Now showing items 1-11 of 11

    • Analysis of possibilities to use phase change materials in heat exchangers-accumulators 

      Pakalka, Saulius; Valančius, Kęstutis; Čiuprinskas, Kęstutis; Pum, Dominik; Hinteregger, Markus (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, ...
    • Effect of open and closed operation modes on the performance of Phase change material based copper heat exchanger 

      Pakalka, Saulius; Valančius, Kęstutis; Damonskis, Matas (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 

      Kropas, Tomas; Streckienė, Giedrė (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 

      Frik, Anton; Martinaitis, Vytautas; Bielskus, Juozas (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 ...
    • Experimental analysis of fin and tube heat exchanger in heating and cooling mode 

      Rubcov, Artur; Paulauskaitė, Sabina; Misevičiūtė, Violeta (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 

      Januševičius, Karolis; Bielskus, Juozas; Martinaitis, Vytautas; Streckienė, Giedrė; Rimdžius, Dovydas (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 ...
    • Impact of internal heat gains on building’s energy performance 

      Lapinskienė, Vilūnė; Motuzienė, Violeta; Džiugaitė-Tumėnienė, Rasa; Mikučionienė, Rūta (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 

      Bielskus, Jonas; Motuzienė, Violeta (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 

      Gavėnienė, Laura; Matusevičius, Ernestas; Čygas, Donatas; Jateikienė, Laura; Vorobjovas, Viktoras; Čiuprinskas, Kęstutis (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 

      Adomaitis, Rimvydas; Valančius, Kęstutis (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 

      Grinevičiūtė, Monika; Valančius, Kęstutis (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 ...