Question

Why is Higher Latent Heat Vaporization of ammonia make it more efficient compared to R22 which...

Why is Higher Latent Heat Vaporization of ammonia make it more efficient compared to R22 which has lower latent heat of vaporization?

Engineering   Mechanical-Engineering   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

Ammonia is the cheapest refrigerant. The price per kg for R22 is about 2.5 times and R134a is about 7.0 times the price of ammonia. For a large cold storage, the operation costs are 20-30% lower with ammonia than R22. Besides that, only half as much material needs to be purchased to charge a system because the density of ammonia is half of halocarbons.

Refrigerant Cost

  • Ammonia R717 - RM5/kg
  • R22 - RM10/kg

Density of at 1.013bar at boiling point: 682kg/m3 (ammonia liquid), 1413kg/m3 (liquid R22) .

Due to which the size of plans is reduced and amonia become more efficient than R22.

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
The latent heat of vaporization (Lv) is similar to the latent heat of fusion (Lf), except...
The latent heat of vaporization (Lv) is similar to the latent heat of fusion (Lf), except that it relates to boiling rather than melting. For water, Lv = 2.26 x 106 J/kg. .970 kg of steam at 100°C (the boiling point of water) is put in contact with a 13.5 kg piece of metal. The initial temperature of the piece of metal is 70.0°C. When the piece of metal reaches 100°C, .0420 kg of steam has condensed.     a.         How much heat...
The latent heat of vaporization (Lv) is similar to the latent heat of fusion (Lf), except...
The latent heat of vaporization (Lv) is similar to the latent heat of fusion (Lf), except that it relates to boiling rather than melting. For water, Lv = 2.26 x 106 J/kg. .970 kg of steam at 100°C (the boiling point of water) is put in contact with a 13.5 kg piece of metal. The initial temperature of the piece of metal is 70.0°C. When the piece of metal reaches 100°C, .0420 kg of steam has condensed.     a.         How much heat...
The latent heat of vaporization (Lv) is similar to the latent heat of fusion (Lf), except...
The latent heat of vaporization (Lv) is similar to the latent heat of fusion (Lf), except that it relates to boiling rather than melting. For water Lv = 2.26 x 10^6 J/kg. .970 kg of steam at 100 degrees celsius (the boiling point of water) is put in contact with a 13.5 kg piece of metal. The initial temperature of metal piece is 70.0 degree celsius. When the piece of metal reaches 100 degrees celsius, .0420 kg of steam has...
Why is the heat of vaporization of a molecule with a molecular mass of 346.2 g/mol...
Why is the heat of vaporization of a molecule with a molecular mass of 346.2 g/mol higher than the heat of vaporization of a molecule with a molar mass of 157.4 g/mol?
which is more efficient vaccination or treatment? 1. which is more efficient vaccination or treatment? 2....
which is more efficient vaccination or treatment? 1. which is more efficient vaccination or treatment? 2. why can drug tratments NOT cure HIV? A. HIV is resistant to all drugs B. HIV maintains a latent viral reservoir C. HIV continually reinfects people D. all of the above E. None of the above
Enzymes are used as meat tenderizers, Discuss why they are being used – more efficient, higher...
Enzymes are used as meat tenderizers, Discuss why they are being used – more efficient, higher yields, less waste? What was used before enzymes, if anything?
1. Water has an unusually high specific heat, melting point, boiling point, and heat of vaporization...
1. Water has an unusually high specific heat, melting point, boiling point, and heat of vaporization as compared to compounds of similar molar mass.  Explain why. 2. Explain why the state of Connecticut uses a brine solution of magnesium chloride in water, instead of sodium chloride followed by sand on the roads after an ice storm. Include any formulas an engineer would need for the project.
Q8 a) Define (i) Specific Heat Capacity, (ii) Specific Latent Heat. b) 500g of water at...
Q8 a) Define (i) Specific Heat Capacity, (ii) Specific Latent Heat. b) 500g of water at temperature of 15°C is placed in a freezer. The freezer has a power rating of 100W and is 80% efficient. (i) Calculate the energy required to convert the water into ice at a temperature of -20°C. (ii) How much energy is removed every second from the air in the freezer? (iii) How long will it take the water to reach a temperature of -20°C?...
Which of the two isolation methods is theoretically more efficient (which method should yield more of...
Which of the two isolation methods is theoretically more efficient (which method should yield more of the compound)? Why is it more efficient? ​
Why are price changes more costly to make compared to quantity changes? How important are signals...
Why are price changes more costly to make compared to quantity changes? How important are signals in the market in deciding price and quantity changes? What reliable signals is this firm getting?
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT