Energy Consumption and Environmental Impact Assessment of the Energy Efficient Houses in Toronto, Canada

Mohazabieh, Samira Zare; Ghajarkhosravi, Mahssa; Fung, Alan S.

doi:10.1016/j.proeng.2015.08.544

Cited by 7 publications

(3 citation statements)

References 2 publications

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“…Through the total carbon curve it has been demonstrated that current building energy codes and regulations, which focus mainly on space heating and operational energy aspects, do not necessarily result in a lower overall energy consumption when compared with less energy efficient buildings without including embodied energy contribution. This has also been evidenced in Mohazabieh, Ghajarkhosravi & Fung (2015), Gul and Patidar (2015) and Stephan et al (2013). If the regulations are aiming to reduce buildings energy consumption and associated greenhouse gas emissions, wider system boundaries must be adopted, including the embodied energy in building materials.…”

Section: Optimum Combined Operational and Embodied Carbon Analysismentioning

confidence: 99%

Embodied energy data implications for optimal specification of building envelopes

Resalati

Kendrick

Hill³

2019

Building Research & Information

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Highly insulated building envelopes have become more commonplace as environmental imperatives require reduction of building carbon footprints. Whilst increased insulation levels reduce operational energy demand, the additional embodied energy investment can increase the buildings' overall environmental impact. The embodied energy consideration can determine whether, and to what extent, additional insulation is justified. The following paper investigates the impact of uncertainties of embodied energy data on the cumulative operational and embodied energy analyses and holistically appraises its implications for different stakeholders involved with the construction sector. Limitations in current LCA calculation methods and high uncertainty of available data are recognised and reflected in the analyses through studying available EPDs of various types of insulation materials and by modelling a typical semi-detached residential building in the UK as the case study. The results of such approach illustrate 'optimum insulation thicknesses' beyond which the embodied energy penalty outweighs operational energy savings. These essentially represent idealised levels of building envelope insulation that can inform the development of future standards for low energy/carbon buildings and support the adoption of LCAs as decision making tools in informing the urgent debate of optimal insulation requirements of buildings.

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Section: Optimum Combined Operational and Embodied Carbon Analysismentioning

confidence: 99%

Embodied energy data implications for optimal specification of building envelopes

Resalati

Kendrick

Hill³

2019

Building Research & Information

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“…S.Z. Mozabieh et al [13] highlighted that the cumulative lifecycle energy and carbon analysis, as well as energy payback periods and net energy ratios, are also crucial for making an energy-efficient house.…”

Section: Literature Reviewmentioning

confidence: 99%

A Comparison of Solar Photovoltaic and Solar Thermal Collector for Residential Water Heating and Space Heating System

Rahaman¹,

Iqbal²

2019

EJERS

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Almost all single-family detached houses in Canada consume enormous electrical energy for space heating and domestic hot water (DHW) purposes. There are many possibilities to design an energy-efficient house. A solar water heating system can be used for domestic water and space heating. Water temperature can be kept constant always by connecting a heat pump or oil burner to the main tank because solar energy is intermittent. The sizing of solar photovoltaic and collector, tank, heat pump are essential to design an effective system based on the system energy consumption. The existing house is just a conventional house where space and water heating are provided by the grid electricity only. In this research, two possible ways of thermal energy storage systems have been designed for a residential single-family house with solar collector and solar photovoltaic. It is proved that the proposed PV based energy storage system is highly suitable considering lower cost, high output power, flexibility, and easy installation.

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“…S.Z. Mozabieh et al [10] highlighted that the cumulative lifecycle energy and carbon analysis, as well as energy payback periods and net energy ratios, are also crucial for making an energy-efficient house.…”

mentioning

confidence: 99%

A Comparison of Solar Photovoltaic and Solar Thermal Collector for Residential Water Heating and Space Heating System

Rahaman¹,

Iqbal²

2019

Preprint

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Almost all single-family detached house in Canada consume huge electricity for space heating and domestic hot water (DHW) purposes. There are many possibilities to design an energy-efficient house. A solar water heating system can be used for domestic water and space heating. Water temperature can be kept constant always by connecting a heat pump or oil burner because solar energy is intermittent. Proper and optimized solar photovoltaic and collector design, tank design, heat pump selection, house insulation, total demand calculation in each section are essential. Energy-Efficient house design has been proposed with water heating and space heating system and compared with the existing system, solar PV based systems, and solar collector based system. The tracking and non-tracking based solar thermal collector based and the solar photovoltaic based system has been compared in this paper and investigate the suitable one for practically applicable and acceptable by the people. Simulation has been done by using the PolySun software. It found that by implementing the proposed PV based system with tracking is highly suitable considering lower cost, high output power, flexibility, easy installation.

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Energy Consumption and Environmental Impact Assessment of the Energy Efficient Houses in Toronto, Canada

Cited by 7 publications

References 2 publications

Embodied energy data implications for optimal specification of building envelopes

Embodied energy data implications for optimal specification of building envelopes

A Comparison of Solar Photovoltaic and Solar Thermal Collector for Residential Water Heating and Space Heating System

A Comparison of Solar Photovoltaic and Solar Thermal Collector for Residential Water Heating and Space Heating System

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