Full Description

Presents response analysis of transfer functions relating indoor and outdoor temperatures (as the input signals) to heat flow through the building envelope (as the output signals). The frequency-domain solutions for foundation heat transfer are provided for both slab-on-grade floors and basements. The spectral analysis is then conducted using Bode and Nyquist diagrams to depict the variation of the magnitude and phase lag of the frequency-domain transfer functions. In particular the spectral sensitivity of building foundation response to periodic cycles, such as annual and diurnal cycles, is investigated.

KEYWORDS: year 1995, heat flow, foundations, ground, algorithms, coefficient of conductivity, slabs, basements, cycles, calculating, room temperature, outdoor temperature, buildings

Citation: ASHRAE Trans. 1995, Vol.101, Part 1, Paper number 3864, 355-369, 9 figs., 1 tab., refs.