Pumping System Study

Overview
All pumps have a characteristic or performance curve that defines the relationship between flow rate and total head. These performance curves help evaluate pump efficiency, operating conditions, and overall system performance, ensuring the pump operates within its optimal range. At Limbaja Energy, we provide Pump Audit Services in Gujarat for industries across Gujarat and India. Our Pumping System Audit Services include pump efficiency assessments, performance analysis, and energy audits to identify inefficiencies, optimize system operation, reduce power consumption, and improve the reliability of industrial pumping systems.
Formulas
Pump hydraulic power and Pump Efficiency can be calculated by the formula:
- Hydraulic Power (kW) = (Flow(Q) * Total Head (Hd – HS) * ρ * g) / 1000
- Pump Efficiency (η) = Hydraulic Power / (Measured Input Power * Motor Efficiency)
Where:
- Q = Water Flow (m3/s)
- Hd = Discharges Head (m)
- Hs = Suction Head (m)
- ρ = Density (Kg/m3)
- g = Gravity (m2/s)
Scope of Work
Overview
- Type of Industry: Chemical, Iron & steel, Textile, Plywood, Pharmaceuticals Etc.
- Application: Cooling Tower Circulation Pump, Water Transfer pump, Chiller Primary & Secondary Pump, Submersible pump, Borewell pump etc.
- Type of Audit: Water pumping Audit
- Energy Conservation Measures: C Section Plant Cooling Circulation Pump: Replace Existing P 235 A Pump with New Energy Efficient Pump
Case Study
| SN | Description | Unit | Value |
|---|---|---|---|
| 1 | Existing Efficiency | % | 37.26 |
| 2 | Proposed efficiency of pump % | % | 82 |
| 3 | Proposed Head | Meter | 30 |
| 4 | Proposed Flow | m3/hr | 400 |
| 5 | Estimated power @ one pump | kW | 42.20 |
| 6 | Standard Motor and Pump Power | kW | 45 |
| 7 | Present norms of pump | kW/m3 | 0.187 |
| 8 | Suggested norms of pump | kW/m3 | 0.105 |
| 9 | Saving in norms | kW/m3 | 0.082 |
| 10 | Saving in kW | kW | 30.268 |
| 11 | Unit cost Rs | Rs./kWh | 6.0 |
| 12 | Daily Operation hour | Hour | 24.000 |
| 13 | Annual operation Day | Day | 330 |
| 14 | Annual Power Saving | kWh | 239723.5 |
| 15 | Saving in monetary terms | Rs. | 1438341.3 |
| 16 | Investment of new Energy Efficient pump | Rs | 290000 |
| 17 | Simple payback period | Month | 2.42 |

You Can Reduce the Carbon Footprint 215 tCo2 by Implementing above Energy Conservation Measures
Proposed New Pump Design
| SN | Description | Unit | Pump 235 A |
|---|---|---|---|
| 1 | Proposed efficiency of pump % | % | 82 |
| 2 | Proposed Head | Meter | 30 |
| 3 | Proposed Flow | m3/hr | 400 |
| 4 | Estimated power @ one pump | kW | 42.20 |
| 5 | Standard Motor and Pump Power | kW | 45 |
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