A computational tool for analysing the response of complex heat exchanger networks to disturbances
Paper in proceedings, 2019

The heat exchanger networks (HEN) in industrial heat recovery systems often consist of large and complex subsystems. Calculating the response of such HENs to disturbances, such as varying inlet conditions or changing heat transfer capacities, may be challenging due to the presence of, e.g. stream splits and recycle loops. Extensive modelling and/or trial and error calculations may be necessary. This applies also for the analysis of different retrofit proposals. Retrofit opportunities in industrial heat recovery systems are often constrained by operability considerations, i.e. retrofit actions are supposed to have as little impact as possible on the production process to maintain the quality of the core product. Consequently, there is a clear demand for a tool to effectively screen design proposals at an early stage in the design process. In this work, a computational analysis tool is proposed to meet this demand. The proposed analysis tool allows fast evaluation of the network response when operating conditions change and/or operational settings are manipulated, and it is applicable for a wide range of HEN structures. The practical use of the analysis tool is demonstrated in a case study on the HENs of a large state-of-the-art Kraft pulp mill.

Operability

Flexibility

Pulp and paper industry

Retrofit

Heat integration

Author

Christian Langner

Chalmers, Space, Earth and Environment, Energy Technology, Energy Technology 1

Elin Svensson

Chalmers, Space, Earth and Environment, Energy Technology

Simon Harvey

Chalmers, Space, Earth and Environment, Energy Technology

PROCEEDINGS OF ECOS 2019 - THE 32ND INTERNATIONAL CONFERENCE ON EFFICIENCY, COST, OPTIMIZATION, SIMULATION AND ENVIRONMENTAL IMPACT OF ENERGY SYSTEMS

32ND INTERNATIONAL CONFERENCE ON EFFICIENCY, COST, OPTIMIZATION, SIMULATION AND ENVIRONMENTAL IMPACT OF ENERGY SYSTEMS
WROCLAW, Poland,

Flexible process integration solutions for the pulp and paper industry

Södra, 2017-01-01 -- 2019-12-31.

Swedish Energy Agency, 2017-01-01 -- 2019-12-31.

Driving Forces

Sustainable development

Subject Categories

Energy Engineering

Areas of Advance

Energy

More information

Latest update

12/18/2019