ASHRAE-Standard-55 - Page 037

Extracted Content

var E_diff = 0.5 * feff * fsvv * tsol * Idiff;

var E_direct = fp * feff * fbes * tsol * Idir;

var E_refl = 0.5 * feff * fsvv * tsol * (Idir * Math.sin(alt *

DEG_TO_RAD) + Idiff) * 0.6;

var E_solar = E_diff + E_direct + E_refl;

var ERF = E_solar * (sw_abs / lw_abs);

var trsw = ERF / (hr * feff);

return {“ERF”: ERF, “trsw”: trsw};

}

C4. COMPUTER CODE VALIDATION TABLE

Table C4-1 Computer Code Validation Table

alt	sharp	posture	Idir	tsol	fsvv	fbes	asa	ERF	trsw
0	120	Seated	800	0.5	0.5	0.5	0.7	43.3	10.4
60	120	Seated	800	0.5	0.5	0.5	0.7	63.2	15.1
90	120	Seated	800	0.5	0.5	0.5	0.7	65.3	15.6
30	0	Seated	800	0.5	0.5	0.5	0.7	63.1	15.1
30	30	Seated	800	0.5	0.5	0.5	0.7	62.4	14.9
30	60	Seated	800	0.5	0.5	0.5	0.7	60.5	14.5
30	90	Seated	800	0.5	0.5	0.5	0.7	57.2	13.7
30	150	Seated	800	0.5	0.5	0.5	0.7	51.7	12.4
30	180	Seated	800	0.5	0.5	0.5	0.7	49.0	11.7
30	120	Standing	800	0.5	0.5	0.5	0.7	59.3	13.6
30	120	Seated	400	0.5	0.5	0.5	0.7	27.4	6.6
30	120	Seated	600	0.5	0.5	0.5	0.7	41.1	9.8
30	120	Seated	1000	0.5	0.5	0.5	0.7	68.5	16.4
30	120	Seated	800	0.1	0.5	0.5	0.7	11.0	2.6
30	120	Seated	800	0.3	0.5	0.5	0.7	32.9	7.9
30	120	Seated	800	0.7	0.5	0.5	0.7	76.7	18.4
30	120	Seated	800	0.5	0.1	0.5	0.7	29.3	7.0
30	120	Seated	800	0.5	0.3	0.5	0.7	42.1	10.1
30	120	Seated	800	0.5	0.7	0.5	0.7	67.5	16.2
30	120	Seated	800	0.5	0.5	0.1	0.7	36.4	8.7
30	120	Seated	800	0.5	0.5	0.3	0.7	45.6	10.9
30	120	Seated	800	0.5	0.5	0.7	0.7	64.0	15.3
30	120	Seated	800	0.5	0.5	0.5	0.3	23.5	5.6
30	120	Seated	800	0.5	0.5	0.5	0.5	39.1	9.4
30	120	Seated	800	0.5	0.5	0.5	0.9	70.4	16.9
30	120	Seated	800	0.5	0.5	0.5	0.7	54.8	13.1
45	0	Horizontal	700	0.8	0.2	0.5	0.7	60.9	14.0
45	45	Horizontal	700	0.8	0.2	0.5	0.7	65.8	15.1
45	45	Horizontal	800	0.5	0.5	0.5	0.7	70.9	16.3

ANSI/ASHRAE Standard 55-2023 35