Environmental Balances of Thermal Superinsulations

Swanström, Lennart; Reiss, Harald; Troitsky, O.Yu.

doi:10.1007/s10765-007-0148-4

Cited by 6 publications

(3 citation statements)

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“…The eco-designs were performed with existing distributed and terminal wastewater treatment systems in an industrial plant (for case study I, five distributed and one terminal systems; and for case study II, seven distributed and one terminal systems). The systems were integrated based on a mathematical optimization model that was developed by using a superstructure model and by monetizing environmental impacts to economic costs, so-called external costs. − The solution to the developed mathematical model was schematically embodied into an eco-design outcome. This eco-design was compared to the designs generated by minimizing environmental impacts (hereinafter, this design is called “envi-design”) and economic costs (hereinafter, “cost-design”), respectively.…”

Section: Methodsmentioning

confidence: 99%

“…This monetization was performed by using the EPS 2000 methodology to evaluate external costs of principal contributors. The EPS methodology is based on the willingness-to-pay method to valuate environmental impacts in a monetary value (i.e., EUR). , This is generally used in environmental economics. The monetization was performed by using the Gabi 4.0 software in order to evaluate the unit external cost for piping, electricity consumption, and pipe recycling.…”

Section: Methodsmentioning

confidence: 99%

“…(16) The pipe material and labor costs are estimated by using their unit economic costs, which are calculated by using the regression equation from the relationship between the cross-sectional area of the pipe and the unit economic costs.…”

Section: Mathematical Optimization Model For Thementioning

confidence: 99%

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Eco-Design of a Wastewater Treatment System Based on Process Integration

Park

Lee

Lim

2013

Ind. Eng. Chem. Res.

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Because almost all industrial plants have wastewater treatment systems, eco-design of the systems is an effective way to reduce environmental impacts and economic costs of industry sectors. The eco-design using biobjective optimization has, however, a limitation due to the subjective weighting on the two objectives. The objective of this study is to eco-design existing wastewater treatment systems based on process integration by converting biobjective to single objective problems. For the mathematical optimization model, an objective function is formulated by monetizing environmental impacts to external costs and summing the external and economic costs. Mass balances and constraints are formulated to reflect the superstructure model and real situations. Two case studies are performed to verify the developed model. The eco-design outcomes are compared to their respective economic cost-and environmental impact-minimized designs. This comparison shows that the developed model optimizes the trade-offs between the biobjectives. This study can be applied to reduce environmental impacts and economic costs of other process systems.

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