« previous next »

Author Question: What is the difference between a draw-through air system and a blow-through air system? What will ... (Read 24 times)

magmichele12

  • Hero Member
  • *****
  • Posts: 559
on: Jul 26, 2018
What is the difference between a draw-through air system and a blow-through air system?
 
  What will be an ideal response?

Question 2

How does an Infrared leak detector work?
 
  What will be an ideal response?


yuyiding

  • Sr. Member
  • ****
  • Posts: 357
Reply #1 on: Jul 26, 2018
Answer to Question 1

In the air handling unit, air passes through the filters, preheater, cooling coil, heating coil, reheater, and finally the fan. This type of system is referred to as a draw-through system because the fan is located after the coils and draws the air across them. A blow-through system would locate the fan before the coils.

Answer to Question 2

Refrigerant is drawn into the tip and travels between an infrared light source and an infrared light sensor. When refrigerant enters the tip, it reflects the infrared radiation and blocks the sensor from seeing it, much like a cloud can block the sun on a cloudy day.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question

magmichele12

  • Hero Member
  • *****
  • Posts: 559
Reply #2 on: Jul 26, 2018
Thank you!


yuyiding

  • Sr. Member
  • ****
  • Posts: 357
Reply #3 on: Jul 26, 2018
Always glad to help...


« 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?

Acetaminophen (Tylenol) in overdose can seriously damage the liver. It should never be taken by people who use alcohol heavily; it can result in severe liver damage and even a condition requiring a liver transplant.

Did you know?

Approximately 15–25% of recognized pregnancies end in miscarriage. However, many miscarriages often occur before a woman even knows she is pregnant.

Did you know?

Recent studies have shown that the number of medication errors increases in relation to the number of orders that are verified per pharmacist, per work shift.

Did you know?

Chronic necrotizing aspergillosis has a slowly progressive process that, unlike invasive aspergillosis, does not spread to other organ systems or the blood vessels. It most often affects middle-aged and elderly individuals, spreading to surrounding tissue in the lungs. The disease often does not respond to conventionally successful treatments, and requires individualized therapies in order to keep it from becoming life-threatening.

GI System GI System
The autonomic nervous system with its sympathetic and parasympathetic divisions The autonomic nervous system with its sympathetic and parasympathetic divisions
VITROS DT60II automated blood analysis system. VITROS DT60II automated blood analysis system.
Four methods of recording electrical activity of the nervous system. Four methods of recording electrical activity of the nervous system.
The male reproductive system. The male reproductive system.
Difference-Between-Carbohydrates-and-Lipids-infographic Difference-Between-Carbohydrates-and-Lipids-infographic
Video: Baroreceptor Reflex

For a complete list of videos, visit our video library