Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Heat Transfer Characteristics of a Normal-Weight Concrete Wall. Final Report
Tests were conducted to evaluate thermal performance of three concrete walls. A normal-weight concrete wall, a structural lightweight concrete wall, and a low density concrete wall were tested in the calibrated hot box facility. This report covers experimental results for the normal-weight concrete wall. Test results for the lightweight structural concrete wall and low density concrete wall are covered in separate reports. The wall was subjected to steady-state, transient, and periodically varying temperature conditions. Steady-state tests were used to define heat transmission coefficients. Data obtained during transient and periodic temperature variations were used to define dynamic thermal response of the wall. Thus, effects of heat storage capacity could be evaluated. Conductivities derived from calibrated hot box tests were compared with results from hot wire tests. Hot wire tests were also used to evaluate the influence of moisture on thermal conductivity. Data obtained from dynamic tests were compared with steady-state calculations. Data obtained in this investigation are applicable to concrete wall assemblies commonly used in multi-family residential, commercial, and industrial structures. Results provide a data base for evaluation of building envelope performance in such structures, and are also applicable for defining thermal characteristics of concrete walls in passive solar systems. 23 refs., 34 figs., 19 tabs. (ERA citation 11:001003)
Heat Transfer Characteristics of a Normal-Weight Concrete Wall. Final Report
Tests were conducted to evaluate thermal performance of three concrete walls. A normal-weight concrete wall, a structural lightweight concrete wall, and a low density concrete wall were tested in the calibrated hot box facility. This report covers experimental results for the normal-weight concrete wall. Test results for the lightweight structural concrete wall and low density concrete wall are covered in separate reports. The wall was subjected to steady-state, transient, and periodically varying temperature conditions. Steady-state tests were used to define heat transmission coefficients. Data obtained during transient and periodic temperature variations were used to define dynamic thermal response of the wall. Thus, effects of heat storage capacity could be evaluated. Conductivities derived from calibrated hot box tests were compared with results from hot wire tests. Hot wire tests were also used to evaluate the influence of moisture on thermal conductivity. Data obtained from dynamic tests were compared with steady-state calculations. Data obtained in this investigation are applicable to concrete wall assemblies commonly used in multi-family residential, commercial, and industrial structures. Results provide a data base for evaluation of building envelope performance in such structures, and are also applicable for defining thermal characteristics of concrete walls in passive solar systems. 23 refs., 34 figs., 19 tabs. (ERA citation 11:001003)
Heat Transfer Characteristics of a Normal-Weight Concrete Wall. Final Report
M. G. Van Geem (Autor:in) / A. E. Fiorato (Autor:in) / J. T. Julien (Autor:in)
1983
98 pages
Report
Keine Angabe
Englisch
Transient Heat Transfer Studies Final Report
| NTIS | 1966