The “pound per hour” (lb/h) is a unit of flow rate often used in engineering and manufacturing to describe the mass of a substance, such as steam or fuel, moving through a system over time. While commonly associated with industrial processes, this unit plays a crucial role in everyday appliances, like HVAC systems, to ensure optimal performance and energy efficiency by precisely managing the flow of refrigerant or air.
Historically, the pound per hour measurement gained prominence during the Industrial Revolution when steam engines were vital for transportation and industry. By calculating steam flow in pounds per hour, engineers of the time could effectively control machinery, optimize fuel use, and enhance productivity—a legacy that continues to influence modern engineering practices.
Kilogram per minute (kg/min) is a fascinating unit often used to measure flow rate in industrial processes, especially in sectors such as manufacturing, chemical processing, and food production. It quantifies how much mass, measured in kilograms, is transferred or produced every minute. This unit can be vital for ensuring efficiency and consistency in production lines, where controlling the flow of materials can directly influence product quality and operational costs.
Interestingly, the concept of flow rates dates back to ancient civilizations, where early forms of water clocks relied on consistent flow to measure time, showcasing humanity’s longstanding interest in the movement and measurement of materials. In modern applications, understanding and optimizing flow rates like kilograms per minute can lead to innovations in material handling and resource management, potentially impacting sustainable practices and minimizing waste.
Pounds per hour | Kilograms per minute |
---|---|
0
lb/h
|
0
kg/min
|
100
lb/h
|
0.755987
kg/min
|
200
lb/h
|
1.51197
kg/min
|
300
lb/h
|
2.26796
kg/min
|
400
lb/h
|
3.02395
kg/min
|
500
lb/h
|
3.77993
kg/min
|
600
lb/h
|
4.53592
kg/min
|
700
lb/h
|
5.29191
kg/min
|
800
lb/h
|
6.04789
kg/min
|
900
lb/h
|
6.80388
kg/min
|
1000
lb/h
|
7.55987
kg/min
|
1100
lb/h
|
8.31585
kg/min
|
1200
lb/h
|
9.07184
kg/min
|
1300
lb/h
|
9.82783
kg/min
|
1400
lb/h
|
10.58381
kg/min
|
1500
lb/h
|
11.3398
kg/min
|
1600
lb/h
|
12.09579
kg/min
|
1700
lb/h
|
12.85177
kg/min
|
1800
lb/h
|
13.60776
kg/min
|
1900
lb/h
|
14.36375
kg/min
|
2000
lb/h
|
15.11973
kg/min
|
2100
lb/h
|
15.87572
kg/min
|
2200
lb/h
|
16.63171
kg/min
|
2300
lb/h
|
17.38769
kg/min
|
2400
lb/h
|
18.14368
kg/min
|
2500
lb/h
|
18.89967
kg/min
|
2600
lb/h
|
19.65565
kg/min
|
2700
lb/h
|
20.41164
kg/min
|
2800
lb/h
|
21.16763
kg/min
|
2900
lb/h
|
21.92361
kg/min
|
3000
lb/h
|
22.6796
kg/min
|
3100
lb/h
|
23.43559
kg/min
|
3200
lb/h
|
24.19157
kg/min
|
3300
lb/h
|
24.94756
kg/min
|
3400
lb/h
|
25.70355
kg/min
|
3500
lb/h
|
26.45953
kg/min
|
3600
lb/h
|
27.21552
kg/min
|
3700
lb/h
|
27.97151
kg/min
|
3800
lb/h
|
28.72749
kg/min
|
3900
lb/h
|
29.48348
kg/min
|
4000
lb/h
|
30.23947
kg/min
|
4100
lb/h
|
30.99545
kg/min
|
4200
lb/h
|
31.75144
kg/min
|
4300
lb/h
|
32.50743
kg/min
|
4400
lb/h
|
33.26341
kg/min
|
4500
lb/h
|
34.0194
kg/min
|
4600
lb/h
|
34.77539
kg/min
|
4700
lb/h
|
35.53137
kg/min
|
4800
lb/h
|
36.28736
kg/min
|
4900
lb/h
|
37.04335
kg/min
|
5000
lb/h
|
37.79933
kg/min
|
5100
lb/h
|
38.55532
kg/min
|
5200
lb/h
|
39.31131
kg/min
|
5300
lb/h
|
40.06729
kg/min
|
5400
lb/h
|
40.82328
kg/min
|
5500
lb/h
|
41.57927
kg/min
|
5600
lb/h
|
42.33525
kg/min
|
5700
lb/h
|
43.09124
kg/min
|
5800
lb/h
|
43.84723
kg/min
|
5900
lb/h
|
44.60321
kg/min
|
6000
lb/h
|
45.3592
kg/min
|
6100
lb/h
|
46.11519
kg/min
|
6200
lb/h
|
46.87117
kg/min
|
6300
lb/h
|
47.62716
kg/min
|
6400
lb/h
|
48.38315
kg/min
|
6500
lb/h
|
49.13913
kg/min
|
6600
lb/h
|
49.89512
kg/min
|
6700
lb/h
|
50.65111
kg/min
|
6800
lb/h
|
51.40709
kg/min
|
6900
lb/h
|
52.16308
kg/min
|
7000
lb/h
|
52.91907
kg/min
|
7100
lb/h
|
53.67505
kg/min
|
7200
lb/h
|
54.43104
kg/min
|
7300
lb/h
|
55.18703
kg/min
|
7400
lb/h
|
55.94301
kg/min
|
7500
lb/h
|
56.699
kg/min
|
7600
lb/h
|
57.45499
kg/min
|
7700
lb/h
|
58.21097
kg/min
|
7800
lb/h
|
58.96696
kg/min
|
7900
lb/h
|
59.72295
kg/min
|
8000
lb/h
|
60.47893
kg/min
|
8100
lb/h
|
61.23492
kg/min
|
8200
lb/h
|
61.99091
kg/min
|
8300
lb/h
|
62.74689
kg/min
|
8400
lb/h
|
63.50288
kg/min
|
8500
lb/h
|
64.25887
kg/min
|
8600
lb/h
|
65.01485
kg/min
|
8700
lb/h
|
65.77084
kg/min
|
8800
lb/h
|
66.52683
kg/min
|
8900
lb/h
|
67.28281
kg/min
|
9000
lb/h
|
68.0388
kg/min
|
9100
lb/h
|
68.79479
kg/min
|
9200
lb/h
|
69.55077
kg/min
|
9300
lb/h
|
70.30676
kg/min
|
9400
lb/h
|
71.06275
kg/min
|
9500
lb/h
|
71.81873
kg/min
|
9600
lb/h
|
72.57472
kg/min
|
9700
lb/h
|
73.33071
kg/min
|
9800
lb/h
|
74.08669
kg/min
|
9900
lb/h
|
74.84268
kg/min
|
10000
lb/h
|
75.59867
kg/min
|
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