petawatt | 1 PW | 2 PW | 3 PW | 4 PW | 5 PW | 6 PW | 7 PW | 8 PW | 9 PW | 10 PW | 11 PW | 12 PW | 13 PW | 14 PW | 15 PW | 16 PW | 17 PW | 18 PW | 19 PW | 20 PW | 21 PW | 22 PW | 23 PW | 24 PW | 25 PW | 26 PW | 27 PW | 28 PW | 29 PW | 30 PW | 31 PW | 32 PW | 33 PW | 34 PW | 35 PW | 36 PW | 37 PW | 38 PW | 39 PW | 40 PW | 41 PW | 42 PW | 43 PW | 44 PW | 45 PW | 46 PW | 47 PW | 48 PW | 49 PW | 50 PW | 51 PW | 52 PW | 53 PW | 54 PW | 55 PW | 56 PW | 57 PW | 58 PW | 59 PW | 60 PW | 61 PW | 62 PW | 63 PW | 64 PW | 65 PW | 66 PW | 67 PW | 68 PW | 69 PW | 70 PW | 71 PW | 72 PW | 73 PW | 74 PW | 75 PW | 76 PW | 77 PW | 78 PW | 79 PW | 80 PW | 81 PW | 82 PW | 83 PW | 84 PW | 85 PW | 86 PW | 87 PW | 88 PW | 89 PW | 90 PW | 91 PW | 92 PW | 93 PW | 94 PW | 95 PW | 96 PW | 97 PW | 98 PW | 99 PW | 100 PW |
ton of refrigeration (IT) | 284,345,123,324.75 TR | 568,690,246,649.49 TR | 853,035,369,974.24 TR | 1 137 380 493 299 TR | 1,421,725,616,623.7 TR | 1,706,070,739,948.5 TR | 1,990,415,863,273.2 TR | 2 274 760 986 598 TR | 2,559,106,109,922.7 TR | 2,843,451,233,247.5 TR | 3,127,796,356,572.2 TR | 3,412,141,479,896.9 TR | 3,696,486,603,221.7 TR | 3,980,831,726,546.4 TR | 4,265,176,849,871.2 TR | 4,549,521,973,195.9 TR | 4,833,867,096,520.7 TR | 5,118,212,219,845.4 TR | 5,402,557,343,170.2 TR | 5,686,902,466,494.9 TR | 5,971,247,589,819.6 TR | 6,255,592,713,144.4 TR | 6,539,937,836,469.1 TR | 6,824,282,959,793.9 TR | 7,108,628,083,118.6 TR | 7,392,973,206,443.4 TR | 7,677,318,329,768.1 TR | 7,961,663,453,092.9 TR | 8,246,008,576,417.6 TR | 8,530,353,699,742.4 TR | 8,814,698,823,067.1 TR | 9,099,043,946,391.8 TR | 9,383,389,069,716.6 TR | 9,667,734,193,041.3 TR | 9,952,079,316,366.1 TR | 10 236 424 439 691 TR | 10 520 769 563 016 TR | 10 805 114 686 340 TR | 11 089 459 809 665 TR | 11 373 804 932 990 TR | 11 658 150 056 315 TR | 11 942 495 179 639 TR | 12 226 840 302 964 TR | 12 511 185 426 289 TR | 12 795 530 549 614 TR | 13 079 875 672 938 TR | 13 364 220 796 263 TR | 13 648 565 919 588 TR | 13 932 911 042 913 TR | 14 217 256 166 237 TR | 14 501 601 289 562 TR | 14 785 946 412 887 TR | 15 070 291 536 211 TR | 15 354 636 659 536 TR | 15 638 981 782 861 TR | 15 923 326 906 186 TR | 16 207 672 029 510 TR | 16 492 017 152 835 TR | 16 776 362 276 160 TR | 17 060 707 399 485 TR | 17 345 052 522 809 TR | 17 629 397 646 134 TR | 17 913 742 769 459 TR | 18 198 087 892 784 TR | 18 482 433 016 108 TR | 18 766 778 139 433 TR | 19 051 123 262 758 TR | 19 335 468 386 083 TR | 19 619 813 509 407 TR | 19 904 158 632 732 TR | 20 188 503 756 057 TR | 20 472 848 879 382 TR | 20 757 194 002 706 TR | 21 041 539 126 031 TR | 21 325 884 249 356 TR | 21 610 229 372 681 TR | 21 894 574 496 005 TR | 22 178 919 619 330 TR | 22 463 264 742 655 TR | 22 747 609 865 980 TR | 23 031 954 989 304 TR | 23 316 300 112 629 TR | 23 600 645 235 954 TR | 23 884 990 359 279 TR | 24 169 335 482 603 TR | 24 453 680 605 928 TR | 24 738 025 729 253 TR | 25 022 370 852 578 TR | 25 306 715 975 902 TR | 25 591 061 099 227 TR | 25 875 406 222 552 TR | 26 159 751 345 877 TR | 26 444 096 469 201 TR | 26 728 441 592 526 TR | 27 012 786 715 851 TR | 27 297 131 839 176 TR | 27 581 476 962 500 TR | 27 865 822 085 825 TR | 28 150 167 209 150 TR | 28 434 512 332 475 TR |
The petawatt (PW) is equal to one quadrillion (1015) watts and can be produced by the current generation of lasers for time-scales on the order of picoseconds (10−12 s). One such laser is the Lawrence Livermore's Nova laser, which achieved a power output of 1.25 PW (1.25×1015 W) by a process called chirped pulse amplification. The duration of the pulse was roughly 0.5 ps (5×10−13 s), giving a total energy of 600 J.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
petawatt | PW | = 1015 W | = 1015 W | Metric system SI |
petawatts | tons of refrigeration (IT) | petawatts | tons of refrigeration (IT) |
---|---|---|---|
1 | ≈ 284345123324.75 | 6 | ≈ 1706070739948.5 |
2 | ≈ 568690246649.49 | 7 | ≈ 1990415863273.2 |
3 | ≈ 853035369974.24 | 8 | ≈ 2274760986598 |
4 | ≈ 1137380493299 | 9 | ≈ 2559106109922.7 |
5 | ≈ 1421725616623.7 | 10 | ≈ 2843451233247.5 |
A ton of refrigeration (TR), also called a refrigeration ton (RT), is a unit of power used in some countries (especially in North America) to describe the heat-extraction capacity of refrigeration and air conditioning equipment.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
ton of refrigeration (IT) | TR | ≡ 2000 lb × iceIT / 24 h: iceIT = 144 °F × 2326 J/kg·°F | ≈ 3.516853×103 W | Imperial/US |
tons of refrigeration (IT) | petawatts | tons of refrigeration (IT) | petawatts |
---|---|---|---|
1 | ≈ 3.516853E-12 | 6 | ≈ 2.1101118E-11 |
2 | ≈ 7.033706E-12 | 7 | ≈ 2.4617971E-11 |
3 | ≈ 1.0550559E-11 | 8 | ≈ 2.8134824E-11 |
4 | ≈ 1.4067412E-11 | 9 | ≈ 3.1651677E-11 |
5 | ≈ 1.7584265E-11 | 10 | ≈ 3.516853E-11 |
petawatts | tons of refrigeration (IT) |
---|---|
1 | ≈ 284,345,123,324.75 |
3.516853 × 10-12 | ≈ 1 |
Symbol | Definition |
---|---|
≡ | exactly equal |
≈ | approximately equal to |
= | equal to |
digits | indicates that digits repeat infinitely (e.g. 8.294 369 corresponds to 8.294 369 369 369 369 …) |