Design of heating systems.


Numerical simulation of indoor turbulent air flows caused by cross-ventilation and its model experiments.

Since thermal comfort on human body is influenced by the local air flow speed, it is needed to estimate the distribution of air flow speed in a room for the "effective ventilation". Numerical solution of the equations for the motion of 3-dimensional turbulent air flow and model experiments are conducted for this purpose. The experiment model is a single room model house with 2 windows on the opposite walls. It is actually ventilated by the natural wind. Non-directivity thermistor anemometers are used to measured the 3-dimensional distribution of indoor air flow speed.

Building energy and air flow simulation.

This paper outlines the complexity of the building energy modelling problem and describes the ESP program and, in particular, its air flow modelling capabilities. The issue of "technology transfer" is highlighted and mention made of the recently established RIASEnergy Design Advisory Service, a Government-funded technology transfer initiative to provide Scottish building designers with subsidised access to advanced energy simulation technology. Three "case studies" from EDAS work are presented, outlining some of thepractical applications of the ESP program.