CASE STUDY

Waste Heat Recovery

Industry

Multiple effect evaporator

Background

Waste heat recovery from hot effluent in Multiple effect evaporator plan (MEE)

Highlights
  • Hot effluent with considerable quantity discharged to atmosphere at 80 Deg C
  • Condensate from 1st effect not recovered
Energy Conservation Measure
  • Recover heat from hot effluent and preheat boiler feed water
  • Recover condensate
Estimated savings $16,700 USD per annum
  • Boiler Capacity – 5TPH @ 10.5 barg
  • Fuel – Coal
  • Payback – 7 months.
BENEFITS OF WASTE HEAT RECOVERY IN RAISING UP FEED WATER TEMPERATURE
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