AIVC - Air Infiltration and Ventilation Centre

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Low energy new housing at little or no additional cost.

The cost of higher insulation measures in all new house types may be paid for by savings from smaller, simpler and more efficient heating systems. These houses are more comfortable to live in, as well as up to 50% cheaper to heat.

Energy analysis and optimal insulation thickness.

The problem of optimal insulation thicknesses is one of the simplest that can be addressed by energy analysis. The authors begin with a simple analytical approach, and go on to describe detailed numerical work, based in the definition and parameterisation of a standard dwelling. Sensitivity of the results to large uncertainties in embodied energy data and building lifetime are investigated. The first conclusion is that insulation thicknesses in UK buildings are suboptimal in energy terms. This conclusion appears to be robust.

Natural cross ventilation for refrigerative cooling reduction in a well insulated apartment.

In this paper the energy impact of natural cross ventilation is examined conducting a set of crossventilation experiments in a well insulated apartment of a 5-storey building. The experimental resultscompared with simulation results derived from the combined use of the multizone air flow modelCOMIS and the thermal model Suncode.A 24-hour lasting natural cross ventilation experiment was conducted, to monitor thermal comfortventilation mainly during the day and night time cooling ventilation.

The sound insulation provided by windows.

The sound insulation provided by similar types of windows varies considerably. This paper describes experiments on a number of elements which affect sound insulation, including the sealing of openable panes, the type of frame material, the size of the window panes, and the spacing of panes in multiple pane systems. It identifies the main factors and lists the potential insulation values for various types of window. This paper will be of interest to architects, planners and acoustic consultants.