www/includes/formulas.php

changeset 657
a5ade45597d8
parent 655
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equal deleted inserted replaced
656:a4a9f6ded485 657:a5ade45597d8
183 183
184 184
185 function abvol($og, $fg) { 185 function abvol($og, $fg) {
186 $factor = $og * 3157 * pow(10, -5) + 9.716 * pow(10, -2); 186 $factor = $og * 3157 * pow(10, -5) + 9.716 * pow(10, -2);
187 return ($og * 1000 - $fg * 1000) * $factor; 187 return ($og * 1000 - $fg * 1000) * $factor;
188 //if ((4.749804 - $fg) <> 0)
189 // return 486.8693 * ($og - $fg) / (4.749804 - $fg);
190 //return 0;
191 } 188 }
192 189
193 190
194 /* 191 /*
195 * Kleurwerking naar SRM 192 * Kleurwerking naar SRM
298 $sgfactor = ($kookdichtheid - 1.05) / 0.2 + 1; 295 $sgfactor = ($kookdichtheid - 1.05) / 0.2 + 1;
299 $hopratefactor = (($cfactor * $ibu) / 260) + 1; // $ibu is Tinseth bitterness. Weird. 296 $hopratefactor = (($cfactor * $ibu) / 260) + 1; // $ibu is Tinseth bitterness. Weird.
300 $tempfactor = (32.8/550)*0.02+1; 297 $tempfactor = (32.8/550)*0.02+1;
301 $ibu = ($boilfactor * $alpha * $mass * 0.1) / ($volume * $sgfactor * $hopratefactor * $tempfactor); 298 $ibu = ($boilfactor * $alpha * $mass * 0.1) / ($volume * $sgfactor * $hopratefactor * $tempfactor);
302 } 299 }
303 /* TODO: Noonan and Mosher */
304
305 return $ibu; 300 return $ibu;
306 } 301 }
307 302
308 303
309 304

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