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Badea A.,Polytechnic University of Bucharest | Badea A.,Academy of Romanian Scientists | Baracu T.,Academy of Romanian Scientists | Dinca C.,Academy of Romanian Scientists | And 3 more authors.
Energy and Buildings | Year: 2014

The objective of this article is to create a mathematical model based on the analysis of the life-cycle cost of a passive house, including its technical design variations. In this study, we analyzed 14 types of houses derived from the design of the passive house POLITEHNICA; every house was differentiated by the type of renewable solution used (EAHX, GHP, solar collectors, PV panels) or by the insulation thickness, and it was compared with H12, a standard house with classical HVAC systems and a thermal insulation of 100 mm. The houses were compared according to criteria of economic performance throughout their life cycle. It was found that the additional investment in an energy efficient house can be recovered in 16-26 years, 9-16 years and 16-28 years if the replaced HVAC system is classical gas fuelled, electric or district distribution. A sensitivity analysis is performed which revealed the influence of the price of electricity and PV panels. The classification system made the decision-making process easier for a possible investment in a solution. This classification system showed that the first three recommended solutions for investment are the houses H14, H17 and H20. © 2014 Elsevier B.V. All rights reserved. Source

Nisulescu G.C.,Polytechnic University of Timisoara | Ionel I.,Polytechnic University of Timisoara | Malan B.,Polytechnic University of Timisoara | Dobrin M.,Institute for Studies and Power Engineering ISPE
Revista de Chimie | Year: 2012

Sulfur dioxide SO 2 is one of the most aggressive pollutant and plays an important role between the gases for air pollution monitoring. Sulphur oxides haue a significant impact on human health and are responsible for fauna and flora modifications, as well are considered to be precursor for the acid rain and other atmospheric effects toxic effects on ecosystems. Anthropogenic SO 2 is almost exclusively formed during combustion of fossil fuels with sulfur content, relevant and most commonly used is the S containing coal. The paper presents results of experiments performed with standard methods and, in comparison, applying last generation methods such as the UV cameras. Scope of this paper is comparing these results with each other and to demonstrate their effectiveness. Based on the Camera UV original program developed on the measured values, the conclusion driven from the study is that the SO 2 concentration data delivered by remote sensing using UV cameras are appropriate to be used for stack emission evaluations. The developed calculation algorithm is based on the phenomenon of absorption. Source

Pietzner K.,Wuppertal Institute for Climate | Schumann D.,Julich Research Center | Tvedt S.D.,Sintef | Tvedt S.D.,Norwegian University of Science and Technology | And 24 more authors.
Energy Procedia | Year: 2011

The representative survey studies provide a comprehensive database on the public awareness and perception of CCS in six selected European countries. Our results provide insights into the public understanding and knowledge of energy related issues and CCS topics. The embedded experimental research provides insights into how information affects CCS perceptions. The results discuss implications for CCS communication methods. © 2011 Published by Elsevier Ltd. Source

Dobrin M.,Institute for Studies and Power Engineering ISPE | Tomescu C.E.,Institute for Studies and Power Engineering ISPE | Ionel I.,Polytechnic University of Timisoara | Florescu C.,Polytechnic University of Timisoara
Revista de Chimie | Year: 2012

The water is one of the most important fluids used especially for different industrial processes. In order to be utilized, the water has to be treated. The most used technologies for water treatment are the technology using ion exchangers and the technology using reverse osmosis. The article presents a critical comparative study of the two mentioned technologies, based on the main features and steps recommended, and their application for the water circuit within a thermal power plant.. Source

Daamen D.D.L.,Leiden University | Terwel B.W.,Leiden University | Ter Mors E.,Leiden University | Reiner D.M.,University of Cambridge | And 24 more authors.
Energy Procedia | Year: 2011

Previous research has shown that public knowledge and awareness of carbon dioxide capture and storage (CCS) is very limited. As a result, traditional surveys designed to collect public opinions about CCS do in fact assess so-called pseudo opinions. Pseudo-opinions are of very low quality because they are mostly unstable and inconsistent. Therefore, they are not predictive for actual and future public support for or opposition against CCS. As compared to pseudo opinions, opinions expressed after the public has been provided with factual information about CCS are likely to be of higher quality. Focus group discussions and Information-Choice Questionnaires (ICQs) are two research techniques frequently used in the CCS literature that aim to collect such informed public opinions. In this study, we examined which of these two research technique leads to the highest quality opinions (i.e., to opinions that are consistent, stable, and that people are confident about). Our results showed that ICQs yielded higher-quality opinions than focus group discussions. Practical implications and recommendations are discussed. © 2011 Published by Elsevier Ltd. Source

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