Boiling Heat Transfer Training System
(TD-007)

1 Condenser water inlet/outlet 2 Heater 3 Condenser flow sensor 4 Condenser water inlet/ outlet temperature sensor 5 Pressure sensor 6 Vacuum valve (v3) 7 Condenser coil 8 Tank 9 Level switch 10 Drain valve (v2) 11 Vacuum pump

  • Demonstration Evaporation process
  • Investigation different forms of evaporation (nucleate and film boiling)
  • determination of heat transfer coefficient
  • investigation of the effect of temperature and pressure on the evaporation process
  • Main tank
    • Transparent tank
    • Volume = 14 liters
    • Filled volume = 3 liters
  • Electric Heater
    • Power= 1 Kw
    • Surface area = 0.001 m²
    • Equipped with power control allow the user to adjust power value continuously by a potentiometer on the control panel
  • Cooling system
    • Copper piping
    • Stainless steel coil: Diameter = 80mm, number of turns= 7 turns
    • Needle valve for precise control
    • Easy quick fitting for water inlet and outlet
  • Magnetic flow sensor
    • Measuring range 0….25 L/min
    • Output signal: 4….20 mA
  • Temperature sensor
    • 1 PT 100 RTD x measuring range -5 …105 degrees C
    • 3 PT 100 RTD x measuring range 0 …130 degrees C
    • 1 K-Type thermocouple x measuring range 0 … 350 degrees C
  • Pressure sensor
    • Measuring value 0 … 10 bars
    • Output signal: 0 … 10 V
  • Boiling Heat Transfer Training System (TD - 007)
  • Hard copy user manual
  • BEDO Software
  • Laboratory PC

Boiling Heat Transfer system trainer tends to demonstrate boiling and evaporation processes. It allows students to understand different forms of evaporation (nucleate and film boiling) and calculate heat transfer coefficients.

                                     
  • Boiling Heat Transfer Training System is an educational unit for the investigation of evaporation processes.
  • The trainer is designed to illustrate different boiling and evaporation processes and the effect of pressure and temperature on these processes.
  • The trainer consists of a main tank, condenser coil, heater, vacuum pump, valves, different sensors, digital displays and switches
  • The processes take place in a transparent tank which allows the evaporation to be observed.
  • The cooling water of the condenser coil comes from tap water with flexible hose connection to supply and drain.
  • The trainer is supplied with a needle valve to control the flow rate of the condenser water cycle
  • The heater is operated only when the limit switch detects the freon covered the whole surface area of the heater to avoid heater damage
  • The vacuum pump decreases pressure in the tank so freon R141b boils at temperature less than 32 c which helps trainees to test freon boiling at different temperature.
  • The sensors record the flow rate of the cooling water, the inlet/outlet condenser freon temperature, the vapour and liquid temperature at all relevant points and allow analysis of the heat transfer process
  • The digital displays provide an accurate reading of temperatures and pressures that are measured by highly sensitive sensors.
  • The trainer provides calculation of energy balances and key figures for heat transfer.
  • The trainer is provided with two schematic diagrams to demonstrate the system operation.
  • The trainer is provided with software to demonstrate the measured Values and draw experimental curves related to specific experiment.
  • The control unit includes ON/OFF main power switch and emergency switch
  • The control unit provides a mode selection switch Manual/Software and features a power control on the heater