Test-cell experiment for the determination of building thermal system parameters
A test cell experiment is conducted to examine processes for determining building thermal system parameters. Building Element Vector Analysis (BEVA) is an hour by hour simulation of energy performance using the building thermal system parameters that represent the building thermal characteristics, including the loss coefficient and the dynamic effects of thermal mass, solar gains, and mass coupling to indoor air, solar gain, and internal gains. The system parameters are two-dimensional vectors with real and imaginary parts in the frequency domain. They can be calculated from material properties and building descriptions by component by component vector addition. Another way of determining the system parameters is to reproduce them inversely from short-term performance data. The building energy performance data from short term experiments are regressed to produce regression coefficients directly related to the building thermal system parameters. Indoor measurement of the test cell provides the indoor temperature responses to sinusoidal heat sources for profiled frequencies. Outdoor measurement provides the responses of auxiliary heating to indoor and outdoor temperatures and solar radiation for the zero and diurnal frequencies.
- Research Organization:
- Colorado Univ., Boulder (USA)
- OSTI ID:
- 7226559
- Resource Relation:
- Other Information: Thesis (Ph. D.)
- Country of Publication:
- United States
- Language:
- English
Similar Records
A graphical method for passive building energy analysis
Frequency-domain approach to passive building energy analysis