The apparatus consists of a concentric tube heat exchanger. Hot fluid flows through inner tube in one direction only and cold water flows over the inner tube in outer tube. Direction of cold fluid flow can be changed from parallel or counter to hot water so that unit can be operated as parallel or counter flow heat exchanger. Flow rates of hot and cold water are measured using Rotameters. A magnetic drive pump is used to circulate the hot water from a re-cycled type water tank, which is fitted with heaters and Digital Temperature Controller.
EXPERIMENTS
To calculate the following parameters both for parallel and counter flow arrangement.
To find the rate of heat transfer
To calculate the LMTD
Overall heat transfer co-efficient.
FEATURES
Superb Painted structure
Simple to operate & maintain
UTILITIES REQUIRED
Water supply 10 lit/min (approx.) and drain
Electricity Supply: 1Phase, 220 V AC, 3 kW
Floor area 1 m x 1 m
TECHNICAL DETAILS
Product & Code
Heat Transfer in Laminar flow & HT 15
System
Oil to Water
Length of Heat Exchanger
1.6 m(approx.)
Outer Tube
Material Stainless steel, ID 27.5mm, OD 33.8 mm (approx).
Inner Tube
OD 12.7mm (approx)
Water Flow Measurement
Measuring cylinder & Stop Watch with Rotameters (2Nos.) one each for cold & hot fluid
Hot Fluid Tank
Made of Stainless steel Insulated with ceramic fiber wool.
Hot Fluid Circulation
Magnetic Pump made of Polypropylene to circulate Hot Water. Maximum working temperature is 70°C.
Heaters
Nichrome wire heater (2 Nos.)
Temperature Sensors
RTD PT-100 type 6 Nos.
Control panel
Digital Temperature Controller: 0-199.9°C (For Hot Water Tank),
Digital Temperature Indicator: 0-199.9°C,with multi-channel switch, On/Off switch, Mains Indicator etc
Overall Dimensions
(L x B x H)
Painted rigid MS structure is provided to support all parts
