25_mar_presentation.pptx

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    COMBINED SEWER OVERFLOW POWER GENERATION: WEEKLY PROGRESS REPORT

    ARATHI REDDY BALAPURAM PROJECT MANAGER

    OMER KHAN COMMUNICATION MANAGER​

    RANGA SAI KURELLA​ RESOURCE INVESTIGATOR

    SOAK PITS

    Artificial recharge is a process by which excess surface-water is directed into the ground – either by spreading on the surface or by using recharge wells, or by altering natural conditions to increase infiltration.

    The chemical does not leave any harm full substances to the water that is passing through it and the water is safe to reach the ground water table.

    LAYERS OF SOAK PIT

    HBG metal of ½ or ¼ part bricks

    Crushed sand layer 0.15m

    Coal powder layer of 0.024m

    River sand layer 0.156m

    Baby chips layer 0.088m

    WORKING MECHANISM

    As waste-water percolates through the soil from the soak pit, small particles are filtered out by the soil matrix and organic matter is digested by micro-organism.

    With the usage of Sodium polyacrylate the absorbent capacity is increased by 300 times, thereby it creates more storage capacity.

    Soak pit are best suited to soils with good absorptive properties; clay, hard packed or rocky soils are not appropriate

    MAINTAINENCE

    The effluent should be clarified or filtered well to prevent excessive build up of solids.

    The Soak Pit should be kept away from high-traffic areas.

    Particles and biomass need to be cleaned or moved to prevent the clogging.

    A removable lid may be used to seal the pit for future access.

    RESULTS

    the absorption capacity of the soak pit increased with the increase in the percentage of the sodium poly acrylate.

    1.25% of sodium polyacrylate by volume of the soak pit can be treated as optimum percentage.

    SOLUTION FOR OVERFLOW

    SIMULATION RESULTS

    SIMULATION RESULTS

    COMPONENTS AND COST

    CASE STUDY Number of buildings Number of solar panels Number of inverters Number of batteries Number of optimisers Estimated output(MWh/year) Total cost
    FroniusSoftware 5 1224 21 13 0 477.357(without losses estimation) 714057
    SolarEdge Software 6 1862 4 0 939 498.36 762170

    REVIEW OF CASE STUDIES

    BESS: SINGLE LINE DIAGRAM

    The system consists of the following major items:

    1. A dedicated Battery Energy Storage System building.

    2. Two strings of batteries, complete with manual disconnect switches and fuse protection.

    3. Battery monitoring control cabinet providing peak shaving and state-of-charge control.

    4. Personal computer interface to the battery monitor for data display, battery maintenance and data acquisition.

    5. A power conditioning system (PCS), which provides bidirectional power conversion between the ac and dc systems. 6. Station control for sequencing and control of the power converters.

    7. Remote operator’s panel located in the plant control room. 8. Fused main BESS disconnect switch.

    9. Power factor correction capacitors and harmonic filter to meet IEEE 519. [l]

    10.Relay panel responsible for detecting a utility outage and supervising the operation of the main plant service breaker

    Battery Monitor Control

    The battery monitoring control performs five major

    Calculates the state of charge of the battery.

    Provides battery charging and discharging control.

    Monitors the health and status of the battery,

    Records battery operation for future optimization.

    Detects ground faults.

    The Battery Monitoring function is implemented in a PLC, working with the Operator Interface Computer. The computer consists of an industry-standard PC running a graphical interface program for data storage and display.

    SECOND LIFE BATTERY COST:

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