In aqua ammonia and Lithium bromide water absorption refrigeration systems, the refrigerants are respectively

  • AWater and water
  • BWater and lithium bromide
  • CAmmonia and lithium bromide
  • DAmmonia and water
Correct Answer : (D)

Ammonia and water

Hints :

Nusselt number (NN) is given by


In case of sensible heating of air, the coil efficiency is given by (where B.P.F. = Bypass factor)

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