Left Ventricular Assist Devices

Molyneaux, Robert; Shah, N Sarita; Brown, Anson

doi:10.1007/978-3-319-25286-5_44

Cited by 2 publications

(1 citation statement)

References 37 publications

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“…A literature review identified recurring items related to the building performance, with a particular interest in green buildings. The most mentioned were energy efficiency, comfort, adaptability, reliability, and sustainability [34], [77]- [79].…”

Section: Building Energy Performance (Bep) Indicatormentioning

confidence: 99%

Estimating a Building’s Energy Performance using a Composite Indicator: A Case Study

Millán-Martínez

Osma-Pinto

Jaramillo-Ibarra

2022

TecnoL.

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Several studies have analyzed the integration of energy-saving strategies in buildings to mitigate their environmental impact. These studies focused mainly on a disaggregated analysis of such strategies and their effects on the building's energy consumption and thermal behavior, using energy engine simulation software (EnergyPlus, TRNSYS, and DOE2) or graphical interface software (DesignBuilder, eQuest, and ESP-r). However, buildings are complex systems whose energy behavior depends on the interaction of passive (e.g., location and construction materials) and dynamic (e.g., occupation) components. Therefore, this study proposes a composite indicator Building’s Energy Performance (BEP) as an alternative to deal with this complex and multidimensional phenomenon in a simplified way. This indicator considers energy efficiency and thermal comfort. The Electrical Engineering Building (EEB) of the Universidad Industrial de Santander was selected to verify the performance of the BEP indicator. In addition, a sensitivity analysis was performed for different mathematical aggregation methods and weighting values to test their suitability to reproduce the building behavior. Different simulation scenarios modeled with DesignBuilder software were proposed, in which the energy-saving strategies integrated with the building was individually analyzed. The results confirmed that the integration of the building's energy-saving strategies improved the BEP indicator by approximately 16%. It has also been possible to verify that the BEP indicator adequately reproduces the building’s energy behavior while guaranteeing comfort conditions. Finally, the Building Energy Performance indicator is expected to contribute to the integration of sustainability criteria in the design and remodeling stages of buildings.

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Section: Building Energy Performance (Bep) Indicatormentioning

confidence: 99%

Estimating a Building’s Energy Performance using a Composite Indicator: A Case Study

Millán-Martínez

Osma-Pinto

Jaramillo-Ibarra

2022

TecnoL.

View full text Add to dashboard Cite

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Computational Study on the Performance of a Centrifugal Lvad With the Impeller Designed by Industrial Method: Proposing Simple-to-Manufacture Lvad’s Impellers

Yazdanpanh-Ardakani

Niroomand-Oscuii

2021

J. Mech. Med. Biol.

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Although the demand of donor hearts for patients with end-stage heart failure is growing, its supply has remained constant. Ventricular assist devices (VADs) provide a chance of finding donor heart by increasing waiting period. In this study, the main goal is to employ an industrial method (point-by-point method) for designing blades profile with a simplified geometry which can be produced by conventional manufacturing methods. In this study, a centrifugal continuous-flow rotary pump is designed and the effects of components’ different geometries on the left ventricular assist devices (LVADs) function are investigated. Moreover, both hydraulic performance and blood damages (hemolysis index (HI)) caused by the pump are considered as design criteria. ANSYS CFX 17 is used to analyze the performance of the designed LVAD. Additionally, the geometry of components are investigated based on fulfilling the required performance of the LVAD while reducing the blood damage level. Comparing the designed VAD with the commercial ones shows that the designed blade further improves the performance of the centrifugal LVAD. Therefore, designing the impeller’s blade profile with point-by-point method seems to be promising. Simplicity in manufacturing is considered to be a big advantage for a design which also leads to lower manufacturing costs. This study demonstrates how industrial design methods can be employed to design simple-to-manufacture impellers which are suitable for LVADs.

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Left Ventricular Assist Devices

Cited by 2 publications

References 37 publications

Estimating a Building’s Energy Performance using a Composite Indicator: A Case Study

Estimating a Building’s Energy Performance using a Composite Indicator: A Case Study

Computational Study on the Performance of a Centrifugal Lvad With the Impeller Designed by Industrial Method: Proposing Simple-to-Manufacture Lvad’s Impellers

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