Direct Absorption Chiller — Rated Parameters

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Direct-fired Absorption Chiller (DFA) Rated Parameters

Fuel: natural gas, town gas, biogas, diesel or gas/oil dual fuel

Model	BZ	20	30	50	75	100	125	150	200	250	300	400	500	600	800	1000
Cooling capacity
	kW	233	349	582	872	1163	1454	1745	2326	2908	3489	4652	5815	6978	9304	11630
	10⁴kcal/h	20	30	50	75	100	125	150	200	250	300	400	500	600	800	1000
	RT	66	99	165	248	331	413	496	661	827	992	1323	1653	1984	2645	3307
Heating capacity
	kW	179	269	449	672	897	1121	1345	1793	2242	2690	3587	4483	5380	7173	8967
Hot water capacity
	kW	80	120	200	300	400	500	600	800	1000	1200	1600	/	/	/	/
Chilled water
Flow rate	m³/h	28.6	42.9	71.4	107	143	179	214	286	357	429	571	714	857	1143	1429
Pressure drop	kPa	30	30	30	30	30	40	40	40	50	50	60	60	60	60	60
Cooling water
Flow rate	m³/h	47.5	71.2	119	178	238	297	357	476	595	714	952	1190	1427	1903	2380
Pressure drop	kPa	50	50	50	50	50	50	50	50	80	80	80	90	90	90	90
Heating water
Flow rate	m³/h	15.3	23.1	38.5	57.9	77.1	96.4	116	153	193	231	308	385	463	617	771
Pressure drop	kPa	20	20	20	20	20	20	20	30	30	40	40	50	50	60	60
Hot water
Flow rate	m³/h	3.4	5.2	8.6	12.9	17.2	21.5	25.8	34.4	43	51.6	68.8	/	/	/	/
Pressure drop	kPa	20	20	20	20	20	20	20	30	30	40	40	/	/	/	/
NG consumption
Cooling	Nm³/h	16.2	24.3	40.7	61.1	81.4	102	122	163	204	244	326	407	489	652	815
Heating	Nm³/h	19	28.7	47.9	72	95.9	120	144	190	240	287	383	479	576	767	959
Hot water	Nm³/h	8.5	12.8	21.4	32	42.7	53.5	64	85	107	128	171	/	/	/	/
Power demand
	kW	2.3	3.8	3.9	5.1	6.8	8.8	9.9	16.3	16.6	22.4	26.6	29.3	39.3	49.7	53.3
Weight
Solution wt.	t	1	1.6	2.3	2.8	3.8	4.3	5.6	6.8	8.5	10.3	12.6	16	21	25	32
Unit ship wt.	t	5.1	7.7	9.2	12.1	15	16.9	20.1	26.3	31.5	/	/	/	/	/	/
Main shell ship. wt.	t	2.4	4	4.7	5.2	5.9	6.9	8.1	11.6	13.4	16.1	17.6	21.9	23.8	29.2	41.5
Operation wt.	t	5.7	8.3	10	13.7	17.3	19.5	23.4	30	34.9	42.6	51.1	61	74.8	91.1	110.2

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Packaged Direct-fired Absorption Chiller (P-DFA)

Rated chilled water 7°C/14°C, cooling water 37°C/30°C

Model	BZY	20	30	50	75	100	125	150	200	250	300	400	500	600	800	1000
Cooling capacity
	kW	233	349	582	872	1163	1454	1745	2326	2908	3489	4652	5815	6978	9304	11630
Pumpset
Chilled water pump
Pump head	mH₂O	22	22	22	24	24	27	27	27	28	28	28	32	32	32	32
Power demand	kW	4	7.5	7.5	15	15	22	30	37	44	60	60	110	110	150	180
Cooling water pump
Pump head	mH₂O	10	10	10	15	15	15	15	15	16	16	16	17	17	17	17
Power demand	kW	3	7.5	7.5	15	15	22	22	37	44	44	60	90	110	150	180
Hot water pump
Pump head	mH₂O	7	7	7	15	15	15	15	15	15	15	15	/	/	/	/
Power demand	kW	0.4	0.58	0.58	2.2	3	3	4.4	4.4	4.4	6	6	/	/	/	/
Total power demand kW	kW	7.4	15.6	15.6	32.2	33	47	56.4	78.4	92.4	110	126	200	220	300	360
Operation wt.	t	0.6	0.8	0.9	3.8	3.8	4.2	4.3	7.1	7.4	8.1	9.8	59/8.6	61/8.8	61/9.8	96/9.8
Cooling tower
Power demand	kW	5.5	11	11	/	/	/	/	/	/	/	/	/	/	/	/
Operation wt.	t	2.5	4.5	5.1	/	/	/	/	/	/	/	/	/	/	/	/
Electricity & water consumption
Total power demand kW	kW	15.2	30.7	30.8	36.3	38.3	54.3	64.8	93.2	107	130.4	150.6	227.3	256.3	346.7	410.3
Water demand for cooling	t/h	0.6	0.9	1.5	2	3	3.8	4.5	6	7.5	9	12	15	18	24	30

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HTG (high temp. generator) Enlarged Model Rated Parameters

Enlarged Models	Heating capacity kW	Gas Consumption m³/h
BZ 20
H1	215	23
H2	251	26.9
H3	287	30.7
H4	323	34.6
BZ 30
H1	323	34.6
H2	377	40.3
H3	430	46.1
H4	484	51.8
BZ 50
H1	538	57.7
H2	628	67.3
H3	717	77
H4	807	86
BZ 75
H1	807	86
H2	942	101
H3	1076	115
H4	1211	129
BZ 100
H1	1076	115
H2	1255	135
H3	1435	154
H4	1614	173
BZ 125
H1	1345	144
H2	1569	168
H3	1793	192
H4	2018	216
BZ 150
H1	1614	173
H2	1883	202
H3	2152	230
H4	2421	259
BZ 200
H1	2152	230
H2	2511	269
H3	2869	307
H4	3228	346
BZ 250
H1	2690	289
H2	3138	337
H3	3587	386
H4	4035	434
BZ 300
H1	3228	346
H2	3766	403
H3	4304	461
H4	4842	518
BZ 400
H1	4304	461
H2	5021	538
H3	5739	614
BZ 500
H1	5380	577
H2	6277	673

Heating capacity increases by 20% for each stage of HTG enlargement. No change with pumpset (excluding hot W. pump) and enclosure specs.

Special design is available if heating capacity is higher than above list.

General Conditions

1. Rated chilled W. outlet / inlet temp. 7°C/14°C (or 7°C/12°C).
2. Rated cooling W. outlet / inlet temp. 37°C/30°C (or 37.5°C/32°C).
3. Rated heating W. outlet / inlet temp. 65°C/55°C.
4. Rated hot W. outlet / inlet temp. 80°C/60°C.
5. Lowest permitted outlet temp. for chilled water: 5°C.
6. Highest permitted outlet temp. for heating / hot water: 95°C.
7. Lowest permitted inlet temp. for cooling water: 10°C.
8. Adjustable chilled water flowrate: 50%~120%, Adjustable heating / hot water flowrate: 65%~120%.
9. Pressure limit for chilled W., cooling W., heating W., hot W.: 0.8MPa (except special order).
10. Adjustable load: 5%~115%.
11. Fouling factor for cooling W. 0.044m²·K/kW, for chilled W. / heating W. / hot W. 0.018m²·K/kW.
12. Natural gas consumption is calculated: 10kWh/Nm³ (8600kcal/Nm³).
13. Standard natural gas dynamic pressure is 16~35kPa, static pressure is < 50kPa; lower or higher pressure can be accommodated to special orders.
14. LiBr solution concentration: 54%. Solution is included in unit shipment wt.
15. Rated exhaust temp. for cooling: 160°C, Rated exhaust temp. for heating: 145°C.
16. Machine room ambient temperature: 5~43°C, humidity ≤85%.
17. Standard climate conditions for cooling operation: temp. 36°C, relative humidity 50% (wet bulb 27°C).

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