JUNE-JULY 2018 Nov-Dec 2017 - Copy - Page 49

CASE STUDY Due to the integration of a variable-frequency drive unit, the booster pump is now controlled as a function of demand so that the unit uses much less energy. consumption involved changes on the air control dampers. Moreover, the flow velocities inside the system were adapted via a modified fan control regime, resulting in substantially less vapour getting discharged. In the case of the booster pump, a variable-frequency drive unit now provides demand-based control and hence, energy savings. Thanks to these relatively minor improvement measures the system’s overall electric power consumption was cut by around 30 percent. Savings of the same magnitude were achieved at the level of the water consumption, and are additionally reflected in a reduced need for cleaning chemicals. An independently valid ]YY\[HڙXHYX\\\\H[]X[H\YY]ۈH\[H[[Y[H^\]\XKX\Y[[H[ ܈[ؚX]B][X][ۈو\[HXX[[]\]HوY[HX\[YYHY\[HڙX]^[]HKH[ B[Z^][ۈYX\\[Y[ˈ\[[ۈH]Z[X[]Hو][ۘ[܈Y[ۘ[ܘ[\H[X\Y]\][ۈو\œX\ٝ[YXY[H[\ݙ[Y[X^H\ܝ\X][ۜ܈XX[[˂ܚ\[\[\˙YYXX\[\˘BHДXX[ܛ\ ܛY\0XX[H][X[YX\\[\X]\]\K[ܚY[YXX[\\[\˜[\X\܈[\X[\X[[[\XH\[ˈ\H][ۜX\HXHXY\\ܝ\[Y\\[HܛX[YX\HZ\XYXY[H[\Z[XH[Y]X[]K