• Vol 7, No 1 (2016)
  • Industrial Engineering

Energy Performance Indices for Hospital Buildings in Nigeria

S.C. Nwanya, C. Sam Amobi, O.V. Ekechukwu

Corresponding email: stephen.nwanya@unn.edu.ng


Published at : 30 Jan 2016
IJtech : IJtech Vol 7, No 1 (2016)
DOI : https://doi.org/10.14716/ijtech.v7i1.2094

Cite this article as:

Nwanya, S., Amobi, C.S., Ekechukwu, O., 2016. Energy Performance Indices for Hospital Buildings in Nigeria. International Journal of Technology. Volume 7(1), pp.15-25

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S.C. Nwanya Department of Mechanical Engineering, Faculty of Engineering, University of Nigeria, Nsukka, 410101 Enugu State, Nigeria
C. Sam Amobi Department of Architecture, Faculty of Environmental Studies University of Nigeria, Enugu Campus, College Road Nigeria
O.V. Ekechukwu Information and Communication Technology, National Universities Commission, Aguiyi Ironsi St, Abuja, Nigeria
Email to Corresponding Author

Abstract
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In Nigeria, the economic problem of allocating energy to medicare have long been a major concern and standardized indices to be used as guidance are non-existent. This paper determines energy indices for assessment of how Nigerian hospitals prioritize their energy utilization. Systematic field surveys followed by in-depth statistical analysis were adopted. The hospitals were stratified into four categories for the investigation. Then, questionnaires were designed, randomly administered and their responses generated in conversation with workers at 70 hospitals in Nigeria. Results of the analysis show that an average hospital in Nigeria, depending on its category, uses energy as follows: rural 66.936kWh/day; urban 343.23 kWh/day; specialist 454.872 kWh/day and teaching 1,944.394 kWh/day. Lighting is shown as a critical energy function and accounts for as much as 15%, 36%, 40.5% and 69.5% of daily energy use in rural, urban, specialist and teaching hospitals, respectively. A productivity based energy performance indicator for each hospital category works out to be 3.346 kWh/bed space/day, 2.367 kWh/bed space/day, 4.548 kWh/bed space/day and 19.443 kWh/bed space/day, respectively, for typical rural, urban, specialist and teaching hospitals. The respective Building Energy Index (BEI) values for the categories of hospitals are as follows: rural 0.13 kWh/m2/day; urban 0.077 kWh/m2/day; specialist 0.088 kWh/m2/day and teaching 0.277 kWh/m2/day. The low BEI implies that the buildings have lower rates of sick building syndrome symptoms. Also, auto-generation is predominantly used in all the hospitals, when grid utility supply is unavailable.

Building energy index, Energy performance, Hospital building, Lighting energy indicator, Nigeria

References

Al-Karaghouli, A., Kazmerski, L.L., 2010. Optimization and Life-cycle Cost of Health Clinic PV System for a Rural Area in Southern Iraq using HOMER Software. Solar Energy, Volume 84, pp. 710–714

Bosch, J.P., Glaser, E., 2012. Powering Health: Electrification Options for Rural Health Centers, United States Agency for International Development, USAID. Available at: http://www.pdf.usaid.gov/pdf_docs/PNADJ557.pdf, Accessed on March 2, 2013

CEN/TC 169 N 0618, 2013. PrEN 15193: Energy Performance of Buildings – Energy Requirements for Lighting, Available at: http://www.iar.unicamp.br/../en_15193-1_energy_requirements, Accessed on April 8, 2013

Chen, Qingyan, 2009. Ventilation Performance Prediction for Buildings: A Method Overview and Recent Application. Building and Environment, Volume 44(4), pp. 848–859

Degelman, L.O., Soebarto, V.I., 2013. Vital Signs: Whole Building Energy Performance- simulation. Available at: http://www.arch.ced.berkeley.edu/vitalsigns/res/downloads, Accessed on April 8, 2013

E-Source Customer Direct, 2010. Managing Energy Costs in Hospitals. US Energy Information Administration, pp. 1–4

Gordo, E., 2011. Energy Efficiency in a Hospital Building Case Study: Hospitnis da Uviversidade de Coimbral, Portugal. Energetics IYCE 2011. In: the Proceedings of the 2011 3rd International Youth Conference on Energetics, Available at: http://www.ieeexplore.ieee.org, Accessed on February 21, 2013

Hu, S.C., Chen, J.D., Chuah, Y.K., 2004. Energy Cost and Consumption in a Large Acute Hospital. International Journal on Architectural Science, Volume 5(1), pp. 11–19

Jimenez, A.C., Olson, K., 1998. Renewable Energy for Rural Health Clinics. National Renewable Energy Laboratory, NREL Colorado, USA, Available at: http://www.nrel.gov/docs/legosti/fy98/25233.pdf , Accessed on March 5, 2013

Life04 EMV, 2013. Guideline for Energy Efficiency Measures in Hospitals. Life-Environment EMAS and Information Technology in Hospitals, Life04 EMV/GR/000114, Available at: http://ec.europa.eu/environment/life/project, Accessed on February 27, 2013

NASA Langley Research Center, 2002. Owerri, Nigeria-Sunrise, Sunset, Dawn and Dusk Times, Available at: http://www.gaisma.com/eu/location/owerri.html, Accessed on September 2014

Nwanya, S.C., Ekechukwu, O.V., 2013. The Energy Performance of Hospital Buildings in Nigeria. In: the Proceedings of the Conference of Young Scientist in Energy (CYSENI), May 29-31, Kaunas, Lithuania, Volume V, pp. 302–309

Perez-Lombard, L., Ortiz, J., Pout, C., 2008. A Review of Buildings Energy Consumption Information. Energy and Buildings, Volume 40, pp. 394–398

Pinzone, M., Lettieri, E., Masella, C., 2012. Sustainability in Healthcare: Combining Organizational and Architectural Levers. International Journal Engineering Business Management, Volume 4(38), pp. 1–9

Seppanen, O., 2008. Scientific Basis for Design of Ventilation for Health, Productivity and Good Energy Efficiency. Available at: http://www.buildup.eu/system/.../Ventilation_IndoorAir08_Seppanen_2008.pd, Accessed on June 3, 2013

Singer, B.C., Mathew, P., Greenberg, S., Tschudi, W., Sartor, D., 2009. Hospital Energy Benchmarking Guidance-version 1.0. Ernest Orlando Lawerence Berkeley National Laboratory, California, pp 1–52

Stankovic, S., Campbell, N., Makimovic, O., Cvjetkovic, T., 2009. Evaluation of energy Efficiency Measures Applied in Public Buildings (Schools and Hospitals) in Serbia. Spatium Inter. Review, No. 20, pp. 1–8

WHO and SEARO, 2005. Minimum Water Quantity Needed for Domestic Uses. Available at: http://www.ec.europa.eu/echo/files/evaluation/watsan2005/annexfile/who/who5, Accessed on March 15, 2013

World Health Organization, WHO, 2013. Solar Energy and Rural Health Care. WHO fact sheet N132, Geneva, Switzerland, 1996, Available at: http://www.who.int/inf-fs/fact132.html, Accessed on 28 February 28, 2013

Yildiz, J., 2011. Identification of the Building Parameters that Influence Heating and Cooling Energy Loads for Apartment Buildings in Hot-humid Climates. Energy, Volume 36, pp. 4287– 4296


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