Mg casting with a volume to surface ratio(casting modolus)of 0.1m is made by gravity casting. heat transfer coefficient at the metal mould interface is 1.9KJ/m^2 K s . the density and melting point of the Mg are 1700 kg/m^3 and 923K. assume ambient temperature to be 293K.
a)if the solidification time is 50s. the latent heat of fusion in KJ/mol is
b)in a spiral channel of 10mm dia and with an entrance flow velcity of 300mm/s , the fluidty of the melt in mm is
can anybody solve this.
Mg casting with a volume to surface ratio(casting modolus)of 0.1m is made by gravity casting. heat transfer coefficient at the metal mould interface is 1.9KJ/m^2 K s . the density and melting point of the Mg are 1700 kg/m^3 and 923K. assume ambient temperature to be 293K.
a)if the solidification time is 50s. the latent heat of fusion in KJ/mol is
b)in a spiral channel of 10mm dia and with an entrance flow velcity of 300mm/s , the fluidty of the melt in mm is