Expectations, reality and perspectives in using bim for the green building design

In the late 1970s when the first programs for building energy consumption simulation appeared, architectural practice was based on paper documentation and 2D drafting programs were considered as state of the art technologies. The requirement for 3D building models for computer-based energy simulation minimized the use of this technology in everyday practice. With the appearance of BIM applications that enable creation of information rich 3D building models, everyone expected that this technology can easily provide all data necessary for energy consumption simulation. Today, the market is full of different BIM related applications that are advertised as solutions for the green building design. The paper gives an overview of energy consumption simulation tools and their connection to two BIM applications - ArchiCAD and Revit and demonstrates that recent development of both technologies does not fully meet expectations. The paper indicates means to avoid overoptimistic expectations from software tools that can help designers to achieve better comprehension of the real merits that BIM can bring to green building design. The paper addresses usability of using BIM for sustainable refurbishment. The paper concludes with the analysis of the Semantic Web technologies which can contribute to a better understanding of simulation results, and can provide more information about energy efficiency of the components used in BIM applications' libraries

Bim: Promises and reality

The building information modeling - BIM is a technology developed toward creation of computer based information model that encompasses whole building lifecycle. Toward that goal a number of information technology standards have been developed that enable different professions in AEC to cooperatively develop electronic building model. The paper gives overview of essential technologies, discusses their intended purpose, and gives outline of the currently achieved functionality

Expectations, reality and perspectives in using bim for the green building design

In the late 1970s when the first programs for building energy consumption simulation appeared, architectural practice was based on paper documentation and 2D drafting programs were considered as state of the art technologies. The requirement for 3D building models for computer-based energy simulation minimized the use of this technology in everyday practice. With the appearance of BIM applications that enable creation of information rich 3D building models, everyone expected that this technology can easily provide all data necessary for energy consumption simulation. Today, the market is full of different BIM related applications that are advertised as solutions for the green building design. The paper gives an overview of energy consumption simulation tools and their connection to two BIM applications - ArchiCAD and Revit and demonstrates that recent development of both technologies does not fully meet expectations. The paper indicates means to avoid overoptimistic expectations from software tools that can help designers to achieve better comprehension of the real merits that BIM can bring to green building design. The paper addresses usability of using BIM for sustainable refurbishment. The paper concludes with the analysis of the Semantic Web technologies which can contribute to a better understanding of simulation results, and can provide more information about energy efficiency of the components used in BIM applications' libraries

Bim: Promises and reality

The building information modeling - BIM is a technology developed toward creation of computer based information model that encompasses whole building lifecycle. Toward that goal a number of information technology standards have been developed that enable different professions in AEC to cooperatively develop electronic building model. The paper gives overview of essential technologies, discusses their intended purpose, and gives outline of the currently achieved functionality

Nenjutnovski fluidi u inzenjerskoj praksi

U procesnoj industriji (naftnoj, hemijskoj, prehrambenoj...) često je neophodno tretirati fluide koji se ne ponašaju kao idealni (njutnovski) fluidi. S obzirom da je kod takvih fluida (nenjutnovskih) odnos između intenziteta tangencijalnog napona i odgovarajuće brzine deformacije nelinearan, poznavanje navedene zavisnosti je od suštinskog značaja prilikom određivanja profila brzina strujanja u cevima i kanalima, njihovog optimalnog dimenzionisanja i izbora odgovarajuće strujne mašine (pumpe). U procesnoj industriji (naftnoj, hemijskoj, prehrambenoj...) često je neophodno tretirati fluide koji se ne ponašaju kao idealni (njutnovski) fluidi. S obzirom da je kod takvih fluida (nenjutnovskih) odnos između intenziteta tangencijalnog napona i odgovarajuće brzine deformacije nelinearan, poznavanje navedene zavisnosti je od suštinskog značaja prilikom određivanja profila brzina strujanja u cevima i kanalima, njihovog optimalnog dimenzionisanja i izbora odgovarajuće strujne mašine (pumpe)

Techno-economic evaluation of residue exhaustion in batch rectification ethanol production plant

This paper presents the techno-economic optimization of batch plant for production of rectified alcohol based on the concentration of ethanol in residue. The aim of the analysis was to determine the extent to which it is economically profitable to exhaust the residual liquid in boiler. The "profit production" criterion is used for calculations

Welding safety by using a new model of welders' recertification in the oil and gas industry

The paper presents a solution applied for determining the quality of the welding process in oil and gas industrial plants, as well as reliable verification of professional qualification of welding personnel. By applying the solution, welded joint quality can increase and thus the safety (especially in the field of high-pressure gas plants) and the reliability of the process in oil and gas-, petrochemical and nuclear plants, as a whole. The paper analyses safety aspects in the welding process, depending on the competence in welding and an appropriate qualification, taking into account that high levels of skill and competence are required where safety-critical items are fabricated. The results in the application of the new recertification model are presented and analysed, and it is emphasized that the areas of application of the new solution are wide, mainly applied in the oil and gas-, petrochemical industry, and the construction of nuclear plants. The application of the new model of Welders Recertification enables project savings, but also safety at work since the employer has a constant insight into the qualifications and welding capabilities of each welder

Welding safety by using a new model of welders' recertification in the oil and gas industry

The paper presents a solution applied for determining the quality of the welding process in oil and gas industrial plants, as well as reliable verification of professional qualification of welding personnel. By applying the solution, welded joint quality can increase and thus the safety (especially in the field of high-pressure gas plants) and the reliability of the process in oil and gas-, petrochemical and nuclear plants, as a whole. The paper analyses safety aspects in the welding process, depending on the competence in welding and an appropriate qualification, taking into account that high levels of skill and competence are required where safety-critical items are fabricated. The results in the application of the new recertification model are presented and analysed, and it is emphasized that the areas of application of the new solution are wide, mainly applied in the oil and gas-, petrochemical industry, and the construction of nuclear plants. The application of the new model of Welders Recertification enables project savings, but also safety at work since the employer has a constant insight into the qualifications and welding capabilities of each welder

Analysis of the estimated remaining service life of gas rectification columns

Gas rectification columns are process apparatuses which are very important part of each onshore plant. Sudden failure of these types of columns causes huge daily losses, while fluid leakage can be very dangerous for the people and hazardous for the environment. For that reason, a regular and correct examination of the column is of great importance for the continual process of leading. Together with the detailed examination of the column, a risk-based inspection was applied to maximize savings, both material, time, and costs. The expected remaining service life of rectification columns was also analyzed, while the corrosion rates were calculated according to the various international standards. The minimum required column wall thickness was calculated according to the most commonly used international standard and the obtained difference was analyzed. Detailed analysis of the total risks of the column due to potential failure is presented

Analysis of the estimated remaining service life of gas rectification columns

Gas rectification columns are process apparatuses which are very important part of each onshore plant. Sudden failure of these types of columns causes huge daily losses, while fluid leakage can be very dangerous for the people and hazardous for the environment. For that reason, a regular and correct examination of the column is of great importance for the continual process of leading. Together with the detailed examination of the column, a risk-based inspection was applied to maximize savings, both material, time, and costs. The expected remaining service life of rectification columns was also analyzed, while the corrosion rates were calculated according to the various international standards. The minimum required column wall thickness was calculated according to the most commonly used international standard and the obtained difference was analyzed. Detailed analysis of the total risks of the column due to potential failure is presented