Start-up (process engineering)

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When starting up in which it is processing technology , the transfer of a plant into the stationary driving designated.

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When stationary driving is reached, all essential process stages should be able to work properly. Until then, many components will not have the optimal operating temperature. In thermal systems, therefore, there are increased emissions during start-up , which are expressed, among other things, in increased soot and carbon monoxide production. For systems whose stationary operation is significantly longer than the start-up process, the then increased emissions are negligible.

The travel time of a system begins with its start-up. Just like moving off, moving off is part of normal operation. Both processes do not belong to normal operation , but to regular operation .

The duration of the start-up process can be very different depending on the system. It ranges from a few minutes for internal combustion engines to periods of several hours or days for waste incineration plants .

Individual evidence

  1. ↑ a b c VDI 3459 sheet 1: 2017-11 Terminology in energy and waste management; Basics. Beuth Verlag, Berlin, p. 36.
  2. ↑ a b c d Harald Pfaller, Heinz-Uwe Riedel, Clemens Marb: Exhaust emissions from thermal systems: From standstill to unsteady to (quasi-) stationary operation. In: Hazardous substances - cleanliness. Air . 70, No. 5, 2010, ISSN  0949-8036 , pp. 188-196.
  3. ↑ a b Vivien Steck, Heinz Riedel, Clemens Marb: PCDD / F emissions during start-up processes in (domestic) waste incineration plants. In: Hazardous substances - cleanliness. Air. 67, No. 11/12, 2007, ISSN  0949-8036 , pp. 471-480.
  4. ↑ VDI 3459 sheet 1: 2017-11 Terminology in energy and waste management; Basics. Beuth Verlag, Berlin, p. 43.
  5. ↑ VDI 3459 sheet 1: 2017-11 Terminology in energy and waste management; Basics. Beuth Verlag, Berlin, p. 39.