SL352 Educational Equipment Technical Teaching Equipment Free and Forced Convection Unit

• 1. Description

  The heat transport is substance-bound. The heat transport is substance-bound. In the convection process, the whole fluid is moving. So-called bulks of fluid move (and thus transfer heat) from warm zones into cold zones The different temperatures lead to density differences in the fluid so that a flow develops. In the case of free convection, the density differences result in a rather slow flow of the fluid with a more intensive heat transfer. In the case of forced convection, The flow is generated by a fan or pump. In this case, the heat transfer to fluid particles is lower, but more heat is transported than with free convection due to the much larger mass flow.

  The core element of the SL 352 experimental unit is a vertical duct into which a heating element is inserted. Three flows elements with different surfaces are available: a flat plate, a tube bundle Or fins. For experiments on forced convection, an additional fan has to be activated.

  Sensors record the flow velocity of the air, the heating power and the temperatures at all relevant points.

  The well-structured instructional material sets out the fundamentals and provides a step-by-step guide through the experiments.

  Learning Objectives / Experiments

  - free and forced convection

  - heat transfer at different surfaces:

  Flat plate

  * pipe bundle

  * fins

  - temperature distribution in the heat exchanger

  - determination of the Reynolds and Nusselt numbers

  - calculation of heat transfer coefficient for free and

  Forced convection

  2.Technical details

  Specification

  [1] heat transfer in the air duct by free and forced convection

  [2] air duct with axial fan

  [3] 3 heating elements with different surfaces: flat plate, tube bundle or fins

  [4] sensors measure temperatures (upstream and downstream of the heating element and inside the heating element), flow velocity of the air and heating power

  Technical Data

  Air duct

  - flow cross-section: 120x120mm

  - height: 1m

  Axial fan

  - max. volumetric flow rate: 170m3/h

  - max. pressure difference: 54Pa

  - power consumption: 6,5W

  - nominal speed: 2900min-1

  Heating elements

  - temperature limitation: max. 150°C

  - max. heating power: 200W

  - surface of flat plate: 140cm2

  - surface of tube bundle: 980cm2

  - surface of fins: 1400cm2

  Measuring ranges

  - flow velocity: 0...10m/s

  - temperature: 2x 0...100°C, 1x 0...200°C

  - heating power: 0...375W

  Scope of Delivery

  1 experimental unit

  3 heating elements

  1 display and control unit

  1 sSTof instructional material

Product Details and Warranty

We supply suitable spare pats according to experiment requirement, our products take aluminum structure, A4 paper dimension aluminum and plastic hanging box structure.

We supply 3 years warranty time.

Packaging & Delivery

Package details: plastic film+ plastic foam + plywood box with pallet, and for equipment dimension less than 1CBM, we supply plastic film+ plastic foam+ fine carton.

Arrange delivery within 45 days upon receipt of payment.

Please see below photo for detailed package.

Training Room Photo

Company Information

We supply professional educational training equipment and technical teaching equipment, which has been widely applied in Engineering Universities, Polytechnics, Technical Institute, Vocational Schools as well as Industry workforce Development Programs and Training Center. Our products allow students to learn and experiment through valuable hands-on experience, and the technology covered by our training equipment provides knowledge, experiments and didactic skills development that are of critical importance to today´s and tomorrow´s careers.

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Service

We supply supply7*24 hours service, customer design service, OEM service, buyer label service. With professional engineers team and sales team, we assure you good product quality.

Certificate
Our products takes ISO9001 product management system.