Intermittent Heating and Cooling Load Calculation Method -Comparing with ISO 13790 Lee, Sang-Hoon;
College of Architecture, Georgia Institute of Technology, Atlanta, GA, US Abstract The intermittent heating and cooling energy need calculation of the ISO 13790 monthly method was examined. The current ISO 13790 method applies a reduction factor to the continuous heating and cooling need calculation result to derive the intermittent heating and cooling for each month. This paper proposes a method for the intermittent energy need calculation based on the internal mean temperature calculation. The internal temperature calculation procedure was introduced considering the heat-balance taking into account of heat gain, heat loss, and thermal inertia for reduced heating and cooling period. Then, the calculated internal mean temperature was used for the intermittent heating and cooling energy need calculation. The calculation results from the proposed method were compared to the current ISO 13790 method and validated with a dynamic simulation using EnergyPlus. The study indicates that the intermittent heating and cooling energy need calculation method using the proposed model improves transparency of the current ISO 13790 method and draws more rational outcomes in the monthly heating and cooling energy need calculation.
Normative Energy Model;Building Energy Performance;Thermal Energy Need;
A GIS-based Energy Balance Modeling System for Urban Solar Buildings, Energy Procedia, 2015, 75, 2946
Corrado, V., Mechri, H. E., & Fabrizio, E. (2007). Building energy performance performance assessment thourgh simplified models: application of the ISO 13790 quasi-steady sate method. Paper presented at the IBPSA, Beijing, China.
Dijk, H. v., Spiekman, M., & Wilde, P. d. (2005). A monthly method for calculating energy performance in the context of European building regulations. Paper presented at the IBPSA, Montreal, Canada.
Hogeling, J., & Dijk, D. v. (2008). P60 More information on the set of CEN standards for the EPBD.
ISO. (2008). ISO 13790:2008 Energy performance of buildings - Calculation of energy use for space heating and cooling.
Jokisalo, J., & Kurnitski, J. (2007). Performance of EN ISO 13790 utilisation factor heat demand calculation method in a cold climate. Energy and Buildings, 39, 236-247.
Kokogiannakis, G., Strachan, P., & Clarke, J. (2008). Comparison of the simplified methods of the ISO 13790 standard and detailed modelling programs in a regulatory context Journal of Building Performance Simulation, 1(4), 209-219.
United Nations Environment Programme. (2007). Buildings and Climate Change: Status, Challenges and Opportunities: UNEP/ Earthprint.