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THE BOILER HOUSE SOLUTIONSERVICES

BW Energy Optimisation - 30750 Energyoptimisation

Ecosteam

®

Audisteam

®

Energy andenvironmental optimisation The ECOSTEAM

®

Solution

This solution is applicable to processes with 85 to 90% condensate return, and steam production above 15 t/h. The principle is to heat the combustion air up to a temperature of 80°C. This limit is imposed by the thermal NOx generating threshold. The efficiency increase is 6 to 8%. The investment can be recovered in less than 2 years*. Low-NOx burners 4/ Flue-gas economiser, plus water / combustion air exchanger. BABCOCK WANSON investment in R&D has enabled the development of a new burner head geometry which: • improve the distribution of the fuel within the flame reducing the production of NOx ; • reduce the excess of air increasing the efficiency of the boiler. To make: • fuel savings • reduced electrical consumption • low level of flue gas pollutants • reduced noise• reduction in operating costs 3/ Flue-gas economiser plus heat exchanger on the feed-water. This solution provides a boiler efficiency of up to 96%. Certain conditions are neces-sary in order to apply this process: the presence of a thermal de-aerator and a cold feed make-up source, and a low condensate return rate of less than 70 %. The investment can be recovered in less than 1 year* ; Babcock Wanson offers many optimi-sation solutions, particularly the Ecosteam® pack Audisteam® software ‚ suitable for the BWSand BWR series. Thanks to the new , BABCOCKWANSON can help to value the potential savings and highlight the best solutionsfor industrial. This solution, which is suited only to gas, provides an efficiency increase of 4 to 5 % depending on the temperature of the feed-water. The return on investment may beobtained in less than 1 year* ; This solution is applicable for NG / fuel-oil combined-fuel applications, or if greater energy recovery is required. In this case, the economiser has a larger exchange surface and can no longer be incorporated in the rear smoke box. The efficiency increase is 5 to 6 % ; Flue-gas economisers 1/ Flue-gas economiser, removable cartridge exchanger mounted in the rear smoke box of the boiler. 2/ Flue-gas economiser, casing-mounted on the flue-gas outlet. Electronic fan speed control * These value varies according to the size and annual operating time of the boiler • suppression of interference on the electrical network at start up, • significant reduction of noise level at low load, • reduced maintenance by replacing the fan pulleys and belts with a direct drive• reduced electrical power consumption:by reducing the fan speed by 20%, the air output is also reduced by 20%, but the electrical powerconsumption is reduced by 50%. Substantial reductions in operating and maintenance costs.