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VADEMECUM
 
Unidades y Tablas de conversión y equivalencia 9

 

Tablas de equivalencia (continuación)


 

Equivalencia métrica del sistema inglés en tamaños de tuberías
Pulgadas Milímetros estimados Pulgadas Milímetros estimados
1/4 8 16 400
3/8 10 18 450
1/2 15 20 500
3/4 20 24 600
1 25 28 700
1-1/4 32 30 750
1-1/2 40 32 800
2 50 36 900
2-1/2 65 40 1000
3 80 42 1050
3-1/2 90 48 1200
4 100 54 1400
6 150 60 1500
8 200 64 1600
10 250 72 1800
12 300 78 1950
14 350 84 2100
Equivalentes métricos y decimales de las fracciones
Pulgadas Décimas de pulgada Milímetros Pulgadas Décimas de pulgada Milímetros
1/64 0.015625 0.396875 7/16 0.4375 11.112500
1/32 0.03125 0.793750 29/64 0.453125 11.509375
3/64 0.046875 1.190625 15/32 0.46875 11.906250
1/20 0.05 1.270003 31/64 0.484375 12.303125
1/16 0.0625 1.597500 1/2 0.5 12.700000
1/13 0.0769 1.953850 33/64 0.515625 13.096875
5/64 0.078125 1.984375 17/32 0.53125 13.493750
1/12 0.0833 2.116671 35/64 0.546875 13.890625
1/11 0.0909 2.309095 9/16 0.5625 14.287500
3/32 0.09375 2.381250 37/64 0.578125 14.684375
1/10 0.10 2.540005 19/32 0.59375 15.081250
7/64 0.109375 2.778125 39/64 0.609375 15.478125
1/9 0.111 2.822228 5/8 0.625 15.875000
1/8 0.125 3.175000 41/64 0.640625 16.271875
9/64 0.140625 3.571875 21/32 0.65625 16.668750
1/7 0.1429 3.628579 43/64 0.671875 17.065625
5/32 0.15625 3.968750 11/16 0.6875 17.462500
1/6 0.1667 4.233342 45/64 .703125 17.859375
11/64 0.171875 4.365625 23/32 0.71875 18.256250
3/16 0.1875 4.762500 47/64 0.734375 18.653125
1/5 0.2 5.080000 3/4 0.75 19.050000
13/64 0.203125 5.159375 49/64 0.765625 19.446875
7/32 0.21875 5.556250 25/32 0.78125 19.843750
15/64 0.234375 5.953125 51/64 0.796875 20.240625
1/4 0.25 6.350000 13/16 0.8125 20.637500
17/64 0.265625 6.746875 53/64 0.828125 21.034375
9/32 0.28125 7.143750 27/32 0.84375 21.431250
19/64 0.296875 7.540625 55/64 0.859375 21.828125
5/16 0.3125 7.937500 7/8 0.875 22.335000
21/64 0.328125 8.334375 57/64 0.890625 22.621875
1/3 0.333 8.466683 29/32 0.90625 23.018750
11/32 0.34375 8.731250 59/64 0.921875 23.415625
23/64 0.359375 9.128125 15/16 0.9375 23.812500
3/8 0.375 9.525000 61/64 0.953125 24.209375
25/64 0.390625 9.921875 31/32 0.96875 24.606350
13/32 0.40625 10.318750 63/64 0.984375 25.003125
27/64 0.421875 10.715625 1 1 25.400050
Equivalencias entre unidades de trabajo o energía en sus formas eléctrica, mecánica y térmica
  Ergio (Erg) Julio (J) Kilovatio-hora (kWh) Kilocaloría (hcal) Caballo de Vapor-hora
(CV-h)
British thermal unit (Btu) Quad
Ergio 1 10-7 2.778 10-14 2.389 10-11 0.377 10-13 9.480 10-11 9.480 10-26
Julio 107 1 2.778 10-7 2.389 10-4 0.377 10-6 9.480 10-4 9.480 10-19
kWh 3.600 1013 3.600 106 1 860 1.359 3.413 3.413 10-12
kcal 4.186 1010 4.186 103 1.163 10-3 1 1.581 10-3 3.969 3.969 10-15
CV-h 2.650 1013 2.650 106 0.736 6.326 102 1 2.510 2.510 10-12
Btu 1.055 1010 1.055 103 2.930 10-4 0.252 0.398 10-3 1 10-15
Quad 1.055 1025 1.055 1018 2.930 1011 2.520 1014 0.398 1012 1015 1

Macrounidades energéticas

  tec tep Tcal Th Btu 103 Barril de petróleo 103 m3 de GN 1 T de GLP
Tm
equivalente de carbón
(tec)
1 0.700 0.007 7 103 2.777 107 5.300 10-3 0.778 0.569
Tm
equivalente de carbón
(tep)
1.428 1 0.010 104 3.968 107 0.758 10-2 1.111 0.813
Teracalorías
(Tcal)
1.428 102 100 1 106 3.968 109 0.758 1.111 102 0.813 102
Termias(Th) 1.428 10-4 10-4 10-6 1 3.968 103 0.758 10-6 1.111 10-4 0.813 10-4
British
thermal unit
(Btu)
0.360 10-7 0.252 10-7 0.252 10-9 0.252 10-3 1 0.191 10-9 0.277 10-7 0.019 10-6
103 Barriles
de petróleo *
1.884 102 1.319 102 1.319 1.319 106 5.240 109 1 0.146 103 0.115
103 m3
de GN **
1.285 0.900 0.009 0.900 104 36 10-3 6.810 10-3 1 0.0.724 10-3
1T de GLP 1.757 1.230 1.230 10-2 1.230 10-4 8.68 8.68 1.38 103 1

* 1 barril de petróleo equivale a 42 galones USA (158.9 litros).
1 barril/día equivalente a 48.2 Tm/año.
** Se considera 0.09 tep por Gcl de poder calorífico superior.