| 摘要 |
A method determining heat loss coefficient K of a premises, includes: in unoccupied premises, performing a campaign of measurements of at least one temperature inside the premises Ttk at closely-spaced time intervals over at least two successive time periods Dk corresponding to distinct heating powers Ptotk of the premises; determining temperature of outside air Tek at the same closely-spaced times; for each time period Dk, on the basis of evolution Tik(t) of a quantity Tik as a function of time, selecting a time interval Deltatk for which the evolution Tik(t) is substantially linear, then determining the slope alphak of the tangent to the evolution Tik(t) over this time interval Deltatk, and deducing the value of the heat loss coefficient K of the premises on the basis of the slopes alphak. |
