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484 CHAPTER 26 1965 Guide And Data Boole Table 8 .... Heat toss Calculation Sheet for Uninsulated Residence (Rg. 1) A tooto or Spoe* s fort of Sbwhn or Inffitratkm Air C Hot Area or Acr Yolotno 0. . . Cwfthd Closet Bedroom B Closet Bedroom C Closet Bedroom D ;. Closet. Bathroom 1 Bathroom 2 Living Room Dining Boom and and and Glass Ceiling Infiltration 0f) Walls Glass Ceiling . Infiltration 04)* Walls Glass Ceiling Infiltration 04)* - Walla Glass Ceiling Floor over garage Infiltration (34)* 1 238 sq ft 40 sq ft 252 sq ft 1510 ah* 0.29 0.45 . 0.74. 0.018*' 156 sq ft 40 sq ft. 170 sq ft 1020 eflt* ` 0.29 . 0.45 0:74 0.028* ; 114 aq ft 27 sq ft .. 129 sq ft' 874 era* 0.29 0.45 0.74 0.018* 118 sq ft ' 20 sq ft 110 sq ft 110 sq ft . 660 cfh* . . 0:29 - 0.45 0.74 = 0:28 0.018* ' Walls Glass . ' Ceiling Infiltration (!) 30 sq ft 0.29 14 sq ft- 0.45 , 55 sq ft 440 cfhk 0.74 0.018* Walls Glass Ceiling Floor over garage Infiltration (1)* 79 sq ft 9 sq ft- 35 sq ft 35 sq ft.. 280 cinb 0.28 0.45 0.74, 0.26. 0.018* " Walls ` -- - Walls (adjoining garage) Glass Floor - " 1 Infiltration (lK)h 267 sq ft 94 sq ft 50 sq ft ' 294 sq ft 3745 cfhk . 0.290.39f 0.45 .. . , ...0.018* , .Walla '* Glass (doors) Glass (windows) Floor Infiltration (1#).< ., 166 sq ft 35 sq ft 20sq ft 168 sq ft 2140 eft* ` " 0.29 ' 0.85 - : - 0.45 . ' o.oi8*f Ritchen and En trance to Garage Walls' Walls (adjoining garage) Glass . Door' Floor ' Infiltration (1%)J Lavette and Vesti bule Walls Walls (adjoining garage) Glass Door Floor .. Infiltration (lH)k Entrance Hall . Walls Door Ceiling* .Infiltration (2)' - Garage/ Walla i Glass Doors ^Infiltration (l>f)" "Floor Gain adjoining rooms 96 sq ft' * 0.29 51 sq ft. 0.39* , 18 sq ft 0.45 . I7.sq ft -125gq ft 0.51 1595 cfhk 0.018* 82 sq ft 85 aq ft 9 sq ft 19 eq ft ' 30 aq ft *383 cfhk 0.29 0.39*: ' 0.45 0.51 ; 0.018* 39 aq ft 21 sq-ft 87, sq ft 1110 efhk_ 0.29 0.38 0.74 . 0.018* _j 167 sq ft 53 sq ft : 44 eq ft 2360 cfhk 29 ft* '0.29 ' 1.13 .0.51 0.018* 0.81 Recreation Room* ---------------------- " Walls Glass Floor Infiltration (1)B \ 220 sq ft 8 sq ft 287 sq ft 2010 efhk . 0.10 1.13 0.10 . 0.018* e Temp. 0i5S 85 85. 44.8* 85 ' 85 . ' 85, - - 44.8* 85 85 85 44.8* - 85 85 85' ' f ^ 44.8* " 40*.., . 85: 85 85 '. 44.8* 85. 85' 85 . 44.8* 40* 85 t 85 - .... . 40* 85.. - F ' Hoot tan (6Jv per,hour) 5870 1530 8350 2310 . -3840 1530 5630 1560 ' 2810 1 1030 4280 1340 2910 ' 770 3640 1140* 1010 740 - 540 " 1820 670 1750 340' 1190 360 430 6580 1470 1910 .c Tottdt 13,060 9,460 9,470 . 3,770 4,070 . 85 . ' ' 85 85 85 . 5730 .r 4090 2530 : : " 770 ;; 15,690 85 85 40* , . 85 40 3270 ` 2370 800* 690 " ' 350"" 10,660 85 2440 6,650 85 2020 40* 1330* 85 340 85 820 85 85 85 44.8* 85 ' 590 960 680 2990 1700 5,100 6,330 SO* 2420 50 3000". 50 , 1120 50 2120 SO 1180 -5100* " .4,740 43 950 85 770 25 720 85 3080 ",:"5,520 TOTAL 112,080 Heatingitfxid' :- 485 Notes for Table 6 .... Heat Loss' Calculation for Uninsulated Residence IRg: -1} * * Tbe indoor-outdoor temperature difference is 75 -- (-- 10) or 80 F except where otherwise noted. k Volume of infiltration, cfh -- (no. air changes) X (Hoot or ceiling area) X (ceiling height). From Equation 5a." The ceiling beat losses are calculated by estimating the attic temperature and then calculating the loss through the ceiling using the proper temperature .difference. This unheated attic is not ventilated during winter months. The attic temperature ia estimated from Equation 1 to be 30.2 F when the outdoor temperature is -- 10.F and room temperature is 70 F. The temperature difference is then 75 -- 80.2 or 44.8 deg. For the insulated residence, attic temperature becomes 4.6 F and temperature difference 75 -- 4.6 " 70.4 deg. Temperature in garage assumed to be 35 F. i Coefficient for wall adjoining garage calculated on basis of metal lath and plaster on both sides of studs (U =* 0.39). t One-half of value.from Table 2, Chapter 25, for storm windows or weatherstripping, a Exposed on two sides, weatherstripped windows offset by fireplace. Use 1J. ... Window on one side weatherstripped but double-doors are hard to close tightly. Hence, conservative'value of 1|. j AMiming kitchen .vent, door to vestibule usually open, allow full table value of 1J. `.One-half value in Table 2, Chapter 25, increased to lj.by oearby outside door in vestibule. i Full value in Table 2, Chapter 25, to allow for frequent opening of outside door. ., Two sides exposed, large doors but large volume. Use value li as given in Table 2, Chapter 25. Two unweatherstripped windows in protected location, but fireplace, indicate 1 , Heat losses from these rooms into garage are heat gains for garage. v Neglect heat loss to basement, as losses from boiler, piping, ete., will probably keep basement near, if not above, 75 F. Upstairs hall ceiling figures with downstairs. Heat should be provided downstairs for both. linear feet of exposed edgel .... a^Hitinnid heat must be supplied depends upon the heat ca pacity of the structure and its material contents, and upon the rimp in which these are to be heated.*1 , . This additional heat may be computed and allowed for as conditions require, but inasmuch as the heating system pro portioned for taking care of the heat losses will usually have a capacity, about 100 percent greater than that required for average winter weather, and inasmuch as most buildings may either be continuously heated or have more time ailowed for heating, up during' the few minimum temperature days, no allowance usually is made, except in the size of boilers or fur naces. For churches, auditoriums, and other intermittently heated buildings, additional capacity should be provided. RESIDENCE HEAT LOSS PROBLEMS \ The following Examplea 6 and 7 will illustrate the proce? dure for calculating the heat loss of a residence, uninsulated and insulated, in accordance with the recommendations given in this chapter. Example 6: Calculate the heat loss of the residence shown in Kg. 1 located in the vicinity of Syracuse, N. Y. From Table 1, Column 6, design outdoor conditions are -- 10 F and 11 mph wind speed. Indoor temperature from Table 2 is assumed to he 75 F. The attic is unheated. Assume ground temperature to be 50 F under basement and garage doors and 32 F adjoining base ment walls. Estimateinfiltration by the air change method. No. wall, ceding, or roof insulation is to be considered in this problem, but all first and second-floor windows, except in the garage, are .to have storm sash. The building is constructed as follows (heat transmission coefficients U are in parentheses): . Wailt: Brick veneer, building paper, wood sheathing, stud ding, metal lath, and plaster (0.29). Wails of dormer over garage re the same, except wood siding is used in place of brick veneer (0.26). Attic Walla: Brick veneer, building paper, wood sheathing on studding (0.42). Basement Walls: 10 in. concrete (0.10). Boot: Asphalt riling)en on wood sheathing on rafters (0.44). (Second Floor): Metal lath and plaster (0.74). Wmdouts: Double-hung wood windows averaging 70 percent p&ss (0.45; from Chapter 24, Table 18, Section D, the U value Jor wood windows with storm sash is 0.53 X application factor; by interpolation this factor is 0.85). Steel casement in ga- rage ana basement (1.13; from Chapter 24, Table 18, U is 1.13 for all glass and the application factor is 1.00). French doors in dining room are 50 percent no storm doors (0.85; from Chapter 24, Table 18 V is 1.13 for all glass; by interpolation the application factor is 0.75). Floor (Bedroom D): Maple finish flooring on yellow pine sub flooring; metal lath and plaster ceiling below (0.26). Floor (Basement and Garage): 4 in. stone concrete on 3 in. cinder concrete (0.10). Solution: The calculations for this problem are given in Table 8, and a' summary of the results is Table 9.. The values in col umn F of Table 8 were obtained by multiplying together, the figures in columns C, D, and E. The heat loses are calculated to the nearest 10 Btu. See reference notes for Table 8 for further explanation of data. ' ' . Attention is calledto'the summary'of heat losses (Table 9) for the uninsulated residence. As storm windows are used in'this fable 9Summary , of , Heat Losses of Uninsulated Residence (fifu Per Hour) baa or Spec* WeOr CoBing . and toot 'Floor - GJou - and Door ' laffl- Toltdr Bedroom A Bedroom B Bedroom C Bedroom D "5870' 3840 2810 2910 8350 * 5630 v4280r 3640 . 1140 1530 1530 1030 770 2310 1560 1340 1010 18,000 12,560 9,460 9,470 Bathroom I' 740:* Bathroom 2 1750 Living' Room' ''8050* Dining Room 4090.. 1820 1190 KttrHrin 3170^ .- Lavette 3350 Entrance Hall 960 2990 Garage Recreation -1180* -lfiOO* 950 .540 360. 340 1910 3300 .. -i 1180 720 1160 680 4120 770 .;,670 !' 3,770 -.430. ;.4,070 5730. 15,:690 ;3270 -.10,660 ;2440" '. ,6;'650 590 5,100 1700 6,330 2120 4,740 3080 5,520 Design Totals 37,310 . 26,400 Operating Totals* 37,310 26,400 Percentages* 37.7 26.7 3,400 18,720 26,250 112,080 3,400 18,720 13,130 98,960 3.4 18.9 13.3 100.0 * Wp hart ka oi *420 Etch rawsa woQ hart hub* at 1470. 800. and 1XK> Btch. * Hast rtb* <4 1140 and 380 Btah. *BMod Co H compoWd iagatmion. * Baced a cpwMing totob.