The FM40 is a radial flow machine, which produces the necessary pressure to move gas by the centrifugal force built up inside the fan casing. The design of the fan blade has a primary influence on performance.
The FM41 produces gas flow by virtue of the momentum changes imparted across the rotary blades, parallel to the axis of rotation. Such fans are more suitable for higher flows at lower delivery pressures than their centrifugal counterparts.
The FM42 demonstrates, on a small scale, the use of a multi-stage centrifugal compressor, as used in industry for high pressure deliveries of gas flows or suction duties.
The Armfield IFD7 Interface Unit is an essential accessory to the Armfield FM Series CAPTURE range of engineering education teaching equipment.
The centrifugal pump is the machine most commonly used to move liquids from one place to another. As such it is a particularly instructive unit that introduces students to the whole subject of rotodynamic fluid machines.
Centrifugal pumps are often used together to enhance either the flow rate or the delivery pressure beyond that available from the single pump. The FM51 is designed to demonstrate the operational advantages of parallel or series operation.
The gear pump is the most widely used of the positive action rotary pumps. The FM52 demonstrates a gear pump in operation, and enables the measurement of constant-speed pump performance and outlet pressure against a range of variables.
The FM53 demonstrates a plunger pump, as used in industry to pump small quanities of liquid at high pressures. Electronic sensors measure the instantaneous cylinder pressure within the pump, the pump displacement and the cumulative flow.
The C3MkII has been designed to demonstrate the operating characteristics (headflow curves and efficiency) of a series of different types of pumps, each having a broadly similar input power.
The NA4-10 is designed to enable students to investigate a simple model hull form for resonance phenomena, clearly demonstrating many of the principal phenomena associated with ship resonant vibration.
The NA8-10 is designed for the study of ship hydrostatics and stability. A comprehensive manual includes information for a course of practical study in ship hydrostatics, flooding and stability and describes a number of experiments.