8th International Conference “Environmental Engineering” (ICEE-2011): Recent submissions
Now showing items 1-20 of 141
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The house plan drawing and heating system automated design
(8th International Conference “Environmental Engineering” (ICEE-2011), 2011)The heating system design is directly related to the building’s plan drawings. The article reviews the possibility of programming a way to find the necessary information directly from the drawing and using it for designing ... -
The mathematical modelling of the absorption refrigeration machines used in energy systems
(8th International Conference “Environmental Engineering” (ICEE-2011), 2011)In the paper the authors present the possible usage of absorption refrigeration machines in air-conditioning systems and tri- and cogeneration processes. One-stage and multi-stage absorption refrigeration cycles are ... -
Temperature efficiency of rotary heat recovery units in ventilation and air conditioning
(8th International Conference “Environmental Engineering” (ICEE-2011), 2011)The article focuses on processes in rotary heat recovery ventilation and air conditioning units. Here we offer approximated engineering formula of thermal efficiency based on dimensionless parameters and further analysis ... -
Energy efficient building design legal basis
(8th International Conference “Environmental Engineering” (ICEE-2011), 2011)Nowadays there are passed many EU directives and documents aimed to stimulate development of renewable energy resources and reduction of energy demand in living houses. On another hand, energy efficient buildings in legal ... -
Selection of the efficient glazing for low energy office building
(8th International Conference “Environmental Engineering” (ICEE-2011), 2011)Building’s energy efficiency is already significantly determined at an early design stage of an architectural constructive part. It is important already at that stage to select in terms of energy and daylighting effective ... -
Analysis of ventilation system’s heat exchangers integration possibilities for heating season
(8th International Conference “Environmental Engineering” (ICEE-2011), 2011)Ventilation systems are known as intensive energy used building engineering system. Heat exchangers are the main equipments used for energy transformation in building engineering systems as well as in ventilation systems. ... -
Analysis of annual power consumption by central air conditioning systems using the climatic data stochastic statistics model
(8th International Conference “Environmental Engineering” (ICEE-2011), 2011)The purpose of the offered research is creation of a method to estimate annual power consumption by central air conditioning systems (ACS), using modern computer possibilities. The developed method is aimed at determining ... -
The analysis of the efficiency of passive energy saving measures in office building
(8th International Conference “Environmental Engineering” (ICEE-2011), 2011)The European Union is steadily tightening requirements on the energy performance of buildings. This enforces to take new measures to improve the indicators of energy both of existing and newly constructed buildings. Therefore, ... -
The role of district heating and cooling technologies in energy provisions for building sector: challenges and perspectives
(8th International Conference “Environmental Engineering” (ICEE-2011), 2011)District heating and cooling technology finally is recognized at European level as promising tool for implementing energy and environment policy goals. At the same time new approach towards traditional concept of DH systems ... -
Energy load forecasting model for integrated urban energy planning
(8th International Conference “Environmental Engineering” (ICEE-2011), 2011)Nearly 75 % of the world’s energy is consumed in urban areas and it is expected that together with the cities expansion it will grow rapidly in the future. Therefore the energy management in the urban areas is crucial in ... -
Numerical simulation of a district heating system with emphases on transient temperature behaviour
(8th International Conference “Environmental Engineering” (ICEE-2011), 2011)Numerical simulation of a district heating system was performed with emphases on transient temperature behaviour. The distortion of transient temperature throughout a heating system network was simulated using modelling approach ... -
Energy use in the life cycle of a low-energy building
(8th International Conference “Environmental Engineering” (ICEE-2011), 2011)Nowadays a new generation building has a variety of definitions, namely, low energy building, passive house, nearly zero energy building. These definitions refer to the building with a very high energy performance and a ... -
The small-tonnage oleo-chemical plant processing wastewater treatment and agro-utilization
(8th International Conference “Environmental Engineering” (ICEE-2011), 2011)The paper presents a developed method of pretreating wastewaters coming from small-tonnage oleochemical production and also the research results on variability of concentrations of nickel (Ni) in the soil irrigated and ... -
Blockhouse renovation: some insights from pilot survey of households in Kaunas city
(8th International Conference “Environmental Engineering” (ICEE-2011), 2011)Growing demand for energy is one of the main problems causing environmental burden. As households are one of the largest energy end-users, increasing energy efficiency in the household sector can contribute significantly ... -
Exergoeconomic evaluation of small scale CHP systems
(8th International Conference “Environmental Engineering” (ICEE-2011), 2011)Exergy and exergoeconomic analysis of small scale CHP systems: micro gas turbine (GT) and micro Organic Rankine Cycle (ORC) CHP system has been conducted. Thermodynamic cycles have been simulated using a modelling tool ... -
The concept of rainwater managment in Košice city
(8th International Conference “Environmental Engineering” (ICEE-2011), 2011)In many parts of Europe water use is unsustainable and therefore is desirable to provide recommendations for a new approach to managing water resources in practise. Overexploitation has a heavy impact on the quality and ... -
Flood risk assessment in the most endangered watersheds in Slovak Republic
(8th International Conference “Environmental Engineering” (ICEE-2011), 2011)In recent years, the growth of population and diffusion of settlements over flood vulnerable areas have increased the impact of the floods worldwide. Natural disasters such as floods have constituted a major problem in ... -
Municipal effluents toxicity evaluation using higher terrestrial, aquatic plants, and invertebrates
(8th International Conference “Environmental Engineering” (ICEE-2011), 2011)The toxicity of Vilnius municipal effluents was evaluated using the bioassays with aquatic invertebrates and terrestrial and aquatic higher plants. Toxicity tests were performed on samples of untreated and biologically ... -
Rainwater conservation in the Czech Republic
(8th International Conference “Environmental Engineering” (ICEE-2011), 2011)In the Czech Republic valid legislation (268/2009), (501/2006) demands a reduction of rainwater outflow from real estates. At present in the Czech Republic regulations for rainwater harvesting and infiltration are finalizing. ... -
Assessment of the impact of anthropogenic activities on the flow of the river Vilnia basin
(8th International Conference “Environmental Engineering” (ICEE-2011), 2011)River flow is one of the most important links of the water circulation in the nature which describes general water yield and potential water resources of a river basin. Since the range of the flow change is best illustrated ...