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 Products:  Thermodynamics, Heating and Sanitary Systems » Applied Thermodynamics » Air-to-Water Heat Exchangers » ET 300
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ET 300: Water-to-Air Heat Exchanger Trainer

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Water-to-Air Heat Exchanger Trainer

Water-to-Air Heat Exchanger Trainer Water-to-Air Heat Exchanger Trainer

Product Details


Technical Description
Quantitative investigations on a water -to-air heat exchanger can be performed using this trainer. The trainer consists of a closed hot water circuit with heater, tank, pump and flow meter. Air is forced through the heat exchanger using a radial fan. Water and airflow rate are adjustable. The flow rate of water is measured using an electromagnetic flow sensor and an orifice plate flow meter is used for the airflow measurement. Energy balances can be established by measuring inlet and outlet temperatures. A pressure transducer in the water circuit enables the pump characteristic to be recorded. The measured data can be processed and displayed on a PC using the data acquisition card and software supplied.

Learning Objectives / Experiments
- Temperature and flow rate measurement
- Determination of heat transfer rates of water and air
- Energy balances
- Determination of the efficiency and the loss
- Investigation of the pump characteristic

Features
* Clear experimental set-up on mobile test stand1
* Processing of measured data on a PC1
* Closed hot water circuit
Specification
[1] Transfer characteristics of a water-to-air heat exchanger
[2] l x w x h: 1520x750x1350mm, 200kg
[3] Water-to-air heat exchanger as cooler
[4] Electrical heater with thermostat, 2kW
[5] Radial fan 0.25kW, max. head 430Pa, max. flow rate 13m³/min
[6] Closed water circuit including 28L tank and circulating pump
[7] Water flow and airflow rates adjustable
[8] Electronic sensors with digital displays
[9] LabVIEW software under Windows NT/2000/XP
[10] 230V, ~50/60Hz

Technical Data
Pump
- 140W
- max. head: 4.3m
- max. flow rate: 3500L/h
Cooler
- material Cu/Al
- exchanger surface: 2.80m²
- capacity 2kW (100L/min flow rate, 70°C water temperature)

Measuring ranges
- temperature (with PT100): 0...100°C
- water flow rate (electromagnetic): 0...6m³/h
- delivery pressure water 0...4bar abs.
- airflow rate (with orifice plate and dp-sensor)
  0...10mbar

Dimensions and Weight
l x w x h : 1550 x 750 x 1350 mm
Weight : approx. 200 kg

Connections
230V, 50/60Hz, 1 phase

Scope of Delivery
1 heat exchanger
1 data acquisition card with software
1 instruction manual

Order Details
061.30000  ET 300  Water-to-Air Heat Exchanger Trainer
Alternative products
WL 312 -- Multipurpose Air Duct and Heat Transfer Unit
WL 315C -- Heat Exchanger Trainer

SELKA GmbH, Hamburg
Grindelallee 188, 20144 Hamburg / Germany
Tel.: + 49 (0) 40 343453 |  Fax: +49 (0) 40 63657075
E-Mail:
info@selkagmbh.com   |  Internet: http://www.selkagmbh.com

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