Hoone energiatõhususe arvutamise metoodika · Hoone energiatõhususe arvutamise metoodika
Hoone energiatõhususe arvutamise metoodika Art. 21Ventilatsioonisüsteemi abiseade
2. jagu Ventilatsioonisüsteem
(1) Vahesoojuskandjaga soojustagasti pumba elektrivõimsus P hr (kW) arvutatakse järgmise valemiga: iVBORw0KGgoAAAANSUhEUgAAAOAAAAA5CAMAAAAYwtc0AAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJ bWFnZVJlYWR5ccllPAAAA59pVFh0WE1MOmNvbS5hZG9iZS54bXAAAAAAADw/eHBhY2tldCBiZWdp bj0i77u/IiBpZD0iVzVNME1wQ2VoaUh6cmVTek5UY3prYzlkIj8+IDx4OnhtcG1ldGEgeG1sbnM6 eD0iYWRvYmU6bnM6bWV0YS8iIHg6eG1wdGs9IkFkb2JlIFhNUCBDb3JlIDUuMC1jMDYwIDYxLjEz NDc3NywgMjAxMC8wMi8xMi0xNzozMjowMCAgICAgICAgIj4gPHJkZjpSREYgeG1sbnM6cmRmPSJo dHRwOi8vd3d3LnczLm9yZy8xOTk5LzAyLzIyLXJkZi1zeW50YXgtbnMjIj4gPHJkZjpEZXNjcmlw dGlvbiByZGY6YWJvdXQ9IiIgeG1sbnM6eG1wTU09Imh0dHA6Ly9ucy5hZG9iZS5jb20veGFwLzEu MC9tbS8iIHhtbG5zOnN0UmVmPSJodHRwOi8vbnMuYWRvYmUuY29tL3hhcC8xLjAvc1R5cGUvUmVz b3VyY2VSZWYjIiB4bWxuczp4bXA9Imh0dHA6Ly9ucy5hZG9iZS5jb20veGFwLzEuMC8iIHhtbG5z OmRjPSJodHRwOi8vcHVybC5vcmcvZGMvZWxlbWVudHMvMS4xLyIgeG1wTU06RG9jdW1lbnRJRD0i eG1wLmRpZDozOEZFOEM1MTBDRDcxMUU1QTIxNkE0NDY3QzFCQUM1OSIgeG1wTU06SW5zdGFuY2VJ RD0ieG1wLmlpZDozOEZFOEM1MDBDRDcxMUU1QTIxNkE0NDY3QzFCQUM1OSIgeG1wOkNyZWF0b3JU b29sPSJBY3JvYmF0IFBERk1ha2VyIDEwLjAgZm9yIFdvcmQiPiA8eG1wTU06RGVyaXZlZEZyb20g c3RSZWY6aW5zdGFuY2VJRD0idXVpZDplMmRkOWNmOS04OTdiLTQ2ZjItYThiNC01ZTA2M2QzMTE5 OWUiIHN0UmVmOmRvY3VtZW50SUQ9InV1aWQ6MmE0ZjA0MmMtMzNlNS00Yzc0LWIwODYtZjVjYmJi NmM0ZTRjIi8+IDxkYzpjcmVhdG9yPiA8cmRmOlNlcT4gPHJkZjpsaT5HZXJ0IFVpYm9hZWQ8L3Jk ZjpsaT4gPC9yZGY6U2VxPiA8L2RjOmNyZWF0b3I+IDwvcmRmOkRlc2NyaXB0aW9uPiA8L3JkZjpS REY+IDwveDp4bXBtZXRhPiA8P3hwYWNrZXQgZW5kPSJyIj8+wuxw2wAAAvRQTFRFAAAA/v7+Q0ND Z2dn8PDw/f39ExMT7+/vQkJC+vr6mJiY+/v7/Pz8fX19p6enJSUl+fn5+Pj48/Pz9PT03NzcoKCg SEhI9vb2Hh4eEBAQ5OTk2dnZ8vLy9fX1dnZ2HBwcLS0tISEh8fHx0NDQy8vLwMDAzs7OrKys4eHh k5OTioqKe3t7gYGBSUlJdHR0QEBARUVF9/f32NjYGhoa6urqFBQUycnJ4+PjxMTE6enp1dXVXV1d nZ2d29vbeXl5W1tbRkZG7u7uVlZWTU1NR0dH7e3ta2trMDAwNTU17OzsIyMj4uLiGRkZQUFB6Ojo yMjICAgIBQUF2tra39/f1tbWn5+foqKinp6eCgoKwsLCpaWlenp6xcXFsrKympqalpaW6+vrv7+/ qqqqvb29ampqcnJyj4+PERERXFxcYmJiTExMo6OjSkpKc3NztbW1Tk5OgoKCWVlZCwsLOzs7HR0d GBgYYWFhDQ0N3d3dAgICAwMDBAQEm5ub19fXr6+vOTk5Dg4O3t7elZWVZmZmY2NjMjIyUVFRaWlp PT09Pz8/kpKSCQkJGxsbJycnwcHBpKSkurq6PDw8EhIS5ubml5eXUFBQmZmZAQEBt7e3ZGRkWlpa V1dXi4uLMTExzc3NRERElJSUra2t0dHRkJCQNDQ0b29vxsbGFxcXUlJSS0tLKCgoU1NTKSkprq6u T09P4ODgMzMzubm5hISEs7Ozbm5unJyckZGROjo6tLS0KysrJiYm0tLSu7u7z8/PhoaGjIyMXl5e ODg409PTDAwMfn5+JCQkPj4+vr6+1NTUw8PDYGBgf39/eHh4oaGhjo6ODw8PgICA5eXlX19fqamp pqamfHx8ZWVl5+fniYmJiIiIVFRUbGxsBgYGLy8vFRUVLi4uvLy8uLi4Nzc3ysrKtra2NjY2BwcH dXV1h4eHHx8fjY2NWFhYLCwssbGxqKioKioqcXFxzMzMaGhod3d3g4ODhYWFcHBwsLCwICAgFhYW IiIi////LZeoBgAAB5tJREFUeNrsmmVcVEsUwGeRZdmSXnbpkH50S3cICCKIrQgqiIICIhiYWKCC 3d3d3d3d3fn0dZ0vb+7u3XXv7j5Sf/ruj/Nh7sydGZj/3DMnBhDQXFAzYDNgM2AzYDNgM+BXABwV 3YregFMRn96AunY96AtotNl+FIB7kK+xHj0Bb3hrcADaaJbk+9NURfd6MnDZ/3ISXc/gYksuAFur G22NzPq3bIBJ45i0BZwrMoEwYS/6uon+I63AbA2N/eDvQ02MhO2kLavNV+kGOBq555jJWu3GHaEb YL+yzBh1cS2VhYuXdwEYDDoBdn1g3o94Bl3r73oI1BN8tNXyomS9Bgu+LdPoGU0G7IkKxR8sfyWc 7gdni6DjFhtpn869o22/LeBBV4FuEwH3r3guft5d/Scue1veDPCS9R1Z980DVPazXIYiYANPkHR4 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(2) Vahesoojuskandjaga soojustagasti torustiku rõhulanguna võib kasutada hinnangulist rõhulangu väärtust 0,2 kPa/m. Soojustagasti vedelikosa rõhulangud on vahemikus 60 kPa (madal), 100 kPa (normaalne) ja 150 kPa (kõrge). Kolmeteeventiili (vahesoojuskandja reguleerventiili) rõhulanguna võib võtta 40% kogu süsteemi rõhulangust (kaasa arvatud ventiili rõhulang). Kui süsteemi reguleeritakse pumba pöörlemiskiirust muutes, siis on reguleerventiili rõhulang Δp p = 0 kPa.
(3) Pumba kasuteguri η p väärtuseks võib võtta 0,3.