This paper describes the implementation of long wave radiation (LWR) exchange as part of a co-simulation process of an urban scale simulation program, CitySim, and a building scale program, EnergyPlus. This coupling process was achieved through the use of functional mockup units (FMU) to exchange various weather, load, and environmental information between the two simulation engines. LWR is an ...

In addition to the MPC(Model Predictive Control) study in estimating in advance the control applicable to actual buildings based on a model in which a simulation tool is used, a variety of studies, including temperature control, lighting control, and operation strategy, have been conducted recently. Actual buildings are controlled and operated in the integrative mode, and, therefore, the impact...

Ventilated windows have shown great po tential in conserving energy in buildings and provide fresh air to improve indoor air qua lity. This paper reports our effort to use EnergyPlus to simulate the energy performance of a dual airflow window under different climate. Our investigation first develope d a network m odel to accoun t for th e twodimensional heat transfer in the window sy stem and i...

Repeated modifications of multiple design parameters are required to optimize daylighting system design. However, a large number of optional design parameters increase the computation time. This research developed a simulation-based model to evaluate daylighting system design based on system daylighting and thermal performance. The model utilized the prediction methods to speed up computation. ...

Community-scale modeling is a rapidly growing area of interest for planners, policy makers, and researchers. There are, however, few software tools that enable large-scale parametric studies of communities based on detailed energy models of buildings. This paper presents a tool called Params-NZP for automatically generating and running full EnergyPlus models for the parametric analysis of entir...

The current practice with building energy simulation software tools requires the manual entry of a large list detailed inputs pertaining to characteristics, geographical region, schedule operation, end users, occupancy, control aspects, and more. While these allow evaluation consumption various combinations parameters, information considering number parameters related design global optimization...

This paper addresses optimal architectural design using BIM at the design stage. We present a comparative study of the differences between datacentric and process-driven interoperability approaches during the design phases. The authors will elaborate on two approaches, summarize their consequences, and present a real application of the approach using a DAI (Design Analysis Integration) prototyp...

The airflow network model in EnergyPlus provides the ability to simulate multizone wind-driven airflows. The model is also able to simulate the impacts of forced air distribution systems, including supply and return air leaks. The air distribution system portion of the model is currently applicable for constant-air-volume systems. Future enhancements will include adding hybrid ventilation contr...