7 Tools for Net Zero Energy by Green Architect
7 Tools for Net Zero Energy
We have discussed in other articles about definitions, terms and the broad and misconceptions of Net Zero Energy, in this article I am focusing on the Tool often used in designing the parametric for Net Zero Energy buildings or communities. The 7 Tools for Net Zero Energy are soft-wares, such as Dynamic Energy Modeling, Air Flow Analysis, Wind Driven Rain, Day lighting, Finite Element Modelling, Sun and Shadow Studies. Solar Thermal Systems Design, Photo voltaic System Design, Rainwater Harvesting System Design, Ecotect, Vasari Design Studio and Therm
Soft-wares-7 Tools for Net Zero Energy Dynamic Energy Modelling
DesignBuilder, a software developed recently. It is a state of the art software tool for checking building energy, building carbon foot print, lighting and comfort levels. The software simulates real time situation and compares performance levels of each parametric. It interfaces with by EnergyPlus a software developed by DOE, Department of Energy, USA.
DesignBuilder gives environmental performance data during all stages of the design process. It is a great contribution to the 7 Tools for Net Zero Energy.
TOOL 1) Air Flow Analysis
CFD, Computerized Fluid Dynamics is a tool to analyze the flow of air flow and heat transfer within the building and in the external sides of the building. This studies can be used for Mechanical Engineers for air conditioning studies, for ventilation purposes for architects and the wind load on external cladding and external microclimate where heat island are detected and it can be eliminated by designing the layouts. These are some of issues CFD will address:
a) temperature distribution along the atrium, b)the adequacy of the diffusers for air distribution, c) adequacy of air conditioning diffusers and outlets for comfort, d)the adequacy of natural ventilation, e)the effect of wind speed in the locality affected by the shape of the building f) stale air islands are discovered.
TOOL 2) Wind Driven Rain, WDR
The negative effect of humidity and hygrothermal situation are predicted early, that which affects the durability of buildings. The covered area for the pedestrians, protection during a storm is studied. by studying the intensity and spiral distribution of driving rain.
Tool 3) Finite Element Modelling
Soft-wares such as Therm 6.3 and Window 5 are state of the art computer soft-wares that analyses details of building, windows, walls, sills etc to discover sources of losses of heat (during winters) or sources of heat is gain(during summers)
This software was developed by Lawerence Berkely National Laboratory
Tool 4) Sun and Shadow Studies
The soft-wares are google sketch up,Ecotect,Rhino/Grasshoper, and Honeybee/Ladybug
Understanding the building sun and shadow will help to discover sides of the building that needs to insulated from heat gain or heat loss.The shadow analysis will help to evaluate the effect of window and shading devices that keep the building comfortable.
Tool 5) Solar Thermal Systems Design
Softwares used are T*SOL, PRO.It is a program that simulates accurately the heat gained over the year and calculates the amount of energy that is needed to maintain comfort
Tool 6) Day lighting Soft-wares
Daylight factors, dynamic and climate based indices(Spatial daylight automation, useful daylight illumination, daylight availability) are studied . Standard report detailing eligibility for Energy and Environmental performance in Leed. are provided. And Photo realistic situation and daylight simulation are studied.
Tool 7) Photo-voltaic System Design
PV*SOL is a software that is used to study the optimum amount of solar panels that are needed .
Call us at +60172246901 or contact us via our email firstname.lastname@example.org for further queries with respect to designing for Net Zero Energy Designing or pertaining to queries on the above software 7 Tools for Net Zero Energy
Prepared by Architect Perumal Nagapushnam