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SCHMIDT-HARTMANN BOILER

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  Type : high pressure ,water tube, forced circulation steam boiler. Working principle : - its principle of working is “ two pressure can be used to effect and interchange of heat energy”. Construction and working: - In the primary circuit, the steam at 100 bar is produced from distilled water. - This is generated steam is passed through a submerged heating coil, which is located in an evaporator drum. -The high pressure steam in this cool possesses Sufficient thermal potential ,due to which, a steam at 60 bar with the heat transfer rate of 10,000 KJ/ metre square-hr degree Celsius  is generated in the evaporation drum.  -The steam produce in the evaporator drum from impure water is further passed through the superheater and then supplied to the prime mover. -The high-pressure condensate formed in the submerged heating coil is circulated through a low pressure feed heater on its way to raise the feed water temperature to its saturation temperature. Therefore, only latent...
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VELOX BOILER

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  Type :- High pressure, water tube, forced circulation steam boiler.  Working principle : It's principle of working is “when the gas velocity exceed sonic velocity, the heat is transferred from the gas at a much higher rate than rates achieved with sub-sonic flow. The advantage of this theory is taken to effect the large heat transfer from a smaller surface area in this boiler ”. Construction & working : - VELOX boiler makes use of pressurised combustion . - The gas turbine drives the axial flow compressor, which raises the incoming air from atmosphere pressure to furnace pressure.  - The combustion gases after heating the water and steam, flow through the gas turbine to the atmosphere . - The feed water after passing through the economiser is pumped by a water circulating pump to the tube evaporating section.  - Steam separated in steam separating section flow through the superheater and form superheater its move to prime mover. Advantage of VELOX boiler ...
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