Comparison of indoor moisture excess in three different terraced housing projects

Abstract In this study three neighbourhoods of terraced houses have been investigated. In 16 to 29 houses of each project, indoor temperature and indoor humidity have been measured, inhabitants have been interviewed and Blower-Door Tests have been performed. PSG is a project with 91 similar, very airtight detached houses. More than 29 of these houses have been investigated. TES is a low-rise high-density project with 46 single family houses built in 1974. The measuring results of 20 houses with very poor airtightness have been analysed. APW is a project with 26 terraced houses built in 2012, which have mechanical ventilation systems. From APW 16 houses have participated in the study. It will be illustrated that the airtight houses of PSG have the highest absolute indoor humidity, the TES houses with the poor airtightness have medium absolute indoor humidity and the APW with the mechanical ventilation systems have the lowest absolute indoor humidity. Box plots of the moisture excess in the diagram with the humidity classes from EN ISO 13788 [1] show that the boxes do not overlap.

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Assessment of Reducing Pollutant Emissions in Selected Heating and Ventilation Systems in Single-Family Houses

Energies ◽

10.3390/en13051224 ◽

2020 ◽

Vol 13 (5) ◽

pp. 1224 ◽

Cited By ~ 1

Author(s):

Joanna Hałacz ◽

Aldona Skotnicka-Siepsiak ◽

Maciej Neugebauer

Keyword(s):

Mechanical Ventilation ◽

Heat Pump ◽

Carbon Dioxide Emissions ◽

Natural Ventilation ◽

Pollutant Emissions ◽

Single Family ◽

Heating Systems ◽

Biomass Boiler ◽

Final Energy ◽

Ventilation Systems

The article presents the results of a study aiming to select the optimal source of heat for a newly designed single-family home. Commercial software was used to compare heating and ventilation systems involving a bituminous coal boiler, a condensing gas boiler, a biomass boiler, a heat pump with water and glycol as heat transfer media. The effectiveness of natural ventilation, mechanical ventilation with a ground-coupled heat exchanger, and solar heater panels for water heating were evaluated. The analysis was based on the annual demand for useful energy, final energy, and non-renewable primary energy in view of the pollution output of the evaluated heating systems. The analysis revealed that the heat pump with water and glycol was the optimal solution. However, the performance of the heat pump in real-life conditions was below its maximum theoretical efficiency. The biomass boiler contributed to the highest reduction in pollutant emissions (according to Intergovernmental Panel on Climate Change Change guidelines, carbon dioxide emissions have zero value), but it was characterized by the highest demand for final energy. Mechanical ventilation with heat recovery was required in all analyzed systems to achieve optimal results. The introduction of mechanical ventilation decreased the demand for final energy by 10% to around 40% relative to the corresponding heating systems with natural ventilation.

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Ozonolysis of monoterpenes in mechanical ventilation systems

Atmospheric Environment ◽

10.1016/j.atmosenv.2005.07.013 ◽

2005 ◽

Vol 39 (34) ◽

pp. 6315-6325 ◽

Cited By ~ 17

Author(s):

Jerker Fick ◽

Linda Pommer ◽

Anders Åstrand ◽

Ronny Östin ◽

Calle Nilsson ◽

...

Keyword(s):

Mechanical Ventilation ◽

Ventilation Systems

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Indoor temperatures for calculating room heat loss and heating capacity of radiant heating systems combined with mechanical ventilation systems

Energy and Buildings ◽

10.1016/j.enbuild.2015.12.005 ◽

2016 ◽

Vol 112 ◽

pp. 141-148 ◽

Cited By ~ 9

Author(s):

Xiaozhou Wu ◽

Bjarne W. Olesen ◽

Lei Fang ◽

Jianing Zhao ◽

Fenghao Wang

Keyword(s):

Mechanical Ventilation ◽

Heat Loss ◽

Radiant Heating ◽

Heating Systems ◽

Heating Capacity ◽

Ventilation Systems

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Energy efficiency and air distribution of VFD-driven mechanical ventilation systems

10.13031/aim.20162461516 ◽

2016 ◽

Cited By ~ 1

Keyword(s):

Mechanical Ventilation ◽

Energy Efficiency ◽

Air Distribution ◽

Ventilation Systems

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Casa permeável: uma metodologia projetual alternativa para a concepção de uma habitação unifamiliar

Ciência e Natura ◽

10.5902/2179460x35509 ◽

2019 ◽

Vol 40 ◽

pp. 119

Author(s):

Gustavo Streck Severo ◽

Ricardo De Souza Rocha ◽

Samuel Silva de Brito

Keyword(s):

Urban Space ◽

Point Of View ◽

Planning Method ◽

Single Family ◽

First Semester ◽

Housing Projects ◽

Specific Outcome ◽

Family Housing ◽

The City ◽

Santa Maria

Permeable House is the title of the present paper produced for the “Projeto III” course at the Universidade Federal de Santa Maria (Campus Cachoeira do Sul) as part of the Architecture and Urbanism program in the first semester of 2017, related to single family housing projects. Facing the traditional single-family dwelling, we were guided by a unique work methodology that emphasizes certain requests and elicits a mindset concerned about unexpected vital issues. This paper aims to present the specific features of this design planning method towards a specific outcome: Permeable house – an experimental alternative to the usual organization of house designing – identifying the refreshed understanding of architecture from the point of view of this methodology that emphasizes the structure – and the opportunity of designing it along with the initial concerns over form –, the city – considering architecture as an entity that creates the urban space – and the environment – highlighting the role architecture has when it comes to dialoguing with its natural and built surroundings.

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Self-contained ventilation system of civil buildings built into window structures

MATEC Web of Conferences ◽

10.1051/matecconf/201819602007 ◽

2018 ◽

Vol 196 ◽

pp. 02007

Author(s):

Arman Kostuganov ◽

Yuri Vytchikov ◽

Andrey Prilepskiy

Keyword(s):

Mechanical Ventilation ◽

Thermal Protection ◽

Ventilation System ◽

Field Tests ◽

Building Construction ◽

Labor Input ◽

Building Envelopes ◽

Extra Space ◽

Research Stage ◽

Ventilation Systems

The article describes development and application of self-contained ventilation systems in civil buildings. It suggests several models of air exchange within the building, compares these models and points out the variant of ventilating with self-contained mechanical systems with utilization of heat. The researchers conclude that structurally self-contained systems of mechanical ventilation with utilization of heat are most efficiently built into window constructions. This installation variant makes it possible to keep the interior, avoid building construction strengthening, shorten time and labor input of construction-assembling works, allow rational use of the vertical building envelopes area without extra space using. The paper key issue is the development of constructive solutions of self-contained ventilation systems main elements to ensure the possibility of their use in window structures. This research stage was developed with account of previous results of field tests and of such ventilation systems theoretical descriptions. The authors assess limit dimensions of the systems suitable for installment into window constructions of civil buildings in the view of modern Russian requirements to thermal protection. The research suggests a general constructive solution of such a ventilation system and a heat exchanger model which can be used as an air heat utilizer in these systems.

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