Automotive Technology: A Systems Approach (MindTap Course List)
6th Edition
ISBN: 9781133612315
Author: Jack Erjavec, Rob Thompson
Publisher: Cengage Learning
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Chapter 35, Problem 8RQ
To determine
The rules that should be followed for hybrid vehicles.
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This is an old practice exam question.
Steam enters the high-pressure turbine of a steam power plant that operates on the ideal reheat Rankine cycle at 700 psia and 900°F and leaves as saturated vapor. Steam is then reheated to 800°F before it expands to a pressure of 1 psia. Heat is transferred to the steam in the boiler at a rate of 6 × 104 Btu/s. Steam is cooled in the condenser by the cooling water from a nearby river, which enters the condenser at 45°F. Use steam tables.
NOTE: This is a multi-part question. Once an answer is submitted, you will be unable to return to this part.
Determine the pressure at which reheating takes place. Use steam tables.
Find:
The reheat pressure is psia. (P4)Find thermal efficiencyFind m dot
Air at T1 = 24°C, p1 = 1 bar, 50% relative humidity enters an insulated chamber operating at steady state with a mass flow rate of 3 kg/min and mixes with a saturated moist air stream entering at T2 = 7°C, p2 = 1 bar. A single mixed stream exits at T3 = 17°C, p3 = 1 bar. Neglect kinetic and potential energy effects
Determine mass flow rate of the moist air entering at state 2, in kg/min
Determine the relative humidity of the exiting stream.
Determine the rate of entropy production, in kJ/min.K
Chapter 35 Solutions
Automotive Technology: A Systems Approach (MindTap Course List)
Ch. 35 - What are the basic components of a belt alternator...Ch. 35 - What are the main reasons that a mild hybrid...Ch. 35 - Which of the following statements about the...Ch. 35 - The Prius PHEV offers many advantages over the...Ch. 35 - In a Toyota Prius, what members of the planetary...Ch. 35 - Prob. 6RQCh. 35 - Prob. 7RQCh. 35 - Prob. 8RQCh. 35 - After isolating the high-voltage system, what is...Ch. 35 - How often must insulated linemans gloves be tested...
Ch. 35 - Nearly all hybrids have less powerful engines than...Ch. 35 - What is the purpose of a typical inverter?Ch. 35 - On hybrids with a separate cooling system for the...Ch. 35 - During diagnostics, the DTC P3009 is displayed,...Ch. 35 - Which of the following is the least likely to...Ch. 35 - Prob. 1ASRQCh. 35 - When working on a high-voltage system, it is best...Ch. 35 - Prob. 3ASRQCh. 35 - Technician A says diesel engines can be used in a...Ch. 35 - While discussing working on hybrid vehicles:...Ch. 35 - Prob. 6ASRQCh. 35 - Prob. 7ASRQCh. 35 - Technician A says PVE refrigerant oil is commonly...Ch. 35 - Prob. 9ASRQCh. 35 - Prob. 10ASRQ
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- Steam enters the high-pressure turbine of a steam power plant that operates on the ideal reheat Rankine cycle at 700 psia and 900°F and leaves as saturated vapor. Steam is then reheated to 800°F before it expands to a pressure of 1 psia. Heat is transferred to the steam in the boiler at a rate of 6 × 104 Btu/s. Steam is cooled in the condenser by the cooling water from a nearby river, which enters the condenser at 45°F. Use steam tables. NOTE: This is a multi-part question. Once an answer is submitted, you will be unable to return to this part. Determine the pressure at which reheating takes place. Use steam tables. The reheat pressure is psia.Find thermal efficieny Find m dotarrow_forwardThis is an old exam practice question.arrow_forwardAs shown in the figure below, moist air at T₁ = 36°C, 1 bar, and 35% relative humidity enters a heat exchanger operating at steady state with a volumetric flow rate of 10 m³/min and is cooled at constant pressure to 22°C. Ignoring kinetic and potential energy effects, determine: (a) the dew point temperature at the inlet, in °C. (b) the mass flow rate of moist air at the exit, in kg/min. (c) the relative humidity at the exit. (d) the rate of heat transfer from the moist air stream, in kW. (AV)1, T1 P₁ = 1 bar 11 = 35% 120 T₂=22°C P2 = 1 bararrow_forward
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