A Fourier series model to predict hourly heating and cooling energy use in commercial buildings with outdoor temperature as the only weather variable

Conference · Wed Nov 01 04:00:00 EST 1995

OSTI ID:113301

Dhar, A; Reddy, T A; Claridge, D E ^[1]

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1. Texas A and M Univ., College Station, TX (United States). Energy Systems Lab.

Accurate modeling of hourly heating and cooling energy use in commercial buildings can be achieved by a Generalized Fourier Series (GFS) approach involving weather variables such as dry-bulb temperature, specific humidity and horizontal solar flux. However, there are situations when only temperature data is available. The objective of this paper is to (1) describe development of a variant of the GFS approach which allows modeling both heating and cooling hourly energy use in commercial buildings with outdoor temperature as the only weather variable and (2) illustrate its application with monitored hourly data from several buildings in Texas. It is found that the new Temperature based Fourier Series (TFS) approach (1) provides better approximation to heating energy use than the existing GFS approach, (2) can indirectly account for humidity and solar effects in the cooling energy use, (3) offers physical insight into the operating pattern of a building HVAC system and (4) can be used for diagnostic purposes.

• OSTI ID: 113301
• Report Number(s): CONF-950336--; ISBN 0-7918-1300-2
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
COMMERCIAL BUILDINGS
COMPUTERIZED SIMULATION
ENERGY CONSERVATION
ENERGY CONSUMPTION
HOURLY VARIATIONS