1. The problem statement, all variables and given/known data i need to calculate steam required to remove moisture content from the paper . low pressure steam: 2.7kg/cm2 i have calculated total water to be evaporated : 3500kg/hr machine speed is 335 mt/min gsm of paper:64gsm deckle width;310 cm 2. Relevant equations Q=ML Q is the total heat required to evaporate water M= mass flow rate of steam L=latent heat of vaporization 3. The attempt at a solution see i have calculated total water to be evaporated based on moisture content . but not getting how to calculate heat required since 1 kg of water required 2257kj/kg to convert it into steam . i m very confused what to do . . .