HT 14 PARALLEL /COUNTER FLOW HEAT EXCHANGER (Double Pipe Heat Exchanger)

Description

 

Heat exchanger is devices in which heat is transferred from one fluid to another. The apparatus consists of a concentric tube heat exchanger. Hot water 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.
  • To compare the performance of Parallel and Counter flow heat exchanger.

 

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 2 m x 0.6m

TECHNICAL DETAILS

Product & Code Parallel/Counter Flow Heat Exchanger & HT 14
System Water 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 Water Tank Made of Stainless steel Insulated with ceramic fiber wool.
Hot Water Circulation Magnetic Pump made of Polypropylene to circulate Hot Water. Maximum working temperature is 85°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
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