FULL SCALE EXPERIMENT AND NUMERICAL ANALYSIS FOR THE PERFORMANCE OF HEAT EXCHANGER IN MOLTEN CARBONATE FUEL CELLS

2016 ◽  
Vol 40 (5) ◽  
pp. 799-810
Author(s):  
Seon-Hwa Kim ◽  
Byeong-Keun Choi ◽  
Young-Su An
Keyword(s):  
Heat Exchanger ◽  
Fuel Cell ◽  
Flow Characteristics ◽  
Cell System ◽  
Molten Carbonate Fuel Cell ◽  
Molten Carbonate ◽  
Fuel Gas ◽  
Operation Conditions ◽  
Scale Down ◽  
Scale Experiment

This study presents a numerical simulation of heat transfer and flow characteristics of the heat exchanger in molten carbonate fuel cell system. In this study, the actual size of the heat exchanger was simulated in order to avoid errors that can occur from the scale-down test, also the simulation gas (air) was verified with the heat duty of 800,000 kcal/hr. It is analyzed by using a commercial heat exchanger calculation code based upon the test condition. It is found that a reasonable agreement is obtained from comparison between the predicted results and the measured data. Furthermore, the verified similarity was presented in this analysis. In particular, the simulation gas used for the shell side service for the heat exchanger is obtained through the combustion calculation, i.e. by using a flow rate of the fuel gas. In addition, the performance of the heat exchanger is predicted under various conditions in the fuel cell operation conditions by the numerical model.

Study on coal-fired power plant with CO 2 capture by integrating molten carbonate fuel cell system

Energy ◽  
2016 ◽  
Vol 117 ◽  
pp. 578-589 ◽  
Author(s):  
Liqiang Duan ◽  
Kun Xia ◽  
Tao Feng ◽  
Shilun Jia ◽  
Jing Bian
Keyword(s):  
Fuel Cell ◽  
Power Plant ◽  
Cell System ◽  
Molten Carbonate Fuel Cell ◽  
Molten Carbonate ◽  
Fuel Cell System ◽  
Carbonate Fuel Cell

Molten carbonate fuel cell system fed with biofuels for electricity production

2016 ◽  
Vol 41 (41) ◽  
pp. 18815-18821 ◽  
Author(s):  
V. Chiodo ◽  
G. Zafarana ◽  
S. Maisano ◽  
S. Freni ◽  
A. Galvagno ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Cell System ◽  
Molten Carbonate Fuel Cell ◽  
Electricity Production ◽  
Molten Carbonate ◽  
Fuel Cell System ◽  
Carbonate Fuel Cell

scholarly journals Analysis of Internal Gas Leaks in an MCFC System Package for an LNG-Fueled Ship

2019 ◽  
Vol 9 (11) ◽  
pp. 2330
Author(s):  
Gilltae Roh ◽  
Youngseung Na ◽  
Jun-Young Park ◽  
Hansung Kim
Keyword(s):  
Fuel Cell ◽  
Flow Simulation ◽  
Cell System ◽  
Molten Carbonate Fuel Cell ◽  
Gas Temperature ◽  
Molten Carbonate ◽  
Fuel Cell System ◽  
Gas Leakage ◽  
Gas Leak ◽  
Temperature And Pressure

The airflow inside the housing of a 300-kW molten carbonate fuel cell (MCFC) system is designed to ensure safety in case of a gas leak by applying computational fluid dynamics (CFD) techniques. In particular, gas accumulating zones are identified to prevent damage to vulnerable components from high temperature and pressure. Furthermore, the location of the alarm unit with the gas-leak detector is recommended for construction of safe MCFC ships. In order to achieve this, a flow-tracking and contour field (for gas, temperature, and pressure) including a fuel-cell stack module, balance-of-plant, and various pipes is developed. With the simulated flow field, temperature flow is interpreted for the heating conditions of each component or pipe in order to find out where the temperature is concentrated inside the fuel cell system, as well as the increase in temperature at the exit. In addition, the gas leakage from the valves is investigated by using a flow simulation to analyze the gas and pressure distribution inside the fuel cell system.

Small Scale Reforming Separation Systems with Nanomembrane Reactors for Direct Fuel Cell Applications

2010 ◽  
Vol 12 ◽  
pp. 105-113 ◽  
Author(s):  
Savvas Vasileiadis ◽  
Zoe Ziaka
Keyword(s):  
Fuel Cells ◽  
Fuel Cell ◽  
Product Yield ◽  
Cell System ◽  
Membrane Reactors ◽  
Inorganic Membrane ◽  
Small Scale ◽  
Reaction Products ◽  
Molten Carbonate ◽  
Fuel Gas

Our recent communication focuses on small scale and nanoscale type engineering applications of alumina inorganic membrane reactors and reactor-permeator systems for the conversion of renewable and non-renewable hydrocarbons and methane rich streams into hydrogen rich gas for direct inner application and operation of fuel cell systems. This study elaborates on new nanomembrane reactors for the steam-methane/hydrocarbon reforming and water gas shift reactions, including work in the synthesis, manufacturing, modeling and operation of such microreaction systems. The projected small scale reactors, separators and overall reaction systems are of current significance in the area of multifunctional microreactor and nanoreactor design and operation in connection with the operation of fuel cells for transportation, stationary, and portable power generation applications. An added advantage of such systems is the reactive and separative operations of the fuel cell membrane-processor which are combined to convert the hydrocarbon with steam to valuable fuel gas for continuous fuel cell operation. Moreover, the nanomembrane systems under development have the unique characteristics to perform multiple operations per unit volume, such as to utilize beneficial equilibrium shift principles in reactant conversion and product yield through the removal of permselective species (i.e., hydrogen) via the inorganic membrane out of the conversion/reaction zone. In this way, improved hydrogen and product yields can be achieved which exceed the equilibrium calculated yields. Simultaneously, the reaction products, such as synthesis gas (i.e., H2, CO and CO2) at the reactor exit can be used as fuel in mostly solid oxide and molten carbonate fuel cells. The role of the alumina nanomembrane is also in the main conversion and upgrading sections of these feedstocks in order to overcome existing heat and mass transfer limitations and increase the overall efficiency of the microreactor-fuel cell system.

scholarly journals Gas Flow Characteristics in a Molten Carbonate Fuel Cell.

1995 ◽  
Vol 61 (581) ◽  
pp. 150-156 ◽  
Author(s):  
Norifumi Ono ◽  
Ryoichiro Oshima ◽  
Hiroaki Koyano ◽  
Yoshitomo Sato ◽  
Sei Takashima
Keyword(s):  
Fuel Cell ◽  
Gas Flow ◽  
Flow Characteristics ◽  
Molten Carbonate Fuel Cell ◽  
Molten Carbonate ◽  
Carbonate Fuel Cell
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