scholarly journals A High-Level Approach for Energy Efficiency Improvement of FPGAs by Voltage Trimming

2021 ◽  
Author(s):  
Mehdi Safarpour
Keyword(s):  
Energy Efficiency ◽  
Voltage Scaling ◽  
Efficiency Improvement ◽  
Improve Energy Efficiency ◽  
Energy Efficiency Improvement ◽  
High Level

This paper proposes a solution that makes voltage scaling possible by simply using HLS tools provided by vendor to improve energy efficiency of FPGAs by 2x

scholarly journals A High-Level Approach for Energy Efficiency Improvement of FPGAs by Voltage Trimming

2021 ◽  
Author(s):  
Mehdi Safarpour
Keyword(s):  
Energy Efficiency ◽  
Voltage Scaling ◽  
Efficiency Improvement ◽  
Improve Energy Efficiency ◽  
Energy Efficiency Improvement ◽  
High Level

This paper proposes a solution that makes voltage scaling possible by simply using HLS tools provided by vendor to improve energy efficiency of FPGAs by 2x

scholarly journals A High-Level Approach for Energy Efficiency Improvement of FPGAs by Voltage Trimming

2021 ◽  
Author(s):  
Mehdi Safarpour ◽  
Lei Xun ◽  
Geoff V. Merrett ◽  
Olli Silven
Keyword(s):  
Energy Efficiency ◽  
Voltage Scaling ◽  
Efficiency Improvement ◽  
Improve Energy Efficiency ◽  
Energy Efficiency Improvement ◽  
High Level

This paper proposes a solution that makes voltage scaling possible by simply using HLS tools provided by vendor to improve energy efficiency of FPGAs by 2x

Energy Performance Benchmarking of Process Refrigeration Units

2021 ◽  
Author(s):  
Saqib Sajjad ◽  
Haseeb Ali
Keyword(s):  
Energy Efficiency ◽  
Energy Consumption ◽  
Energy Performance ◽  
Coefficient Of Performance ◽  
Efficiency Improvement ◽  
Performance Benchmarking ◽  
Energy Efficiency Improvement ◽  
Processing Plants ◽  
Detailed Assessment ◽  
High Level

Abstract Process refrigeration units are one of the major energy consumers at gas processing plants. Owing to the higher energy consumption, evaluation and benchmarking of energy performance of the refrigeration units is very important for identification of energy saving opportunities. In this regard, an energy performance benchmarking study was performed by detailed assessment and evaluation of the existing process refrigeration units to identify potential of energy efficiency improvement. The study encompassed twenty-one (21) process refrigeration units installed at five (05) different sites. The methodology included collection and analysis of design & operation data and review of key variables like percent load, anti-surge valve opening, condensing temperature & pressure and chilling temperature etc. Energy Performance Indicators (EnPIs) considered for the benchmarking were compressor's specific energy, coefficient of performance (COP) and relative COP (RCOP). A thermodynamic model was developed for each unit to ascertain the refrigeration load. Instead of usual high level benchmarking techniques, the study considered unit and equipment level benchmarking which provided better insight of the systems and helped in finding opportunities for energy efficiency improvement. Further, COP which is generally considered as a benchmarking EnPI, only considers refrigeration load and energy consumption, whereas, this study introduced a new EnPI named "Relative COP" which additionally takes into account the chilling and condensing temperatures and gives true energy performance benchmarking.

scholarly journals A multi-stakeholder perspective on opportunities and challenges for energy efficiency improvement in university buildings

2021 ◽  
Vol 246 ◽  
pp. 05006
Author(s):  
Gireesh Nair ◽  
Shoaib Azizi ◽  
Thomas Olofsson
Keyword(s):  
Energy Efficiency ◽  
Indoor Environment ◽  
Information Technologies ◽  
Energy Use ◽  
Efficiency Improvement ◽  
Improve Energy Efficiency ◽  
Energy Efficiency Improvement ◽  
Stakeholder Perspective ◽  
University Buildings ◽  
Multi Stakeholder

University buildings are relatively energy-intensive. In Sweden, universities usually operate in rented buildings. In this study, interviews were carried out among three categories of stakeholders in a Swedish university to understand their perceptions of energy use and challenges to improve energy efficiency. As per most interviewees, the university’s top management and Akademiska Hus, which owns the buildings, have the main responsibility to reduce the buildings’ energy and carbon footprint. The heads of departments raised the concern on the non-availability of energy data to take actions to reduce energy use. The use of sensors and information technologies to monitor space use, energy use, and indoor environment are attractive to different stakeholders. The implications of the interview results are discussed.

scholarly journals Classification of historical buildings based on energy efficiency tests and comfort tests

2021 ◽  
Vol 1203 (3) ◽  
pp. 032131
Author(s):  
Małgorzata Fedorczak-Cisak
Keyword(s):  
Energy Efficiency ◽  
Historic Buildings ◽  
Efficiency Improvement ◽  
Historical Buildings ◽  
In Situ Tests ◽  
Improve Energy Efficiency ◽  
Energy Efficiency Improvement ◽  
Polish Law

Abstract The article presents a proposal for the classification of historic buildings in terms of improving energy efficiency, ensuring the comfort of users and their impact on the environment. In the case of historic buildings, Polish law does not require energy efficiency improvement. The proposed classification also takes into account the function of the object and is largely based on "in situ" research. The presented model of classification will help users of historic buildings to undertake appropriate thermo-modernization measures to improve energy efficiency and comfort of use. In situ tests in historic buildings are of particular importance also for the correct diagnostics of this type of buildings.

Energy efficiency improvement and GHG abatement in the global production of primary aluminium

2014 ◽  
Vol 8 (4) ◽  
pp. 629-666 ◽  
Author(s):  
Katerina Kermeli ◽  
Peter-Hans ter Weer ◽  
Wina Crijns-Graus ◽  
Ernst Worrell
Keyword(s):  
Energy Efficiency ◽  
Efficiency Improvement ◽  
Energy Efficiency Improvement ◽  
Primary Aluminium
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