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Investigation of Energy Efficient Retrofit HVAC Systems for a University: Case Study

Author

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  • Jayraj Ligade

    (Department of Mechanical and Energy Engineering, Indiana University-Purdue University, Indianapolis, IN 46202, USA)

  • Ali Razban

    (Department of Mechanical and Energy Engineering, Indiana University-Purdue University, Indianapolis, IN 46202, USA)

Abstract

We did energy efficient retrofits for the Indiana University Purdue University—Indianapolis Health Science Building using the eQuest energy software. The current dual-fan dual-duct (DFDD) system is 41 years old and has a higher energy utilization index (EUI) than the national average for similar building types. The baseline model with the DFDD system was compared with the actual electrical consumption. Then, two energy efficiency measures (EEMs) were applied to the model. The first EEM was ‘DFDD system with chilled water and steam heating,’ and the second EEM was ‘single-duct variable air volume (VAV) with chilled water and electric reheat.’ After comparative simulations and analyses, it was determined that the ‘single duct VAV with chilled water and electric reheat’ was the most energy efficient and saved 28% in utility costs. The recommendation given to the facility services was to change the current DFDD system to the single-duct VAV system. The single-duct VAV system will save energy and create additional space above the ceiling after the heating duct is removed.

Suggested Citation

  • Jayraj Ligade & Ali Razban, 2019. "Investigation of Energy Efficient Retrofit HVAC Systems for a University: Case Study," Sustainability, MDPI, vol. 11(20), pages 1-12, October.
    • Handle: RePEc:gam:jsusta:v:11:y:2019:i:20:p:5593-:d:275211
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    References listed on IDEAS

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    1. Li, Danny H.W. & Lam, Tony N.T. & Wong, S.L. & Tsang, Ernest K.W., 2008. "Lighting and cooling energy consumption in an open-plan office using solar film coating," Energy, Elsevier, vol. 33(8), pages 1288-1297.
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    Cited by:

    1. Elena Belyanovskaya & Miroslav Rimár & Roman D. Lytovchenko & Miroslav Variny & Kostyantyn M. Sukhyy & Oleksandr O. Yeromin & Mikhailo P. Sykhyy & Elena M. Prokopenko & Irina V. Sukha & Mikhailo V. Gu, 2020. "Performance of an Adsorptive Heat-Moisture Regenerator Based on Silica Gel–Sodium Sulphate," Sustainability, MDPI, vol. 12(14), pages 1-15, July.
    2. Marek Borowski & Piotr Mazur & Sławosz Kleszcz & Klaudia Zwolińska, 2020. "Energy Monitoring in a Heating and Cooling System in a Building Based on the Example of the Turówka Hotel," Energies, MDPI, vol. 13(8), pages 1-20, April.
    3. Mohammad B. Hamida & Wahhaj Ahmed & Muhammad Asif & Faris Abdullah Almaziad, 2020. "Techno-Economic Assessment of Energy Retrofitting Educational Buildings: A Case Study in Saudi Arabia," Sustainability, MDPI, vol. 13(1), pages 1-15, December.
    4. Faouzan Abdulaziz Alfaoyzan & Radwan A. Almasri, 2023. "Benchmarking of Energy Consumption in Higher Education Buildings in Saudi Arabia to Be Sustainable: Sulaiman Al-Rajhi University Case," Energies, MDPI, vol. 16(3), pages 1-28, January.

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