Kotayk HPP Refurbishment
Although the Kotayk HPP powerhouse was operating without major mechanical or operational issues, our company was asked to evaluate different methods for enhancing performance. We recommended and implemented a capital overhaul of the nine pumps, which increased production by approximately 8%, assuming a constant water flow.
The refurbishment, as we anticipated, achieved a payback period of around two years, making it a financially successful investment. The work was completed by the end of 2013, before the resumption of the irrigation season, with very successful results.
Yerevan Lake HPP Trash Rack Reconfiguration
Our company was also engaged to evaluate and propose solutions for the Trash Rack issues at the Yerevan Lake dam. After identifying the significant production losses caused by the existing setup, we recommended a complete reconfiguration of the Trash Rack with automated cleaning capabilities.
We successfully addressed three major issues:
The existing Trash Rack caused pressure losses, reducing capacity by about 7%. Our solution restored full capacity and eliminated this issue.
- Manual Cleaning Disruptions
We introduced an automated system that eliminated the need for manual cleaning and the associated production losses, improving operational efficiency.
By implementing our solution, we mitigated the risks associated with trash buildup, allowing full-capacity generation without fear of system failure.
The new Trash Rack increased production by 10-15%, with all other conditions remaining constant.
Our proposed solution successfully achieved a payback period of 2-3 years, with the detailed
study and implementation completed as planned. The new system was fully operational by the 2013 season, with results exceeding expectations.
