This paper describes the techniques used within the ESP system to represent and solve the heat and mass conservation equations relating to combined building and plant systems. In particular, it describes the equation-sets used to represent inter-zonal (building) and inter-component (plant) fluid flow and the method used for the integration of the non-linear heat and mass flow equations. By means of a case study, the application in a realdesign context is demonstrated.
Measurements of air change rates, carbon dioxide concentrations, room air temperatures and relative room air humidities in bedrooms of five well tightened dwellings were carried out in October 1989. With the results of the measurements and also based on simulation calculations, recommendations for an optimal window opening behaviour in bedrooms with the intention of saving energy and of providing sufficient indoor air quality were made.
Most large-scale investigations of sick building syndrome (SBS) have relied on comparisons among buildings, which necessarily involve many confounding factors. We are now conducting a study based on systematic modification of environmental conditions in a building, with double-blind monitoring of occupants' responses to the changes. Different changes (e.g. repairing or cleaning the ventilation systems, improving office cleaning), are carried out in different rooms in a series of study "modules", including a control module.
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