This topic contains a solution. Click here to go to the answer

Author Question: How is net stack temperature determined? What will be an ideal ... (Read 40 times)

serike

  • Hero Member
  • *****
  • Posts: 542
How is net stack temperature determined?
 
  What will be an ideal response?

Question 2

Calculate the amount of heat in BTUs required to change 5 pounds of 10F ice to 242F steam?
 
  What will be an ideal response?



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

fdliggud

  • Sr. Member
  • ****
  • Posts: 366
Answer to Question 1

Stack temperature - ambient temperature = net stack temperature

Answer to Question 2

The heat required to increase the temperature of 5 pounds of ice from 10F to

32F is calculated using the specific heat formula:

BTUs = pounds x F T x specific heat capacity in BTU per pound.

BTUs=5 lb x 22 x 0.5 = 55 BTUs

The heat required to melt 5 pounds of ice is calculated using the latent heat

formula:

BTU = weight x latent heat factor

BTU= 5 x 144 = 720 BTUs

The heat required to increase the temperature of 5 pounds of water from 32F

to 212F is calculated using the specific heat formula:

BTUs = pounds x F T x specific heat capacity in BTU per pound.

BTUs=10 lb x 180 x 1 = 1800 BTUs

The heat required to boil 5 pounds of water is calculated using the latent heat

formula:

BTU = weight x latent heat factor BTU= 5 x 970 = 4850 BTUs
The heat required to increase the temperature of a pound of steam from 212F to 242F is calculated using the specific heat formula:

BTUs = pounds x F T x specific heat capacity in BTU per pound. BTUs=5 lb x 30 x 0.5 = 75 BTUs
Finally, sum the results

55 BTUs + 720 BTUs + 1800 BTUs + 4850 BTUs + 75 BTUs = 7500 BTU




serike

  • Member
  • Posts: 542
Reply 2 on: Jul 26, 2018
Gracias!


Jossy

  • Member
  • Posts: 336
Reply 3 on: Yesterday
Excellent

 

Did you know?

As many as 28% of hospitalized patients requiring mechanical ventilators to help them breathe (for more than 48 hours) will develop ventilator-associated pneumonia. Current therapy involves intravenous antibiotics, but new antibiotics that can be inhaled (and more directly treat the infection) are being developed.

Did you know?

Vampire bats have a natural anticoagulant in their saliva that permits continuous bleeding after they painlessly open a wound with their incisors. This capillary blood does not cause any significant blood loss to their victims.

Did you know?

There are actually 60 minerals, 16 vitamins, 12 essential amino acids, and three essential fatty acids that your body needs every day.

Did you know?

Pink eye is a term that refers to conjunctivitis, which is inflammation of the thin, clear membrane (conjunctiva) over the white part of the eye (sclera). It may be triggered by a virus, bacteria, or foreign body in the eye. Antibiotic eye drops alleviate bacterial conjunctivitis, and antihistamine allergy pills or eye drops help control allergic conjunctivitis symptoms.

Did you know?

Critical care patients are twice as likely to receive the wrong medication. Of these errors, 20% are life-threatening, and 42% require additional life-sustaining treatments.

For a complete list of videos, visit our video library