Characteristics Of Nozzles Teaching Equipment Hydrodynamics Experiment Apparatus

Description

AFF049 Characteristics Of Nozzles Teaching Equipment Hydrodynamics Experiment Apparatus

Learning Objectives / Experiments

– determining the critical pressure ratio

– demonstration of the “choking effect”

– determining flow velocity in the narrowest cross section

– measurement of the reaction or action force of the flowing fluid

– determine nozzle efficiency by thrust

Specification

[1] detect impact force or thrust at nozzle to determine the flow velocity and nozzle efficiency

[2] experiment layout A: measuring reaction force (thrust) of the fluid at the nozzle

[3] experiment layout B: measuring action force of the fluid at the baffle plate

[4] air intake adaptable according to the experiment layout

[5] distance between baffle plate and nozzle can be adjusted

[6] compressed air regulator for adjusting the pressure downstream of the nozzle

[7] needle valve on the flow meter for adjusting theback pressure

[8] measuring reaction or action force of the nozzle by deformation of the bending beam

[9] 5 nozzles with different contours (4 convergentdivergent, 1 convergent) and 1 baffle plate

[10] instruments: manometer and digital temperature display upstream and downstream of the nozzle, as

well as rotameter

Technical Data

Air consumption of the experimental unit

– compressed air: max. 10bar

– air consumption: approx. 5g/s

5 nozzles, brass

– 4 convergent-divergent

– 1 convergent

– diameter, all nozzles: 2mm

– length, divergent nozzles: 3,6 to 15,8mm

Compressed air regulator

– control range: 0…8,6bar

Measuring ranges

– temperature: 0…100°C

– pressure: 2x 0…10bar

– mass flow: 0,7…8,3g/s

– force: 0…2N

Dimensions and Weight

LxWxH: 750x450x810mm

Weight: approx. 27kg

Connections

230V, 50/60Hz, 1 phase or 120V, 60Hz/CSA, 1 phase

Compressed air max. 10bar, 250NL/min