A Survey of O&M Practices for High Performance Buildings in the Building Industry

ABSTRACT Purpose — The purpose of this paper is to document in part the study that was conducted for a research project ASHRAE RP-1650, which investigates the training requirements for sustainable high-performance building (HPB) operations and maintenance (O&M). This paper documents the intent, procedures and findings of a portion of the research project, which includes a survey of O&M practices for high performance buildings in the industry. The purpose of the survey as reported in this paper was to confirm and refine the level of understanding of KSCs for operating HPBs as perceived by O&M personnel in the industry. The details of the survey and the results are presented in this paper. The survey was sent out to facility managers in the industry who are involved with the O&M of HPB systems and equipment. 221 facility managers were surveyed in this study. Design/methodology/approach — This study utilizes a concurrent mixed-method research, which considers both qualitative and quantitative responses. Findings — The study found that while most technicians were ‘moderately well' to ‘very well' trained for the configuration and components as well as the installation, repair and replacement of different high performance equipment and systems, they lacked essential knowledge to address issues such as: controls; tracking of variables; programming and operation of modulation devices implemented in high-performance systems and equipment. This finding implied a lack of ‘Systems Thinking' approach, which the study found to be pertinent and essential for the O&M of HPB systems and equipment. Originality/value — The study is utilized to identify gaps between the training requirements for O&M of HPBs identified from the literature review of the research project and the current industry practices. The identified gaps are valuable to develop learning objectives for training programs that are aimed to train personnel responsible for the O&M of HPBs.

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МЕТОДЫ ДОСТИЖЕНИЯ МАКСИМАЛЬНОЙ ЭФФЕКТИВНОСТИ ПЛАТФОРМЫ ПРОТОТИПИРОВАНИЯ ВЫСОКОПРОИЗВОДИТЕЛЬНЫХ СИСТЕМ НА КРИСТАЛЛЕ НА ЗАДАЧАХ ИСКУССТВЕННОГО ИНТЕЛЛЕКТА

Nanoindustry Russia ◽

10.22184/1993-8578.2020.13.3s.585.588 ◽

2020 ◽

Vol 96 (3s) ◽

pp. 585-588

Author(s):

С.Е. Фролова ◽

Е.С. Янакова

Keyword(s):

Neural Network ◽

Artificial Intelligence ◽

Computer Vision ◽

High Performance ◽

Systems On Chip ◽

High Performance Systems ◽

On Chip ◽

Network Technologies ◽

Neural Network Technologies

Предлагаются методы построения платформ прототипирования высокопроизводительных систем на кристалле для задач искусственного интеллекта. Изложены требования к платформам подобного класса и принципы изменения проекта СнК для имплементации в прототип. Рассматриваются методы отладки проектов на платформе прототипирования. Приведены результаты работ алгоритмов компьютерного зрения с использованием нейросетевых технологий на FPGA-прототипе семантических ядер ELcore. Methods have been proposed for building prototyping platforms for high-performance systems-on-chip for artificial intelligence tasks. The requirements for platforms of this class and the principles for changing the design of the SoC for implementation in the prototype have been described as well as methods of debugging projects on the prototyping platform. The results of the work of computer vision algorithms using neural network technologies on the FPGA prototype of the ELcore semantic cores have been presented.

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High performance buildings with optimized energy systems based on exergy principles

IOP Conference Series Materials Science and Engineering ◽

10.1088/1757-899x/1138/1/012005 ◽

2021 ◽

Vol 1138 (1) ◽

pp. 012005

Author(s):

I Boian ◽

I Tuns

Keyword(s):

High Performance ◽

Energy Systems ◽

High Performance Buildings

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AFX Zeolite for Use as a Support of NH3-SCR Catalyst Mining through AICE Joint Research Project of Industries–Academia–Academia

Catalysts ◽

10.3390/catal11020163 ◽

2021 ◽

Vol 11 (2) ◽

pp. 163

Author(s):

Masaru Ogura ◽

Yumiko Shimada ◽

Takeshi Ohnishi ◽

Naoto Nakazawa ◽

Yoshihiro Kubota ◽

...

Keyword(s):

High Performance ◽

Ionic Species ◽

Research Project ◽

Joint Research ◽

Structure Directing Agent ◽

Scr Catalyst ◽

Organic Structure ◽

Nh3 Scr ◽

Joint Research Project ◽

The One

This paper introduces a joint industries–academia–academia research project started by researchers in several automobile companies and universities working on a single theme. Our first target was to find a zeolite for NH3-SCR, that is, zeolite mining. Zeolite AFX, having the same topology of SSZ-16, was found to be the one of the zeolites. SSZ-16 can be synthesized by using an organic structure-directing agent such as 1,1′-tetramethylenebis(1-azonia-4-azabicyclo[2.2.2]octane; Dab-4, resulting in the formation of Al-rich SSZ-16 with Si/Al below five. We found that AFX crystallized by use of N,N,N′,N′-tetraethylbicyclo[2.2.2]oct-7-ene-2,3:5,6-dipyrrolidinium ion, called TEBOP in this study, had the same analog as SSZ-16 having Si/Al around six and a smaller particle size than SSZ-16. The AFX demonstrated a high performance for NH3-SCR as the zeolitic support to load a large number of divalent Cu ionic species with high hydrothermal stability.

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Energy Saving Quantitative Analysis of Passive, Active, and Renewable Technologies in Different Climate Zones

Applied Sciences ◽

10.3390/app11157115 ◽

2021 ◽

Vol 11 (15) ◽

pp. 7115

Author(s):

Chul-Ho Kim ◽

Min-Kyeong Park ◽

Won-Hee Kang

Keyword(s):

Renewable Energy ◽

Energy Consumption ◽

Energy Saving ◽

High Performance ◽

Energy Systems ◽

Outdoor Air ◽

Climate Zones ◽

Renewable Energy Systems ◽

Active Systems ◽

High Performance Buildings

The purpose of this study was to provide a guideline for the selection of technologies suitable for ASHRAE international climate zones when designing high-performance buildings. In this study, high-performance technologies were grouped as passive, active, and renewable energy systems. Energy saving technologies comprising 15 cases were categorized into passive, active, and renewable energy systems. EnergyPlus v9.5.0 was used to analyze the contribution of each technology in reducing the primary energy consumption. The energy consumption of each system was analyzed in different climates (Incheon, New Delhi, Minneapolis, Berlin), and the detailed contributions to saving energy were evaluated. Even when the same technology is applied, the energy saving rate differs according to the climatic characteristics. Shading systems are passive systems that are more effective in hot regions. In addition, the variable air volume (VAV) system, combined VAV–energy recovery ventilation (ERV), and combined VAV–underfloor air distribution (UFAD) are active systems that can convert hot and humid outdoor temperatures to create comfortable indoor environments. In cold and cool regions, passive systems that prevent heat loss, such as high-R insulation walls and windows, are effective. Active systems that utilize outdoor air or ventilation include the combined VAV-economizer, the active chilled beam with dedicated outdoor air system (DOAS), and the combined VAV-ERV. For renewable energy systems, the ground source heat pump (GSHP) is more effective. Selecting energy saving technologies that are suitable for the surrounding environment, and selecting design strategies that are appropriate for a given climate, are very important for the design of high-performance buildings globally.

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High-performance chemical- and light-inducible recombinases in mammalian cells and mice

Nature Communications ◽

10.1038/s41467-019-12800-7 ◽

2019 ◽

Vol 10 (1) ◽

Cited By ~ 9

Author(s):

Benjamin H. Weinberg ◽

Jang Hwan Cho ◽

Yash Agarwal ◽

N. T. Hang Pham ◽

Leidy D. Caraballo ◽

...

Keyword(s):

Gene Expression ◽

Mammalian Cells ◽

High Performance ◽

Genome Engineering ◽

Genetic Circuits ◽

Control Of Gene Expression ◽

Expression Control ◽

Gene Expression Control ◽

High Performance Systems ◽

Spatiotemporal Control

Abstract Site-specific DNA recombinases are important genome engineering tools. Chemical- and light-inducible recombinases, in particular, enable spatiotemporal control of gene expression. However, inducible recombinases are scarce due to the challenge of engineering high performance systems, thus constraining the sophistication of genetic circuits and animal models that can be created. Here we present a library of >20 orthogonal inducible split recombinases that can be activated by small molecules, light and temperature in mammalian cells and mice. Furthermore, we engineer inducible split Cre systems with better performance than existing systems. Using our orthogonal inducible recombinases, we create a genetic switchboard that can independently regulate the expression of 3 different cytokines in the same cell, a tripartite inducible Flp, and a 4-input AND gate. We quantitatively characterize the inducible recombinases for benchmarking their performances, including computation of distinguishability of outputs. This library expands capabilities for multiplexed mammalian gene expression control.

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