centrifugal pump input power formula|centrifugal pump power calculator : services Note : 1000 kg/m3 = 1 kg/dm3 Click Here Related Article: Pump Vapour pressure calculation | Water Vapour Pressure Table at Different temperatures Classification of pumps | Types of pumps and their working principles Unit Conversion Factors and Tables for … See more Find your decanter centrifuge easily amongst the 200 products from the leading brands (Flottweg, Andritz, Alfa Laval, .) on DirectIndustry, the industry specialist for your professional .
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The operating principle of a decanter centrifuge is based on separation via buoyancy. Naturally, a component with a higher density would fall to the bottom of a mixture, while the . See more
Centrifugal pumps are widely used in various industries for transporting fluids by converting mechanical energy into hydraulic energy. Understanding the input power required for centrifugal pumps is crucial in determining their efficiency and performance. The input power for a centrifugal pump can be calculated using the formula:
The work performed by the pump is equal to the weight of liquid pumped in Unit time multiplied by total Head in meters. However the pump capacity in M3/hr and liquid specific gravity are used rather than weight of liquid pumped for work done by the pump. The input power “P” of a pump is the mechanical power
\[ P_{in} = \rho g Q H \left( \frac{1}{\eta} \right) \]
Where:
- \( P_{in} \) = Input power (W)
- \( \rho \) = Density of the fluid (kg/m³)
- \( g \) = Acceleration due to gravity (m/s²)
- \( Q \) = Flow rate (m³/s)
- \( H \) = Total head (m)
- \( \eta \) = Overall efficiency of the pump
The specific speed “Nq” is a dimensionless parameter derived from a dimensional analysis that allows for the comparison of impellers of various pump sizes, even when operating under similar flow rate conditions. The specific speed is calculated using the formula:
\[ Nq = \frac{N \sqrt{Q}}{H^{3/4}} \]
Where:
- \( N \) = Pump speed (rpm)
- \( Q \) = Flow rate (m³/s)
- \( H \) = Total head (m)
Centrifugal pumps come in various sizes and configurations, each designed for specific applications and operating conditions. Selecting the right centrifugal pump involves considering factors such as flow rate, total head, efficiency, and specific speed. Using online calculators and formulas can help in determining the power requirements and selecting the most suitable pump for a given application.
The specific speed “Nq” is a parameter derived from a dimensional analysis which allows a comparison of impellers of various pump sizes even when their operating similar Q
2.2 White box model: Multi-compartment model of decanter centrifuges. A schematic depiction of a counter-current decanter centrifuge is shown in Figure 1.The feed, with a specified solids concentration, particle size distribution and volumetric flow rate, enters the decanter centrifuge through an inlet pipe.
centrifugal pump input power formula|centrifugal pump power calculator