HM 230 Flow Of Compressible Fluids - GUNT Hamburg

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• Home
• Products
  • Products
  • Engineering mechanics and engineering design
    • Engineering mechanics and engineering design
    • Statics
    • Strength of materials
    • Dynamics
    • Machine dynamics
    • Engineering design
    • Materials testing
  • Mechatronics
    • Mechatronics
    • Engineering drawing – Technical communication
    • Cutaway models
    • Dimensional metrology
    • Fasteners and machine parts
    • Manufacturing engineering
    • Assembly projects
    • Maintenance
    • Machinery diagnosis
    • Automation and process control engineering
  • Thermal engineering
    • Thermal engineering
    • Fundamentals of thermodynamics
    • Heat exchangers
    • Thermal fluid energy machines
    • Internal combustion engines
  • Refrigeration
    • Refrigeration
    • Principles of cold production
    • Fundamentals of refrigeration
    • Thermodynamics of the refrigeration cycle
    • Components of refrigeration
    • Heat pumps and ice store
    • Solar cooling
    • Electrical engineering in refrigeration and air conditioning technology
    • Assembly, fault finding, maintenance
  • HVAC
    • HVAC
    • Heating technics
    • Air conditioning technology
    • Ventilation
    • Renewable energies in building services engineering
    • Sanitary systems
  • Fluid mechanics
    • Fluid mechanics
    • Physical principles
    • Steady flow
    • Transient flow
    • Flow around bodies
    • Components in piping systems and plant design
  • Fluid machinery
    • Fluid machinery
    • Driving machines
    • Driven machines
    • Turbomachines
    • Positive displacement machines
    • Thermal fluid energy machines
    • Hydraulic fluid energy machines
  • Hydraulics for civil engineering
    • Hydraulics for civil engineering
    • Fundamentals of fluid mechanics
    • Hydraulic engineering
  • Process Engineering
    • Process Engineering
    • Mechanical process engineering
    • Thermal process engineering
    • Chemical process engineering
    • Biological process engineering
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    • Production of green H2 from sun and wind:
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  • Equipment series
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    • - Solar Line: solar energy
    • - Solar thermal energy
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    • Sie suchen ein Thema in diesem Produktbereich?

      Ergebnisse

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  • Flumes
    • 
      • GUNT experimental flumes and their accessories open up a wide range of experiments and demonstrations on the topics of open-channel flow, running waters, hydraulic engineering and coastal protection.

    • Sie suchen ein Thema in diesem Produktbereich?

      Ergebnisse

      Keinen Suchbegriff ausgewählt.

  • Download
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      • You may download catalogues and brochures as well as our extensive "knowledge material" as PDF documents.

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    • Sie suchen ein Thema in diesem Produktbereich?

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    • - MEC Line: engineering mechanics
    • - Solar Line: solar energy
    • - Solar thermal energy
    • - Photovoltaics
    • - Fluid Line: fluid mechanics
    • - WL 110 series: heat exchangers
    • - Thermoline: heat transfer

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    • - Heat transfer
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  • Flumes
    • 
      • GUNT experimental flumes and their accessories open up a wide range of experiments and demonstrations on the topics of open-channel flow, running waters, hydraulic engineering and coastal protection.

    • Sie suchen ein Thema in diesem Produktbereich?

      Ergebnisse

      Keinen Suchbegriff ausgewählt.

  • PILOT & TRAINING PLANTS
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      • GUNT has been known for decades as the leading manufacturer of educational systems, popular in engineering departments of universities and colleges. Another field of GUNT’s activities are industrial training plants to cater for the specific training need

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      Ergebnisse

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  • Technical Support
    • If you need assistance with your GUNT equipment, you can contact us anytime. The GUNT team will be glad to support you.
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• Contact

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HM 230 Flow of compressible fluids

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Features

• investigation of flow in compressible fluids
• varied range of experiments for studying subsonic and sonic flow
• de Laval nozzle generates velocities up to Ma 1

Learning objectives/experiments

• pressure losses in pipes and pipe elbows
• flow in convergent/divergent nozzles
• determine the speed of sound in air
• compare calculation methods for incompressible and compressible flow
• use complete continuity equation
• determine mass flow rate using nozzle and volumetric flow rate using orifice
• record calibration curve for orifice
• record fan characteristic curve at different mass flow rates and speeds

Scope of delivery

1 experimental unit 1 set of measuring objects 1 set of tools 1 set of instructional material

Compressible fluids change their density due to pressure change in the flow. Flows with velocities less than Ma 0,3 are regarded as incompressible and the change in density is negligible. At higher velocities, the density has to be included in calculations. These conditions must be taken into consideration when designing e.g. turbo compressors, jets and fast planes.

The HM 230 experimental unit is used to investigate air flow in various ranges of velocity.

A radial fan with infinitely variable speed control draws in air from the environment. At the intake the air flow is accelerated in a measuring nozzle. Further down the measuring section the air flows through interchangeable measuring objects. Drawing in the air and the arrangement of the measuring objects on the intake side of the fan minimise turbulence when flowing into the measuring objects. All measuring objects are made of transparent material and provide excellent insight into the inner structure.

Pressure losses are studied in a pipe elbow, various pipe sections and a nozzle with sudden enlargement. The nozzle with gradual enlargement (de Laval nozzle) provides an introduction to the topic of sonic flow. The volumetric flow rate is measured in an orifice using a differential pressure manometer. The orifice is fitted with four interchangeable orifice disks for different measurement ranges. The fan’s characteristic curve can also be recorded by using a throttle valve.

The measured values for volumetric flow rate, pressure and speed are displayed digitally.

Specification

1. investigate flow of compressible fluids
2. subsonic and sonic air flow
3. variable speed on the radial fan for adjusting the mass flow rate
4. minimised turbulence by drawing in air and optimum arrangement of the measuring objects
5. transparent measuring objects with connectors for pressure measurement provide insight into the internal structure
6. measuring nozzle for determining the mass flow rate
7. pressure losses in subsonic flow in pipe elbows and various pipe sections
8. pressure curve at subsonic and sonic nozzle flow
9. orifice for determining volumetric flow rate by differential pressure measurement
10. record fan characteristic curve using a throttle valve
11. digital displays for pressures, velocity and speed

Technical data

Radial fan

• max. speed: 31000min-1
• max. volumetric flow rate: 226m3/h
• max. head: 318mbar
• max. power consumption: 1,8kW

Measuring objects

• pipe section: 1m
  • Ø 16, 24, 34mm
• 90° pipe elbow
• 2 nozzles, inner diameter: 12…34mm
  • with sudden enlargement
  • with gradual enlargement (de Laval nozzle)
• orifice with orifice disks
  • Ø 12, 19, 25, 32mm
• throttle valve: Ø 34mm

Measuring ranges

• speed: 0…99999min-1
• pressure:
  • 1x 0…25mbar
  • 1x 0…600mbar
  • 1x 0…1000mbar
• velocity: 0…65m/s

230V, 50Hz, 1 phase 120V, 60Hz, 1 phase, 230V, 60Hz, 1 phase UL/CSA optional

Dimensions and weight

LxWxH: 1750x600x390mm Weight: approx. 58kg

Knowledge Basic knowledge Steady flow of compressible fluids Pdf Product overview HM 230 Flow of compressible fluids Pdf Lab proposal Fluid mechanics, advanced lab proposal Pdf Fluid machinery lab proposal Pdf HM 230 < Previous product Next product >

Alternative products

HM 172

Supersonic wind tunnel with Schlieren optics

Schlieren optics for visualisation of Mach lines and shock waves on drag bodies; interchangeable walls in the measuring section produce velocities up to Mach 1,8

Learning objectives/experiments

• pressure curves in supersonic nozzles (Laval nozzle)
• pressure curves and losses in tunnel flows with Mach >1
• observe shock waves in drag bodies using Schlieren optics
• determining the Mach number from the angle of the shock waves
• comparison of theory and experiment

HM 220

Air flow experimental plant

Determining pressure loss and velocity profiles; different measuring objects

Learning objectives/experiments

• experiments in the field of steady, incompressible flows by means of different measuring objects:
  • calculation of the flow rate and the flow velocity
  • recording the different velocity profiles in both the free jet and the pipe cross-section
  • representation of the pressure loss in the system characteristic
  • representation of the pressure loss at different pipe elements

HM 225

Aerodynamics trainer

For experiments from the fields of flow around bodies and steady incompressible flow

Learning objectives/experiments

• together with appropriate accessories: experiments from the field of flow around bodies
  • velocity measurement of flows with Pitot tube
  • boundary layer analysis on a flat plate with flow along the plate
  • drag of bodies
  • demonstration of the Coanda effect ….

HM 240

Principles of air flow

Recording the fan characteristic

Learning objectives/experiments

• recording a fan characteristic

• in conjunction with the power meter HM 240.02
  • determining the fan efficiency ….

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