Home

In regenerative air preheaters, the heat is transferred

A. From a metal wall from one medium to another

B. From heating an intermediate material and then heating the air from this material

C. By direct mixing

D. Heat is transferred by bleeding some gas from furnace

Related Questions

  1. The velocity of whirl at outlet for an axial discharge turbine is
  2. In a 50% reaction turbine stage, tangential component of absolute velocity at rotor inlet is 537 m/s…
  3. Fire tube boilers are limited to a maximum working pressure of
  4. The stage efficiency (ηS) is given by (where ηB = Blading efficiency, and ηN = Nozzle…
  5. Which of the following is steam dial?
  6. A supercritical boiler is one that operates above the pressure and temperature of following values
  7. When the nozzle operates with the maximum mass flow, the nozzle is said to be
  8. The critical pressure at which latent heat of vaporisation is zero is
  9. Locomotive boiler is of the following type
  10. Gusset stays in a boiler are provided to
  11. In a boiler, the heat is lost
  12. Which of the following statement is wrong?
  13. The bituminous coal is no caking if its carbon content is
  14. The effect of friction on the flow of steam through a nozzle is to
  15. The fire tubes in a Scotch marine boiler are
  16. Pick up wrong statement about desired properties of a good fuel
  17. De-Laval turbine is a
  18. The diagram efficiency is the ratio of
  19. The critical pressure ratio for initially superheated steam is __________ as compared to initially dry…
  20. The ratio of heat utilised to produce steam and the heat liberated in furnace is known as
  21. The diameter of tubes for natural circulation boiler as compared to controlled circulation boilers is
  22. The overall efficiency of thermal power plant is
  23. The latent heat of steam with increase of pressure
  24. The function of a crosshead is to guide motion of the _________ and to prevent it from bending.
  25. In forced circulation type boiler
  26. The blade friction in the impulse turbine reduces the velocity of steam by __________ while it passes…
  27. Which of the following boiler is best suited to meet the fluctuating demand of steam?
  28. When steam after doing work in the cylinder passes into a condenser, the engine is said to be a
  29. Which of the following is a fire tube boiler?
  30. Sulphur in coal results in

Please do not use chat terms. Example: avoid using "grt" instead of "great".