Effect of ventilation on indoor environmental quality in buildings

Kapalo, Peter; Sedlбkovб, Anna; Koљicanovб, Danica; Voznyak, Orest; Lojkovics, Jбn; Široczki, Pavol

doi:10.3846/enviro.2014.265

Cited by 5 publications

(7 citation statements)

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“…indisposition. Concentration above 60000 may cause a blackout (Kapalo, 2014). The highest permissible concentration in the work environment is 9000 mg/m 3 i.e.…”

Section: Discussionmentioning

confidence: 99%

“…Increased eye, nose throat irritation, headache, fatigue and sleepiness as well as general poor air quality have been reported on the level of 97% (Table 5). Increasing the number of air exchanges in rooms will reduce the level of CO2 pollution and eliminate the phenomenon of a sick building (Kapalo et al 2014). To maintain proper environmental conditions during the operation of the building, it would be good to use tools based on BIM technology (Sobczyk et al, 2018).…”

Section: Discussionmentioning

confidence: 99%

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Safety of Use of the Buildings in the Aspect of the Indoor Environmental Quality

Lis

Vranayová

2019

System Safety: Human - Technical Facility - Environment

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Safety of use of the buildings refers i.a. to ensuring appropriate hygienic and sanitary conditions and also health conditions. According to the EU Directive on the energy performance of buildings, there is a need to define the conditions for the classification of objects in terms of indoor microclimate requirements. Evaluating the quality of the interior environment in buildings and specifying the requirements of people staying in them, first of all the values of thermal microclimate parameters and air quality should be taken into account. Long-term influence of disadvantageous of environmental conditions may cause or exacerbate many symptoms associated with abnormal functioning of the organism and lead to the weakness or illness. This phenomenon is called sick building syndrome, and the symptoms of the syndrome such as eyes and respiratory tract irritation, malaise, dizziness and headache or fatigue are linked to time spent in the building. The article presents the results of research on the condition of the interior environment in educational buildings, identifies factors affecting the formation of environmental conditions in the rooms and shows the influence of the interiors environment in buildings on the human body. The relationships between the basic parameters of the interior microclimate and the state of feeling satisfaction with the environmental conditions that surrounds the human are tracked. It was found that in many cases commonly used gravitational ventilation is not able to ensure the proper conditions of the interior microclimate, and the concentrations of carbon dioxide recorded in the tested rooms exceeded the applicable standards. Keywords: interior microclimate, air quality, hygienic and sanitary conditions, sick building syndrome, safety of use of the buildings.

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“…indisposition. Concentration above 60000 may cause a blackout (Kapalo, 2014). The highest permissible concentration in the work environment is 9000 mg/m 3 i.e.…”

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Safety of Use of the Buildings in the Aspect of the Indoor Environmental Quality

Lis

Vranayová

2019

System Safety: Human - Technical Facility - Environment

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“…The human physiological needs [13,14] and the effectiveness of human work depends largely on the indoor climate [12]. Important problems of room ventilation are to ensure both effective organization of air exchange and air distribution [10].…”

Section: Introductionmentioning

confidence: 99%

“…Important problems of room ventilation are to ensure both effective organization of air exchange and air distribution [10]. So, the requirements of ensuring of the normalized air velocity and temperature in the premise working area [4,13,14] and energy efficiency [1,28,38,41] should be followed. Heat utilization of exhaust air by recuperators [2,7,37] is often used.…”

Section: Introductionmentioning

confidence: 99%

Diagnosis of three types damages to the ventilation system

Voznyak¹,

Spodyniuk²,

Sukholova³

et al. 2022

Diagnostyka

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The article is devoted to solving of urgent problem to eliminate damage in ventilation system. That is caused by non-adequate long range, stagnant unventilated areas in the room existance and high noise level in the premises at air distribution by swirled air flow, compact air jet, flat air stream and rectangular air jet. A noise level of air supply with swirled air flow, compact air jet, flat air jet and rectangular air stream in the room has been investigated. It is shown that in order to achieve the maximum noise level decreasing it is necessary to ensure its supply by jets, which less intensively attenuate before entering the premise working area. Results of the experimental research are presented as graphical and analytical dependences. The acoustic properties of the swirled air flow, compact air jet, flat air stream and rectangular air jet have been investigated and means of situation improving have been determined. The results of experimental research of air supply to the room are presented. It is established that with the increase of the angle of swirling plates inclination and ratio of the slit sides the air jets noise level decreases.

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“…One of the important tasks of room ventilation is to ensure the effective organization of air exchange [6], in particular air distribution [2,4,12]. In this case, the requirements of ensuring the normalized velocity and temperature of the air in the working area [14,16,18] and energy efficiency [9,37,39] should be followed. Exhaust air utilization by recuperators is usually used [1,36].…”

Section: Introductionmentioning

confidence: 99%

Diagnosis of damage to the ventilation system

Spodyniuk¹,

Voznyak²,

Sukholova³

et al. 2021

Diagnostyka

Self Cite

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The article is devoted to solving of urgent problem to eliminate damages of two types in ventilation systems for air distribution efficiency increasing in the premises by swirled air flow, compact air jet, flat air stream and rectangular air jet. A mathematical model of air supply with swirled air flow, compact air jet, flat air jet and rectangular air stream in the room has been developed. It is shown that in order to achieve the maximum efficiency of air distribution it is necessary to ensure its supply by jets. Graphical and analytical dependences on the basis of the conducted experimental research are presented. Parameters of swirled air flow, compact air jet, flat air stream and rectangular air jet during the formation of a comfortable indoor climate are determined. The results of experimental studies of air supply to the room by the air distribution devices, which form a swirled air flow, compact air stream, flat air flow and rectangular air jet with adequate turbulence and long range of the supply air flow, are presented. It is established that with the increase of the angle of swirling plates inclination and ratio of the slit sides the air jets long range increases.

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Effect of ventilation on indoor environmental quality in buildings

Cited by 5 publications

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Safety of Use of the Buildings in the Aspect of the Indoor Environmental Quality

Safety of Use of the Buildings in the Aspect of the Indoor Environmental Quality

Diagnosis of three types damages to the ventilation system

Diagnosis of damage to the ventilation system

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