« previous next »

Author Question: Describe the heat exchanger in a natural gas fired unit heater. What will be an ideal ... (Read 57 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?

Complications of influenza include: bacterial pneumonia, ear and sinus infections, dehydration, and worsening of chronic conditions such as asthma, congestive heart failure, or diabetes.

Did you know?

The longest a person has survived after a heart transplant is 24 years.

Did you know?

There are more sensory neurons in the tongue than in any other part of the body.

Did you know?

More than 20 million Americans cite use of marijuana within the past 30 days, according to the National Survey on Drug Use and Health (NSDUH). More than 8 million admit to using it almost every day.

Did you know?

The most common childhood diseases include croup, chickenpox, ear infections, flu, pneumonia, ringworm, respiratory syncytial virus, scabies, head lice, and asthma.

Striking examples where high surface area releases heat. Striking examples where high surface area releases heat.
Natural selection acts on genetic variation Natural selection acts on genetic variation
Integrated Gasification Combined Cycle coal-fired stations Integrated Gasification Combined Cycle coal-fired stations
If P(θ) = (√3 /2, -1/ 2), determine the coordinates of P (θ + 90 °) using the unit circle If P(θ) = (√3 /2, -1/ 2), determine the coordinates of P (θ + 90 °) using the unit circle
An automobile engine generates 2160 Joules of heat that must be carried away by An automobile engine generates 2160 Joules of heat that must be carried away by
Alternative sigma factors for heat shock genes Alternative sigma factors for heat shock genes
Video: ATPase function - membrane transport, contractile proteins and synthesis

For a complete list of videos, visit our video library