Thermal Improvement in Residential Buildings in View of the Indoor Air Quality – Case Study for Polish Dwelling

Błaszczok, Monika; Baranowski, A.

doi:10.21307/acee-2018-044

Cited by 15 publications

(14 citation statements)

References 21 publications

(23 reference statements)

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“…The window and door infiltration coefficient can be determined from the abovementioned tightness testing. On the other hand, the direct measurement of the ventilation airflow in the grilles or the ventilation airflow determined from the tracer gas decay can be used to validate the numerical model [18,55].…”

Section: Diagnostics Of Natural Ventilation Systemsmentioning

confidence: 99%

Thermal Diagnostics of Natural Ventilation in Buildings: An Integrated Approach

Ferdyn-Grygierek¹,

Baranowski²,

Błaszczok³

et al. 2019

Energies

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Diagnostics of natural ventilation in buildings is problematic, as the airflow rate changes considerably over time. One constant average airflow is usually assumed when calculating energy demand for a building, however, such a simplification could be fraught with considerable error. The paper describes a comprehensive methodology for the diagnostics of a natural ventilation system in a building and its practical application. Based on in situ measurements and simulations in two existing buildings (dwelling house and school) in Poland, the real values of the ventilating airflows were analyzed and resulting heat demand was compared with the design values. The pros and cons of various methods for evaluation of natural ventilation are discussed. The real airflow was determined by measurements in a ventilation grille or by a tracer gas concentration decay method. The airtightness of the buildings’ envelope was evaluated based on the fan pressurization test. The last stage entailed computer simulations of air exchange in buildings using CONTAM software. The multizone models of the buildings were calibrated and verified with existing measured data. Measured airflow in a multifamily house was small and substantially deviated from the Polish standard. In case of a school, the air flow rate amounted to an average of 10% of the required value. Calculation of the heat demand for ventilation based on the standard value of the airflow led to a considerable overestimation of this value in relation to the real consumption. In the analyzed cases, the difference was 40% for the school and 30% for the residential building.

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Section: Diagnostics Of Natural Ventilation Systemsmentioning

confidence: 99%

Thermal Diagnostics of Natural Ventilation in Buildings: An Integrated Approach

Ferdyn-Grygierek¹,

Baranowski²,

Błaszczok³

et al. 2019

Energies

Self Cite

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“…This method is one of the predefined models in the EP program. The airtightness coefficients for the windows, doors and window inlets were based on the airtightness tests regarding residential buildings in Poland [62,63]. The effective leakage areas of the chimney and roof were established according to ASHRAE [60].…”

Section: Ventilationmentioning

confidence: 99%

Energy and Environmental Analysis of Single-Family Houses Located in Poland

et al. 2020

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This paper presents a comparative analysis of the carbon footprint, energy demand and life cycle costs of a model of a building located in the Central Europe climate zone. One specific example—the quantitative differences in global warming potential, life cycle costs and thermal comfort—has been shown, depending on the different construction (wood, brick) and heat sources used; traditional and energy-saving solutions have been considered. The research was carried out using the EnergyPlus simulation program for a multi-zone model of a naturally ventilated single-family house. Calculations were made for a 25-year life cycle using the standard climate data for Warsaw (Poland). The real occupancy schedule of the individual rooms was adopted and the instantaneous ventilation airflow was modeled, and its intensification due to the additional opening of windows was optimized. An estimated budget of the entire structure of the building and the heat sources was used for the cost analysis. The research has succeeded in developing some general conclusions and guidelines and recommendations for both the investors and designers of energy-saving and environmentally friendly houses. Considering the most economical an ecological solution, wooden houses are better than brick houses. In the wooden building, however, there are a larger number of thermal discomfort hours.

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“…Every day, household members are exposed to mold spores, pollen, dust, and chemical pollutants released by building materials, home furnishings, and equipment. Furthermore, people exhale carbon dioxide and water vapor when performing domestic activities-bathing, washing, cooking, etc., which constitute a significant moisture source [33].…”

Section: Causes Of the Microbiological Threatmentioning

confidence: 99%

Methods for Early Detection of Microbiological Infestation of Buildings Based on Gas Sensor Technologies

et al. 2020

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In this review, the problem of microbiological infestation of buildings was discussed. The techniques of detection were described as well, with special attention drawn to the rapid-early detection methods based on gas sensor arrays. The physical and chemical conditions of the building environment conducive to the development of microorganisms and the technical conditions influencing the problem of microbiological infestation were investigated. Additionally, the harmful effects on human health caused by the microbiological contamination were discussed, with a short review of particular groups of microorganisms causing sick building syndrome. Among the detection techniques, the traditional microbiological techniques as well as the molecular and chemical methods were presented. Different designs of the gas sensor arrays together with the various techniques of analyzing the received multidimensional signal were described, analyzed, and compared in detail.

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Thermal Improvement in Residential Buildings in View of the Indoor Air Quality – Case Study for Polish Dwelling

Cited by 15 publications

References 21 publications

Thermal Diagnostics of Natural Ventilation in Buildings: An Integrated Approach

Thermal Diagnostics of Natural Ventilation in Buildings: An Integrated Approach

Energy and Environmental Analysis of Single-Family Houses Located in Poland

Methods for Early Detection of Microbiological Infestation of Buildings Based on Gas Sensor Technologies

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