An economic and environmental assessment model for microchannel device manufacturing: part 2 – Application

Gao, Qi; Lizarazo-Adarme, Jair A.; Paul, Brian K.; Haapala, Karl R.

doi:10.1016/j.jclepro.2015.04.141

Cited by 28 publications

(7 citation statements)

References 16 publications

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“…While the application of microchannel heat exchangers in industry has been slowed by high manufacturing costs, at present, there is an intensive work toward low‐cost fabrication technologies. Alternate processes for the production of microchannel devices are under study, and exploring the cost structure of high volume manufacturing approaches will certainly lower cost fabrication …”

Section: Resultsmentioning

confidence: 99%

Modeling and performance analysis of an absorption chiller with a microchannel membrane-based absorber using LiBr-H₂ O, LiCl-H₂ O, and LiNO₃ -NH₃

2018

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Summary In order to develop compact absorption refrigeration cycles driven by low heat sources, the simulated performance of a microchannel absorber of 5‐cm length and 9.5 cm3 in volume provided with a porous membrane is presented for 3 different solution‐refrigerant pairs: LiBr‐H2O, LiCl‐H2O, and LiNO3‐NH3. The high absorption rates calculated for the 3 solutions lead to large cooling effect to absorber volume ratios: 625 kW/m3 for the LiNO3‐NH3, 552 kW/m3 for the LiBr‐H2O, and 318 kW/m3 for the LiCl‐H2O solutions given the studied geometry. The performance of a complete absorption system is also analyzed varying the solution concentration, condensation temperature, and desorption temperature. The LiNO3‐NH3 and the LiBr‐H2O solutions provide the largest cooling effects. The LiNO3‐NH3 can work at a lower temperature of the heating source, in comparison with the one needed in a LiBr‐H2O system. The lowest cooling effect and coefficient of performance are found for the LiCl‐H2O solution, but this mixture allows the use of lower temperature heating sources (below 70°C). These results can be used for the selection of the most suitable solution for a given cooling duty, depending on the available heat source and condensation temperature.

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Section: Resultsmentioning

confidence: 99%

Modeling and performance analysis of an absorption chiller with a microchannel membrane-based absorber using LiBr-H₂ O, LiCl-H₂ O, and LiNO₃ -NH₃

2018

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“…A coil microchannel was successfully implemented in a condenser by Schutte et al (2016). Gao et al (2016) looked at the price of making microchannels. The industry's utilisation of microchannels is constrained by their expensive fabrication costs.…”

Section: Microchannels Used As Heat Sinksmentioning

confidence: 99%

A Review on Microchannel Fabrication Methods and Applications in Large-Scale and Prospective Industries

Afzal¹,

Tayyaba²,

Ashraf³

et al. 2022

Evergreen

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Microchannels based on microelectromechanical systems (MEMS) have received a lot of interest in the microfluidics and biomedical fields over the past forty years. While their applications have been multifarious, a comprehensive literature review focusing on their design, type, and applications is not currently present in the literature. Researchers working on these elements of microchannels will gain targeted knowledge from the current review on microchannels. Due to its advanced properties, flexibility of mass, and small size, microdevice demand has been rising quickly, particularly in industrial applications. The classification of microchannels and their uses are the main focus of this work. These include but are not limited to molding, electroplating, lithography, lab-ona-chip, micromolding, micromachining, micromilling, laser ablation, lithography, microcontact printing (µcp), hot embossing, electrochemical micromachining (EMM), and etching. In addition, numerous hybrid techniques for microchannel manufacturing have been reported. So, in essence, this review offers a range of advancements in microchannel manufacturing. The review also attempts to present a qualitative analysis describing the various methodologies associated with microchannels in terms of their design, shape, and flow regimes for applications such as pressure drop and transfer of heat prediction. Additionally, depending on the precise uses needed, a number of materials, including but not limited to ceramics, silicon, metals, and polymers, are utilized in the manufacture of microchannels. On metallic substrates, polymers such as silicon, glass, and polymeric materials are used. The biomedical industry uses polymeric and glass substrates instead of silicon substrates, which are used for mechanical engineering and electronic applications. In addition to outlining methods for choosing the best kind of microchannel, this paper also suggests important directions for the future.

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“…Prior research has investigated process-based methods decision makers can use to evaluate the cradle-to-gate product life cycle scope from a sustainability perspective (Alsaffar et al, 2016;Eastwood and Haapala, 2015;Gao et al, 2016aGao et al, , 2016b. In addition to these methods, several life cycle assessment (LCA) software tools have been developed to quantify the environmental impacts of the products.…”

Section: Limitations Of Prior Workmentioning

confidence: 99%

A cyberlearning platform for enhancing undergraduate engineering education in sustainable product design

Raoufi

Park

Khan

et al. 2019

Journal of Cleaner Production

Self Cite

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Existing tools for educating undergraduate students about sustainable engineering methods are notably lacking. In particular, these tools are unable to support the assessment of competing objectives in the evaluation of economic, environmental, and social performance across the lifecycle during product design. In an effort to address this deficiency, an interactive, web-based learning environment, a distributed cyberlearning environment, Constructionism in Learning: Sustainable Life Cycle Engineering (CooL:SLiCE) has been created. CooL:SLiCE aims to facilitate the consideration of different human controlled/initiated impacts on the natural environment through personalized individual and team-based design activities. Thus, CooL:SLiCE enables constructionist (physical, hands-on) learning in engineering via a virtual platform that allows students to visualize/analyze the effect of changes to product designs, manufacturing processes, and supply chain configurations on sustainability performance. The overall conceptual framework of the CooL:SLiCE platform is discussed. Additionally, the application of constructionism as a pedagogical approach for sustainable engineering education is presented. The framework is designed to facilitate attainment of deeper conceptual understanding in environmentally responsible product design and manufacturing by supplying a set of tools that support a constructivist learning environment. This tool set is based on disparate methodologies from the design, industrial, and manufacturing engineering domains. A team project was undertaken to pilot the CooL:SLiCE platform to aid design and assessment during the sustainable product development process. The pilot project demonstrated the capacity of the CooL:SLiCE platform in the understanding of sustainable product design concepts. This research advances the current educational tools for sustainable product design by integrating three learning modules into a web-based environment developed in the CooL:SLiCE project to provide a platform for learning not currently accessible to engineering educators and students. Future work will mainly focus on using the platform in the classroom settings to investigate its effect on improving student understanding of sustainable life cycle engineering.

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An economic and environmental assessment model for microchannel device manufacturing: part 2 – Application

Cited by 28 publications

References 16 publications

Modeling and performance analysis of an absorption chiller with a microchannel membrane-based absorber using LiBr-H₂ O, LiCl-H₂ O, and LiNO₃ -NH₃

Modeling and performance analysis of an absorption chiller with a microchannel membrane-based absorber using LiBr-H₂ O, LiCl-H₂ O, and LiNO₃ -NH₃

A Review on Microchannel Fabrication Methods and Applications in Large-Scale and Prospective Industries

A cyberlearning platform for enhancing undergraduate engineering education in sustainable product design

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An economic and environmental assessment model for microchannel device manufacturing: part 2 – Application

Cited by 28 publications

References 16 publications

Modeling and performance analysis of an absorption chiller with a microchannel membrane-based absorber using LiBr-H2 O, LiCl-H2 O, and LiNO3 -NH3

Modeling and performance analysis of an absorption chiller with a microchannel membrane-based absorber using LiBr-H2 O, LiCl-H2 O, and LiNO3 -NH3

A Review on Microchannel Fabrication Methods and Applications in Large-Scale and Prospective Industries

A cyberlearning platform for enhancing undergraduate engineering education in sustainable product design

Contact Info

Product

Resources

About

Modeling and performance analysis of an absorption chiller with a microchannel membrane-based absorber using LiBr-H₂ O, LiCl-H₂ O, and LiNO₃ -NH₃

Modeling and performance analysis of an absorption chiller with a microchannel membrane-based absorber using LiBr-H₂ O, LiCl-H₂ O, and LiNO₃ -NH₃