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1
Content available remote Requirement to the fresh air in the congregation room
Kapalo P., Sedlakova A., Voznyak O., Tazky L.
Czasopismo Inżynierii Lądowej, Środowiska i Architektury / Journal of Civil Engineering, Environment and Architecture
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2015
|
z. 62, nr 4
195--200
EN
We have more kinds of congregation rooms. When building of these spaces must to supervise, among other the requirements also the quality of the indoor air should be considered. In our article we are engaged analysis of ventilation in church of the 13th century. The aim is analyzing of produce of pollutant emissions from persons in the room. One of measurable the pollutant is carbon dioxide, which is produced by persons. Beside the respiration, the person produces other pollutants, such as odor and others. On the basis of experimental measurements the concentration of carbon dioxide produced by person, currently we know calculate how much air exchange is required for the room. The concentration of carbon dioxide has be smaller how 1,000 ppm and maximum up to 1,500 ppm. Already above the value of 1,000 ppm causes to decrease the concentration to perception for people. The aim of the paper is to determine the methodology for calculating the intensity of ventilation rate in the room. It is need to maintain the required air quality. Calculated ventilation rate should optimize investment and operating costs of ventilation equipment. In the work there is carried out analysis of calculation methods to determine the ventilation rate. It is processed the methodology for calculating the ventilation rate of room, there are used the measured values of concentrations of carbon dioxide. Values of concentrations of carbon dioxide and ventilation rate there are verified by experimental measurements. The methodology is selected for calculating ventilation rate applicable in to Slovakia.
PL
Budowanych jest coraz więcej kościołów parafialnych. Wznosząc te obiekty należy przestrzegać wymogi dotyczące jakość powietrza wewnątrz nich. W artykule zajęto się analizą wentylacji w kościele z XIII wieku. Celem analizy była emisja zanieczyszczeń powodowana przez osoby będące w kościele. Jednym z mierzonych zanieczyszczeń był dwutlenek węgla wydychany przez osoby. Obok oddychania, osoba produkuje inne zanieczyszczenia, jak np. zapach. Na podstawie pomiarów doświadczalny poznano stężenie dwutlenku węgla wytwarzanego przez osobę, i jest znana konieczna objętość wymiany powietrza w kościele. Stężenie dwutlenku węgla powinna być mniejszym niż 1,000 ppm, a maksymalna do 1,500 ppm., ponieważ ponad wartością z 1,000 ppm skutkuje zmniejszenie koncentracji. Celem artykułu jest ustalenie metodologii dla obliczania intensywności wentylacji pomieszczenia, do uzyskania wymaganego stopnia czystości powietrza. Oszacowany wskaźnik wentylacji powinien optymalizować inwestycję i koszty eksploatacyjne wentylacji. Przedstawiono również analizę metod obliczania wskaźnika wentylacji dopasowanego do warunków obowiązujących na Słowacji.
2
Content available remote Heat load elimination by using displacement ventilation in a classroom
Kovac M., Knizova K., Sedlakova A.
Czasopismo Techniczne. Budownictwo
|
2014
|
R. 111, z. 3-B
229--236
EN
The target of this contribution is to know if we can use displacement ventilation for the so-called free cooling of a room. What flow rate of air do we need in order to sufficiently reduce the thermal loads in the classroom? We search for the answer to this question by using CFD tools. We only use air from the exterior without any cooling system.
PL
Celem pracy jest analiza zastosowania wentylacji wyporowej w tzw. swobodnym chłodzeniu pomieszczenia. Jaka ilość wymian powietrza jest wymagana, aby wystarczająco zmniejszyć obciążenia termiczne w klasie? Szukamy odpowiedzi na to pytanie za pomocą narzędzi CFD. Używamy jedynie powietrza zewnętrznego bez układu chłodzącego.
3
Content available The lower structure for energy efficient buildings
Sedlakova A., Majdlen P., Tazky L.
Budownictwo o Zoptymalizowanym Potencjale Energetycznym
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2014
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nr 1(13)
108--115
EN
External constructions of buildings provide their protection from external influences. These constructions ought to create optimal comfort of interior environment in winter as well as in summer. It has been shown in practice that the largest number of breakdowns occurs in external constructions. The external constructions of walls, roofs and floors too present a big area of problems in design of new and reconstructed buildings respectively. Heat losses of buildings through external constructions - roof, external walls, floor on the ground - are not negligible. It is therefore important to pay more attention to these constructions. Basementless buildings stepped directly on the ground are in direct interaction with subgrade and its thermal state. An amount of heat primarily destined for creation of thermal comfort in the interior escapes from foundational construction and floor on the ground to the cooler subgrade. The outgoing heat represents heat losses, which unfavourably affect the overall energetic effectiveness of the building. The heat losses represent approximately 15 to 20% of the overall heat losses of the building. This number is a clear antecedent of need for isolation and minimalization of heat flow from the building to the subgrade.
PL
Przedmiotem niniejszej pracy było wskazanie skutecznych sposobów eliminacji mostków termicznych w obszarze przyziemia wraz z określeniem optymalnej głębokości hz posadowienia budynku. Przedstawiono usprawnienia w części nadziemnej, modelowanie i realizację detali konstrukcyjnych w obszarze przyziemia poprzez odpowiedni wybór lokalizacji budynku, rodzaju połączenia oraz rodzaju i grubości izolacji termicznej.
4
Content available Energy and environmental profile of low – energy house – case study
Vilcekova S., Sedlakova A., Kridlova Burdova E., Geletka V.
Budownictwo o Zoptymalizowanym Potencjale Energetycznym
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2013
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nr 2(12)
137--147
EN
Integrated building design should take into account environmental, social and economic dimensions of sustainability. Building design from energy performance ranges from architectural design to the application of technologies for energy conservation. Many applications are focused on insulation of facades, roofs and floors to those that are used systems for renewable energy sources. The aim of the innovations is not only energy saving but also reduces costs and preserves natural resources. One key element of low-energy building design is using the basic form and enclosure of a building to save energy while enhancing occupant comfort. Besides energy need for building operation the significant part of the total energy is energy used in the extraction, processing and transportation of materials used in buildings. This study is aimed to analyze the building materials and structures in terms of embodied environmental impacts and monitoring of physical factors of indoor environment. The paper deals with evaluation of environmental and energy indicators in selected low-energy family house and its optimization in order to reduction of environmental impacts.
PL
Zintegrowany projekt budowlany powinien uwzględniać środowiskowe, społeczne i ekonomiczne aspekty zrównoważonego rozwoju. Projektowanie budynków w zakresie efektywności energetycznej obejmuje różne aspekty, począwszy od projektu architektonicznego aż po wykorzystanie technologii związanych z oszczędzaniem energii. Wiele uwagi przywiązuje się do prawidłowej izolacji ścian, dachów i podłóg aż po zastosowanie systemów wykorzystujących odnawialne źródła energii. Celem innowacji jest nie tylko oszczędzanie energii, ale również obniżenie kosztów i ochrona zasobów naturalnych. Niniejsze opracowanie koncentruje się na analizie materiałów budowlanych i konstrukcji w odniesieniu ich do oddziaływania na środowisko oraz na monitorowaniu fizycznych parametrów środowiska wewnętrznego. W pracy przedstawiono ocenę wskaźników energetycznych i środowiskowych w wybranym budynku o niskim zapotrzebowaniu na energię i ich optymalizację w celu zmniejszenia oddziaływania na środowisko.
5
Content available Assessment of underfloor ventilation of historic buildings using ANSYS CFX
Rencko T., Sedlakova A.
Budownictwo o Zoptymalizowanym Potencjale Energetycznym
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2013
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nr 1(11)
98--106
EN
Concepts of remedial treatments of historic buildings using ventilated floors, with a few exceptions, are with considerable popularity preferred by the representatives of monument protection. The fact that they require small interventions in the masonry is of great benefit for compliance with the methodology of cultural heritage protection, as is the fact that such interventions do not compromise the structural analysis of buildings. These concepts have gained great popularity also because they can be considered kind of a "return" to historical example. With these technologies we return to the methods and principles that the ancient Egyptians were already familiar with. The paradox is that these methods are used for many centuries, until today they are only proposed on the basis of empiricism. There is no proven relationship and calculation nor any literature that would address the airflow in floors, ventilation ducts and galleries around the base building construction. The remaining problem is the draft of air cavities in general. The exact calculation of airflow in the underfloor cavity has not yet been formulated. To assessment the airflow in the air cavity the recently often used CFD simulations can be employed. Using simulation, respective design cycles, which shall be ultimately verified by laboratory experiments and also by in situ measurements, may be accelerated.
PL
Celem artykułu jest zwrócenie uwagi na możliwości zastosowania komputerowych programów symulacyjnych (CFD) do oceny przepływu powietrza we wnękach podłogowych. Przy zastosowaniu prostych modeli geometrycznych można potwierdzić lub odrzucić proponowane rozwiązanie.
6
Content available Parametric analysis to predict annual heating demand of single-storey house
Geletka V., Sedlakova A.
Budownictwo o Zoptymalizowanym Potencjale Energetycznym
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2012
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nr 2(10)
22--28
EN
The quality of most buildings may be affected during the initial phase of architectural design. Therefore, it is important to optimize input parameters, which significantly influence energy efficiency. In principle, it is possible to speak of a deterministic approach, which considers input parameters to be fixed, or a stochastic approach, which takes a wider set of input parameters into account. A reference building is evaluated in terms of energy performance, where input parameters are changed in order to determine a correlation coefficient. Regressions were written to express the impact architectural design has on energy performance.
PL
W pracy przedstawiono analizę wpływu wybranych rozwiązań architektonicznych i materiałowo-konstrukcyjnych na wartość rocznego zapotrzebowania na ciepło do ogrzewania jednokondygnacyjnych budynków mieszkalnych (typu bungalow). Analizie poddano współczynnik kształtu, izolacyjność cieplną przegród - współczynnik przenikania ciepła, orientację w stosunku do stron świata, mostki termiczne, wielkość przeszklenia budynków, zyski ciepła od promieniowania słonecznego. Przedstawiono histogramy oraz współczynniki regresji.
7
Content available Design Concept of Building Constructions, Environmental Assessment and Material Solutions
Sedlakova A., Vojtus J., Kridlova Burdova E.
Budownictwo o Zoptymalizowanym Potencjale Energetycznym
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2012
|
nr 1(9)
104--110
EN
Designing a building requires an interplay of architecture and design parameters to create an artificial material environment. Each architectural and engineering design has direct impact on the indoor climate environment and is a key determinant of operational performance of buildings throughout their life. The following paper presents one important component of the process of reducing the operating energy performance of buildings within a designated period of their exploitation as packaging design of buildings and their physical and technical characteristics, which are intended design concept and building material solutions.
PL
Projektowanie budynku wymaga współgrania rozwiązań architektonicznych z wymaganymi parametrami projektowymi w celu stworzenia optymalnego środowiska wnętrz. Każde architektoniczne i konstrukcyjne rozwiązanie ma bezpośredni wpływ na mikroklimat oraz kluczowe znaczenie dla kształtowania się parametrów eksploatacyjnych budynku w cyklu jego życia. Istotnym elementem w procesie redukcji zużycia energii w planowanym okresie eksploatacji jest wybór odpowiednich rozwiązań materiałowo-konstrukcyjnych.
8
Content available remote Reconstructions of historical buildings from energy point of view-ventilated air cavities below ground
Rencko T., Sedlakova A.
Budownictwo o Zoptymalizowanym Potencjale Energetycznym
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2011
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nr (8)
212--219
EN
Recently, more and more often total reconstructions of historical buildings that have not been administered for years by anyone, have taken place. Their stage neither meets the current user standards, nor the technical ones. On the other hand, this period is also a period of great interest in using the largely deprived buildings for commercial purposes.
9
Content available remote Energy consumption conditioned by shapes of buildings
Geletka V., Sedlakova A.
Budownictwo o Zoptymalizowanym Potencjale Energetycznym
|
2011
|
nr (8)
46--53
EN
In accordance with long-term strategic objectives of reducing emissions and improving energy efficiency, adoption of the European Parliament on May 18, 2010 and the adoption of 2010/31/EU raised the commitment by 2020 to reduce total greenhouse gas emissions by et least 20%. The Directive requires Member state to design all new buildings with nearly zero until December 31 2020. Aims of Directive can be applied in conjunction excellent thermal parameters of buildings envelope design energy-efficient buildings and shape solutions. For optimal design EEB has a major impact outside geometry, i.e. compact of shape and surface topography. After construction of the EEB is a possible number of parameters to modify, but the shape that has been proposed in the early stage of architectural design usually remains unchanged throughout the life of building. This paper provides analysis of building shape (ground plan and vertical division) and their impact of shape factor FT of buildings. For some shape is provide a parametric analysis obtained from a comprehensive whole building energy simulation. Parametric analysis regards orientation of buildings to the cardinal point and ratio of glazing to the building envelope wall.
10
Content available remote Energy precautions in buildings in dependence on energy consumption of buildings
Kosicanova D., Sedlakova A.
Budownictwo o Zoptymalizowanym Potencjale Energetycznym
|
2010
|
nr (7)
146--150
EN
This paper presents a various possibilities of energy precautions in buildings in dependence on energy efficiency of buildings, describe method for economic calculation of the heating systems, relying on data from other systems that may influence the energy demand of the heating system in according of standard STN EN 154 59, from 2008 year available in SR. This method can be used, fully or partly, for consider economic feasibility of energy saving options in buildings, compared different solutions of energy saving options in buildings (e.g. plant types, fuels), evaluated economic performance of an overall design of the building (e.g. trade-off between energy demand and energy efficiency of heating systems), appointing the effect of possible energy conservation measures on an existing heating system, by economic calculation of the cost of energy use with and without the energy conservation measure. This paper describes part of the method for calculation of economic performance of energy saving options in buildings (e.g. insulation, better performing generators and distribution systems, efficient lighting, renewable sources, combined heat and power).
11
Content available remote Podlaha vo vztahu k ostatnym konstrukciam charakteristickeho detailu spodnej stavby v priemyselnych budovach
Sedlakova A., Rudisin R.
Budownictwo o Zoptymalizowanym Potencjale Energetycznym
|
2008
|
nr (5)
297--301
SK
Priemyselne budovy sa doteraz chapali len vo vzt`ahu k minimalizacii investicnych nakladov. Poziadavky sa kladli najma na stroje ci strojne zariadenia a na ich funkcnost`, ale aj zivotnost` budowy sa casto zabudalo. Vzhl`adom na znizovanie energetickej narocnosti, ako aj potreby tepla na vykurovanie sa v sucasnosti zacina aj v oblasti priemyslu uvazovat` o navrhu energeticky uspornych budov s ciel`om vytvorit` vhodne vnutorne pracovne prostredie. Dolezitu ulohu pri zabezpecovani tepelnej pohody vnutornych priestorov priemyselnych budov zohrava spolu s vhodnym konstrukcnym navrhom obvodoveho a stresneho plast`a podlahova konstrukcia v kontakte s podlozim.
12
Content available remote Influence of industrial buildings bottom construction structure on energy consumption decreasing
Sedlakova A., Rudisin R.
Budownictwo o Zoptymalizowanym Potencjale Energetycznym
|
2008
|
nr (5)
289--296
EN
In times of excessive increasing of costs of energy, whether exhaustible resources or inexhaustible ones, we increasingly realize, eventually we are asking a question how to reduce energy consumption and related cost of energy of assessed buildings, eventually how to prevent heat loss through the part of structure and thus improve total heat and energy balance of assessed buildings.
13
Content available remote Poziadavky na konstrukcny detail spodnej stavby z hl`adiska tepelno-technickeho pre halowe budowy
Sedlakova A., Rudisin R.
Budownictwo o Zoptymalizowanym Potencjale Energetycznym
|
2007
|
nr (4)
337--342
EN
The problem how to connect a foundation a floor and a district wall existed already in the past in the field of physical analysis of buildings settled on the land. This problem has became even more important with the development of technology and since there has been a general tendency to minimize the use of energy and material.
14
Content available remote Navrh podlah na terene z hl`adiska vseobecnych poziadaviek
Sedlakova A.
Budownictwo o Zoptymalizowanym Potencjale Energetycznym
|
2007
|
nr (4)
331--336
EN
The problem how to connect a foundation a floor and a district wall existed already in the past in the field of physical analysis of buildings settled on the land. This problem has became even more important with the development of technology and since there has been a general tendency to minimize the use of energy and material.
15
Content available remote Navrh konstrukcneho detailu styku zakladu, obvodoveho plasta a podlahy na rastlom terene v priemyselnych budovach haloveho typu
Sedlakova A., Rusnak A.
Budownictwo o Zoptymalizowanym Potencjale Energetycznym
|
2007
|
nr (4)
343--348
EN
Precise and correct design of floor structures in joining with another bear and ground structures can significantly influence industry production building energetic requirements. Statical and physical technical requirements, maintenance qualities details and framework basic structure are important in activity interaction industry production building and underground. All criteria of thermal protection of buildings ought meet floor structure in joining with another bear and ground structures.
16
Content available remote Vseobecne poziadavky navrhu podlah na terene
Sedlakova A., Perecinsky M.
Budownictwo o Zoptymalizowanym Potencjale Energetycznym
|
2005
|
nr (3)
351--362
EN
The problem how to connect a foundation a floor and a district wall existed already in the past in the field of physical analysis of buildings settled on the land. This problem has became even more important with the development of technology and since there has been a general tendency to minimize the use of energy and material.
17
Content available remote Rekuperacna strecha a jej fyzikalne parametre
Perecinsky M., Sedlakova A.
Budownictwo o Zoptymalizowanym Potencjale Energetycznym
|
2005
|
nr (3)
284--289
EN
This paper deals with some possibilities of the realization of the recuperational flat roofs, which use the refuse warmth of air from the object ventilation system. This warmth due to its continuous flow in the roof space gives up a part of its thermical energy. The theoretic knowledge and results presented in this paper are the result of research work of the whole collective at the Department of Construction at the Faculty of Civil Engineering TU Kosice.
18
Content available remote Vplyv konstrukcie spodnej stavby na tepelne straty objektu
Sedlakova A.
Budownictwo o Zoptymalizowanym Potencjale Energetycznym
|
2004
|
nr (2)
378--383
EN
The problem how to connect a foundation a floor and a district wall existed already in the past in the field of physical analysis of buildings settled on the land. This problem has became even more important with the development of technology and since there has been a general tendency to minimize the use of energy and material.
19
Content available remote Odstranovanie poruch konstrukcii pri zmene unosnosti podlozia budovy
Smutny M., Sedlakova A.
Budownictwo o Zoptymalizowanym Potencjale Energetycznym
|
2004
|
nr (2)
384--388
EN
The article deals with elimination measurements alternative designs of additional-non-beating constructions defects. There breakdowns were a cause for a status of emergency of some primary school buildings. A measures proposal results from defects origin reasons analysis performed on the in situ detailed survey base. The paper presents exacting decision-making at suitable variant of remedy measures reliable solution choice from the realization sequence and duration at minimal repair costs point of view.
20
Content available remote Zohladnenie tepelno-technickych poziadaviek pri rekonstrukcii pamiatkovych budov
Sedlakova A.
Zeszyty Naukowe Politechniki Rzeszowskiej. Budownictwo i Inżynieria Środowiska
|
2000
|
z. 32[180], cz.1
435-441
EN
Endeavour about thermo-insulating characteristic improvements of peripheral walls is evoked by necessity to take off thermo-insulating defects, improved building indoor microclimate also even increased requirements to reduced heating energy consumption of buildings. At the present time an energetic point of view is got out more and more. Buildings built in later time don't fulfil existing present energetic criterious.
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