Browsing International Conference on Environmental Engineering (ICEE) by Department "Pastatų energetikos katedra / Department of Building Energetics"
Now showing items 1-20 of 21
-
Air-source heat pump integration to support district heating decarbonization in Lithuanian climate
(13th International Conference “Environmental Engineering” (ICEE-2026), 2026)Many district heating (DH) systems in Eastern Europe continue to rely heavily on fossil fuels and ageing biomass boilers, limiting operational efficiency and slowing progress toward climate targets. As these systems face ... -
Analysis of possibilities to use phase change materials in heat exchangers-accumulators
(10th International Conference “Environmental Engineering” (ICEE-2017), 2017)Phase Change Materials (PCMs) are utilized in different engineering fields, such as thermal storage of building structures, such as domestic hot water, heating and cooling systems, electronic products, drying technology, ... -
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, ... -
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. ... -
The distribution of heavy metals in sediments in the lake Talksa of Lithuania
(8th International Conference “Environmental Engineering” (ICEE-2011), 2011)The intensification and development of industrial processes has harmful effects of human activities on nature and entire environment. Having performed the assessment of contamination of environmental components, especially ... -
Effect of open and closed operation modes on the performance of Phase change material based copper heat exchanger
(11th International Conference “Environmental Engineering” (ICEE-2020), 2020)Many studies related to latent heat thermal energy storage (LHTES) and performance of phase change materials (PCM) are focused on melting and solidification processes. Investigating and understanding the influence of various ... -
Energy and exergy analysis of a cylindrical hot water storage tank: experimental and CFD analysis
(11th International Conference “Environmental Engineering” (ICEE-2020), 2020)Active solar water heating systems typically include hot water storage tanks. The selection of the storage system strongly affects the performance of the entire system. This article presents a detailed analysis of a hot ... -
Energy conversion modes depending on the outdoor temperature for an air handling unit with a heat pump
(11th International Conference “Environmental Engineering” (ICEE-2020), 2020)Modern air handling units (AHU) are increasingly finding solutions in which the main energy transformers are an air heat pump (HP) and a heat recovery exchanger (HRE). The energy conversion modes of such devices are ... -
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 ... -
Experimental analysis of fin and tube heat exchanger in heating and cooling mode
(10th International Conference “Environmental Engineering” (ICEE-2017), 2017)The paper provides the results of experimental tests of a wavy fin and tube heat exchanger used to heat (cool) air in a ventilation system when the wavy fin of the heat exchanger is dry and wet. The experimental tests, ... -
Expressing the building energy systems thermodynamic seasonal efficiency
(10th International Conference “Environmental Engineering” (ICEE-2017), 2017)In order to reduce impact to environment, a qualitative approach of energy saving is global aspect that is included in various forms of CO2 emissions, primary energy limitations and benchmarks in EU and member countries ... -
Hydraulic configuration analysis of chiller-based cooling systems
(13th International Conference “Environmental Engineering” (ICEE-2026), 2026)Hydraulic imbalance in chilled water systems remains one of the most underestimated causes of reduced cooling capacity, degraded part-load efficiency, and excessive energy consumption in commercial buildings. Although modern ... -
Impact of internal heat gains on building’s energy performance
(10th International Conference “Environmental Engineering” (ICEE-2017), 2017)Internal heat gains from occupants, equipment and lighting contribute a significant proportion of the heat gains in an office space. Usage of ICT in offices is growing; on the other hand, their efficiency is also improving ... -
The influence of schedules of open office occupants’ presence on building’s energy demand
(11th International Conference “Environmental Engineering” (ICEE-2020), 2020)Many studies show, that there is a difference between actual and design energy consumption in energy efficient and sustainable buildings. As a rule, buildings consume more energy than it has been foreseen at the design ... -
Methodology of average speed enforcement systems spot selection on Lithuanian roads and its evaluation
(12th International Conference “Environmental Engineering” (ICEE-2023), 2023)Average speed enforcement systems were installed on Lithuanian roads in 1 September, 2018. The Lithuanian Road Administration document, created on 29 April, 2020 No. V-60 “Methodology for creating a priority order for the ... -
Passive house design aspects and analysis in Lithuania
(12th International Conference “Environmental Engineering” (ICEE-2023), 2023)The article provides an analysis of the environment for the development of energy-efficient single-family dwellings in Lithuania in the context of European Union (EU) requirements, Lithuanian (LT) regulations, and climate ... -
Renewable and non-renewable primary energy factors for Lithuanian A++ buildings’ heating
(12th International Conference “Environmental Engineering” (ICEE-2023), 2023)Lithuanian A++ buildings are highly energy-efficient, but their heating systems still require energy to operate, and the type of energy used can have a significant impact on the environment. By considering both non-renewable ... -
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 ... -
Simulation of thermal stratification in the heat storage for CHP plant
(8th International Conference “Environmental Engineering” (ICEE-2011), 2011)Thermal stratification phenomenon is successfully used to store and retrieve thermal energy from heat storages. The aim of this study is to compare two simulation models for describing thermal stratification in the heat ... -
Supermarket refrigeration systems in cold-climate regions: a comprehensive review of waste heat recovery potential, compatibility with district heating network integration, and forward-looking free-cooling-enabled operation
(13th International Conference “Environmental Engineering” (ICEE-2026), 2026)Supermarkets are among the most refrigeration-intensive commercial buildings, converting a large share of electricity consumption into rejected heat at condensers or gas coolers. In cold climates, low ambient temperatur ...