Detailed energy efficiency strategies for converting an existing office building to NZEB: a case study in the Pacific Northwest
Tóm tắt
This paper is an attempt to identify a methodology for converting conventional energy consumption buildings to net-zero energy buildings (NZEB). The first step was rather different from the usual energy audit, which is to analyze a facility’s energy consumptions from both macro- and micro-scales. To implement such an approach, a governmental office building (Metro) in Portland, OR, was chosen as a case study. After a building model was validated against a real measurement, it was then used to evaluate different energy efficiency strategies (EESs) so as to reduce the energy consumption. The EESs showed a reduction in energy use intensity (EUI) from 166 to 66 kWh/m2.year, which is 60% less than the current consumption. The remaining energy demand of the building will be compensated by implementing renewable energy technologies (RETs), namely photovoltaic. The photovoltaic (PV) panels showed viability since they will produce 532 MWh on-site throughout the year, which is sufficient for the future remaining energy demand of the building (490.5 MWh). In conclusion, the simple payback period (SPP) and the life cycle cost analysis proved the feasibility of EESs and RETs. Environmentally, a total of 106 tons of CO2 was prevented per year; in addition, 64.6 tons of CO2 will also be avoided by the PVs on a yearly basis.
Tài liệu tham khảo
ASHRAE. (2002). ASHRAE guideline 14-2002 for measurement of energy and demand savings. Atlanta: American Society of Heating, Refrigeration and Air Conditioning Engineers.
ASHRAE. (2008). Producing Net-Zero Energy Buildings, ASHRAE Vision 2020: Providing tools by 2020 that enable the building community to produce market-viable NZEBs by 2030.
ASHRAE, ANSI/ASHRAE Standard 100–2006. (2006). Energy conservation in existing building, Atlanta: American Society of Heating. Atlanta: Refrigerating and Air-Conditioning Engineers Inc.
Belussi, L., Barozzi, B., Bellazzi, A., Danza, L., Devitofrancesco, A., Fanciulli, C., Ghellere, M., Guazzi, G., Meroni, I., Salamone, F., Scamoni, F., & Scrosati, C. (2019). A review of performance of zero energy buildings and energy efficiency solutions. Journal of Building Engineering, 25, 100772, ISSN 2352-7102. https://doi.org/10.1016/j.jobe.2019.100772.
Cao, X., Dai, X., & Liu, J. (2016). Building energy-consumption status worldwide and the state-of-the-art technologies for zero-energy buildings during the past decade. Energy and Buildings, 128, 198–213, ISSN 0378-7788. https://doi.org/10.1016/j.enbuild.2016.06.089.
Crawley, D., Pless, S., & Torcellini, P. (2009). Getting to net zero. ASHRAE Journal, 2009(Sept), 18–25.
DesignBuilder Software (2016) V4.7.0.027, DesignBuilder Software Ltd (www.designbuilder.co.uk), Gloucestershire, UK. Accessed Mar 2016.
DOE, Office of Energy Efficiency & Renewable Energy (n.d.) Building Performance Database, accessed January 2017 at https://energy.gov/eere/buildings/building-performance-database.
EPA United States Environmental Protection Agency, Calculations and references; CO2 emission factor, clean energy (2013). http://www2.epa.gov/energy/ghg-equivalencies-calculator-calculations-and-references. Accessed Mar 2016.
EPBD recast. (2018). Directive 2018/844/UE of the European Parliament and of Council, 30 May 2018 on the energy performance of buildings (recast); Official Journal of the European Union.
Geng, Y., Ji, W., Lin, B., Hong, J., & Zhu, Y. (2018). Building energy performance diagnosis using energy bills and weather data. Energy and Buildings, 172, 181–191, ISSN 0378-7788. https://doi.org/10.1016/j.enbuild.2018.04.047.
Hamdy, M., Hasan, A., & Siren, K. (2013). A multi-stage optimization method for cost-optimal and nearly-zero-energy building solutions in line with the EPBD-recast 2010. Energy and Buildings, 56, 189–203.
Hasan, A., Vuolle, M., & Sirén, K. (2008). Minimisation of life cycle cost of a detached house using combined simulation and optimisation. Building and Environment, 43(12), 2022–2034.
Iqbal, I., & Al-Homoud, M. (2007). Parametric analysis of alternative energy conservation measures in an office building in hot and humid climate. Energy & Environment, 42, 2166–2177.
Kapsalaki, M., & Leal, V. (2011). Recent progress on net zero energy buildings. Advances in Building Energy Research, 5(1), 129–162.
Kneifel, J. (2010). Life-cycle carbon and cost analysis of energy efficiency measures in new commercial buildings. Energy and Buildings, 42(3), 333–340.
Kurnitski, J., Saari, A., Kalamees, T., Vuolle, M., Niemelä, J., & Tark, T. (2011). Cost optimal and nearly zero (nZEB) energy performance calculations for residential buildings with REHVA definition for nZEB national implementation. Energy and Buildings, 43(11), 3279–3288.
Lam, J., Wan, K., Tsang, C., & Yang, L. (2008). Building energy efficiency in different climates. Energy Conversion and Management, 49, 2354–2366.
Levine, M., Urge-Vorsatz, D., Blok, K., Geng, L., Harvey, D., & Lang, S. (2013). Residential and commercial buildings. In B. Metz, O. R. Davidson, P. R. Bosch, R. Dave, & L. A. Meyer (Eds.), Climate change 2007: mitigation, Contribution of working group III to the fourth assessment report of the Intergovernmental D.H.W. Li et al. Energy 54 1e10 7 Panel on Climate Change (p. 387e446). Cambridge: Cambridge University Press.
Li, D., Yang, L., & Lam, J. (2013). Zero energy buildings and sustainable development implications – a review. Energy, 54, 1–10. https://doi.org/10.1016/j.energy.2013.01.070.
Marszal, A., & Heiselberg, P. (2011). Life cycle cost analysis of a multi-storey residential net zero energy building in Denmark. Energy, 36, 9 Pages 5600–5609.
Marta, S., & Graziano, S. (2013). Overview on life cycle methodologies and economic feasibility for nZEBs. Building and Environment, 67, 211–216, ISSN 0360-1323. https://doi.org/10.1016/j.buildenv.2013.05.022.
Menezes, A., Cripps, A., Buswell, R., Wright, J., & Bouchlaghem, D. (2014). Estimating the energy consumption and power demand of small power equipment in office buildings. Energy and Buildings, 75, 199–209, ISSN 0378-7788. https://doi.org/10.1016/j.enbuild.2014.02.011.
Mills, E., Friedman, H., Powell, T., Bourassa, N., Claridge, D., Haasl, T., & Piette, A. (2005). The cost-effectiveness of commercial-buildings commissioning a meta-analysis of energy and non-energy impacts in existing buildings and new construction in the United States. Lawrence Berkeley National Laboratory, Berkeley.
Peterson, K., Torcellini, P., Grant, R., Taylor, C., Punjabi, S., Diamond, R., Colker, R., Moy, G., Kennett, E. (2015). A common definition for zero energy buildings. U.S Department of energy, Energy Efficiency and Renewable Energy.
Pikas, E., Thalfeldt, M., & Kurnitski, J. (2014). Cost optimal and nearly zero energy building solutions for office buildings. Energy and Buildings, 74, 30–42.
Rahman, M., Rasul, M., & Khan, M. (2010). Energy conservation measures in an institutional building in sub-tropical climate in Australia. Applied Energy, 87, 2994–3004.
Reed Business Information (n.d.) RSMeans construction data http://www.rsmeans.com/index.asp (accessed 26.08.07).
Sartori, I., Napolitano, A., & Voss, K. (2012). Net zero energy buildings: a consistent definition framework. Energy and Buildings, 48, 220–232.
US DOE. (2008). Building Technologies Program, planned program activities for 2008–2012. US: Department Of Energy http://www1.eere.energy.gov/buildings/mypp.html. Accessed March 2016.