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Knowledge of energy performance indicators is essential to substantiate investment decisions in energy facilities. Energy audit is the procedure by which energy performance indicators can be assessed and identified measures to improve them. Considering the share and the potential to improve the efficiency of cogeneration sources for the production of thermal and electrical energy, the determination of their performance indicators based on energy audits is essential for achieving the goals of reducing energy consumption. This paper is a synthesis of the results obtained in performing the energy audit of a cogeneration source serving an industrial consumer. After describing the general framework, the justification of the concern and the presentation of the defining elements of characterization of the analyzed installation, the second part of the paper refers to the specificities of the applied complex energy balance model. Next, reference is made to the methodology for obtaining input quantities in energy balance models and mass balance sheets. The final part of the paper presents the results obtained, the values of the performance indicators, the measures for improving the energy efficiency and the general conclusions of the analysis.

The paper is about de level of electricity quality in the power network and at power consumers from an urban area. The analysis was done at the request of local electricity company. After highlighting the importance of preoccupations, electricity nonquality effects and regulatory framework, in the paper is presented the working methodology and results synthesis. The last part of the paper contains the conclusions of the study.

The paper contains a synthesis of the EU and Romania objectives and targets from the perspective of the principles of sustainable development. After evoking the overwhelming importance of achieving the vital goal Net Zero Emission - Greenhouse gas emissions, the second part of the paper presents the synthesis of EU legislation to achieve this objective. In chapter 3 of the paper, the National Strategies relevant to the enrollment in the objectives of the European Green Deal are evoked, and in the last part, the conclusions of the analysis are presented. [ABSTRACT FROM AUTHOR]

Energy efficiency improvement program for an organization that consumes a significant amount of energy is an important document, both through fulfillment of obligations and especially through utility of identified measures on improving EnEF. and economic. After evoking the regulatory framework and the usefulness of this concerns, the paper presents the working methodology in making identifications MIEnEF for a TC and the results for Turism Felix. [ABSTRACT FROM AUTHOR]

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The specific problems of the urban public transport system in the literature of the field are widely reflected; the main targets are to increase the efficiency, the quality of service and to reduce their impact on the environment. The electric driven transport is an alternative that may operate according to these targets. This article inscribes in the actual concerns dedicated to optimize the tram parks with which the urban public transport companies (UPTC) operate, using an optimizing criterion, which leads to an efficient and quality transport service. In this article, after evoking the importance of this concern, the mathematical model of optimization is elaborated in two variants (general and simplified). The proposed analysing model is for an applied UPTC that operates a mixed system (trams + buses), in real level of reliability conditions of trams. [ABSTRACT FROM AUTHOR]

The paper is part of traditional concerns of Energy Engineering Department from University of Oradea, aiming operational performances identification of equipment of power systems in collaboration with specialists who operates these systems. Based on previous analysis results, existing in databases which are updated yearly and using fundamental reliability indicators, this paper aims to highlight the 3D evolution of equipment operational availability, admitting a random variation of fundamental reliability and maintainability indicators of equipment. After justification of the need of these preoccupations, in the second part of paper, it is presented the mathematical model that stands at the base of 3D representation of operational availability. The third part contains the results referring to EEP from Bihor county PS. In the last part the conclusions are drawn. [ABSTRACT FROM AUTHOR]