« previous next »

Author Question: Describe the heat exchanger in a natural gas fired unit heater. What will be an ideal ... (Read 51 times)

jeatrice

  • Hero Member
  • *****
  • Posts: 543
on: Jul 22, 2018
Describe the heat exchanger in a natural gas fired unit heater.
 
  What will be an ideal response?

Question 2

What are two most recent greenhouse covering materials that reduce fuel costs more than the other earlier coverings.
 
  What will be an ideal response?


fur

  • Sr. Member
  • ****
  • Posts: 309
Reply #1 on: Jul 22, 2018
Answer to Question 1

Hot exhaust from the fire box passes up through sheet metal tubes while
cool greenhouse air is passed over the outside of the tubes where it picks up heat
from the tubes and then blows out into the greenhouse.

Answer to Question 2

Double layer panels of acrylic plastic and polycarbonate.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Common abbreviations that cause medication errors include U (unit), mg (milligram), QD (every day), SC (subcutaneous), TIW (three times per week), D/C (discharge or discontinue), HS (at bedtime or "hours of sleep"), cc (cubic centimeters), and AU (each ear).

Did you know?

There are more bacteria in your mouth than there are people in the world.

Did you know?

There are immediate benefits of chiropractic adjustments that are visible via magnetic resonance imaging (MRI). It shows that spinal manipulation therapy is effective in decreasing pain and increasing the gaps between the vertebrae, reducing pressure that leads to pain.

Did you know?

Lower drug doses for elderly patients should be used first, with titrations of the dose as tolerated to prevent unwanted drug-related pharmacodynamic effects.

Did you know?

Though the United States has largely rejected the metric system, it is used for currency, as in 100 pennies = 1 dollar. Previously, the British currency system was used, with measurements such as 12 pence to the shilling, and 20 shillings to the pound.

Schematic of Rectification Unit Schematic of Rectification Unit
Heat Exchanger Block Diagram Feedback Control System Heat Exchanger Block Diagram Feedback Control System
A turbocharger uses some of the heat energy that would normally be wasted. A turbocharger uses some of the heat energy that would normally be wasted.
A typical electric motor-driven AIR pump. This unit is on a Chevrolet Corvette and only works when ... A typical electric motor-driven AIR pump. This unit is on a Chevrolet Corvette and only works when ...
Natural Causes of Climate Change Natural Causes of Climate Change
A very light ideal spring stretches by when it is used to hang a 135-N object. What is the ... A very light ideal spring stretches by when it is used to hang a 135-N object. What is the ...
Video: Rods and Cones Animation

For a complete list of videos, visit our video library