Atomic Idea
Sensible heating of the charge accounts for only part of the energy required by a distillation system.
Reasoning
Mass × heat capacity × temperature rise describes warming on a stated basis. Vaporization, vessel heating, heat losses and auxiliary operations add requirements. In the handbook example, 334,720 kJ over one hour corresponds to about 93 kW before those additions; neither number sizes the complete installation.
Boundary
An approximate heat-up calculation can be useful for comparison when its boundary is explicit. Equipment sizing requires a validated complete duty and operating basis.
Evidence And Connections
Strickland — Batch Distillation — 06 Equipment Is a Heat, Flow, and Maintenance System
Distillation design is a constrained optimization
The linked Literature Notes contain printed and PDF locators, source limitations and the researcher’s interpretation.