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In this article, we present a comparative analysis of the energy load of an existing residential building located in Karabuk, Turkey, and an updated version of the same building. The building, a five-story apartment complex, underwent a comprehensive energy efficiency retrofit to address its high energy consumption and environmental impact.

Existing Building Energy Load Analysis
The initial analysis of the existing building revealed significant energy inefficiencies, with a yearly total heat loss of 170,948.1 kWh, resulting in a class C energy performance certificate according to EU standards. This high energy consumption not only translated to substantial operational costs but also contributed to increased carbon emissions. The analysis highlighted key areas of concern, including inadequate insulation, air leaks, and inefficient building envelope design.

Updated Building Energy Load Analysis
Following the implementation of energy-efficient measures, the updated building demonstrated a remarkable reduction in energy consumption, with the yearly total heat loss plummeting to 117,936.6 kWh, resulting 33% of Annual Energy Savings , and rendering the building into an A class energy performance certificate. This substantial decrease in energy demand signifies a significant step towards sustainability and cost savings. The updated building’s energy load analysis serves as a testament to the effectiveness of energy-efficient building strategies.

Energy Efficient Building Study

Key Changes for Energy Efficiency

  1. Enhanced Insulation: The introduction of advanced insulation materials and techniques, including upgrading the insulation in the walls, roof, and floors, significantly minimized energy demand.
  2. Air Sealing: Addressing air leaks through meticulous air sealing measures eliminated drafts and prevented unnecessary heat exchange.
  3. Building Envelope Optimization and Window-to-Wall Ratio: The optimization of the building envelope, including the use of high-performance windows and doors, contributed to minimizing heat transfer and enhancing overall energy efficiency.
  4. Efficient HVAC Systems: The integration of energy-efficient heating, ventilation, and air conditioning (HVAC) systems further reduced energy consumption and enhanced indoor comfort.
  5. Renewable Energy Integration: The incorporation of solar panels augmented the building’s energy profile, reducing reliance on traditional energy sources and further lowering operational costs.

The comparative analysis of the existing and updated building energy loads underscores the transformative impact of energy-efficient measures. By prioritizing enhanced insulation, air sealing, building envelope optimization, efficient HVAC systems, and renewable energy integration, the building significantly reduced energy consumption, lower operational costs, and mitigated its environmental footprint. Embracing these changes is not only a step towards energy efficiency but also a commitment to a sustainable and environmentally conscious future, achieved with reasonable costs.

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