All Courses
All Courses
Courses by Software
Courses by Semester
Courses by Domain
Tool-focused Courses
Machine learning
POPULAR COURSES
Success Stories
Compare Four different tyoes of Fuel cells andstate their applications FUEL CELL TYPE COMMON ELECTROLYTE OPERATING TEMPERATURE TYPICAL STACK SIZE ELECTRICAL EFFICIENCY (LHV) APPLICATIONS Advantages CHALLENGES Polymer electrolyte membrane (PEM) Perfluorosulfonic acid <120°C <1 kW–100 kW 60% direct H2; a40%…
Satish M
updated on 14 May 2021
Compare Four different tyoes of Fuel cells andstate their applications
FUEL CELL TYPE | COMMON ELECTROLYTE | OPERATING TEMPERATURE | TYPICAL STACK SIZE | ELECTRICAL EFFICIENCY (LHV) | APPLICATIONS | Advantages | CHALLENGES | |
Polymer electrolyte membrane (PEM) | Perfluorosulfonic acid | <120°C | <1 kW–100 kW | 60% direct H2; a 40% reformed fuel b |
Backup power Portable power Distributed generation Transportation Specialty vehicles |
Solid electrolyte reduces corrosion and electrolyte management problems Low temperature Quick start-up and load following |
Expensive catalysts Sensitive to fuel impurities |
|
Alkaline (AFC) | Aqueous potassium hydroxide soaked in a porous matrix, or alkaline polymer membrane | <100°C | 1–100 kW |
|
Military Space Backup power Transportation |
Wider range of stable materials allows lower cost components Low temperature Quick start-up |
Sensitive to CO2 in fuel and air Electrolyte management (aqueous) Electrolyte conductivity (polymer) |
|
Phosphoric acid (PAFC) | Phosphoric acid soaked in a porous matrix or imbibed in a polymer membrane | 150°–200°C |
5–400 kW, 100 kW module (liquid PAFC) <10 kW (polymer membrane) |
40% | Distributed generation |
Suitable for CHP Increased tolerance to fuel impurities |
Expensive catalysts Long start-up time Sulfur sensitivity |
|
Molten carbonate (MCFC) | Molten lithium, sodium, and/or potassium carbonates, soaked in a porous matrix | 600°–700°C | 300 kW–3 MW, 300 kW module |
50% |
Electric utility Distributed generation |
High efficiency Fuel flexibility Suitable for CHP Hybrid/gas turbine cycle |
High temperature corrosion and breakdown of cell components Long start-up time Low power density |
2.
Using a plot with energy density on the X axis and power density on the Y axis, arrange various battery types like lithium ion, lead acid, Nickel Cadmium, Ultracapacitor, fuel cell.
Figure 1 Representation of a battery (Daniell cell) showing the key features of battery operation and the requirements on electron and ion conduction.
Figure 2 Representation of (A, top) an electrochemical capacitor (supercapacitor), illustrating the energy storage in the electric double layers at the electrode−electrolyte interfaces, and (B, bottom) a fuel cell showing the continuous supply of reactants (hydrogen at the anode and oxygen at the cathode) and redox reactions in the cell.
Leave a comment
Thanks for choosing to leave a comment. Please keep in mind that all the comments are moderated as per our comment policy, and your email will not be published for privacy reasons. Please leave a personal & meaningful conversation.
Other comments...
Project 1 (Mini Project on Vehicle Direction Detection
Project Title: Vehicle Direction Determination Aim To create a Simulink model of Vehicle Direction Detection as per the Requirement data. General Overview: Identifying the direction of the vehicle is one of the important & diverse features in Autonomous driving & Advanced Driver Assistance Features. This particular sub-feature…
15 Oct 2023 06:26 PM IST
Project 1
Boost Converter (CCM): Vi=20-30V V0=40V Vo/Vi=1/1-D Range of Duty Cycle if Vi is 20 40/20=2 1-D=0.5 D=0.5 If Vi=30 Vo/vi=4/3 1-D=1.33 D=0.33 Calculation of Load Resistor: As per given data P=600W V0=40V R=Vo^2/P R=1600/600 R=2.66 ohm Calcultion of Inductance: Assume fs=100khz current ripple is 20% Inductor current…
10 Nov 2021 06:47 AM IST
Week 4 Challenge
Consider the following operating points of a fuel cell during a short period of operation. 15 W/cm2 3 W/cm2 27 W/cm2 Where would these points go in the diagram below? The power at some points are as follows P1=1V*0A/cm2 =0w/cm2 P2=0.75*0.3= 0.225 w/cm2 P3= 0.6*0.75 =0.45 w/cm2 P4=0.25*1.15 =0.2875 from the above points…
23 Jun 2021 08:23 AM IST
Week 7 Challenge
The vehicle parameters for modeling in MATLAB/Simulink is as follows fr = coefficient of rolling resistance =0.015g = gravitational acceleration=9.81M = vehicle mass=1910.2kgQ = air density=1.29Cx = aerodynamic drag coefficient=0.4170A = frontal surface area of the vehicle=2.86 The simulation is divided into four sections…
20 May 2021 11:58 AM IST
Related Courses
Skill-Lync offers industry relevant advanced engineering courses for engineering students by partnering with industry experts.
© 2025 Skill-Lync Inc. All Rights Reserved.