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Retrofit of heat exchanger networks with pressure recovery of process streams at sub-ambient conditions (2015)
Journal Article
Onishi, V. C., Ravagnani, M. A., & Caballero, J. A. (2015). Retrofit of heat exchanger networks with pressure recovery of process streams at sub-ambient conditions. Energy Conversion and Management, 94, 377-393. https://doi.org/10.1016/j.enconman.2015.02.

This paper presents a new mathematical programming model for the retrofit of heat exchanger networks (HENs), wherein the pressure recovery of process streams is conducted to enhance heat integration. Particularly applied to cryogenic processes, HENs... Read More about Retrofit of heat exchanger networks with pressure recovery of process streams at sub-ambient conditions.

Enzymatic hydrolysis of sugarcane molasses as pre-treatment for bioethanol production (2014)
Journal Article
Onishi, V., Olivo, J., Zanin, G., & Moraes, F. (2014). Enzymatic hydrolysis of sugarcane molasses as pre-treatment for bioethanol production. International Sugar Journal, 2014(Dec), 906-910

This study aimed at analysing the influence of enzymatic pre-hydrolysis of sugarcane molasses with α-amylase and amyloglucosidase on the subsequent alcoholic fermentation, with the objective of increasing bioethanol productivity. Sugarcane molasses m... Read More about Enzymatic hydrolysis of sugarcane molasses as pre-treatment for bioethanol production.

Simultaneous synthesis of work exchange networks with heat integration (2014)
Journal Article
Onishi, V. C., Ravagnani, M. A., & Caballero, J. A. (2014). Simultaneous synthesis of work exchange networks with heat integration. Chemical Engineering Science, 112, 87-107. https://doi.org/10.1016/j.ces.2014.03.018

The optimal integration of work and its interaction with heat can represent large energy savings in industrial plants. This paper introduces a new optimization model for the simultaneous synthesis of work exchange networks (WENs), with heat integrati... Read More about Simultaneous synthesis of work exchange networks with heat integration.

Simultaneous synthesis of heat exchanger networks with pressure recovery: Optimal integration between heat and work (2013)
Journal Article
Onishi, V. C., Ravagnani, M. A. S. S., & Caballero, J. A. (2014). Simultaneous synthesis of heat exchanger networks with pressure recovery: Optimal integration between heat and work. AIChE journal, 60(3), 893-908. https://doi.org/10.1002/aic.14314

The optimal integration between heat and work may significantly reduce the energy demand and consequently the process cost. This article introduces a new mathematical model for the simultaneous synthesis of heat exchanger networks (HENs), in which th... Read More about Simultaneous synthesis of heat exchanger networks with pressure recovery: Optimal integration between heat and work.

Mathematical programming model for heat exchanger design through optimization of partial objectives (2013)
Journal Article
Onishi, V. C., Ravagnani, M. A., & Caballero, J. A. (2013). Mathematical programming model for heat exchanger design through optimization of partial objectives. Energy Conversion and Management, 74, 60-69. https://doi.org/10.1016/j.enconman.2013.05.011

Mathematical programming can be used for the optimal design of shell-and-tube heat exchangers (STHEs). This paper proposes a mixed integer non-linear programming (MINLP) model for the design of STHEs, following rigorously the standards of the Tubular... Read More about Mathematical programming model for heat exchanger design through optimization of partial objectives.