The impact of Power transformers on the Energy Performance Indicators of the power distribution grids of industrial end-users transitioning towards environmental sustainability

2021 ◽  
Author(s):  
Cristian Gheorghiu ◽  
Mircea Scripcariu ◽  
Stefan Gheorghe ◽  
Miruna Gheorghiu ◽  
Alexandra Gabriela Dobrica
Keyword(s):  
Environmental Sustainability ◽  
Performance Indicators ◽  
Power Distribution ◽  
Energy Performance ◽  
End Users ◽  
Power Transformers ◽  
The Impact ◽  
Distribution Grids

scholarly journals From Energy Audit to Energy Performance Indicators (EnPI): A Methodology to Characterize Productive Sectors. The Italian Cement Industry Case Study

Energies ◽  
2021 ◽  
Vol 14 (24) ◽  
pp. 8436
Author(s):  
Giacomo Bruni ◽  
Alessandra De Santis ◽  
Carlos Herce ◽  
Luigi Leto ◽  
Chiara Martini ◽  
...  
Keyword(s):  
Performance Indicators ◽  
Energy Transition ◽  
Energy Performance ◽  
Point Of View ◽  
Cement Industry ◽  
Economic Sectors ◽  
Metallic Mineral ◽  
Energy Audits ◽  
The Impact

In this work, a novel methodology to assess energy performance indicators of productive and economic sectors trough the analysis of the Italian mandatory energy audits database is presented. The updating of sectoral reference energy performance indicators is fundamental for both companies and policy makers—for the formers to evaluate and compare their energy performance with competitors in order to achieve improvements and for the latter to effectively monitor the impact of energy policies. This methodology could be potentially applied to all production sectors, providing key information needed to characterize various production processes from an energy point of view. Awareness of energy efficiency and sectorial benchmarking represent the first necessary steps for companies moving towards energy transition. This paper provides details of the statistical method developed and its application to the NACE 23 division “Manufacturing of other non-metallic mineral products”, with a focus on the cement industry. For this sector, results are presented in terms of specific indicators based on energy source. General results, methodological insights, and validation of the proposed case study are discussed.

scholarly journals Sustainability Assessment of Urban Water Use from Building to Urban Scale in the GST4Water Project

Proceedings ◽  
2018 ◽  
Vol 2 (11) ◽  
pp. 671 ◽  
Author(s):  
Emanuela Di Fusco ◽  
Alessandro Lenci ◽  
Tonino Liserra ◽  
Valentina Ciriello ◽  
Vittorio Di Federico
Keyword(s):  
Environmental Sustainability ◽  
Performance Indicators ◽  
Water Demand ◽  
Sustainability Assessment ◽  
Multiple Scales ◽  
Software Tool ◽  
Urban Water ◽  
Management Options ◽  
Urban Water Use ◽  
The Impact

The present paper illustrates some of results obtained in the GST4Water project concerning the development of appropriate metrics, methods and tools for the assessment of economic and environmental sustainability of urban water systems at different scales for a variety of stakeholders. At the household scale and based on data and algorithms to represent residential water demand, we reconstruct the behavior of domestic users and develop a suite of indicators accounting for consumption performances and sustainability, and a software tool geared at the needs of water consumers. Considering multiple scales ranging from household to urban, we develop a model based on urban metabolism, able to evaluate several performance indicators for both sustainability assessment and benchmark, comparing the impact of different management options for water demand and reuse.

Architecture and Environmental Sustainability: Critical Issues in Vernacular Kampong of Bena, Flores

2012 ◽  
Vol 253-255 ◽  
pp. 22-26 ◽  
Author(s):  
Martinus Susetyarto ◽  
E. Budihardjo ◽  
G. W. Pangarsa ◽  
G. Hardiman
Keyword(s):  
Environmental Sustainability ◽  
Energy Use ◽  
Assessment Tool ◽  
Negative Impact ◽  
Vernacular Architecture ◽  
Average Energy ◽  
Energy Performance ◽  
Sustainable Building ◽  
Rural And Urban Area ◽  
The Impact

The word of sustainability has acquired great importance due to the negative impact of various developments on the environment. The rapid developments in rural and urban area during the last decade have been accompanied by active construction which sometimes neglected the impact on the natural environment and human activities. One of the impacts of developments is occurred on the traditional heritage area, as the vernacular architecture of kampong of Bena, Flores, which has not been taken into consideration although the latter represents a rich resource for sustainable building practices. The study aims at examining these developments in the vernacular kampong of Bena, Flores by using an assessment tool that measures the performance of buildings in terms of their sustainability. This study attempts to: (a) develop a comprehensive definition of sustainability to suit the (indigenous) people needs; (b) classify sustainable building practices at local and regional levels; and (c) establish guidelines for future sustainable architecture. Results illustrate that average energy use in contemporary buildings is high and traditional buildings showed less sustainable measures in terms of energy features, energy performance and environmental features. Issues considered in the assessment of buildings such as energy use per square meter and CO2 emission are alarming. Traditional buildings in the vernacular kampongs of Flores were more sustainable than contemporary buildings.

scholarly journals The transition towards an environmental sustainability for Cryptocurrency mining

2021 ◽  
Vol 294 ◽  
pp. 03004
Author(s):  
Ioan Bitir-Istrate ◽  
Cristian Gheorghiu ◽  
Miruna Gheorghiu
Keyword(s):  
Environmental Sustainability ◽  
Performance Indicators ◽  
Graphics Processing Units ◽  
Action Plan ◽  
Electricity Consumption ◽  
Energy Performance ◽  
Consumption Index ◽  
New Type ◽  
Graphics Processing ◽  
Total Market

As Cryptocurrency becomes more and more popular so does its demand for mining rigs. At the end of 2020 there were approximately 5,392 different cryptocurrencies available with a total market capitalization of more than $201bn [1]. Cryptocurrencies are using decentralized, distributed systems in order to operate. The mining process involves solving cryptographic equations, which are ultimately used for ensuring encryption of the blockchain transactions, through the use of IT equipment - the most efficient way of doing it being by building mining farms which use Graphics Processing Units (GPUs). The Crypto farmers are rewarded with a share of the transaction they facilitate. As the Cryptocurrency market grows exponentially every year, so does its hunger for energy. For example, the Bitcoin Energy Consumption Index is evaluated to reach 77.782 TWh/year in 2021 [2], which, for comparison, is approximately 1.5 times larger than the entire electricity consumption of Romania in 2020 [3]. In this paper, the transition of Cryptocurrency mining processes towards environmental sustainability will be analysed. A Crypto-farm’s Energy Performance Indicators (EPI) and Power Quality Indices (PQI) will be evaluated and, with the use of dedicated software solutions, the authors will propose an action plan to minimize the environmental impact of the energy boundary and to maximize the EPI, thus maximizing the profitability of this new type of business.

Impact of roof shading on building energy performance in warm & humid climatic places of India

2020 ◽  
pp. 50-64
Author(s):  
Kuladeep Kumar Sadevi ◽  
Avlokita Agrawal
Keyword(s):  
Energy Consumption ◽  
Energy Conservation ◽  
Energy Performance ◽  
General Assumption ◽  
Climatic Conditions ◽  
Building Envelope ◽  
Passive Cooling ◽  
Base Case ◽  
U Value ◽  
The Impact

With the rise in awareness of energy efficient buildings and adoption of mandatory energy conservation codes across the globe, significant change is being observed in the way the buildings are designed. With the launch of Energy Conservation Building Code (ECBC) in India, climate responsive designs and passive cooling techniques are being explored increasingly in building designs. Of all the building envelope components, roof surface has been identified as the most significant with respect to the heat gain due to the incident solar radiation on buildings, especially in tropical climatic conditions. Since ECBC specifies stringent U-Values for roof assembly, use of insulating materials is becoming popular. Along with insulation, the shading of the roof is also observed to be an important strategy for improving thermal performance of the building, especially in Warm and humid climatic conditions. This study intends to assess the impact of roof shading on building’s energy performance in comparison to that of exposed roof with insulation. A typical office building with specific geometry and schedules has been identified as base case model for this study. This building is simulated using energy modelling software ‘Design Builder’ with base case parameters as prescribed in ECBC. Further, the same building has been simulated parametrically adjusting the amount of roof insulation and roof shading simultaneously. The overall energy consumption and the envelope performance of the top floor are extracted for analysis. The results indicate that the roof shading is an effective passive cooling strategy for both naturally ventilated and air conditioned buildings in Warm and humid climates of India. It is also observed that a fully shaded roof outperforms the insulated roof as per ECBC prescription. Provision of shading over roof reduces the annual energy consumption of building in case of both insulated and uninsulated roofs. However, the impact is higher for uninsulated roofs (U-Value of 3.933 W/m2K), being 4.18% as compared to 0.59% for insulated roofs (U-Value of 0.33 W/m2K).While the general assumption is that roof insulation helps in reducing the energy consumption in tropical buildings, it is observed to be the other way when insulation is provided with roof shading. It is due to restricted heat loss during night.

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