To produce 1mt /hr of steam in a boiler of capacity 12 kg/cm2 how much hydrogen as a fuel to be burnt in nm3/hr

Explanation:

The given data is as follows.

         Boiler capacity = = 1000 kg/hr

          Steam pressure = 12

For saturated steam, from steam table :

          Steam temperature =

         Specific enthalpy of water = 794.65 kJ/kg

         Specific enthalpy of steam = 2783.10 kJ/kg

Therefore, difference between enthalpy of steam and water  will be calculated as follows.

                         = 2783.10 - 794.65

                         = 1988.45 kJ/kg

So, heat required will be calculated as follows.

      Heat required =

                                 =

                                 = 1988450 kJ/hr

Also,   Fuel required =

                               =

                               = 13.25 kg/hr

Hence,  Volumetric flow rate of hydrogen require  =

                       =

                      = 147.45

Thus, we can conclude that 147.45 hydrogen as a fuel will be burnt.

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explanation:

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