Development of periodic response factors for use with the radiant time series method

Conference · Thu Jul 01 04:00:00 EDT 1999

OSTI ID:20085639

Spitler, J D; Fisher, D E

Harris and McQuiston (1988) developed conduction transfer function (CTF) coefficients corresponding to 41 representative wall assemblies and 42 representative roof assemblies for use with the transfer function method (TFM). They also developed a grouping procedure that allows design engineers to determine the correct representative wall or roof assembly that most closely matches a specific wall or roof assembly. The CTF coefficients and the grouping procedure have been summarized in the ASHRAE Handbook--Fundamentals (1989, 1993, 1997) and the ASHRAE Cooling and Heating Load Calculation Manual, second edition. More recently, a new, simplified design cooling load calculation procedure, the radiant time series method (RTSM), has been developed. The RTSM uses periodic response factors to model transient conductive heat transfer. While not a true manual load calculation procedure, it is quite feasible to implement the RTSM in a spreadsheet. To be useful in such an environment, it would be desirable to have a pre-calculated set of periodic response factors. Accordingly, a set of periodic response factors has been calculated and is presented in this paper.

• Research Organization: Oklahoma State Univ., Stillwater, OK (US)
• OSTI ID: 20085639
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
CALCULATION METHODS
COOLING LOAD
HEAT TRANSFER
MATHEMATICAL MODELS
NUMERICAL DATA
ROOFS
THERMAL CONDUCTION
WALLS