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

Author Question: What are the disadvantages to the alkaline fuel cell (AFC) that make it more expensive to operate ... (Read 118 times)

penguins

  • Hero Member
  • *****
  • Posts: 903
on: Jul 26, 2018
What are the disadvantages to the alkaline fuel cell (AFC) that make it more expensive to operate than other fuel cells?
 
  What will be an ideal response?

Question 2

Describe the operation of a direct-methanol fuel cell (DMFC).
 
  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

morrie123456

  • Sr. Member
  • ****
  • Posts: 314
Reply #1 on: Jul 26, 2018
Answer to Question 1

The primary disadvantage is the requirement for pure oxygen and pure hydrogen. The fuel cell is also poisoned easily by CO2 and they have a shorter average lifetime than other fuel cell, making them less cost effective.

Answer to Question 2

Methanol and water is supplied to the fuel cell and hydrogen is extracted from the methanol by a steam reformer. Electrons are released from the hydrogen at the anode and travel through the external circuit to the cathode as electrical current. Oxygen is from air is ionized at the cathode and oxygen ions combine with hydrogen ions to form water.


penguins

  • Hero Member
  • *****
  • Posts: 903
Reply #2 on: Jul 26, 2018
TY


morrie123456

  • Sr. Member
  • ****
  • Posts: 314
Reply #3 on: Jul 26, 2018
You're welcome


« previous next »
 

Did you know?

Adults are resistant to the bacterium that causes Botulism. These bacteria thrive in honey – therefore, honey should never be given to infants since their immune systems are not yet resistant.

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?

Signs of depression include feeling sad most of the time for 2 weeks or longer; loss of interest in things normally enjoyed; lack of energy; sleep and appetite disturbances; weight changes; feelings of hopelessness, helplessness, or worthlessness; an inability to make decisions; and thoughts of death and suicide.

Did you know?

A good example of polar molecules can be understood when trying to make a cake. If water and oil are required, they will not mix together. If you put them into a measuring cup, the oil will rise to the top while the water remains on the bottom.

Did you know?

Carbamazepine can interfere with the results of home pregnancy tests. If you are taking carbamazepine, do not try to test for pregnancy at home.

Stem cell division and differentiation Stem cell division and differentiation
cell signaling + Apoptosis cell signaling + Apoptosis
A platinum tipped spark plug that is fuel soaked indicating a fault with the fuel system or the ... A platinum tipped spark plug that is fuel soaked indicating a fault with the fuel system or the ...
Notice that there are conditions when the port fuel-injector, located in the intake manifold, and ... Notice that there are conditions when the port fuel-injector, located in the intake manifold, and ...
IgE binding to a mast cell. IgE binding to a mast cell.
The cell cycle has three stages: interphase, mitosis, and cytokinesis The cell cycle has three stages: interphase, mitosis, and cytokinesis
Video: Alternative Energy Sources

For a complete list of videos, visit our video library