This unit enables to study heat exchanges by using a tube-intube exchanger, a shell-and-tube exchanger or a plate heat exchanger. The automated version includes a PID controller that controls flow rates automatically via two pneumatic valves.
TRAINING PROGRAM
This unit enables to deepen the following issues:
• Heat transfer between fluids separated by a wall in co-current and counter-current
• Energy balance and calculation of efficiency
• Log Mean Temperature Difference (LMTD)
• Overall heat transfer coefficient (U)
• How flow rate and of temperature difference can affect the transfer coefficient
• Comparing the operating modes and performance of different types of heat exchangers
• Automatic flow control by PID controller
• System supervision by P.C.
TECHNICAL SPECIFICATIONS:
• Framework of AISI 304 stainless steel with castors
• Tube-in-tube heat exchanger of AISI 304 stainless steel, with exchange surface of 0.1 m2
• Shell-and-tube heat exchanger with shell of borosilicate glass and tubes of AISI 304 stainless steel, with exchange surface of 0.1 m2
• Plate-type heat exchanger of AISI 304 stainless steel, with exchange surface of 0.1 m2
• 2 magnetic induction flow meters with range of 0 to 1000 l/h, 4-20 mA output signal
• 2 pneumatic control valves of AISI 316 stainless steel, DN 15, Cv = 2.5
• 12 temperature sensors Pt 100 with sheath of AISI 316 stainless steel
• 12 electronic temperature indicators
• 2 manual controls for adjusting pneumatic valves
• Piping and valves of AISI 304 and AISI 316 stainless steel
• Switchboard IP55, complying with EC conformity mark, including plant synoptic and ELCB
• Power supply: 230 Vac 50 Hz single-phase – 0.5 kVA (Other voltage and frequency on request)
Besides being provided with all the characteristics, this model also includes the following additional items:
• Interface for the connection with a PC included in the switchboard
• Data acquisition software for Windows
Besides being provided with all the characteristics, this model also includes the following additional items:
• 2 microprocessor digital PID controllers with serial cards
• Supervision software for Windows: it enables to control ON-OFF signals, analog signals coming from PID controller, real-time trend and historical trend
