Energy Modeling for NZEBs: A Case-study

Micono, Carlo; Zanzottera, Guido

doi:10.1016/j.egypro.2015.11.202

Cited by 4 publications

(4 citation statements)

References 6 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The heating savings are important in this study. The total consumption of the optimized building is 45% lower than the basic one, which is comparable to the results of a classical university office building [6]. These changes can save a total of 75 tons of equivalent CO2 gas by reducing only the heat consumption.…”

Section: Global Energy Savingssupporting

confidence: 50%

See 1 more Smart Citation

Case study of the upgrade of an existing office building for low energy consumption and low carbon emissions

Charles

Maref

Ouellet-Plamondon

2019

Energy and Buildings

View full text Add to dashboard Cite

This case study evaluates the best energy efficiency measures of an existing two-story office building from the late 1960s located in Vancouver. Natural gas was used for heating and electricity was used for lighting, cooling and other needs. The building was simulated to match both metered data and bills. The energy model allowed identifying the parameters to reduce the energy consumption and mitigate the impact on CO2-eq emissions. On-site renewable energy supply was simulated. The return on investment (ROI) of the retrofit strategies (building envelope and renewable energy) was calculated to determine the profitability. From the parametric study, the insulation of the wall and roof, the airtightness and window replacement have the most impact on energy saving and allowed reducing 45% of the total annual energy consumed. These improvements can save more than 70 tons of CO2-eq per year from reducing the natural gas consumption. The return on investment of upgrading the building envelope was 7.7 years in Vancouver. Net zero energy building performance was possible with the addition of photovoltaic solar panel and solar heating to supply the total energy needs of the building, with an ROI of 11.6 years. If we changed the building location to Montreal, the same optimized building envelope reduces the energy consumption by 39%, and the energy saving increases to 56% when using the electric heating system usually already in place. Overall, building envelope upgrades are solutions to consider to improve energy saving in northern climate.

show abstract

Section: Global Energy Savingssupporting

confidence: 50%

“…Building upgrades is an excellent opportunity to reduce energy consumption and greenhouse gas emissions [1][2][3][4]. In recent years, improving the energy efficiency of a building is a research topic of high interest [5][6][7][8]. Most studies focus reduction of the operational energy [9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Case study of the upgrade of an existing office building for low energy consumption and low carbon emissions

Charles

Maref

Ouellet-Plamondon

2019

Energy and Buildings

View full text Add to dashboard Cite

show abstract

“…Numerous strategies can be adopted to design building facades for nearly zero-energy buildings. Some authors [3][4][5][6][7][8][9][10] have studied ways to optimize the envelope of buildings to achieve the nearly zero-energy goal in various climate zones.…”

Section: Introductionmentioning

confidence: 99%

“…Loukaidou conducted a study in Cyprus [7], which included a cost-optimal analysis of thermal features of the building envelope. C. Micono [8] designed a building that, according to the analyses, is able to produce the same amount of energy as it consumes on a yearly basis. A study realised in Ireland [9] that compared a super-insulated building to a building that uses renewable technology showed that the super-insulated building is more costefficient due to the fact that the cost of electricity, gas and wood pellets is expected to increase in the future.…”

Section: Introductionmentioning

confidence: 99%

Comparison Study of the Heating Energy Demand for a Multi-Storey Residential Building in Romania Using Steady-State and Dynamic Methods

et al. 2022

View full text Add to dashboard Cite

The purpose of this study is to determine the differences between the steady-state energetic method and the dynamic energetic method in a multi-storey residential building in Romania. For both methods, there are two values for the heating energy demand, one obtained with the theoretical U value and g value according to Romanian Methodology Mc 001/1-2006 and one with the real U value and g value obtained from in situ measurements. The results of our study revealed a difference between the steady-state method and the dynamic method in both cases of approximately 20%. Because the heating energy demand needs to decrease in value according to European legislation and the classical energy demand determination is shallow, as it does not take into account some important factors, it is important to use a method that produces accurate values so the economic factor does not become overwhelming.

show abstract