine the…

Q: The Parameter which defines the degree of deviation of actual compression process from ideal…

A: The isothermal efficiency of a compression process can be written as the ratio of isothermal work to…

Q: A heat engine is operating on a Carnot cycle and has a thermal efficiency of 50 percent. The waste…

A: Given:-  Thermal efficiency = 50℅ Sink Temperature (TL) = 60°F Heat rejected to sink = 800 BTU/min…

Q: steam power plant of 40% thermal efficiency receives heat of 150 MJ at high temperature while…

A: Given data :- thermal efficiency = 40 % heat received = 150 MJ work for circulating water = 10 MJ…

Q: A refrigerant unit used in an air conditioning unit using R-134a as a refrigerant is mounted in the…

A: Assuming ideal vapour compression refrigeration system Qd = 1.5KW T1 = 15°C, evaporator section T2 =…

Q: Q1/ Electric power is to be generated by installing a hydraulic turbine- generator at a site 120 m…

A: Given data  Available Head (H) = 120 m  Mass flow rate (m˙) = 2400 kg/s   To determine  the power…

Q: Consider a river flowing toward a lake at an average velocity of 5m/s at a rate of 450 m3/s at a…

A:

Q: A refrigerator is to remove heat from the cooled space at a rate of 300 kJ/min to maintain its…

A:

Q: A heat engine receives heat from a heat source at l1200°C and has a thermal efficiency of 40%. The…

A: Heat supplied is the heat supplied for the power generation or for the useful work of a machine.…

Q: determine the amount of electric energy and the revenue generated per day for a unit price of RM0.40…

A:

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.