Performance-rating-based approach to formulate a new envelope index for commercial buildings in perspective of energy efficiency and thermal comfort

Abstract Taiwan's building envelope thermal performance assessment method (ENVLOAD) was implemented in 1995. The lack of regard for thermal comfort in ENVLOAD has caused ENVLOAD certified buildings to have indoor areas that cause thermal discomfort, which leads to an increase in the energy end-use of the building during actual operation stage. This study aims to develop a new building envelop energy performance index by simultaneously analyzing the influence of energy consumption and thermal comfort. Latin hypercube sampling method is adopted to generate various building envelope samples for building energy simulation to construct the evaluation equations. By comparing to each sample’s annual sensible cooling energy against its own baseline case, indices of performance ratings (PR) based on the dry-bulb temperature and the operative temperature control are proposed. Another aim is to establish an algorithm to convert the proposed index to the previous ENVLOAD benchmark so that the new index can be directly applied to the existing building energy conservation regulations. The study found that the standard regression coefficient of the glazing's thermal insulation property rises from 0.11 to 0.20 when the control scheme switches from dry-bulb control to operative temperature control. Suggesting that the thermal performance requirements for the openings of building envelopes are more important for the new index based on thermal comfort, and that designers need to pay more attention to the control of indoor solar radiation heat gain.

[1]  Ruey Lung Hwang,et al.  Simplification and adjustment of the energy consumption indices of office building envelopes in response to climate change , 2018, Applied Energy.

[2]  S. N. Garg,et al.  Different glazing systems and their impact on human thermal comfort—Indian scenario , 2008 .

[3]  Ruey Lung Hwang,et al.  Building envelope regulations on thermal comfort in glass facade buildings and energy-saving potenti , 2011 .

[4]  Navid Delgarm,et al.  Multi-objective optimization of building energy performance and indoor thermal comfort: A new method using artificial bee colony (ABC) , 2016 .

[5]  Maria Wall,et al.  Energy Simulations for Glazed Office Buildings in Sweden , 2008 .

[6]  Bjarne W. Olesen,et al.  Effect of Set-point Variation on Thermal Comfort and Energy Use in a Plus-energy Dwelling , 2016 .

[7]  Ming-Der Yang,et al.  Multiobjective optimization design of green building envelope material using a non-dominated sorting genetic algorithm , 2017 .

[8]  Mengjie Song,et al.  PMV-based dynamic optimization of energy consumption for a residential task/ambient air conditioning system in different climate zones , 2019, Renewable Energy.

[9]  Dongmei Pan,et al.  A numerical study on influences of building envelope heat gain on operating performances of a bed-based task/ambient air conditioning (TAC) system in energy saving and thermal comfort , 2017 .

[10]  Athanasios Tzempelikos,et al.  Comfort and energy performance analysis of different glazing systems coupled with three shading control strategies , 2018 .

[11]  Di Wang,et al.  Application of multi-objective genetic algorithm to optimize energy efficiency and thermal comfort in building design , 2015 .

[12]  Athanasios Tzempelikos,et al.  Indoor thermal environmental conditions near glazed facades with shading devices - Part II: Thermal comfort simulation and impact of glazing and shading properties , 2010 .

[13]  Alessandro Prada,et al.  Passive performance of glazed components in heating and cooling of an open-space office under controlled indoor thermal comfort , 2014 .

[14]  Shiming Deng,et al.  Application of TOPSIS method in evaluating the effects of supply vane angle of a task/ambient air conditioning system on energy utilization and thermal comfort , 2016 .

[15]  Jean-Louis Scartezzini,et al.  Passive design optimization of newly-built residential buildings in Shanghai for improving indoor thermal comfort while reducing building energy demand , 2017, Energy and Buildings.