10 CFR 434.512 - Internal loads.

Regulations last checked for updates: Nov 24, 2024

Title 10 - Energy last revised: Nov 19, 2024

View all text of Subpart E [§ 434.501 - § 434.521]

§ 434.512 - Internal loads.

512.1 The systems and types of energy specified in this section are provided only for purposes of calculating the Energy Cost Budget. They are not requirements for either systems or the type of energy to be used in the Proposed Design or for calculation of Design Energy Cost.

512.2 Internal loads for multi-family high-rise residential buildings are prescribed in Tables 512.2.a and b, Multi-Family High Rise Residential Building Schedules. Internal loads for other building types shall be modeled as noted in this subsection.

Table 512.2. a—Multi-Family High Rise Residential Buildings Schedules—One-Zone Dwelling Unit

[Internal loads per dwelling unit Btu/h]

Hour	Occupants		Lights	Equipment
Hour	Sensible	Latent	Sensible	Sensible	Latent
1	300	260	0	750	110
2	300	260	0	750	110
3	300	260	0	750	110
4	300	260	0	750	110
5	300	260	0	750	110
6	300	260	0	750	110
7	300	260	0	750	110
8	210	260	980	1250	190
9	100	80	840	2600	420
10	100	80	0	1170	180
11	100	80	0	1270	190
12	100	80	0	2210	330
13	100	80	0	2210	330
14	100	80	0	1270	190
15	100	80	0	1270	190
16	100	80	0	1270	190
17	100	80	0	1270	190
18	300	260	0	3040	450
19	300	260	0	3360	500
20	300	260	960	1490	220
21	300	260	960	1490	220
22	300	260	960	1490	220
23	300	260	960	1060	160
24	300	260	960	1060	160

Table 512.2. b—Multi-Family High Rise Residential Building Schedules-Two-Zone Dwelling Unit

[Internal loads per dwelling unit Btu/h]

Hour	Bedrooms & bathrooms					Other rooms
	Occupants		Lights	Equipment		Occupants		Lights	Equipment
	Sensible	Latent	Sensible	Sensible	Latent	Sensible	Latent	Sensible	Sensible	Latent
1	300	260	0	750	110
2	300	260	0	750	110
3	300	260	0	750	110
4	300	260	0	750	110
5	300	260	0	750	110
6	300	260	0	750	110
7	300	260	0	750	110
8	210	260	980	1250	190
9	100	80	840	2600	420
10	100	80	0	1170	180
11	100	80	0	1270	190
12	100	80	0	2210	330
13	100	80	0	2210	330
14	100	80	0	1270	190
15	100	80	0	1270	190
16	100	80	0	1270	190
17	100	80	0	1270	190
18	300	260	0	3040	450
19	300	260	0	3360	500
20	300	260	960	1490	220
21	300	260	960	1490	220
22	300	260	960	1490	220
23	300	260	960	1060	160
24	300	260	960	1060	160

Table 512.2. b—Multi-Family High Rise Residential Building Schedules-Two-Zone Dwelling Unit

[Internal loads per dwelling unit Btu/h]

Hour	Bedrooms & bathrooms					Other rooms
	Occupants		Lights	Equipment		Occupants		Lights	Equipment
	Sensible	Latent	Sensible	Sensible	Latent	Sensible	Latent	Sensible	Sensible	Latent
1	300	260	0	100	20	0	0	0	650	90
2	300	260	0	100	20	0	0	0	650	90
3	300	260	0	100	20	0	0	0	650	90
4	300	260	0	100	20	0	0	0	650	90
5	300	260	0	100	20	0	0	0	650	90
6	300	260	0	100	20	0	0	0	650	90
7	200	180	680	200	40	100	80	300	1050	150
8	110	120	240	200	40	100	80	600	2400	380
9	0	0	0	100	20	100	80	0	1070	160
0	0	0	0	100	20	100	80	0	1170	170
0	0	0	0	100	20	100	80	0	1170	170
0	0	0	0	100	20	100	80	0	2110	310
0	0	0	0	100	20	100	80	0	2110	310
14	0	0	0	100	20	100	80	0	1170	170
15	0	0	0	100	20	100	80	0	1170	170
16	0	0	0	100	20	100	80	0	1170	170
17	0	0	0	100	20	100	80	0	1170	170
18	0	0	0	100	20	300	260	0	2940	430
19	0	0	0	100	20	300	260	0	3260	480
20	100	80	320	300	60	200	180	640	1190	160
21	100	80	320	300	60	200	180	640	1190	160
22	150	130	480	700	90	150	130	480	790	130
23	300	260	640	410	70	0	0	320	650	90
24	300	260	640	410	70	0	0	320	650	90

authority: 42 U.S.C. 6831-6832,6834; 42 U.S.C. 8253-54; 42 U.S.C. 7101,

source: 65 FR 60012, Oct. 6, 2000, unless otherwise noted.

cite as: 10 CFR 434.512