Page 61 - PIGNAT catalogue 2020 GB_092020

MULTI - EXCHANGERS

BET/3000 THREE-EXCHANGER TEST RIG

➢ Compare three industrial heat exchangers with identical
surface areas

➢ Two technology (tubular, plates) same material

➢ Two materials (stainless steel, glass) same technology

Study the parameters affecting heat transfer
Exchanger materials: glass, stainless steel
Regime: turbulent, laminar
Circulation: co-current, counter-current
Thermal transfer fluid used: hot water, steam

Characterize and compare heat transfers
Thermal balance
Yield
Overall experimental and theoretical heat exchange coefficient K

Study the condensation of steam

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www.pignat.com glass/stainless steel • Manometer.

General specifications

Instrumentation
Supervision - Data acquisition • ECH1: plate exchanger, stainless • Temperature probes Pt100Ω.
• Flowmeters.
steel.

• ECH2:
exchanger, SURLYN coated. Tube
with baffle-plates, composed of
thirteen SS tubes.

• ECH3: glass/glass exchanger,
SURLYN coated. Tube with
baffle-plates, composed of glass
tubes.

For each of these three exchangers:
• Two three-way valves for
Historical and real time curves selection of the direction of
circulation.
The design of this unit allows the study of three industrial exchangers
with identical surfaces: a plate heat exchanger, a glass shell and SS
tube heat exchanger and a glass shell and glass tube heat exchangers. • Heating unit.
200 - 400 V
20 kg/h
Water
Two three‐way valves allows the study in co‐current and counter- • Steam circuitry: flowrate and 3ϕ - 50/60 Hz 1000 L / h 1 bar max
current flow in each heat exchanger. bottling of condensate
setting valves. Dim (frame): 200 x 95 x 200 cm - 200 kg
The hot water flow rate is adjusted on two flowmeters by two control
valves than can choose to feed upwards one of the head exchangers.

Condensation operation
Steam, expanded, is injected into the glass- glass heat exchanger 4.
Formed condensates are discharged at the bottom and the flow rate
is measured by potting. Option

Over each exchanger, four temperature sensors make it Steam generator
possible to produce a precise heat balance.

The third heat exchanger used to study the heat transfer
during condensation (steam generator option)

Heat exchange
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