WebThe following model laws thus apply to two geometrically similar centrifugal pumps operating under physically similar conditions: Affinity laws Flow velocity in a cross … WebThe Affinity Laws for centrifugal pumps and fans are used to express the influence on volume capacity, head (pressure) and/or power consumption due to. change in wheel speed - revolutions per minute ( rpm ), and/or. …
Affinity Laws - Production Technology
WebThe pump affinity laws define the core physics of the block, which scales the pump performance by the ratio of the current to the reference values of the pump angular velocity and impeller diameter. By default, the flow and pressure gain are from port A to port B. Port C represents the pump casing, and port R represents the pump shaft. Web6 jun. 2024 · Law 1: Flow is proportional to shaft speed or impeller diameter. As shaft speed or impeller diameter changes, flow changed by the same proportional amount. In other … frederick winslow taylor quizlet
(PDF) Study of the Affinity Law of Energy and Cavitation ...
Web15 jul. 2013 · Affinity Laws – Modify the Pump Curve The performance of a centrifugal pump will vary with speed according to the formulae below (Fig 4). These calculations result in a set of curves called “Affinity Curves”, with imaginary lines (Affinity Lines) that pass through equivalent points on each speed curve. WebThe affinity law equation for power is: Where N 1 = Original speed, H 1 = Original head, N 2 = New speed, H 2 = New head. Rearranging we get: Using the equations above, a … Web17 mei 2024 · Apply it in the field: If your blower is moving 1000 CFM at 1100 RPM, and you need to decrease airflow by 10% to 900 CFM, Fan Law 1 says your RPM must decrease by 10% also. Let’s put that in the formula: RPM2 = RPM1 X (CFM2 ÷ CFM1) RPM2 = 1100 X ( 900 ÷ 1000) RPM2 = 990 This is your new RPM. frederick winterbotham