« previous next »

Author Question: What is the difference between a draw-through air system and a blow-through air system? What will ... (Read 70 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?

The types of cancer that alpha interferons are used to treat include hairy cell leukemia, melanoma, follicular non-Hodgkin's lymphoma, and AIDS-related Kaposi's sarcoma.

Did you know?

Everyone has one nostril that is larger than the other.

Did you know?

Though “Krazy Glue” or “Super Glue” has the ability to seal small wounds, it is not recommended for this purpose since it contains many substances that should not enter the body through the skin, and may be harmful.

Did you know?

Anesthesia awareness is a potentially disturbing adverse effect wherein patients who have been paralyzed with muscle relaxants may awaken. They may be aware of their surroundings but unable to communicate or move. Neurologic monitoring equipment that helps to more closely check the patient's anesthesia stages is now available to avoid the occurrence of anesthesia awareness.

Did you know?

Dogs have been used in studies to detect various cancers in human subjects. They have been trained to sniff breath samples from humans that were collected by having them breathe into special tubes. These people included 55 lung cancer patients, 31 breast cancer patients, and 83 cancer-free patients. The dogs detected 54 of the 55 lung cancer patients as having cancer, detected 28 of the 31 breast cancer patients, and gave only three false-positive results (detecting cancer in people who didn't have it).

Metric System: Measure of Weight and Volume Metric System: Measure of Weight and Volume
Female Reproductive System "الجهاز التناسلي للأنثى" Female Reproductive System "الجهاز التناسلي للأنثى"
The Autonomic Nervous System The Autonomic Nervous System
Integumentary system & Skeletal system Integumentary system & Skeletal system
Major Elements of the Genitourinary System Major Elements of the Genitourinary System
Draw a full and complete mechanism for the following reaction shown below. Draw a full and complete mechanism for the following reaction shown below.
Video: PET Scan Animation

For a complete list of videos, visit our video library