Hannes Schollenberger

Multi Objective Pinch Analysis (MOPA) for Integrated Process Design

The combination of process integration and Operations Research enables an integrated technique assessment and a subsequent process design. The application of Multi Objective Pinch Analysis (MOPA) permits the identification of overall saving potentials for energy, water and Volatile Organic Compounds (VOC). In this paper the general concept of MOPA is described and its application is shown in its first steps for a bicycle coating plant in Chile.

Integrated scenario analysis for metal surface treatment

As a result of new environmental legislation (EU-Solvent Directive, Directive on Integrated Pollution Prevention and Control IPPC), numerous companies from the metal surface treatment sector must reduce their emissions of organic solvents. Small enterprises will mainly employ alternative coating products with a lower content of organic solvents in process integrated measures. In large installations, improved end of pipe technologies such as waste gas treatment and application of alternative paints are utilised to meet the new emission limit values. These efforts together with tough competition on the market will lead to far-reaching changes within the sector. Predictions on future changes in the organisation and functioning of the value chain can be assisted via the methods of scenario analyses which are based on the examination of possible trends. The vertical integration of the value chain, which leads to an increasing number of large service providers that produce and apply coating materials, seems very probable. Also, a decreased number of small and medium sized enterprises that act as specialised niche providers will result. For this constellation, a continuing reduction of environmental impacts and costs cannot be achieved by single enterprises. Therefore, an approach for an integrated and inter-plant process design, based on the Pinch-Analysis for the value chain of metal coating, will be necessary and thus is introduced in this article.

Multi Objective Pinch Analysis (MOPA) Using PROMETHEE to Evaluate Resource Efficiency

Process optimisation on the basis of detailed process characteristics requires the simultaneous consideration of different mass and energy flows and leads to a multi-criteria problem. Different technological options can be compared based on targets calculated by pinch analyses and further criteria. The approach is applied to a case study on bicycle coating.

Modeling and Integrated Assessment of Mass and Energy Flows within Supply Chains

For an integrated assessment of mass and energy flows the specification and detailed mapping of the technical requirements and the material properties is essential. Integrated process design of supply chain structures aims at a holistic approach to process design and operations planning, since changes in materials and operating states influence the whole supply chain. The combination of methods of process integration and Operations Research (OR) in Multi Objective Pinch Analysis (MOPA) allows the consideration of a variety of economic and environmental process attributes for an integrated technique assessment. Consequently, the focus here will be the development of a method for optimizing inter-enterprise plant layout planning in dynamic mass flow networks.

Integrated process design for the inter-company plant layout planning of dynamic mass flow networks. PepOn

Inter-company production networks can improve the resource efficiency of production processes. This book shows the results of the research project Integrated Process Design for the Inter-Company Plant Layout Planning of Dynamic Mass Flow Networks (PepOn). A systematic approach for process design for the best utilisation of process streams based on multiple pinch analyses is proposed for a holistic evaluation of process alternatives and for determining saving potentials for production networks.

Mass and energy flow management in the sector of surface treatment

Vehicle refinishing body shops are concerned by the environmental policy against photochemical air pollution caused by VOC emissions. For supporting these small enterprises the mass and energy flow model IMPROVE has been developed. Based on an LCA-approach, the process steps of vehicle refinishing are modelled. The model IMPROVE helps to disseminate the consequences of product substitution in comparison to so far used products and techniques in the body shop. For the dissemination of experiences practical guidelines have been developed. Moreover, a comprehensible tool for the Solvent Balance is being offered. Thus, various means are available for consulting and also for strategic production planning for the SME in the sector.