Results 21 to 30 of about 179,443 (300)

Comparison of air distribution systems in ice rink arena ventilation

open access: yesMokslas: Lietuvos Ateitis, 2013
The paper presents the requirements and functions of ventilation in ice rink arenas and discusses difficulties and problems of ventilation in such objects.
Agnieszka Stobiecka   +2 more
doaj   +1 more source

Particularities of determining primary energy needs for building materials/Pirminės energijos poreikių statybinėms medžiagoms nustatymo ypatumai

open access: yesJournal of Civil Engineering and Management, 1997
Civil buildings in Lithuania consume one half of final energy or about 70% of heat generated in thermoelectric and heat power stations. However, energy is necessary not only for exploitation but also for the creation of buildings: manufacture of building
Kęstutis Čiuprinskas   +1 more
doaj   +1 more source

Causes of hot and cold water system failure [PDF]

open access: yesMATEC Web of Conferences, 2019
The paper presents causes of the failures of hot and cold water systems. Most often they occur in the case of installations built with metal pipes and result from the use of improper materials and the adoption of wrong solutions.
Szaflik Władysław
doaj   +1 more source

Correction of a designed building's heat balance according to its real heat consumption

open access: yesJournal of Civil Engineering and Management, 2003
One of the most important issues in the implementation of energy saving measures is a proper evaluation of possible energy savings. If energy savings are overestimated in an energy audit (EA), a situation may occur where after the renovation, the ...
KÄ™stutis ÄŒiuprinskas   +1 more
doaj   +1 more source

Numerical simulation of factors influencing the efficiency of a horizontal gas filter

open access: yesYou-qi chuyun, 2021
The performance of the filter elements configured at the gas station and the user entrance changes dynamically with the service conditions. If the filter element is not cleaned and replaced in time, the gas passing efficiency will be affected seriously ...
Peng XU   +4 more
doaj   +1 more source

Passive cooling of buildings with phase change materials using whole-building energy simulation tools: A review [PDF]

open access: yes, 2017
Buildings contribute to climate change by consuming a considerable amount of energy to provide thermal comfort for occupants. Cooling energy demands are expected to increase substantially in the world. On this basis, technologies and techniques providing
Cabeza, Luisa F.   +3 more
core   +2 more sources

Directional sensitivity of differential pressure sensors of gas velocity used in manual gravimetric measurements of dust emissions from stationary sources / Czułość kierunkowa różnicowo-ciśnieniowych czujników prędkości gazu stosowanych w manualnych pomiarach grawimetrycznych emisji zanieczyszczeń pyłowych ze źródeł stacjonarnych

open access: yesArchives of Environmental Protection, 2015
Na potrzeby określania emisji zanieczyszczeń pyłowych do atmosfery z przemysłowych instalacji technologicznych często wykonywane są manualne pomiary rozkładu prędkości gazu w kanałach instalacji gazów odlotowych przy pomocy układów z różnicowo ...
Szulikowski Jerzy, Kateusz Przemysław
doaj   +1 more source

Progress of research on leakage diffusion of gas pipelines

open access: yesYou-qi chuyun, 2022
Gas pipelines in China have gradually entered the stage of frequent accidents, and gas leakage will increase the safety risk of pipeline operation, even resulting in personnel casualties.
Peng XU   +4 more
doaj   +1 more source

Optimization of the power and control parameters of hvac systems in condition of the unsteady duties/Šildymo, vėdinimo ir oro kondicionavimo sistemų galios ir valdymo parametrų optimizavimas nestacionaraus režimo sąlygomis

open access: yesJournal of Civil Engineering and Management, 1998
Kaip žinia, pagrindinis šildymo, vėdinimo ir oro kondicionavimo sistemų—mikroklimato kondicionavimo sistemų (MKS)—specialistų uždavinys yra reikiamų mikroklimato parametrų užtikrinimas patalpos darbo zonoje minimaliomis materialinėmis ir energetinėmis ...
Natalija Parfentjeva   +2 more
doaj   +1 more source

System-level key performance indicators for building performance evaluation [PDF]

open access: yes, 2020
Quantifying building energy performance through the development and use of key performance indicators (KPIs) is an essential step in achieving energy saving goals in both new and existing buildings. Current methods used to evaluate improvements, however,
Hong, T, Lee, SH, Li, H, Sofos, M
core  

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