Changes between Version 3 and Version 4 of doc/app/indoorequ
- Timestamp:
- Jul 30, 2019 1:21:34 PM (6 years ago)
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doc/app/indoorequ
v3 v4 68 68 }}} 69 69 70 The complete ground surface of a building involves every storey gets a ground surface. To represent this, a net floor area is calculated. The height of the storey ''h'',,storey,, is a parameter of USM 70 The complete ground surface of a building involves every storey gets a ground surface. To represent this, a net floor area is calculated. The height of the storey ''h'',,storey,, is a parameter of USM. 71 71 72 72 {{{ … … 85 85 \end{align*} 86 86 }}} 87 The ratio of effective area Λ𝐴𝑇 and the dynamic parameter of specific effective surface 𝑎 are parameters of the USM\\87 The ratio of effective area ''Λ'',,𝐴𝑇,, and the dynamic parameter of specific effective surface 𝑎 are parameters of the USM.\\ 88 88 89 89 = Model scheme = … … 95 95 The solution is based on a Crank-Nicolson scheme for a one-hour time step. Since the calculations are based on heat transfer coefficients, ''H'' [W/K] all figures and equations are based on heat transfer coefficients. This is the reciprocal value of ''R'' and takes short wave, long wave, convective and conductive heat transfer and heat transport (by air) into account. 96 96 97 97 98 '''Resistance and capacity calculations'''\\ 99 98 100 From a numerical perspective, this network consists of five reciprocal resistances ''H'' and one heat storage capacity ''C'':\\ 99 101 ''H'',,v,, is the heat transport by ventilation between surface-near exterior air ''ϑ'',,n,, and indoor air ''ϑ'',,i,,. It is calculated with, … … 171 173 }}} 172 174 175 173 176 '''Thermal load and temperature calculations'''\\ 174 177 … … 251 254 }}} 252 255 256 253 257 '''Heating and Cooling Demand'''\\ 254 258 … … 320 324 }}} 321 325 In this case, the set indoor temperature is not reachable. It will get higher than the requested indoor temperature in summer (cooling) cases and colder in winter (heating) cases. \\ 326 327 322 328 '''Heat fluxes and waste heat'''\\ 329 323 330 ''q'',,wall,win,, is the heat flux through the walls and windows. 324 331 {{{ … … 337 344 The anthropogenic heat parameter for heating c_(waste,heat) and cooling c_(waste,cool) are parameters of USM.\\ 338 345 339 TABLE 1 346 [[Image(table1.png,500px, border=1)]]
