The heat loss of the house - thermos, the dome house and the hut

For correct comparison we take all three types of houses with the same effective area — 80m.kV... Under the effective area understand the floor space where the full length can be a person with the increase in 1m, 60cm, and minus the area under the intermediate floor staircase. Typical (common) variants of the same temperature within +20oC.With.; outside -20gr.. and with the same glazing area — 16m.kV.

HOUSE THERMOS

with the second attic floor on screw piles. Wall 150mm effective insulation (0,05), floors and ceilings 200mm the same effective insulation. According to the Foundation 7 by 7 meters — less inefficient space just get 80m.kV. Ceiling height — 3M (on the loft at the top)





So consider the heat loss.

Wall. The area of the walls with Gables — 94,5 sq. m. R=3 (0,15/0,05), TVN-between the points of max=40

Heat loss (Q)= 40/3*94,5 = 1260Вт

Gender: S=49; R=0,2/0,05=4; Q=40/4*49=490Вт

the ceiling (also the roof): S=70; R=0,2/0,05=4; Q=40/4*70=700w

Windows (triple glazing): S=16; R=0,62; Q=40/0,62*16=1032Вт

ventilation: Can be counted on the ventilation rate, but nevertheless correct "on-chelovecheski" — 30m.cub/HR per person. Let's say for a family of 4 persons

30 cubic meters/person*4 people = 120m.cube. you have to heat up to 40gr. Q=1773 W/h

(single air exchange would be much more — 3634Вт/h)

(Heat loss through doors, etc. down because they will be conditionally the same. Other — not significant)

house thermos total: 1260+490+700+1032+1773= 5255Вт

(check immediately, then not much to be surprised:))

DOM-DOME

The thickness of insulation is 150mm, floor — 200. the Foundation on screw piles. Diameter... in order to obtain an effective area of about 80 sq. m. the dome shall be not less than 10 m in diameter, and the ceiling will still be less than 2.5 m.





The walls (and roof and ceiling): S=152 sq. m.; R=0,15/0,05=3; Q=40/3*152=2026Вт

gender: S=76; R=0,2/0,05=4; Q=40/4*76=760Вт

Windows (the same): S=16; R=0,62; Q=40/0,62*16=1032Вт

ventilation (same): 30 cubic meters/person*4 people = 120m.KUB.; Q=1773 W/h

house dome total: 2026+760+1032+1773= 5591Вт.

HUT

Let's just decide that it is not an old cottage of the last century, and the new (modern)good hut, let chopped (бревно35-40cm), with the stove, and with all the traditional attributes: basement, cold attic, senki it, the shutters, the bench...





Size 10m*8m, ceilings — 3M.

wall S=108: North wall 30m.kV, the other — 78 — 16m.kV.(Ocon) = 62 sqm

R=0.3/0,14=2,14

heat loss through the South, East and West walls: — Q=40/2,14*(78-16)=1159Вт

heat losses through the North facing wall in senki it, for which indoor yard:

Qсев.St.=40/2,14*(30-2)*40%=210Вт

(if it is not clear why 40% — see method of calculation or description of the album at the link above)

ceiling: the thickness of the insulation will take the same (although no one and nothing prevents and thicker insulation to fill).

S=80m.kV; R= 0,2/0,05=4; Q=40/4*80 /2 = 400W

(heat vestibule on attic ceilings are insulated and even snow — so divide by 2 to calculate by the method — the essence will not change)

Paul. In General-and Paul, no one bothers to insulate as much as karkasnogo. And the temperature difference here will not be 40 degrees, and only about 10, because the temperature in basements and CSC. floors (unheated) is kept at the level of 10-15 grams.

S=80; R=0,2/0,05=4; Q= 10/4*80=200W.

Window. For Windows with shutters — R take of 0.76 (the same as triple glazing plus shutters)

S=16; R=0,76; Q=40/0,76*16=842Вт

Ventilation. ...? No equipment or special vent.channels never did, and often even the window — a rarity. Yes, a natural "breathing" materials (not only walls, but first and foremost the ceiling) contributed to the ideal microclimate and the furnace each time the furnace runs through dozens of cubic meters of air. There is the infiltration? Of course there is. There is a loss on heating of this air? Of course there is. But the heat losses are already accounted for in the efficiency of the furnace. They should not be considered second time.

Hut total: 1159+210+400+200+842 = 2811Вт.

So:

House thermos: heat — 5255 watts.

House dome: heat — 5591 watts.

Russkaya Izba: heat — 2811 watts.

Conclusions this begs a lot, but make them yourself. published

 

Source: ecology.md/page/teplopoteri-home-termosa-home-kupola-i-izby