Open AccessSingle Objective Optimization of Net Zero Energy Residential Building in Tropical Climate
Author(s) -
Abdul Mutalib Leman,
Hafiz Zafar Sharif,
Aissa Nasser Krizou,
M. T. A. Al-Tarawne,
Muthuraman Subbiah,
Mehdi Farsi,
A. R. Irfan
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/864/1/012015
Subject(s) - hvac , zero energy building , roof , building envelope , ashrae 90.1 , building energy simulation , ventilation (architecture) , efficient energy use , energy conservation , environmental science , envelope (radar) , energy consumption , engineering , automotive engineering , simulation , air conditioning , civil engineering , meteorology , energy performance , thermal , electrical engineering , mechanical engineering , telecommunications , radar , physics
The Building sector is the largest consumer of energy worldwide. Net Zero Energy Residential Building (NZERB) is one of the prudent approaches to reduce pressure on primary sources of energy. The main objective of this study is to use Taguchi simulation based on orthogonal arrays approach to optimize thermal envelope of a building, SEER value of HVAC system, lighting power density, and ventilation level to reduce the Building Energy Intensity (BEI) 50% lower than the base case building according to International Energy Conservation Codes 2015. In this study whole building energy simulation was performed by Hourly Analysis Energy Program and PVWatts calculator was used to estimate the size of the PV system for balancing the energy demand of the house. The results of Taguchi simulation approach show that by decreasing the U value of wall, windows, roof, floor to 0.1, 0.8, 0.1, 0.2 W/m2. °K respectively and ventilation rate 0.15 l/s-m2, lights of 110 lm/W and SEER of the HVAC system 4 (W/W option) reduce BEI from 147.78 kWh/m2/year for base case building to 67.085 kWh/m 2 /year for optimal design case. PV system size estimation was performed with PVWatts calculator. PV Watts recommended the size of 13kW DC rating system (open rack type) of 15% efficiency for the weather of Johor Bahru to meet the annual energy demand of the proposed optimal building design.