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CLIENTMIDTERMV2.pptxCombined Sewer Overflow Power Generation
ARATHI REDDY BALAPURAM PROJECT MANAGER
OMER KHAN COMMUNICATION MANAGER
RANGA SAI KURELLA RESOURCE INVESTIGATOR
Northumbria water- Combined Sewer Overflow Power Generation
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Northumbria water- Combined Sewer Overflow Power Generation
Team Roles and Responsibilities
Project Manager (PM): ARATHI REDDY
Plan and develop the project ideas,
lead the team ,
Monitor the project progress,
Evaluate the project Performance.
Communication Lead : OMER KHAN
Develop the communication plans,
Implementing the work strategies,
Barrier between the client and team.
Resource Investigator : RANGA SAI
Exploring & Reporting Back on ideas,
Develop the outside sources,
Implementing the new sources.
Northumbria water- Combined Sewer Overflow Power Generation
Aim of the Project
Northumbria water- Combined Sewer Overflow Power Generation
Explanation of Combined Sewer Overflow & Power Generation and key deliverables.
Project deliverables
1. Determining a range of power requirements for the environmental remediation solutions that could be implemented at each CSO.
2. Reviewing methods of electrical power generation at a CSO location: light, kinetic movement of sewerage etc.
3. Reviewing electrical power storage solutions.
4. Determining system solutions that are: robust in CSO operation conditions, reliable and cost effective.
Northumbria water- Combined Sewer Overflow Power Generation
Northumbria water- Combined Sewer Overflow Power Generation
Northumbria sewage network
Determining power sources
From the sewage flow network we should arrange power generation sources.
This source can arrange at junction points of the flow network point.
Arrange mini bio gas plants for cost effective reason.
Northumbria water- Combined Sewer Overflow Power Generation
We can generate the power from this source to maintain subsidiary works.
Cost effective
Easy to install and easy to carry
Generation of sewage power
Northumbria water- Combined Sewer Overflow Power Generation
Hydro power and storage
Northumbria water- Combined Sewer Overflow Power Generation
Hydro power is a very efficient source of renewable energy. Hydropower systems are very efficient because of the density of water, the force of gravity and the technological advantages of today. These systems can covert up to 90% of the energy of water into electric energy, which is an astonishing number.
With this high efficiency the cost of hydroelectricity has dropped with evolving technologies, and is estimated to be about 40% less expensive than using fossil fuels.
Since hydro power is fueled by water, it has the advantage of being only used when needed, because it is easy to control the storage and allowable flow of water into a hydro power system.
Hydro power has an advantage over wind power because water is more dense than air, so collecting the mechanical energy of wind requires a greater force of wind to rotate the turbine than it would for water in a hydro power system.
unique technique solution
Implementation of soak pits near to over flow areas
1. It serves the function of a receiver and collects the wastewater from the primary treatment unit.
2. It allows the collected wastewater to get purified to some extent.
3. It thus allows non-harmful water to infiltrate into the ground.
4. It thereby helps in the recharge of groundwater.
Northumbria water- Combined Sewer Overflow Power Generation
Northumbria water- Combined Sewer Overflow Power Generation
Sodium polyacrylate:- Sodium polyacrylate, also known as sodium salt of polyacrylic acid with the chemical formula [−CH2−CH(CO2Na)-]n and is of broad application in consumer products. Sodium polyacrylate is an anionic polyelectrolyte with negatively charged carboxylic groups in the main chain. While sodium neutralized polyacrylic acids are the most common form used in industry, there are also other salts available including potassium, lithium and ammonium. This superabsorbent polymer has the ability to absorb an approximate quantity of 200 to 300 times its mass in water.
With advanced version
Karthik, D. “Effect of Sodium Poly Acrylate on Water Holding Capacity of Soak Pits.” International Journal for Research in Applied Science and Engineering Technology (2018): n. pag.
REMEDY FOR OVERFLOW
Northumbria water- Combined Sewer Overflow Power Generation
REQUIRED COMPONENTS
Vortex turbines can be very useful to eradicate backflow and can also help to generate power using kinetic energy with very simple modifications.
The generator can be made to run as motor to improve discharge rate of water during overflow conditions and bypass it to reservoir.
The squirrel cage induction machine with power electronics circuits can alter the working of the machine by controlling the speed.
During generator mode, power can be stored or redirected to the grid.
During motor mode, external input should be given to control the speed of the machine.
Northumbria water- Combined Sewer Overflow Power Generation
POWER CONSUMPTION
Power consumption of the sewage plant can be calculated by using the flow rate of sewage water (0.3 to 2.1 kWh/m^3 approx. depending on the plant size).
As the flow rate of the Howdon plant is unknown, the energy consumption is estimated by using population equivalent per year (20 to 50kWh per P.E).
According to NORTH TYNESIDE WATER CYCLE STUDY, the Howdon wastewater treatment plant serves 960,000 population equivalent.
For reference, the Wastewater treatment plant in Poland which is serving 276,099 population equivalent ( which is almost 4 times less capable to Howdon) consumes 13,307MWh-year which is equivalent to 48.2 kWh/P.E-y.
As the maximum power consumption of sewage plants is 50kWh/P.E,
Estimated power consumption of Howdon sewage plant = 960000*50 = 48000MWh-year = 129.6 MWh/day.
Northumbria water- Combined Sewer Overflow Power Generation
INSTALLATION AREA
More than 50% of energy requirement will be consumed by the anaerobic process.
As the power requirement is very high, the maximum area available on the site is being calculated for solar power generation.
The following area is considered for the installation of solar panels and estimation of power output is calculated.
Northumbria water- Combined Sewer Overflow Power Generation
SOLAR PANELS
Monocrystalline solar panels provide better efficiency and are mostly preferable for commercial usage.
Some of the best solar panels from 400 to 450kWp capacity for commercial usage are Longi HiMo LR4-72HBD 450w, SunPower Maxeon-3 400w, Canadian HiKu 450w.
The solar panels should be considered based on budget, peak rating, and efficiency.
For this project, SunPower Maxeon-3 400w with 22.6% efficiency is considered, and each panel costs around 305 GBP.
Some of the other solar panels with high ratings are shown in the table.
Case studies
Northumbria water- Combined Sewer Overflow Power Generation
| CASE STUDY | Number of buildings | Number of solar panels | Number of inverters | Number of batteries | Number of optimisers | Estimated output (MWh/year) | Total cost |
| Fronius Software | 5 | 1224 | 21 | 13 | - | 477.357 (without losses estimation) | 714057 |
| Fronius Software | 6 | 1624 | 31 | 16 | - | 643.260 (without losses estimation) | 872716 |
| SolarEdge Software | 6 | 1862 | 4 | - | 939 | 498.36 | 762170 |
As the Fronius software is not considering losses and has some flaws in the software, the SolarEdge software is reliable.
The total cost is expected to be more because installation and wiring costs are not considered in the simulation.
Northumbria water- Combined Sewer Overflow Power Generation
Simulation results
COST ESTIMATION
Northumbria water- Combined Sewer Overflow Power Generation
The cost estimation for solar panels, inverters, and power optimizers in GBP is listed below with references
