Sets of hourly data, representing the long term mean of both temperature and solar radiation, have been prepared for 21 U.S. metropolitan areas. The 8,760 sequential hourly values for all weather elements, including solar data, have been placed on magnetic tape for use in computer calculations of energy requirements.

Until recently, natural ventilation was adequate for the indoor air environment of buildings. Today, with added insulation and tighter building envelope standards, indoor air quality is more dependent on mechanical means. The conventional and new control strategies for indoor environments are reviewed, and the point is made that good indoor air quality is attainable with cost effective means if the proper constraints are maintained. To improve control strategies, several suggestions are made:< 1.

The first part of the study describes thermography generally as a method for non-destructive testing of a building envelope for thermal and air tightness properties. The study has resulted in a two stage testing method of which pressurizing is an essential part. The field study has shown that thetwo-stage method is suitable in detection of air leakages, showing that the major part of thermal defects in the building envelope are due to air leakages.

The report was prepared, at the request of the Environmental Protection Agency by the Committee on Indoor Pollutants. It outlines the scope of the problems regarding indoor pollutants and discusses their sources, their effects on human health and welfare, the technologies available for their control or abatement, and concerns about the effects of energy-conservation strategies on indoor concentrations of pollutants. It approaches the subject of indoor pollution from three viewpoints: 1. Physical factors, such as indoor pollutant sources and concentrations. 2.

Airflow inside air-conditioned rooms needs to be determined experimentally using test rooms. The test room dimensions vary because a test room must represent a section which is characteristic of the original room dimensions. The flow pattern is made visible; the velocities, and in some cases the gas concentration is measured. The experiments are done under thermal steady-state conditions. Some general results are:

The uncertainty of measurement results of air velocities in air-conditioned rooms generally is very high. A considerable part of the measurement errors are caused by the evaluation methods. It is shown that the accuracy of results can be ameliorated by using suitable statistical methods without increasing the effort. In this case binomial distribution gives better results thenGaussian distribution. To optimize the duration of measurements the most favorable reading interval must be determined. This time interval can be defined by the autocorrelation function of air velocity.

The study concerns the problems and prediction of room flow in air-conditioning. It is shown how difficult it is to form mathematical models, especially of the three-dimensional flow field occurring in practice. After basic definitions, an explanation of the influence of different air flow systems on the structure of room flow is given. The microstructure of the flowis so complex that a precise mathematical model formation seems to be impossible. Measurements on isothermal and models(reduced from the original)supply reliable three-dimensional results.

The structural design of glasshouses must provide for safety from wind damage while permitting maximum light transmission to the crop. A literature review of codes of practice, recommendations and data concerning wind loads on buildings showed several different procedures for describing the wind speed near the ground and predicting design pressures on low profile buildings.

A major study of wind loads on low-rise buildings has culminated in a relatively simple formulation for the wind loading for such structures. These proposed load requirements reflect many important aspects of the wind action, such as the predominance of unsteady loads, the reduction in effective loading with increased tributary area, and the provision of separate sets of loads, intended to be used together, for design of primary structural members.

The indoor air quality of six homes with gas and electric cooking and gas heating appliances was characterized to determine the level of gaseous and aerosol air pollutants from typical indoor combustion sources.