Calculate: (i) Boiler efficiency. (ii) Percentage of heat loss in flue gas. (iii) Percentage of heat loss to ash and unburnt coal. (iv) Percentage of heat loss unaccounted for.

Write the Advantages of supercritical boiler and disadvantages of supercritical boiler.

Hot air at 40 ° C and RH 65% is heated using a heat exchanger to reach 90 ° C. Using a psychrometric chart, determine:a) the amount of heat added per 2 m³ of initial air = ... (kJ) b) condensation temperature = ... (° C)

A geothermal resource/aquifer has been tested and confirmed to continuously produce saturated liquid water at 230°C. It is desired to construct a 60 MW geothermal power plant, which will utilize this resource. Two designs are proposed: a) a single flash unit and b) a dual-flash unit. A nearby cooling pond may supply sufficient cooling water to keep the condenser of the plant at 40°C. For the two types of units under consideration calculate: a) The total amount of steam that needs to be produced. b) The total amount of water the wells must provide. c) If each well produces 60 kg/s of water, what is the number of wells that must be drilled?