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2. Two Carnot engines are operated in series...
2. Two reversible Carnot heat engines operate in series between a source at 427°C and a...
2. Two reversible Carnot heat engines operate in series between a source at 427°C and a sink at 17°C. If the engines have equal efficiencies and the first rejects 400kJ to the second, calculate: (1)the temperature at which heat is supplied to the second engine; (2) the heat taken from the source; (3)the work done by each engine.
A Carnot engine operates us ing 1.0 mol e of monoatomic ideal gas as a working...
A Carnot engine operates us ing 1.0 mol e of monoatomic ideal gas as a working s ubstance. In t he first step, the gas is place d in thermal contact with a heat reservoir and expands isothermally to 3 .0 times its initial volume. (a) If the internal energy o f the gas after this step is 6.25 k J , calculate the temperature of the heat reservoir ( T h ) . (b) C alculate the heat absorbed...
Page 2 of4 Problem A Carnot heat engine received heat from a reservoir at 900 °C...
Page 2 of4 Problem A Carnot heat engine received heat from a reservoir at 900 °C at a rate of 800 k./min and reject the waste heat to the sink at 27°C. The entire work output of the heat engine is used to drive a Carnot refrigerator that removes heat from the refrigerated space at -5 *C and transfer it to the same sink at 27°C. 900 "C 800 kI min Determine: 27"C (a) The Camot heat engine thermal efficiency...
Page 2 of4 Problem A Carnot heat engine received heat from a reservoir at 900 °C...
Page 2 of4 Problem A Carnot heat engine received heat from a reservoir at 900 °C at a rate of 800 k./min and reject the waste heat to the sink at 27°C. The entire work output of the heat engine is used to drive a Carnot refrigerator that removes heat from the refrigerated space at -5 *C and transfer it to the same sink at 27°C 900 ℃ 800 kI min Determine: 27-C (a) The Camot heat engine thermal efficiency...
The solution belongs to the 1st question, i need the solution for the 2nd question. 1....
The solution belongs to the 1st question, i need the solution
for the 2nd question.
1. A single cylinder 1.6 lt, spark ignition engine is operating on the ideal Otto cycle at a compression ratio of 9. The ambient air around the engine is at 1 bar and 20 °C and the fuel consumption of the engine is 13 L/h gasoline at 5600 rpm. Evaluate a. The highest pressure and temperature in the cylinder throughout the cycle b. Net work...
Need help with part D You decide to use your body as a Carnot heat engine....
Need help with part D You decide to use your body as a Carnot heat engine. The operating gas is in a tube with one end in your mouth (where the temperature is 37.0 ∘C) and the other end at the surface of your skin, at 30.0 ∘C. PART A What is the maximum efficiency of such a heat engine? ANS: 2.3% PART B Suppose you want to use this human engine to lift a 2.50 kg box from the...
We have seen that the Carnot cycle can be used to determine the maximum efficiency of...
We have seen that the Carnot cycle can be used to determine the maximum efficiency of a heat engine. The efficiency is defined as the sum of all of the work during the cycle divided by the amount of heat exchanged during the expansion process: efficiency=?1 +?2 +?3 +?3 /?1 Theoretically, the efficiency of the engine can be determined with the hot and cold temperature of the cycle. efficiency = ?h − ?c/ ?h In this problem, we will calculate...
Problem #2 17.5 pts)Topic. Entropy A typical gasoline engine operates at 200°F while the maximum ...
Problem #2 17.5 pts)Topic. Entropy A typical gasoline engine operates at 200°F while the maximum temperature inside the combustion chamber can be 1100F. On the other hand, the temperature of the combustion chamber of a typical diesel engine can reach up to 2500 F. So let's compare the performances of two Carnot cycles, one operating between ~1100°F and 200°F heat reservoirs and the other between ~2500°F and 200°F, to have a first-order crude estimate of engine performance Step a) Choose...
Problem 1 - Gas Turbine Engine. Assume the gas turbine engine operates on basic non-ideal Brayton...
Problem 1 - Gas Turbine Engine. Assume the gas turbine engine operates on basic non-ideal Brayton cycle with the following specifications Inlet Condition: Dry air at 537 R and 14.7 psia Pressure Ratio: 24.2 Actual Exhaust Temperature: 950 F Compressor and Turbine Efficiency: 85% Actual Power Output 34 MW Using given/assumed values, determine: a) firing temperature, b) cycle efficiency, c) air mass flow rate. Problem 2- HRSG. Assume the HRSG is used to produce saturated steam at 600 psia using...
Assignments <Ch 15 HW (Part 2) Problem 15.76 11 of 13 Constants Part A At a...
Assignments <Ch 15 HW (Part 2) Problem 15.76 11 of 13 Constants Part A At a steam power plant, steam engines work in pairs, the heat output of the first one being the approximate heat input of the second. The operating temperatures of the first are 730 C and 450 C, and of the second 425 C and 270 C t the heat of combustion of coal is 2.8 x 10" J/kg, at what rate must coal be burned if...
2. Two reversible Carnot heat engines operate in series between a source at 427°C and a sink at 17°C. If the engines have equal efficiencies and the first rejects 400kJ to the second, calculate: (1)the temperature at which heat is supplied to the second engine; (2) the heat taken from the source; (3)the work done by each engine.
Page 2 of4 Problem A Carnot heat engine received heat from a reservoir at 900 °C at a rate of 800 k./min and reject the waste heat to the sink at 27°C. The entire work output of the heat engine is used to drive a Carnot refrigerator that removes heat from the refrigerated space at -5 *C and transfer it to the same sink at 27°C. 900 "C 800 kI min Determine: 27"C (a) The Camot heat engine thermal efficiency...
Page 2 of4 Problem A Carnot heat engine received heat from a reservoir at 900 °C at a rate of 800 k./min and reject the waste heat to the sink at 27°C. The entire work output of the heat engine is used to drive a Carnot refrigerator that removes heat from the refrigerated space at -5 *C and transfer it to the same sink at 27°C 900 ℃ 800 kI min Determine: 27-C (a) The Camot heat engine thermal efficiency...
The solution belongs to the 1st question, i need the solution
for the 2nd question.
1. A single cylinder 1.6 lt, spark ignition engine is operating on the ideal Otto cycle at a compression ratio of 9. The ambient air around the engine is at 1 bar and 20 °C and the fuel consumption of the engine is 13 L/h gasoline at 5600 rpm. Evaluate a. The highest pressure and temperature in the cylinder throughout the cycle b. Net work...
Problem #2 17.5 pts)Topic. Entropy A typical gasoline engine operates at 200°F while the maximum temperature inside the combustion chamber can be 1100F. On the other hand, the temperature of the combustion chamber of a typical diesel engine can reach up to 2500 F. So let's compare the performances of two Carnot cycles, one operating between ~1100°F and 200°F heat reservoirs and the other between ~2500°F and 200°F, to have a first-order crude estimate of engine performance Step a) Choose...
Problem 1 - Gas Turbine Engine. Assume the gas turbine engine operates on basic non-ideal Brayton cycle with the following specifications Inlet Condition: Dry air at 537 R and 14.7 psia Pressure Ratio: 24.2 Actual Exhaust Temperature: 950 F Compressor and Turbine Efficiency: 85% Actual Power Output 34 MW Using given/assumed values, determine: a) firing temperature, b) cycle efficiency, c) air mass flow rate. Problem 2- HRSG. Assume the HRSG is used to produce saturated steam at 600 psia using...
Assignments <Ch 15 HW (Part 2) Problem 15.76 11 of 13 Constants Part A At a steam power plant, steam engines work in pairs, the heat output of the first one being the approximate heat input of the second. The operating temperatures of the first are 730 C and 450 C, and of the second 425 C and 270 C t the heat of combustion of coal is 2.8 x 10" J/kg, at what rate must coal be burned if...
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