Abstract:
The present invention takes place of solid oxide fuel cell (SOFC) in tests. Some tests among them are done to find ways to recycle exhausts of the SOFC. And, some other tests among them are done to evaluate benefits of re-burning the exhausts. All tests save cost and time.

Description:
FIELD OF THE INVENTION 
       [0001]    The present invention relates to a fuel cell simulator; more particularly, relates to replacing a solid oxide fuel cell (SOFC ) to test fuel reactions of the SOFC with saved cost and time for exhausts recycling or for evaluating benefit of re-burning the exhausts 
       DESCRIPTION OF THE RELATED ART 
       [0002]    Energy price is getting higher and higher day by day; and so it is one of the top issues for every country in the world to find a more efficient energy utilization. 
         [0003]    Fuel cells are widely used as power sources for products of  3 C (computer, communication and customer utility) and for power plants. The fuel cells mainly utilize electro chemical reaction of hydrogen and oxygen to produce power. The efficiencies of the fuel cells are better than the other power sources used in  3 C products or power plants. Among the fuels cells, solid oxide fuel cell (SOFC) is one of the best; yet it is characterized in high temperature exhaust (a temperature between 600 and 1000 Celsius degrees) which is also the most serious technical criterion among criteria for fuel cells. Hence, tests for SOFC becomes very important. 
         [0004]    In the other hand, SOFC usually has a very high unit price; and, its structure is too weak to run severe operation lest it would be easily broken when the environment has changed quite much and becomes severe. Under such an situation, continuous tests may result in high loss. Consequently, a real fuel cell is not suitable to be used in initial integration tests. Hence, the prior art does not fulfill users&#39; requests on actual use. 
       SUMMARY OF THE INVENTION 
       [0005]    The main purpose of the present invention is to replace a SOFC to test fuel reactions of the SOFC with saved cost and time for recycling exhausts or for evaluating benefit of re-burning the exhausts. 
         [0006]    To achieve the above purpose, the present invention is a simulator of fuel cell on gas phase reaction, comprising a connection unit having an anode and a cathode; a combustion unit connected with the anode and the cathode; a sensing and analysis unit connected with the anode and the cathode; a first mass flow control unit connected with the sensing and analysis unit; a first mixing unit connected with the first mass flow control unit; a first heat exchange unit connected with the sensing and analysis unit and the first mixing unit; a second mass flow control unit connected with the sensing and analysis unit; a second mixing unit connected with the second mass flow control unit; and a second heat exchange unit connected with the sensing and analysis unit, the first heat exchange unit and the second mixing unit. Accordingly, a novel simulator of fuel cell on gas phase reaction is obtained. 
     
    
     
       BRIEF DESCRIPTIONS OF THE DRAWINGS 
         [0007]    The present invention will be better understood from the following detailed description of the preferred embodiment according to the present invention, taken in conjunction with the accompanying drawings, in which 
           [0008]      FIG. 1  is the structural view showing the preferred embodiment according to the present invention; 
           [0009]      FIG. 2  is the block view; and 
           [0010]      FIG. 3  is the view showing the state of use. 
       
    
    
     DESCRIPTION OF THE PREFERRED EMBODIMENT 
       [0011]    The following description of the preferred embodiment is provided to understand the features and the structures of the present invention. 
         [0012]    Please refer to  FIG. 1  and  FIG. 2 , which is a structural view and a block view showing a preferred embodiment according to the present invention. As shown in the figures, the present invention is a simulator of fuel cell on gas phase reaction, comprising a connection unit  1 , a combustion unit  2 , a sensing and analysis unit  3 , a first mass flow control unit  4 , a first mixing unit  5 , a first heat exchange unit  6 , a second mass flow control unit  7 , a second mixing unit  8  and a second heat exchange unit  9 , where a solid oxide fuel cell (SOFC) is replaced with the present invention to be tested with saved cost and time. 
         [0013]    The connection unit  1  has an anode  11  and a cathode  12 . 
         [0014]    The combustion unit  2  is connected with the anode  11  and the cathode  12 . 
         [0015]    The sensing and analysis unit  3  is connected with the anode  11  and the cathode  12 , comprising a sensor  31 ; a digital-analog converter  32  connected with the sensor  31 ; a real-time calculation and analysis device  33  connected with the digital-analog converter  32 ; and an analog-digital converter  34  connected with the real-time calculation and analysis device  33 . 
         [0016]    The first mass flow control unit  4  is connected with the sensing and analysis unit  3 , coordinated with a mass flow valve  41  for a hydrogen supply  42 , a mass flow valve  41  for a carbon monoxide (CO) supply  43 , a mass flow valve  41  for a carbon oxide (CO 2 ) supply  44 , a mass flow valve  41  for a methane supply  45  and a mass flow valve  41  for a water supply  46 . 
         [0017]    The first mixing unit  5  is connected with the first mass flow control unit  4 . 
         [0018]    The first mixing unit  5  is connected with the sensing and analysis unit  3  and the first mixing unit  5 , comprising a first heat exchanger  61  and a first temperature regulator  62 . 
         [0019]    The second mass flow control unit  7  is connected with the sensing and analysis unit  3 , coordinated with a mass flow valve  71  for an oxygen supply  72  and a mass flow valve  71  for a nitrogen supply  73 . 
         [0020]    The second mixing unit  8  is connected with the second mass flow control unit  7 . 
         [0021]    The second heat exchange unit  9  is connected with the sensing and analysis unit  3 , the first heat exchange unit  6  and the second mixing unit  8 , comprising a heat exchanger  91  and a temperature regulator  92 . Thus, a novel simulator of fuel cell on gas phase reaction is obtained. 
         [0022]    Please refer to  FIG. 3 , which is a view showing a state of use. As shown in the figure, when the present invention is used as a simulator, a battery unit  13  is connected with a connection unit  1  to mix fuels of the battery unit  13  provided for an anode  11  of the connection unit  1  and a cathode  12  of the connection unit  1  to be burned in a combustion unit  2 . At the same time, a sensor  31  of a sensing and analysis unit  3  senses pressures, compositions and temperatures of the fuels for the anode  11  of the connection unit  1  and the cathode  12  of the connection unit  1 . The data obtained after the sensing are converted into digital signals by an analog-digital converter  32  to be transferred into a real-time calculation and analysis device  33  for analysis and calculation. After the analysis and calculation, the result data are converted into analog signals by a digital-analog converter  34 . Thus, then, a first mass flow control unit  4  and a first heat exchange unit  6  are provided with data of fuel for the anode  11 ; and a second mass flow control unit  7  and a second heat exchange unit  9  are provided with data of fuel for the cathode  12 . 
         [0023]    With the data provided, the first mass flow control unit  4  controls amounts of a hydrogen supply  42 , a CO supply  43 , a CO 2  supply  44 , a methane supply  45  and a water supply  46  through their mass flow valves  41 . After mixing in a first mixing unit  5 , the above gases and water are delivered to a first heat exchanger  61  of the first heat exchange unit  6 . At this moment, fuels for the anode  11  and the cathode  12 , which are mixed and burned in the combustion unit  2 , are delivered into the first heat exchanger  61  of the first heat exchange unit  6  (with a portion delivered into the second heat exchange unit  9 ). A first temperature regulator  62  then figures out a required temperature from the result data from the sensor  31  to heat up or cool down the temperature after the first heat exchanger  61  to simulate an anode exhaust  63  after a reaction at the anode  11 . 
         [0024]    In the other hand, when data of fuels for the cathode  12  are provided to the second mass flow control unit  7 , the second mass flow control unit  7  controls amounts of a oxygen supply  72  and a nitrogen supply  74  through their mass flow valves  71 . After mixing in a second mixing unit  8 , the above gases are delivered to a second heat exchanger  91  of the second heat exchange unit  9 . At this moment, fuels for the anode  11  and the cathode  12  which are mixed and burned in the combustion unit  2 , are also delivered into the second heat exchanger  91  of the first heat exchange unit  9 . A second temperature regulator  92  then figures out a required temperature from the result data from the sensor to heat up or cool down the temperature after the second heat exchanger  91  to simulate a cathode exhaust  93  after a reaction at the cathode  12 . 
         [0025]    To sum up, the present invention is a simulator of fuel cell on gas phase reaction, where SOFC is replaced with the present invention to test fuel reaction of the SOFC with saved cost and time 
         [0026]    The preferred embodiment herein disclosed is not intended to unnecessarily limit the scope of the invention. Therefore, simple modifications or variations belonging to the equivalent of the scope of the claims and the instructions disclosed herein for a patent are all within the scope of the present invention.