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 91 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?

Thyroid conditions may make getting pregnant impossible.

Did you know?

Egg cells are about the size of a grain of sand. They are formed inside of a female's ovaries before she is even born.

Did you know?

In the United States, there is a birth every 8 seconds, according to the U.S. Census Bureau's Population Clock.

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?

The first oncogene was discovered in 1970 and was termed SRC (pronounced "SARK").

Types of cell adhesion molecules (CAMs) Types of cell adhesion molecules (CAMs)
cell signaling + Apoptosis cell signaling + Apoptosis
Advantages and disadvantages of select temperature measurement sites Advantages and disadvantages of select temperature measurement sites
Ford uses an inertia switch to turn off the electric fuel pump in case of an accident. Ford uses an inertia switch to turn off the electric fuel pump in case of an accident.
An emission tester that uses nitrogen to pressurize the fuel system. An emission tester that uses nitrogen to pressurize the fuel system.
Color-enhanced electron micrograph of E. coli undergoing cell division Color-enhanced electron micrograph of E. coli undergoing cell division
Video: Appendicitis Animation

For a complete list of videos, visit our video library