IBPSA2003

DIAL-Europe  is  the  final  product  of  a  three  year European project that ended in March 2003. During this project the “Swiss” tool LesoDIAL, developed during the IEA task 21 in 1999, has been expanded with, among other items, an artificial lighting module. The objective of this module is to support artificial lighting design for architects in the early  design stage.

This   paper   describes   a   simulation   model   for predicting end-use energy in residential sectors of a city or region. In this model, the annual energy consumption of a dwelling is simulated from the occupants’ schedule of living activities, weather data and energy efficiencies of appliances and dwellings. By summing up the simulation results for various household categories, total energy consumption for the residential sector in a region can be estimated. In this paper, the energy consumption for Osaka City is simulated by this model. The result is compared with statistical data.

This   paper   presents   a   district   energy   system simulation model in which the energy flow of a district is modeled as the sum of total energy flow in each building. By using this model, various kinds of energy supply systems can be evaluated taking into account the relationship among performance  of energy supply systems, available technologies, and conditions of targeted districts, such as characteristics of energy demand, size and arrangement of buildings.

A set of geometry translation tools and capabilities have been developed to increase base efficiencies in the simulation of both the internal and external environment of buildings. The tools allows us to build a 3D model in one package and then translate the geometry for use in a number of other simulation packages that we use. Though not a unique concept, it does allow the use of preferred software for undertaking the building of the 3D model.

The computer software AUSSSM TOOL, originating from the methodology of the revised-Architectural- Urban-Soil-Simultaneous Simulation Model (revised-AUSSSM), was developed by adopting the Graphical User Interface (GUI) features to support users, who can use the interactive computer display for parameter settings, simulating, visualizing, and reporting the numerical calculation results instead of complicated programming. The purpose of the AUSSSM TOOL is to determine quantitative parameters such as air temperature, exhaustive heat from air conditioning systems, energy heat balance, etc.

With the advancement of technology, and with the widespread availability  of  simulation  tools,  we  are forced to consider which simulation tool would be appropriate for a particular problem. The seemingly trivial decision is in reality not very easy to make. And this leads to the practice of using the most sophisticated tool available for every problem. The levels of resolution and complexity are directly related to the accuracy of the simulation and to the total cost of the simulation process. A simple tool may be cheaper, but there is a high  risk  of inaccuracy.

People that work in office buildings have new needs in terms of comfort within their work place. We suggest to develop a multicriteria office cell façade, allowing to control luminous, thermal and airflow parameters. It will be controlled to offer global comfort to the office cells occupants.

The Energy Resources Center at the University of Illinois at Chicago conducted an energy assessment of the John G. Shedd Aquarium and Oceanarium to increase the energy efficiency of the facility, while decreasing the operating costs.  Part of this effort included determining the feasibility of implementing a cogeneration system as part of the detailed energy assessment for the facility.

This paper describes the development of a design tool for the calculation of the thermal energy potential of a so-called asphalt collector. Two types of numerical models have been developed and validated against experimental results from a full-scale test-site. The validation showed to be a tedious procedure due to the complexity of the full-scale testing of this type of systems.

The  paper  describes  the  use  of  the  theory  of tolerances in thermal network models that are built as electric circuits. A principle of the method and main equations are given. A calculation of new values of model parameters is based on the assessment of relative sensitivities of model elements. The method is explained in a case study where thermal comfort is analysed in a designed office building in summer. Tolerances make possible to quickly find a new parameter value for the desired air temperature decrease.