AFBS3531.2 MULTI HEAT TRANSFER TRAINER UNIT

Description

AFBS3531.2 MULTI HEAT TRANSFER TRAINER UNIT

The equipment should be a compact benchtop device with basic control surface and below each heat transfer module should be connected to the main system individually as requirement.

1. Linear heat conduction module
2. Radial heat conduction module
3. Convection and radiation heat transfer module
4. Free and forced convection heat transfer module
5. Unsteady state heat transfer module

Should be a compact benchtop package that is ideal for field, factory, or academic use

Each heat transfer module should be individually connected to the basic electronic control surface

Main Service module

Should be comprised with controlled cold water control system (pressure regulator and water control valve), flowmeter, computer interface and all necessary instrumentation

To control the cold-water flow rate, temperature of the heater and air velocity induced by the centrifugal blower.

Flowmeter Parameters (Minimum)

Operating range : 1 -10 L/min

Resolution : 0.2 L/min

Operating temperature : 0-100°C

Thermocouple connection : 10 nos minimum

Operating range: 0-100°C

Resolution : 0.2°C or better

Water supply : Vendor to specify

Linear heat conduction module

 

To introduce the principles of linear heat conduction, and to enable the conductivity of various solid conductors and insulators to be measured.

Should comprise a PID controlled heating section and cooling section, and four intermediate section conductor samples and two insulator samples

After the assembly, the heating section, cooling section and one of the intermediate sections are fitted with thermocouples should evenly spread along the length of the assembled conduction path.

All sections should be thermally insulated to minimize errors due to heat loss

Variable heater power : 0 -50 W (Minimum)

Variable water flow rate : 0 1.0 l/min (Minimum)

Heating and cooling sections : 25mm diameter is recommended

Radial heat conduction module

 

To introduce the principles of radial heat conduction

Should comprise of a brass disk which with a PID controlled heating section heated at the centre and a cooling water tube attached to the periphery to create a radial temperature difference with corresponding radial flow of heat by conduction

Conduction disk diameter : 80 -130mm

Conduction disk thickness : 2 4 mm

Heater power must be variable up to 100 Watts

Six K-type thermocouples positioned at different radii in the heated disk to indicate the temperature gradient from the central heated core to the periphery of the disk.

Convection and radiation heat transfer module

 

To introduce the principles of combined convection (free and forced) with radiation from horizontal heated cylinder

Comprises a heated cylinder mounted in a vertical air duct, with a fan at the base of the duct, which can be used to provide a variable air flow over the cylinder

Heater rating : 8 – 100W at 24V DC recommended

Should have K-type thermocouples to measure the air temperature upstream and the surface temperature of the cylinder

Free and forced convection heat transfer module

 

To demonstrate the phenomena of free and forced convection

and to measure temperature profiles from three different heat

transfer surfaces

Comprises a vertical air duct, with a transparent front for visibility mounted on a fan at the base of the duct, three heat transfer surfaces, air flow, and temperature probes

Following three heat transfer surfaces should be supplied

Flat plate

Pinned extended surface

Finned extended surface

Technical data should be provided for each of the three heat transfer surfaces

Each surface should be fitted with its own heater (240W) and thermocouples, to enable easy interchange

K-type thermocouples should be included to measure the air temperature in the duct before and after the heater, as well as the surface temperature of the heat transfer surfaces

Heater should be voltage or PID controlled allowing for the temperature set-point to be achieved rapidly and maintained within 0.1°C

The air flow : should be measured by an air-velocity sensor, which is inserted inside the duct

Unsteady state heat transfer module

 

To allow exercises to be performed in unsteady state heat conduction, when simple solid shapes which are suddenly subjected to convection with a fluid at a constant temperature. water storing base heating power : 3.0 kW or higher

Adjustable thermostat, at the base of the water heater to allow the water to be heated to a predetermined temperature

Should be comprised of a set of seven solid shapes, manufactured in three simple shapes and two materials. Each sample has a permanently installed K-type thermocouple inside

Temperature reading resolution – 1°C or higher resolution

Circulating pump mounted alongside the water bath to draw water from the bath and returns it to the base of the vertical cylindrical flow duct

A Compatible computer (PC) should be supplied

Processor: 7th Gen. Intel Core i5 -7400 (6MB Cache) 3.0 GHz recommended

16GB DDR4 RAM recommended

1TB 5400 RPM SATA SSD recommended

OS: Windows 10 (64bit)

Keyboard /Mouse

Uninterruptible power supply (UPS) : 350 W or higher

Ports (recommended specs)

4 x USB 3.0

HDMI-out

DisplayPort 1.2

2 x Thunderbolt 3 (supports Type-C, USB3.1,DisplayPort,

PS)

Gigabit Ethernet, audio out

Display: 21.5 LED monitor is recommended / Mention if different

Available Laboratory power sockets – 230V AC, 50Hz

Required calibration manuals should be supplied

Required control and interfacing software should be supplied and installed

Assembly and Installation, Interface and Control Software,

Starting-up, Safety, Maintenance, Calibration should be supplied

A comprehensive instructional manual describing how to carry out practical teaching exercises in heat transfer is supplied