A short answer, followed by the source guide and related questions.
Common controls include sub-metering, leak tests, controlled washdown, condensate return, cooling-tower control and reuse of suitable low-contamination streams. Check hygiene, product quality, discharge permits and water-treatment requirements before reuse.
This answer is taken from Industrial Water Efficiency Assessment. Use the full guide for scope, assumptions and cited sources.
Use measured surface area, temperature and operating hours to calculate heat loss from boilers, kilns, heat exchangers, valves and pipework. Inzonex supplies removable modular insulation for equipment that requires maintenance access.
Do not add a calculated reduction to an emissions report until the reporting boundary, factor, implementation date and verification method have been approved.