ELECTRICAL ENERGY AUDITING AND ENHANCEMENT OF POWER SYSTEM AT BASBARI WATER TREATMENT PLANT, KATHMANDU
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I.O.E. Pulchowk Campus
Abstract
The water treatment plant (WTP) employs a variety of electrical machines and
utilities, making it an intensive energy consumption plant. In this study, an energy
audit was conducted on the Basbari WTP in Kathmandu, Nepal to identify the
hotspots that consume most of the energy in the plant and recommend solutions for
energy-efficient operation. A power quality analyzer was used to analyze the energy
consumption patterns of electrical parameters and data from the electricity authority.
The study found that transmission pumps and backwash/makeup pumps consume
77% and 6% of the energy, respectively. Efficient utilization of pump motors could
result in an annual cost savings of NRS 109,681.12 from transmission pumps,
backwash pumps, and make pumps. The payback period for light replacement and
installation of a capacitor bank is 2.16 years and 1.95 years, respectively.
Description
The history of piped water supply systems in Nepal dates back to 1895 A.D., when Bir
Sumsher commissioned the first Bir Dhara system in Kathmandu, which was a type of
water distribution network.