Carbon heat challenge

Problem statement: Heat is a critical input to our brewing and distilling processes, with at least 80% of the total energy requirement associated with brewing and distilling being heat-related. There are both batch and continuous processes primarily utilising steam for the heat transfer medium. The processes require heat (steam) at a range 120oC-200oC and generates waste heat in the form of hot water/steam condensate at 30oC-90oC and at 150oC-160oC for flue gas. We have diverse global facilities both in industrialised zones and small rural locations.

Challenge: To significantly reduce the carbon footprint associated with Diageo’s industrial heat requirements through generation and/or reuse processes, while ensuring continuity of heat supply – 24 hours a day, 7 days a week –  with no maintenance interruptions.

Potential solutions could include but are not limited to:

  • Waste heat recovery & reuse (including heat pumps)
  • Hydrogen heat production
  • Solar thermal heat generation
  • Thermal energy storage and distribution
  • Low-carbon natural gas heat generation
  • Control & Instrumentation of heat balancing/energy management software
  • Geographically-specific solutions
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