Optimal temperature control of reactors0 pages
Whitepaper
Economical Temperature Control
Optimal temperature
control of reactors
Temperature Control in pharmaceutical and chemical laboratories as well as pilot plants and industrial
processes requires of highly dynamic temperature
control systems. When controlling reactors, endothermic and exothermic reactions must be compensated for with extreme speed and reliability. When
specifying the most suitable temperature control
system a variety of conditions and influences must
be taken into consideration. This article provides
criteria and advice for choosing the most effective
and most efficient solution for your applications.
Contents
Temperature control of reactors .................................
Process stability ..........................................................
Investment security .....................................................
Operating safety ..........................................................
Checklists
Checklist 1: Process stabiliy ....................................
Checklist 2: Investment security .............................
Checklist 3: Operating safety ..................................
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Temperature control of reactors
Most temperature control applications involve reactors made of glass
or steel. Steel reactors are more robust and durable. Glass reactors allow the chemist to view processes within the reactor. However, glass
reactors require extenisve safety precautions for safe use.
Reactors generally have an inner vessel containing the samples which
require temperature control. The inner vessel is surrounded by a jacket
which contains heat-transfer liquid. The temperature control system is
connected to the reactor jacket.
To control the temperature of a reactor, the temperature control system
continuously pumps the heat-transfer liquid through the jacket of the
reactor. Sudden changes in temperature within the reactor are dynamically balanced by rapid heat-up or cool-down. The liquid is heated or
cooled within the temperature control system. A simplified temperature
control system is shown on the right.
Functional view of reactor
temperature control
Reactor
Samples
Temperature
control system
control
electronics
external
temperature
sensor
internal
expansion vessel
pump
Examples for applications of reactors
•tMini plants, pilot plants (e.g. pharmaceutical, chemical industries)
•tMaterial stress tests (e.g. automotive and aircraft
industries, space exploration)
•tTemperature simulation
Whitepaper „Optimale Temperierlösung“
reactor
jacket
loop circuit
heating
cooling
heat transfer liquid
heat exchanger
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