Modeling Method
In order to predict the energy saving of any improvement, a true and accurate energy model of the building must be made. Energy modeling of building is an important tool for understanding the requirement of efficient design and development during the building design process. The energy modeling can be explained as a comprehensive process, which includes all the possible parameters like weather, occupancies schedule, and building envelop, systems and more. It is used for new construction during the design phases, for remodeling existing buildings or for purpose built energy conservation efforts in existing structures.
API building analysis team work to optimize the energy efficiency of buildings by developing detailed computer models of the building (including its heating and cooling systems and all building components). Based on building architectural drawings we generate computer models of the new or existing buildings and perform hourly energy use calculations and simulate how the building will respond on an hour-by-hour basis to the local climatic conditions. Then various Energy Efficiency Measures (EEM) are analyzed for electricity and fuel use and based on the analyses, cost-effective strategies are identified. The EEMs may include efficient lighting and day lighting, assemblies for roofs, walls, and windows, optimum features of HVAC systems, central plant optimization, cost-effective controls and passive solar strategies.
API’s team carries out comparative energy simulation studies that analyze the energy and financial impact of various energy efficiency options in building envelopes and HVAC systems. An example of such studies is an analysis of glazing and frame options for a commercial building. This kind of analysis helps in deciding which option is best suited for the end user based on a full life cycle costing of the products.
Energy Simulation Services are provided either as a complete package or as a consulting service charged on an hourly basis. The individual arrangements can vary and are negotiable.


