Using industrial waste heat for urban heating networks in Zibo

The project enabled the rehabilitation and extension of the city’s heat networks in order to supply a heating area of some 15 million m2. The networks are supplied by a cogeneration power plant and waste heat from a petrochemical plant and coking plant in the city.The project also included the construction of recovery systems using absorption heat pumps and the demolition or shutdown of numerous coal-fired boilers previously in operation in the city.Finally, existing heat networks were rehabilitated to improve their energy efficiency by replacing steam with hot water as a heat transfer fluid and through network automation.