Measurements on three gas and two electric furnaces have been made to examine the field performance of these furnaces and their interactions with their forced-air distribution systems. The distribution systems were retrofitted as part of this study and the impact of retrofitting on furnace performance is discussed. In addition to field measurements, this paper will discuss how forced-air furnace systems are treated in proposed ASHRAE Standard 152P, and applies the resulting equations to the systems tested in the field.
Several empirical models of house air infiltration, available from the literature, were reviewed and evaluated. Without exception, the limitations, inherent in these models, were found to stem from inadequate accounting of the interactive forces controlling air infiltration. In general, each of the available models was found to accurately reflect the specific real case used for verification, but extension of the model to other structures and situations was found to be totally inadequate.
This paper presents an account, and results, from the U.S. Gas Industry's on-going program to assess the effectiveness of various retrofit actions toincrease the seasonal efficiency of central, gas-fired, space heating, residential furnace
This paper presents an account, and results, from the U.S. Gas Industry's on-going program to assess the effectiveness of various retrofit actions to increase the seasonal efficiency of central, gas-fired, space heating, residential furnac
A large number of developments are under way in the United States of America aimed at providing new high efficiency, space heating equipment for existing and for new single and two family dwellings. The majority of these developments are s