You’re the environmental protection officer for a 35% efficient nuclear power plant that produces 750 MW of electric power, situated on a river whose minimum flow rate is 110m3/s. State environmental regulations limit the rise in river temperature from your plant’s cooling system to 5°C. Can you achieve this standard if you use river water for all your cooling, or will you need to install cooling towers that transfer some of your waste heat to the atmosphere?
Want to see the full answer?
Check out a sample textbook solutionChapter 19 Solutions
Essential University Physics (3rd Edition)
Additional Science Textbook Solutions
Modern Physics
Life in the Universe (4th Edition)
The Cosmic Perspective Fundamentals (2nd Edition)
Physics for Scientists and Engineers: A Strategic Approach with Modern Physics (4th Edition)
Tutorials in Introductory Physics
Cosmic Perspective Fundamentals
- When a gas undergoes an adiabatic expansion, which of the following statements is true? (a) The temperature of the gas does not change. (b) No work is done by the gas. (c) No energy is transferred to the gas by heat. (d) The internal energy of the gas does not change. (e) The pressure increases.arrow_forwardAir flows steadily through an adiabatic turbine, entering at 150 psia, 900°F, and 350 ft/s and leaving at 20 psia, 300°F, and 700 ft/s. The inlet area of the turbine is 0.1 ft2. Determine (a) the mass flow rate of the air and (b) the power output of the turbine.arrow_forwardA turbine designed for an output of 100 MW receives superheated steam with the following conditions; hi = 3550 kJ/kg, v1 = 40 m/s, h2 = 1356 kJ/kg, v2= 125 m/s. Assume no heat loss, determine the desired mass flow rate of the steam (kg/s).arrow_forward
- The internal energy of a system increases by 1350 J when the system absorbs 1150 J of heat energy at a constant pressure of 1.01 X 105 Pa. By how much does the volume (m3) of the system change?arrow_forwardIn 1883, the volcano on Krakatau Island in the Pacific erupted violently in the largest explosion in Earth’s recorded history, destroying much of the island in the process. Global temperature measurements indicate that this explosion reduced the average temperature of Earth by about 1 degree Celsius during the next two decades. Why? Note: The answer to this question is somehow be connected to the law of conservation of energy. As much as possible, connect the answer to it.arrow_forwardA vacuum pump is used to drain a flooded mine shaft at 20-degree Celsius water. The pumppressure of water at this temperature is 2.34 kPa. The pump is incapable lifting the water higherthan 10.16 m. What is the atmospheric pressure?arrow_forward
- A high-pressure gas cylinder contains 70.0 L of toxic gas at a pressure of 2.10 x 107 N/m2 and a temperature of 14.0°C. Its valve leaks after the cylinder is dropped. The cylinder is cooled to dry Ice temperatures (-78.5°C), to reduce the leak rate and pressure so that it can be safely repaired. (a) What is the final pressure in the tank, assuming a negligible amount of gas leaks while being cooled and that there is no phase change? N/m² (b) What is the final pressure if one-tenth of the gas escapes? N/m² (c) To what temperature must the tank be cooled to reduce the pressure to 1.00 atm (assuming the gas does not change phase and that there is no leakage during cooling)? K Additional Materialsarrow_forwardA closed system consisting of 2 lb of a gas undergoes a process during which the relation between pressure and volume is pV" = constant. The process begins with p₁ = 25 lbf/in², V₁ = 13 ft³ and ends with p2 = 100 lbf/in². The value of n = 1.3. Determine the final volume, V₂, in ft3, and determine the specific volume at states 1 and 2, in ft³/lb.arrow_forwardWater at 15°C is to be pumped from a reservoir (zA = 2 m) to another reservoir at a higher elevation (zB = 9 m) through two 25-m-long plastic pipes connected in parallel. The diameters of the two pipes are 3 cm and 5 cm. Water is to be pumped by a 68 percent efficient motor–pump unit that draws 8 kW of electric power during operation. The minor losses and the head loss in the pipes that connect the parallel pipes to the two reservoirs are considered to be negligible. Determine the total flow rate between the reservoirs and the flow rates through each of the parallel pipes.arrow_forward
- 9:0r A docs.google.com In natural convection, the relative motion of the fluid and the hot body is maintained by some external agency True False * 1Kcal equal 4184J True False The volume strain is the ratio of the change in volume to the original volume True False O The First law of Thermodynamics is (Q=W- (AU * True Falsearrow_forwardA high-pressure gas cylinder contains 50.0 L of toxic gas at a pressure of 1.40 X 107 N/m2 and a temperature of 25.0oC. Its valve leaks after the cylinder is dropped. The cylinder is cooled to dry ice temperature (-78.5oC) to reduce the leak rate and pressure so that it can be safely repaired. (a) What is the final pressure in the tank, assuming a negligible amount of gas leaks while being cooled and that there is no phase change? (b) What is the final pressure if one-tenth of the gas escapes? (c) To what temperature must the tank be cooled to reduce the pressure to 1.00 atm (assuming the gas does not change phase and that there is no leakage during cooling)? (d) Does cooling the tank appear to be a practical solution?arrow_forwardRefrigerant 134a expands in a piston-cylinder assembly from p; a 200 lb/in? and T₁-140°F to p2-30 lb/in² and T-80 °F. The mass of refrigerant is 0.46 lb. During the process, the work done by the refrigerant is 4.32 Btu. Kinetic and potential energy effects are negligible. Determine the initial volume of the refrigerant. V₁, in ft, and the heat transfer for the process, in Btu.arrow_forward
- Principles of Physics: A Calculus-Based TextPhysicsISBN:9781133104261Author:Raymond A. Serway, John W. JewettPublisher:Cengage Learning