Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Mechanical Engineering Expert

problem1) Given and Compute:

a) R-134a at T = 60°C and v = 0.072 m3/kg. Compute P and h.

b) Ammonia at P = 8 bar and v = 0.005 m3/kg. Compute T and u.

c) R-22 at T = -10°C and u = 200 kJ/kg. Compute P and v.

problem2) Given: R-134a is compressed with no heat transfer in piston-cylinder assembly from 30 lbf/in2, 20oF to 160 lbf/in2. Mass of refrigerant is 0.04 lbm. For refrigerant as system, W = -0.56 Btu. Kinetic and potential energy changes might be neglected.

Compute: final temperature (°F).

problem3) Given: Saturated water vapor is contained in the closed rigid tank. The water is cooled to a temperature of 110°C. At this temperature masses of saturated vapor and liquid are each 1000 kg.

Compute: The heat transfer for the process (kJ).

problem4) Given: 0.5 kg of R-22 is contained in the piston-cylinder assembly, initially saturated vapor at 5 bar. Refrigerant undergoes the  process for which pressure-specific volume relationship is Pv = C to the final pressure of 20 bar. Kinetic and potential energy effects could be neglected.

Compute:

a) Work (kJ) and

b) heat transfer (kJ) for the process.

problem5) Given: A gallon of milk at 68°F is placed in a refrigerator. Energy is removed from milk at a constant rate of 0.08 Btu/s a the milk cools. Specific heat, cp,milk = 0.94 Btu/lbmoR and density, rmilk = 64 lbm/ft3.

Compute: How many minutes would it take for the milk to cool to 48°F? How many minutes to cool another 10°F to 38°F?

Mechanical Engineering, Engineering

  • Category:- Mechanical Engineering
  • Reference No.:- M93958

Have any Question? 


Related Questions in Mechanical Engineering

A transformer winding was designed to be fed by an ac

A transformer winding was designed to be fed by an ac voltage of 110 V and to produce an effective current of 10.5 A. By mistake, the transformer was fed from this same voltage but rectified in a full wave converter. Con ...

You have been introduced to a number of different tools

You have been introduced to a number of different tools that can be used to help IE's and MfgE's analyze and develop solutions to make processes more effective and efficient. Watch the video located at http://www.iienet2 ...

Obtainand research literture on automotive fuel additives

Obtainand research literture on automotive fuel additives and their properties and prepare a typed 2 page report on your findings. -are they worth the money or are they a waste of time? -do they work? -how? -what is your ...

The professor took us to trip to a place and told us to

The professor took us to trip to a place and told us to write 3 pages about What do i think about the trip? What was interesting? What is my impression ? https://www.dropbox.com/s/29un7cfm1jify5v/2016-11-26_20-42_0.rar?d ...

A simply supported beam 5 m long is loaded with a 20 n

A simply supported beam 5 m long is loaded with a 20 N downward force at a point 4 m from the left support. The second moment of area of the cross-section of the beam is 4I 1 for segment AB and I 1 for the remainder of t ...

Wat is the resilience of the bolts and joint this time

What is the resilience of the bolts and joint this time? What is the stiffness ratio of this eccentric joint? By how much does the tensile load of 7.40 kips increase the tension in the bolts and reduce the clamping force ...

A cable with a length h a cross-sectional area a and

A cable with a length H, a cross-sectional area A, and modulus E is attached to the end of a cantilever beam with length L, second moment of area I, and modulus E (same modulus as the cable). The beam is loaded with a fo ...

1 what is a stress-strain diagram2 explain the difference

1. What is a stress-strain diagram? 2. Explain the difference between elastic limit and proportional limit. 3. Explain the difference between the concepts of yield point and yield stress. 4. What is offset strain? IS. Ho ...

Name the principal modes of failure of both tensile and

Name the principal modes of failure of both tensile and shear joints? Describe or list the criteria a bolted joint designer must consider when selecting bolt size and material for a new joint? Will short, fat bolts gener ...

1 find the rotational partition function for

1. Find the rotational partition function for chloroacetylene gas (HCCCl) at 500 K. he rotational constant is B = 0.186 cm -1 2. The rotational partition function for a sample of carbonyl sulide (OCS) is found to be 25.0 ...

  • 4,153,160 Questions Asked
  • 13,132 Experts
  • 2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

WalMart Identification of theory and critical discussion

Drawing on the prescribed text and/or relevant academic literature, produce a paper which discusses the nature of group

Section onea in an atwood machine suppose two objects of

SECTION ONE (a) In an Atwood Machine, suppose two objects of unequal mass are hung vertically over a frictionless

Part 1you work in hr for a company that operates a factory

Part 1: You work in HR for a company that operates a factory manufacturing fiberglass. There are several hundred empl

Details on advanced accounting paperthis paper is intended

DETAILS ON ADVANCED ACCOUNTING PAPER This paper is intended for students to apply the theoretical knowledge around ac

Create a provider database and related reports and queries

Create a provider database and related reports and queries to capture contact information for potential PC component pro