An optimal operational planning system with a userfriendly interface using an object-oriented framework is developed for the purpose of determining operational strategies of energy supply plants in a simple and rational manner on personal computers.

This paper explains the development of a dedicated configuration tool for the HVACSIM+ simulation environment. This computer-based tool eases configuration by exploiting a visual metaphor of a simulation subject. This paper also explains the configuration tool's method of development, its functionality, and suggests some potential applications which could benefit from an object-oriented development. The tool was developed with object-oriented technology in 1994.

It is required that the urban air temperature is estimated on the average and macroscopically for studying the urban thermal environmental problems in summer. The diurnal variations of urban air temperature and heat budget components are investigated using one dimensional heat budget model. The evaporative efficiency and the anthropogenic heat were estimated by means of inverse operation using the observed air temperature. Good coincidence was obtained with the observed air temperature and the calculated.

The objective of the work presented in this paper is to develop a building performance assessment tool that will assist the design process rather than be aimed at giving endorsement to a completed design. he paper discusses the concepts behind the ongoing development of this new assessment tool. To effectively place it into the designer’s hand, this tool is self-contained – the simulation programs are directly linked to the assessment modules.

A building simulation program has been developed and a model of a standard Swedish single family house has been built up. The model uses an explicit finite-difference method to calculate the temperatures of the next time step. The main output from the programme is energy consumption values and temperatures. The simulation program can either be run as a real time simulation tool (SPsim) or as a pure simulation tool (SPber). The paper is describing the general concept of the models used. It also gives examples of results obtained by using the program.

Addressing the complexity underlying design questions does not appear to be sufficient reason for simulation to be widely deployed in design practice. Useful insights must be delivered within the context of the time and resource constraints of the design process. This paper reports on recent work which addresses this issue through a computer-based project management environment.

This paper presents the process followed for defining the features of the next-generation HOT2000 simulator, and the conclusions drawn at the workshops, concerning the most appropriate modelling approaches. It also summarizes the survey of existing programs, and presents the rational for the selection of the starting point for the HOT2000 simulator

The physical space we experience and live in on a daily basis is controlled by the physical laws of nature, which are identified through science. For the most part, scientific data visualization has been used to present a clear and faithful representation of aspects of our physical world which are impossible to perceive. With the explosion of the Internet and recent programming technologies comes an emerging number of web sites that publish scientific, economic, physical and other types of data which describe our physical world and are updated in real-time.

This paper describes a simulation based method for the integrated performance appraisal of buildings incorporating daylight utilisation technologies. The method utilises the ESP-r [1] and RADIANCE [2] systems, running synchronously or in pre-simulation mode, to construct a multi-variate performance picture for a range of models representing alternative design intents.

The ISE (Intelligent Simulation Environment) concept, developed by CSTB since the early nineties, has been applied to the development of various Simulation Environments (such as IISiBat III for TRNSYS or IISiBat II for COMIS). This concept has also been used to develop a prototype which aims at helping researchers to document their models and to store them in a neutral way, within structured model libraries [1]. The Simulation Environments developed are very often seen by the users as “only” userfriendly interfaces, whereas they are more than that.