Evaluation of energy-saving potential, carbon emission, and thermal comfort in an historic university building in London

Abstract

Introduction: This study investigates the energy performance, carbon emissions, and thermal comfort implications of proposed building modifications for the London Business School E-Wing building. With the increasing demand for sustainable building practices, understanding the impact of various modifications is crucial.

Objective: The primary aim is to evaluate the potential for reducing energy consumption, mitigating carbon emissions, and enhancing indoor environmental quality in educational institutions through strategic building upgrades.

Methodology: A detailed building energy model was developed using the IES-VE software to model both existing and proposed E-Wing building scenarios. The model considers factors such as heating and cooling systems efficiency, lighting, and window characteristics.

Results: The analysis revealed significant opportunities for energy savings, with proposed modifications demonstrating a potential reduction of 17.4% in energy consumption compared to the existing building. Further enhancements, such as window upgrades, could lead to a 25.8% decrease in energy usage from the baseline. Carbon emissions analysis indicated an estimated 8.2% potential reduction in emissions for the proposed building, underscoring the environmental benefits of sustainable building practices. Thermal comfort assessments showed a 13% potential increase in acceptable comfort levels and a 5% decrease in unacceptable thermal comfort hours during occupied times, particularly in lecture and seminar rooms.

Conclusions: The study concludes that even when dealing with old buildings with certain restrictions, strategic modifications can significantly improve energy efficiency, reduce carbon emissions, and enhance thermal comfort in educational buildings, even when increasing the cooling load.