Find the required force and work involved in the process. Determine the total amount of work done during the process. What pressure is needed and how much work is done? If the piston is moved 0. One has a cross sectional area of 0. To deliver a work of 1 kJ to the piston how large a displacement V and piston motion H is needed for each cylinder? Neglect Patm. Find the required force and work input. What diameter cylinder should I have to restrict the rod motion to maximum 0.
How long will a car of kg drive for a work input of 25 kJ? How much energy is used to overcome the air drag driving for 30 minutes? Borgnakke Boundary work simple 1 step process 4. It is now cooled so the water occupies half the original volume. Find the work in the process. Solution: Table B. What is the pressure and the quality of the water, when it has cooled to 25oC? How much work is done?
Solution: Control volume radiator. After the valve is closed no more flow, constant volume and mass. Solution: State 1 from Table B. Cylinder B, having a frictionless piston of such mass that a pressure of kPa will float it, is initially empty.
The valve is opened and argon flows into B and eventually reaches a uniform state of kPa, 30oC throughout. What is the work done by the argon?
Solution: Take C. Boundary movement work done in cylinder B against constant external pressure of kPa. A constant pressure process gives 18 kJ of work out.
Find the final volume and temperature of the air. At this state the piston is 0. The temperature is then changed to oC. Solution: State 1 from B. Calculate the work done in the process. Solution: Constant pressure process boundary work. State properties from Table B. It is now heated in a process where pressure is linearly related to volume to a state of kPa, oC.
Find the final volume and the work in the process. Take as CV the 1. Saturated vapor Ra at 50oC changes volume at constant temperature.
Find the new pressure, and quality if saturated, if the volume doubles. Repeat the question for the case the volume is reduced to half the original volume. Solution: Ra 50oC Table B.
Air is let in under the piston that rises and pushes the water out over the top edge. Find the necessary work to push all the water out and plot the process in a P-V diagram.
Initially the piston rests on some stops with the top surface open to the atmosphere, Po, so a pressure of kPa is required to lift it. To what temperature should the ammonia be heated to lift the piston? If it is heated to saturated vapor find the final temperature, volume, and the heat transfer. Do you need an answer to a question different from the above? Ask your question! We want to correct this solution. Tell us more. Was the final answer of the question wrong? The pressure in the cylinder should be kPa to Create an Account and Get the Solution.
Log into your existing Transtutors account. Have an account already? Click here to Login. No Account Yet? Click here to Sign Up. Sign in with Facebook. Looking for Something Else? Ask a Similar Question Ask Now. Recommended Videos Problem 2. Problem 3. Problem 4. Problem 5. Problem 6. Problem 7.
Problem 8. Problem 9. Problem Video Transcript for this problem. Math Review - Intro In mathematics, a proof is a sequence of statements given to explain how a c…. Algebra - Example 1 In mathematics, algebra is one of the broad parts of mathematics, together w…. A mass of 3 kg of saturated liquid-vapor mixture of water is contained in a ….
0コメント