Project: Underfloor and wall heating example

Transcription

1 General results heating No. of sources 1 Total number of terminal units 13 Total number of pipe-runs 12 Total number of manifolds 2 Total number of pumps 0 Spec. total rooms heat loss ΦH 7147 W Spec. total req. heat output of other TU's Spec. total rooms req. heat output Φreq 7147 W Calculation standards: Radiators sizing standard EN Floor heating standard EN ,2,3:1999, EN :2003 Wall and ceiling panels calculation standard EN Source: Other (hor.): 1, Application: Heating systems, Medium: Water Source elevation 0,0 m Supply and return temperature 41,5 / 3 C Total output Total output of convectors Φconv,H Total output of radiant heaters Φrh,H Total output of other heaters Heat gains from pipe-runs accounted for in balance Not utilized heat loss of pipe-runs Losses of radiant systems to outside of source feed area Losses of radiant systems within source feed area 8421 W 7324 W 46 W W Available pressure Pressure drop along critical route Pressure drop on critical terminal unit Press. drop on source 15,3 kpa 15,3 kpa 9,2 kpa 0,0 kpa Flow rate in source 678,4 kg/h Critical receptor: 003_2_1 Critical TU route length 24,0 m Capacity of system incl. terminal units 93,0 dm³ - 1 -

2 Radiant heating general results Source/Source: 1 Application: Heating systems Medium: Water Temperatures θs,h and θr,h [ C] 41,5 3 Temperature source for control circuits Source/1 Temperatures θs,h and θr,h [ C] 41,5 3 Required Φreq,H [W] 7147 Obtained ΦH [W] 7324 Heat capacity lost ΦOS,H [W] 1301 Mass flow rate m [kg/h] 678,4 Manifold symbol Storey symbol Number of heating/cooling circuits Obtained heat output of heat./cool. zone (heating mode) Output lost of heat./cool. zone (heating mode) Return temperature on manifold (heating mode) Temperature difference on manifold (heating mode) Mass flow rate Required min. pressure difference Resultant pressure difference Total pipe length in loop systems Manifold Stor. N ΦH ΦOS,H θr,h ΔθH m Δpmin Δp Ltot W W C K kg/h kpa kpa m ,8 11,6 369,5 11,5 11,5 462, ,1 308,9 5,2 5,4 323,9-2 -

3 Detailed radiant heating results Heating/cooling zone symbol Area Occupied / peripheral zone Surface temperature Thermal resistance of covering Required output of heating Output gained Output lost Unit power H/C Area A Type θfloor,h Rλ,B Φreq,H ΦH ΦOS,H qh VA ΔθH Afeed Φfeeds,H Lfeeds Ltot m v Δp Δpreg,s Pipe spacing Temp. diff. supplyreturn Area occupied by passing feeds Heating power from passing feeds Length of circuit feeds Overall circuit length (feeds + loop) Mass flow rate Flow velocity Pressure loss in circuit Pressure drop on regulating valves Δpreg,p Total pressure loss Δptot Valve setting n m² C (m² K)/W W W W W/m² mm K m² W m m kg/h m/s kpa kpa kpa Double apartment manifold: 0051; Storey: 0; Bld. unit: 01; θs,h: 41,5 C; Room: 001; θi,h: 20,0 C; Φreq,H: 768 W; Φ surplus: ; 001_1_1 14,0 OZ 25,2 0, , ,5 0,0 0 6,8 76,6 69,3 0,17 3,9 5,8 0,7 3,00 Room: 002; θi,h: 20,0 C; Φreq,H: 613 W; Φ surplus: ; 002_2_1 8,4 OZ 26,7 0, , ,7 0,0 0 11,3 53,3 72,3 0,18 2,9 6,3 1,1 3,00 Room: 003; θi,h: 20,0 C; Φreq,H: 1619 W; Φ surplus: 101 W; 003_1_1 11,6 OZ 25,9 0, , ,4 3, ,1 76,9 39,5 0,10 1,2 003_2_1 15,6 OZ 25,1 0, , ,0 0,0 0 18,0 143,8 79,1 0,19 9,2 8,6 0,5 0,7 8,00 2,2 cpz 26,1 65,1 75 Room: 004; θi,h: 20,0 C; Φreq,H: 197 W; Φ surplus: ; 004_1_1 3,6 OZ 25,2 0, , ,2 0,0 0 2,4 20,2 21,3 0,05 0,2 2,5 7,6 Room: 005; θi,h: 20,0 C; Φreq,H: 383 W; Φ surplus: 72 W; - 3 -

4 H/C Area A Type θfloor,h Rλ,B Φreq,H ΦH ΦOS,H qh VA ΔθH Afeed Φfeeds,H Lfeeds Ltot m v Δp Δpreg,s Δpreg,p Δptot n m² C (m² K)/W W W W W/m² mm K m² W m m kg/h m/s kpa kpa kpa 005_1_1 7,0 OZ 26,1 0, , ,2 0,1 7 0,8 44,2 35,0 0,09 0,6 6,7 3,0 Room: 006; θi,h: 24,0 C; Φreq,H: 267 W; Φ surplus: 41 W; 006_1_1 2,1 OZ 29,5 0, , ,0 10,6 21,1 28,2 0,10 006_3_1 3,2 OZ 30,7 0, , ,0 0,7 37 2,8 26,3 24,8 0,06 0,2 4,4 5,5 3,4 6,7 Double apartment manifold: 1031; Storey: 1; Bld. unit: 01; θs,h: 41,5 C; Room: 101; θi,h: 20,0 C; Φreq,H: 578 W; Φ surplus: ; 101_1_1 10,5 OZ 25,2 0, , ,1 0,0 0 17,8 7 69,9 0,17 3,6 0,6 7,00 Room: 102; θi,h: 20,0 C; Φreq,H: 578 W; Φ surplus: ; 102_1_1 10,5 OZ 25,2 0, , ,1 0,0 0 10,7 63,2 63,6 0,16 2,7 1,3 0,5 5,00 Room: 103; θi,h: 24,0 C; Φreq,H: 521 W; Φ surplus: -38 W; 103_2_1 6,2 OZ 31,4 0, , ,1 1,2 75 0,8 48,7 56,1 0,14 1,7 2,4 0,5 3,50 Room: 104; θi,h: 20,0 C; Φreq,H: 683 W; Φ surplus: ; 104_1_1 12,4 OZ 25,2 0, , ,3 0,0 0 8,9 71,1 59,3 0,15 2,7 1,4 4,50 Room: 105; θi,h: 20,0 C; Φreq,H: 94; Φ surplus: ; 105_1_1 17,1 OZ 25,3 0, , ,0 5, ,8 70,5 59,9 0,15 2,8 1,5 4,50 Zones heated by feed pipes or with no pipes; Storey: 0; Bld. unit: 01; θs,h: 41,5; - 4 -

5 H/C Area A Type θfloor,h Rλ,B Φreq,H ΦH ΦOS,H qh VA ΔθH Afeed Φfeeds,H Lfeeds Ltot m v Δp Δpreg,s m² C (m² K)/W W W W W/m² mm K m² W m m kg/h m/s kpa kpa kpa Δpreg,p Δptot n Room: 002; θi,h: 20,0 C; Φreq,H: 613 W; Φ surplus: ; 002_1_1 2,7 0, ,0 Room: 006; θi,h: 24,0 C; Φreq,H: 267 W; Φ surplus: 41 W; 006_2_1 1,3 0, ,0 Zones heated by feed pipes or with no pipes; Storey: 1; Bld. unit: 01; θs,h: 41,5; Room: 103; θi,h: 24,0 C; Φreq,H: 521 W; Φ surplus: -38 W; 103_1_1 2,4 0, ,0-5 -

6 List of rooms - heating Room Symbol Room surface area Thermal resistance of covering Design room temperature Heat loss in room Required output of heating Required specific Required radiant Required convection Obtained radiant Obtained convection Output recovered from pipe-runs Coverage of required heating output Room A Rλ,B θi,h Φstd,H Φreq,H qreq,h Φreq,rad,H Φreq,conv,H Φrh,H Φconv,H Φpipe,H %Φreq,H m² (m² K)/W C W W W/m² W W W W W % Storey: 0, Elevation 0 m Bld. unit: ,0 0,050 20, , , ,1 0,015 20, , , ,4 0,050 20, , , ,6 0,050 20, , , ,0 0,015 20, , , ,4 0,010 / 0,015 24, , , Storey: 1, Elevation 3 m Bld. unit: ,5 0,050 20, , , ,5 0,050 20, , , ,6 0,015 24, , , ,4 0,050 20, , , ,1 0,050 20, , ,