This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: An engineer wishes to select a suction line that will have a maximum pressure drop which is ... (Read 78 times)

ts19998

  • Hero Member
  • *****
  • Posts: 531
on: Jul 26, 2018
An engineer wishes to select a suction line that will have a maximum pressure drop which is equivalent to a 2F saturation temperature drop. What would be the pressure drop for a 134a system operating with a 0F saturation temperature?
 
  What will be an ideal response?

Question 2

Often around fluorescent lights in a drop ceiling there is a narrow slit. What is the purpose and advantages of application?
 
  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

jlaineee

  • Sr. Member
  • ****
  • Posts: 380
Reply #1 on: Jul 26, 2018
Answer to Question 1

134a at 0F saturation is 6.5 psig. 134a at -2F saturation is 5.5 psig 6.5  5.5 = 1 psi drop for a 2F saturation temperature drop

Answer to Question 2

That opening is the return air. The advantage of having a return air around the fluorescents is that the heat generated by the light is pulled back up into the return and is not radiated as much into the occupied space.


ts19998

  • Member
  • Posts: 531
Reply 2 on: Jul 26, 2018
YES! Correct, THANKS for helping me on my review

phuda

  • Member
  • Posts: 348
Reply 3 on: Yesterday
Gracias!

« previous next »
 

Did you know?

Not getting enough sleep can greatly weaken the immune system. Lack of sleep makes you more likely to catch a cold, or more difficult to fight off an infection.

Did you know?

Blood is approximately twice as thick as water because of the cells and other components found in it.

Did you know?

Despite claims by manufacturers, the supplement known as Ginkgo biloba was shown in a study of more than 3,000 participants to be ineffective in reducing development of dementia and Alzheimer’s disease in older people.

Did you know?

In inpatient settings, adverse drug events account for an estimated one in three of all hospital adverse events. They affect approximately 2 million hospital stays every year, and prolong hospital stays by between one and five days.

Did you know?

Increased intake of vitamin D has been shown to reduce fractures up to 25% in older people.

4.1 Age changes in total IQ based on cross-sectional data (lower line) and longitudinal data ... 4.1 Age changes in total IQ based on cross-sectional data (lower line) and longitudinal data ...
The movement of water vapor molecules exerts vapor pressure on surfaces. The movement of water vapor molecules exerts vapor pressure on surfaces.
Finger pressure to a trigger point. Finger pressure to a trigger point.
Use of the elbow to apply pressure to trigger points in the trapezius with the receiver in sitting ... Use of the elbow to apply pressure to trigger points in the trapezius with the receiver in sitting ...
Drop Dead Healthy Drop Dead Healthy
Excel hardware is introducing a new product on a new product line of capacity 800 units per ... Excel hardware is introducing a new product on a new product line of capacity 800 units per ...
Video: Olfaction. or the sense of smell

For a complete list of videos, visit our video library