This is part one of a two-part problem. Water at 2.0 kg/s enters the boiler at 40°Cand 2000 kPa and exits the boiler at 2000 kPa. If the heat transfer rate into the boileris 8 000 kW, what is the specific enthalpy (h) at the exit of the boiler?BoilerTurbine This is part two of a two-part problem. Water at 2.0 kg/s enters the boiler at 40°Cand 2000 kPa and exits the boiler at 2000 kPa. The heat transfer rate into the boileris 8 000 kW. The water exits the turbine as a saturated vapour at 400 kPa. What isthe power produced by the turbine?2BoilerTurbine3

Answered: Image /qna-images/answer/8274727c-e135-4207-b33f-e7282bc1b450.jpg

This is part one of a two-part problem. Water at 2.0 kg/s enters the boiler at 40°C and 2000 kPa and exits the boiler at 2000 kPa. If the heat transfer rate into the boiler is 8 000 kW, what is the specific enthalpy (h) at the exit of the boiler? Boiler Turbine 3

This is part one of a two-part problem. Water at 2.0 kg/s enters the boiler at 40°C and 2000 kPa and exits the boiler at 2000 kPa. If the heat transfer rate into the boiler is 8 000 kW, what is the specific enthalpy (h) at the exit of the boiler? Boiler Turbine 3

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

Critically compare how the changes of the heat transfer efficiency will affect the lifetime of the turbine.
What is the THERMAL efficiency of each process? A completely insulated mixing vessel is designed to deliver water at 60 ⁰Cand atmospheric pressure at a rate of 4 kg/s by mixing two streams of incoming water in an environment at 25 ⁰C. Saturated steam at atmospheric pressure is inserted on the hot side. Two options are being considered for the cold side: (a) chilled water from the plant at 3 ⁰C or (b) water from the tap at 20 ⁰C (both at atmospheric pressure).
Air (R = 0.3074 psia.cf/lbm.R) is compressed from 14.7 psia and 60°F to a pressure of 150 psia while heat loss rate during the steady compression is 10 Btu/lbm. The volume flow rate of the air at the inlet is 5,000 ft'/min and the power input to the compressor is 700 hp. Determine the temperature at the compressor exit in °F. (1hp = 0.7068 Btu/s) AIR %3D 10 Bru Ibm
As the refrigerant as shown in the figure, R134a fluid is used in a commercial refrigerator. The refrigerant leaves the evaporator at a temperature of -33.5°C (239.65 K) and a pressure of 60 kPa. It is then compressed to a pressure of 1.2 MPa and a temperature of 64°C (337.15 K). In the water-cooled condenser, the refrigerant is cooled to 41°C (314.15 K). Water enters the condenser at 18°C and leaves at 26°C. In this context; *Calculate the degree of dryness (quality) of the refrigerant at the evaporator inlet [%]. (I ask you to write with the keyboard so that I can understand the answers. Thank you)
Question 3 Consider the turbocharger of an internal combustion engine. The exhaust gases enter the turbine at 450°C at a rate of 0.02 kg/s and leave at 400°C. Air enters the compressor at70°C and 95 kPa at a rate of 0.018 kg/s and leaves at 135 kPa. The mechanical efficiency between the turbine and the compressor is 95 percent (5 percent of turbine work is lost duringits transmission to the compressor). Using air properties for the exhaust gases, determine:(a).The turbine power output, compressor power input, air temperature at the compressor exit,(b).The air temperature at the compressor for the case of isentropic process and isentropic efficiency of the compressor.
Not ai generated please show all steps
A commercial airliner is flying at an altitude where the temperature and pressure of the air are -50°C and 26.5 kPa. An engine-driven compressor will take this air at T= -50°C, P₁ = 26.5 kPa and compress it to P₂ = P₂ = 85.0 kPa to pressurize the cabin. The air will be very hot when it exits the compressor, so a heat exchanger will be used to cool the air to T, = 20°C before it enters the cabin. Cold air at T₁ = -50°C will be used in the heat exchanger to cool the cabin air, and this air will exit the heat exchanger at T = 20°C (this air will be used to heat the cargo bay). The mass flow rate of the air delivered to the cabin is 0.80 kg/s and the compressor efficiency is 75%. Model the air as an ideal gas having constant specific heat, using 300 K values from Cengel's tables posted on Canvas. a) Find the actual temperature of the air exiting the compressor and the power input to the compressor (answers: 67.6°C and 94.5 kW). b) Find the rate of heat transfer in the heat exchanger and…
Ammonia refrigerant circulates in a refrigeration system with one compressor serving two evaporators where one evaporator carries a load of 35 kW at 10°C and the other a load of 70 kW at -5°C. A back pressure valve reduces the pressure in the 10°C evaporator to that of the -5°C evaporator. The condensing temperature is 37°C. Calculate the mass of the refrigerant in kg/s. (Use h₂ = h1 + 203.7586 kJ/kg)
A boiler produces 25 kg/s of steam at 3 MPa and 600 °C, cools the condenser with seawater so that the outlet is at 45 °C, then reheats at 500 kPa up to 400 °C, then takes perform a low pressure expansion in the turbine. Determine: net power output
A two-cylinder R-134a compressor operating at 1500 rpm. The evaporator temperature is (-6°C) and the condensing temperature is 35°C? The bore and stroke of the compressor are 106.3 by 115.6 mm. The compressor can handle a refrigerating capacity of 105.8 tons. Determine volumetric efficiency and the power of compressor if the discharge enthalpy is 433 kJ/kg.
An ammonia refrigeration compressor takes its suction from the evaporator at a temperature of -20oF (-28.9oC) and a quality of 95%. The compressor discharges at a pressure of 100 psi (689.5 kPa), liquid ammonia leaves condenser at 50oF (10oC). Properties of Ammonia: At 689.6 kPa (Tsat = 13.3oC) h = 1,568 kJ/kg; s = 5.7676 kJ/kg.K At 10oC: hf = 246.531 kJ/kg At -28.9oC by interpolation hf = 68.5 kJ/kg; hg = 1424.5 kJ/kg sf = 0.49366; sg = 6.0452Find the COP. a. 4 b. 4.25 c. 5 d. 5.25
There is a hot water source in New Delhi.Our plan is to use this heat source for heating and hot water supplies of a site of 50 hostels. The outlet temperature of the water from the source is 100°C. Calculate the power required for the pump used to pump the water to the surface. isentropic pump efficiency is 0.9