Case Study of Thermal Diagnostics of Single-Family House in Temperate Climate

Aleksandra Specjał,Aleksandra Lipczyńska,Agnieszka Palmowska,Maria Hurnik,Małgorzata Król,Zbigniew Popiołek

doi:10.3390/en12234549

Aleksandra Specjał, Aleksandra Lipczyńska + Show 4 more

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https://doi.org/10.3390/en12234549

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Journal: Energies	Publication Date: Nov 29, 2019
Citations: 6	License type: CC BY 4.0

Affiliation: Silesian University of Technology

Abstract

Reduction of the primary energy consumption is a crucial challenge for the building sector due to economic and environmental issues. Substantial savings could be achieved within the household. In this paper, we investigate the energy performance of a single-family house located in the temperate climate. The assessment is based on the comprehensive thermal diagnostic of the building performed on-site and via computational analyses. The on-site measurements included diagnostics of the building envelope, heat source, heating and domestic hot water system, ventilation system, and indoor environmental quality. Analyses confirmed that the studied building, which was built in 2008, meets the legislation requirements for the primary energy usage at that time and nowadays. However, results show discrepancies between energy performance obtained through on-site measurements and computational methods following regulations. Partially, discrepancies are a result of differences on normative values and how the building is operated in practice. It is also showed how important the role in the assessment of energy consumption through measurements is played by the measurement period.

Highlights

The construction sector is the second largest consumer of energy worldwide [1,2]
Preparation, and lighting should not exceed 70 kWh/(m2 ·year) [3]. This means a significant reduction in energy consumption in residential buildings
We present results of energy assessment not yet published for a single-family house consumption in residential buildings, our research focuses on one single-family house

Summary

Introduction

The construction sector is the second largest consumer of energy worldwide [1,2]. Following the requirements of the European Union (EU), from 2021, the maximum annual building demand for non-renewable primary energy for heating, ventilation, cooling, domestic hot water (DHW)preparation, and lighting should not exceed 70 kWh/(m2 ·year) [3]. The construction sector is the second largest consumer of energy worldwide [1,2]. Following the requirements of the European Union (EU), from 2021, the maximum annual building demand for non-renewable primary energy for heating, ventilation, cooling, domestic hot water (DHW). Preparation, and lighting should not exceed 70 kWh/(m2 ·year) [3]. This means a significant reduction in energy consumption in residential buildings. Poland is gradually preparing for these changes. Newly constructed single-family buildings have been required to achieve a primary energy consumption index for heating, ventilation, and DHW lower than 95 kWh/(m2 ·year) [4].

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