CONCENTRIC HEAT EXCHANGER
SOLTEQ®
MODEL: HE 104
This Concentric Heat Exchanger (Model: HE 104) is developed to investigate the fundamental principles
of heat transfer as applied to a liquid-to-liquid heat exchanger. A simple arrangement of valves allows
DESCRIPTION
The apparatus requires only a cold water supply, single
phase electrical outlet and a bench top to enable a series
of simple measurements to be made by students
needing an introduction to heat exchanger design and
operation. Experiments can be readily conducted in a
short period of time, without the need of setting up
operations, to accurately show the practical importance
of the followings:
a) Temperature profiles
b) Co- and counter-current flow
c) Energy balances
d) Log mean temperature difference
e) Heat transfer coefficients
The equipment consists of a concentric tube exchanger
in the form of “U”, mounted on a support frame. The
external surface of the exchanger is insulated. Six
temperature sensors are installed in both the inlet and
outlet tubes, to measure the fluid temperatures
accurately. To minimise losses in the system, the hot
water is fed through the inner pipe, with the cooling water
in the outer annulus. Control valves are
operation as either a parallel flow or counter-flow heat exchanger enabling temperature profiles, energy
Equipment for Engineering Education & Research
balances, heat transfer coefficients and log mean temperature differences to be obtained for both conditions.
Rev1.0 20/08/2010
SOLTEQ
SOLTEQ®
incorporated in each of the two streams to regulate the
flow. The flow rates are measured using independent
flow meters installed in each line.
Temperature and flow readings could continuously being
captured and logged into the computer with optional
Data Acquisition System. These data are useful for
further calculations and analysis. On-line trending
display allows student to observe the fluctuations of flow
and temperature readings immediately.
The hot water system is totally self-contained. A hot
water storage tank is equipped with an immersion type
heater and a temperature controller. Circulation to the
heat exchanger is provided by a pump, and water
returns to the storage tank via a baffle arrangement to
ensure adequate mixing. The cold water required for
the exchanger is taken from the laboratory mains supply.
A readily identifiable valve arrangement allows simple
change-over between co- and counter-current
configurations.
EXPERIMENTAL CAPABILITIES
♦ Energy balance determination
♦ Temperature profiles in co- and counter-current
flows
♦ Log mean temperature difference
♦ Heat transfer coefficient calculation
♦ Effect of flow rate on heat transfer rate
♦ Heat loss estimation and ‘k-factors’
SPECIFICATIONS
Bench mounted concentric tube arrangement in ‘U’
shape, whereby heat transfer takes place between hot
and cold water streams. External surface of the
exchanger is insulated. Six temperature sensors and
two rotameters are located in each of hot and cold lines.
Flow regulators are incorporated in both streams.
Simple valve arrangement allows change-over between
co- and counter-current configurations. Requires only
cold water and electricity.
i) Heat Exchanger:
Max. working pressure : 7 bar
Max. working temperature : 80 oC
Heater : 3 kW, immersion type
ii) Temperature Controller:
Input : RTD or T/C
Output : ON/OFF
iii) Circulation Pump:
Capacity : 10 LPM @ 2m
Voltage : 230 VAC/50Hz/1ph
iv) Sump Tank:
Material : stainless steel
Capacity : 30 L
v) Rotameters:
0.2 - 3.0 LPM
0.5 - 5.0 LPM
vi) Instrumentations:
Temperature sensors
Flowmeter
OPTIONAL ITEMS
- EI
DIGITAL INSTRUMENTATION
i) 2 units of digital indicators
ii) 1 unit of flowmeter
iii) 1 unit of RTD sensors c/w transmitter
-DAS
SOLDAS DATA ACQUISITION SYSTEM
i) A PC with latest Pentium Processor
ii) An electronic signal conditioning system
iii) Stand alone data acquisition modules
iv) Windows based software
♦ Data Logging
♦ Signal Analysis
♦ Process Control
♦ Real-Time Display
Equipment for Engineering Education & Research
Rev1.0 20/08/2010
SOLTEQ
♦ Tabulated Results
♦ Graph of Experimental Results
- CAL
SOLCAL COMPUTER AIDED LEARNING
SOFTWARE
i) Interactive multimedia features
ii) Graphical simulation
iii) Experiment results samples
iv) Full experiment manuals
REQUIREMENTS
Electricity : 240VAC/1-phase/50Hz/13Amps
Water : 20 LPM
OVERALL DIMENSIONS
Height : 1.67 m
Width : 1.21 m
Depth : 0.70 m
MANUAL
The unit is supplied with Operating and Experiment
manuals in English.
SOLTEQ®Equipment for Engineering Education & Research
Rev1.0 20/08/2010
Our range of teaching equipment can be complemented with our
SOLDAS and SOLCAL software.
SOFTWARE & E - LEARNING
SOLDAS - Supervisory Control & Data Acquisition
- Data Logging
- Signal Analysis
- Process Control
- Real-Time Display
- Tabulated Results
- Graph of Experimental Results
SOLCAL - Computer Aided Learning
- Multimedia Features
- Interactive
- Graphic Simulation
- Experiment Result Samples
- Full Experiment Manuals
SOLTEQ®
Contact us for a catalog CD
SOLUTION ENGINEERING SDN. BHD.(Co. No. 174876-M)
Sales Office :
No.3, Jalan TPK 2/4, Taman Perindustrian Kinrara,47100 Puchong, Selangor Darul Ehsan, Malaysia.Tel. No. : +(603) 80758000
Fax. No.: +(603) 80755784
R&D Office :
G-2A, Incubator 3, Technology Park Malaysia,Bukit Jalil, 57000 Kuala Lumpur, Malaysia.Tel. No. : +(603) 8996 0023
Email : [email protected] site : http//www.solution.com.my/
AGENT:
Equipment for Engineering Education & Research
BUATAN MALAYSIA
MSC- StatusCompany
®
®
Rev1.0 20/08/2010