Work

Stack Ventilation Performance in a Semi-Detached House After Limiting Energy Consumption for Space Heating

Year: 2025

Type: article

Abstract: Increasing requirements for reducing energy consumption result in window tightness, which decreases the air ventilation rate. This study examines the volume flow rate, stack pressure difference, and pressure losses for a one-person workroom of a semi-detached house under changing window tightness; the determination of the pressure losses and the uncertainty estimation of the examined quantities are described in full detail. The basic indoor air properties of relative humidity and density were determined only by readouts from a gauge and thermodynamic constants. One gauge with a vane probe measured the air velocity and temperature at a grille; a second gauge with an indoor air quality (IAQ) probe measured the mole fraction of carbon dioxide, temperature, absolute pressure, and humidity. The measurements were taken in ten one-week series throughout the year. Stack ventilation performance was good, as the IAQ satisfies the present requirements; however, the uncertainties sometimes exceeded the determined values significantly.

Source: Energies

DOI: 10.3390/en18174616

Authors: Jan Dobkowski, Andrzej Gajewski

Institution: Bialystok University of Technology

Language: English

Topic: Building Energy and Comfort Optimization

Subfield: Building and Construction

Field: Engineering

Domain: Physical Sciences

SDGs: Affordable and clean energy, Climate action

Open Access status: gold

Estimated APC paid: $3,137