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Week 14: Material Balance (Importance (New processes at exploratory stage,…
Week 14: Material Balance
Importance
New processes at exploratory stage
Trial run to improve processes
Plant commissioning to check the processes
Production run to refine operation and serve as control instruments
Changes in processing to re-determine processing conditions
Basic and Units
Units used
Mass i.e. by weight (e.g. mass of dry solids or mass of components such as protein)
Concentration (e.g. w/w, w/v, molar concentration)
Basic for calculation
Batch system ~ Mass of raw material entering the process in a batch system
Continuous process ~ Mass of raw material per hour
Predominant constituent e.g. 100kg of flour entering is commonly used in material balance for bakery industry
Basic Principles: Materials In = Materials Out + Materials Stored
(EG) Raw material = Products + Waste products + Stored products + Losses
Process Categories
