Knowledge (XXG)

Hampson–Linde cycle

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The gas is compressed, which adds external energy into the gas, to give it what is needed for running through the cycle. Linde's US patent gives an example with the low side pressure of 25 standard atmospheres (370 psi; 25 bar) and high side pressure of 75 standard atmospheres
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In each cycle the net cooling is more than the heat added at the beginning of the cycle. As the gas passes more cycles and becomes cooler, reaching lower temperatures at the expansion valve becomes more difficult.
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The gas is sent back to the compressor, mixed with warm incoming makeup gas (to replace condensed product), and returned to the compressor to make another trip through the cycle (and become still colder).
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The high pressure gas is then cooled by immersing the gas in a cooler environment; the gas loses some of its energy (heat). Linde's patent example gives an example of brine at 10°C.
1843:, Linde, Carl, "Verfahren zur Verflüssigung atmosphärischer Luft oder anderer Gase (Method for the liquefaction of atmospheric air or other gases)", issued 1896-09-29 1862:, Linde, Carl, "Process of producing low temperatures, the liquefaction of gases, and the separation of the constituents of gaseous mixtures", issued 1903-05-12 1155: 1100: 1045: 852: 805: 720: 673: 585: 538: 1630: 756: 624: 990: 2023: 1331: 489: 1219: 828: 781: 696: 649: 561: 514: 453: 1309: 2185: 1342: 1724:
Hampson–Linde cycle; this diagram does not include the external cooler, highlight the countercurrent heat exchanger, or show significant holdup
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After leaving the countercurrent heat exchanger, the gas is warmer than it was at its coldest, but cooler than it started out at step 1.
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The gas is further cooled by passing the gas through a Joule–Thomson orifice (expansion valve); the gas is now at the lower pressure.
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J–T cooling for air) to go beyond a single stage of cooling and can reach the low temperatures required to liquefy "fixed" gases.
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The low pressure gas is directed back to the countercurrent heat exchanger to cool the warmer, incoming, high-pressure gas.
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independently filed for patents of the cycle in 1895: Hampson on 23 May 1895 and Linde on 5 June 1895.
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Hampson–Linde cycle sketch; this sketch does not show regeneration (gas fed back to compressor)
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Maytal, B. -Z. (2006). "Maximizing production rates of the Linde–Hampson machine".
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only in the expansion step. Whereas the Siemens cycle has the gas do external
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to reduce its temperature, the Hampson–Linde cycle relies solely on the
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The low pressure gas is now at its coolest in the current cycle.
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arrangement permits an absolute temperature difference (e.g.
1880:"Basics of Joule–Thomson Liquefaction and JT Cooling" 1752:
Some of the gas condenses and becomes output product.
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The 1631: 1617: 1180: 332: 151: 29: 18: 1906: 1782: 1780: 1692:The Hampson–Linde cycle differs from the 1112: 1057: 1002: 962: 836: 815: 789: 768: 740: 704: 683: 657: 636: 605: 569: 548: 522: 501: 473: 2186:Homogeneous charge compression ignition 1776: 1377: 1354: 1308: 1268: 1218: 1183: 376: 351: 280: 207: 154: 21: 7: 1677:The Hampson–Linde cycle introduced 1887:Journal of Low Temperature Physics 838: 791: 706: 659: 571: 524: 344:Intensive and extensive properties 14: 1995:10.1016/j.cryogenics.2005.11.004 1600: 1599: 919:Table of thermodynamic equations 1395:Maxwell's thermodynamic surface 1878:de Waele, A. T. A. M. (2017). 1733:(1,100 psi; 76 bar). 1129: 1117: 1074: 1062: 1019: 1007: 979: 967: 1: 1741:countercurrent heat exchanger 1296:Mechanical equivalent of heat 908:Onsager reciprocal relations 2091:Stirling (pseudo/adiabatic) 1950:History of industrial gases 1400:Entropy as energy dispersal 1211:"Perpetual motion" machines 1150:{\displaystyle G(T,p)=H-TS} 1095:{\displaystyle A(T,V)=U-TS} 1040:{\displaystyle H(S,p)=U+pV} 2362: 847:{\displaystyle \partial T} 800:{\displaystyle \partial V} 715:{\displaystyle \partial p} 668:{\displaystyle \partial V} 580:{\displaystyle \partial T} 533:{\displaystyle \partial S} 1908:10.1007/s10909-016-1733-3 1321:An Inquiry Concerning the 1334:Heterogeneous Substances 751:{\displaystyle \alpha =} 619:{\displaystyle \beta =-} 1946:Almqvist, Ebbe (2003). 1931:. Springer. p. 8. 1788:"Technical information" 1725: 1717: 1651: 1151: 1096: 1041: 986: 985:{\displaystyle U(S,V)} 848: 824: 801: 777: 752: 716: 692: 669: 645: 620: 581: 557: 534: 510: 485: 464:Specific heat capacity 68:Quantum thermodynamics 1723: 1715: 1660:liquefaction of gases 1658:is a process for the 1646: 1332:On the Equilibrium of 1152: 1097: 1050:Helmholtz free energy 1042: 987: 849: 825: 802: 778: 753: 717: 693: 670: 646: 621: 582: 558: 535: 511: 486: 2326:Thermodynamic cycles 2275:Regenerative cooling 2153:combustion / thermal 2052:Without phase change 2043:combustion / thermal 2033:Thermodynamic cycles 1702:Joule–Thomson effect 1679:regenerative cooling 1345:Motive Power of Fire 1111: 1056: 1001: 961: 913:Bridgman's equations 890:Fundamental relation 835: 814: 788: 767: 739: 703: 682: 656: 635: 604: 568: 547: 521: 500: 472: 1987:2006Cryo...46...49M 1899:2017JLTP..186..385D 1656:Hampson–Linde cycle 1323:Source ... Friction 1255:Loschmidt's paradox 447:Material properties 325:Conjugate variables 1802:on 14 October 2012 1726: 1718: 1652: 1587:Order and disorder 1343:Reflections on the 1250:Heat death paradox 1147: 1092: 1037: 982: 844: 820: 797: 773: 748: 712: 688: 665: 641: 616: 577: 553: 530: 506: 484:{\displaystyle c=} 481: 454:Property databases 430:Reduced properties 414:Chemical potential 378:Functions of state 301:Thermal efficiency 37:Carnot heat engine 2313: 2312: 2290:Vapor-compression 2216:Staged combustion 2145: 2144: 2110:With phase change 1965:978-0-306-47277-0 1938:978-0-387-46896-9 1662:, especially for 1641: 1640: 1582:Self-organization 1407: 1406: 1105:Gibbs free energy 903:Maxwell relations 861: 860: 857: 856: 823:{\displaystyle V} 776:{\displaystyle 1} 731:Thermal expansion 725: 724: 691:{\displaystyle V} 644:{\displaystyle 1} 590: 589: 556:{\displaystyle N} 509:{\displaystyle T} 437: 436: 353:Process functions 339:Property diagrams 318:System properties 308: 307: 273:Endoreversibility 165:Equation of state 2353: 2336:Industrial gases 2285:Vapor absorption 2048: 2026: 2019: 2012: 2003: 1998: 1969: 1953: 1942: 1913: 1912: 1910: 1893:(5–6): 385–403. 1884: 1875: 1869: 1868: 1867: 1863: 1856: 1850: 1849: 1848: 1844: 1837: 1831: 1830: 1829: 1825: 1818: 1812: 1811: 1809: 1807: 1798:. Archived from 1784: 1688: 1687:0.27 °C/atm 1633: 1626: 1619: 1603: 1602: 1310:Key publications 1291: 1290:("living force") 1240:Brownian ratchet 1235:Entropy and life 1230:Entropy and time 1181: 1156: 1154: 1153: 1148: 1101: 1099: 1098: 1093: 1046: 1044: 1043: 1038: 991: 989: 988: 983: 885:Clausius theorem 880:Carnot's theorem 853: 851: 850: 845: 829: 827: 826: 821: 806: 804: 803: 798: 782: 780: 779: 774: 761: 760: 757: 755: 754: 749: 721: 719: 718: 713: 697: 695: 694: 689: 674: 672: 671: 666: 650: 648: 647: 642: 629: 628: 625: 623: 622: 617: 586: 584: 583: 578: 562: 560: 559: 554: 539: 537: 536: 531: 515: 513: 512: 507: 494: 493: 490: 488: 487: 482: 460: 459: 333: 152: 33: 19: 2361: 2360: 2356: 2355: 2354: 2352: 2351: 2350: 2346:1895 in Germany 2341:1895 in science 2316: 2315: 2314: 2309: 2246: 2220: 2152: 2141: 2131:Organic Rankine 2105: 2059: 2056:hot air engines 2053: 2042: 2035: 2030: 1972: 1966: 1945: 1939: 1924: 1921: 1919:Further reading 1916: 1882: 1877: 1876: 1872: 1865: 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1385: 1382: 1378: 1375: 1374: 1372: 1371: 1366: 1364:Thermodynamics 1360: 1357: 1356: 1352: 1351: 1350: 1349: 1340: 1338: 1329: 1327: 1318: 1313: 1312: 1306: 1305: 1304: 1303: 1298: 1293: 1281: 1280: 1278:Caloric theory 1274: 1271: 1270: 1266: 1265: 1263: 1262: 1257: 1252: 1247: 1242: 1237: 1232: 1226: 1223: 1222: 1216: 1215: 1214: 1213: 1206: 1205: 1200: 1195: 1189: 1186: 1185: 1179: 1176: 1175: 1172: 1168: 1167: 1166: 1163: 1162: 1158: 1157: 1146: 1143: 1140: 1137: 1134: 1131: 1128: 1125: 1122: 1119: 1116: 1102: 1091: 1088: 1085: 1082: 1079: 1076: 1073: 1070: 1067: 1064: 1061: 1047: 1036: 1033: 1030: 1027: 1024: 1021: 1018: 1015: 1012: 1009: 1006: 992: 981: 978: 975: 972: 969: 966: 951: 949: 948: 943: 937: 936: 931: 930: 927: 926: 923: 922: 915: 910: 905: 898: 897: 892: 887: 882: 876: 875: 870: 869: 866: 865: 859: 858: 855: 854: 843: 840: 830: 819: 808: 807: 796: 793: 783: 772: 758: 747: 744: 734: 727: 726: 723: 722: 711: 708: 698: 687: 676: 675: 664: 661: 651: 640: 626: 615: 612: 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2253: 2252:Refrigeration 2249: 2243: 2240: 2238: 2235: 2233: 2230: 2229: 2227: 2223: 2217: 2214: 2212: 2209: 2207: 2204: 2202: 2199: 2197: 2194: 2192: 2189: 2187: 2184: 2182: 2181:Gas-generator 2179: 2177: 2174: 2172: 2169: 2167: 2166:Brayton/Joule 2164: 2162: 2159: 2158: 2156: 2154: 2148: 2138: 2135: 2132: 2128: 2125: 2123: 2120: 2118: 2115: 2114: 2112: 2108: 2102: 2099: 2097: 2094: 2092: 2089: 2087: 2084: 2082: 2079: 2077: 2074: 2072: 2071:Brayton/Joule 2069: 2067: 2064: 2063: 2061: 2057: 2049: 2046: 2044: 2038: 2034: 2027: 2022: 2020: 2015: 2013: 2008: 2007: 2004: 1996: 1992: 1988: 1984: 1980: 1976: 1971: 1967: 1961: 1957: 1952: 1951: 1944: 1940: 1934: 1930: 1929: 1923: 1922: 1918: 1909: 1904: 1900: 1896: 1892: 1888: 1881: 1874: 1871: 1861: 1855: 1852: 1842: 1836: 1833: 1823: 1817: 1814: 1801: 1797: 1793: 1789: 1783: 1781: 1777: 1771: 1769: 1762: 1759: 1756: 1751: 1748: 1747: 1745: 1742: 1738: 1735: 1731: 1730: 1729: 1722: 1714: 1707: 1705: 1703: 1699: 1695: 1694:Siemens cycle 1690: 1684: 1680: 1675: 1673: 1669: 1665: 1661: 1657: 1649: 1645: 1634: 1629: 1627: 1622: 1620: 1615: 1614: 1612: 1611: 1606: 1598: 1597: 1596: 1595: 1588: 1585: 1583: 1580: 1578: 1577:Self-assembly 1575: 1573: 1570: 1569: 1563: 1562: 1554: 1551: 1549: 1548:van der Waals 1546: 1544: 1541: 1539: 1536: 1534: 1531: 1529: 1526: 1524: 1521: 1519: 1516: 1514: 1511: 1509: 1506: 1504: 1501: 1499: 1496: 1494: 1491: 1489: 1486: 1484: 1481: 1479: 1476: 1474: 1473:von Helmholtz 1471: 1469: 1466: 1464: 1461: 1459: 1456: 1454: 1451: 1449: 1446: 1444: 1441: 1439: 1436: 1434: 1431: 1429: 1426: 1424: 1421: 1420: 1413: 1412: 1401: 1398: 1396: 1393: 1392: 1391: 1390: 1383: 1380: 1379: 1376: 1370: 1367: 1365: 1362: 1361: 1359: 1358: 1353: 1347: 1346: 1339: 1336: 1335: 1328: 1325: 1324: 1317: 1316: 1315: 1314: 1311: 1307: 1302: 1299: 1297: 1294: 1292: 1288: 1284: 1283: 1279: 1276: 1275: 1273: 1272: 1267: 1261: 1258: 1256: 1253: 1251: 1248: 1246: 1243: 1241: 1238: 1236: 1233: 1231: 1228: 1227: 1225: 1224: 1221: 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335: 334: 330: 326: 319: 314: 313: 302: 299: 297: 294: 292: 289: 288: 287: 286: 283: 279: 274: 271: 269: 266: 264: 263:Reversibility 261: 259: 256: 254: 251: 249: 246: 244: 241: 239: 236: 234: 231: 229: 226: 224: 221: 219: 216: 215: 214: 213: 210: 206: 201: 198: 196: 193: 191: 188: 186: 183: 181: 178: 176: 173: 171: 168: 166: 163: 162: 161: 160: 157: 153: 148: 145: 143: 140: 138: 137:Closed system 135: 134: 131: 126: 125: 117: 114: 112: 109: 107: 104: 102: 99: 98: 94: 89: 88: 81: 77: 74: 73: 69: 66: 64: 61: 59: 56: 54: 51: 50: 43: 42: 38: 32: 28: 27: 24: 20: 2259: 2137:Regenerative 2066:Bell Coleman 1981:(1): 49–85. 1978: 1974: 1949: 1927: 1890: 1886: 1873: 1854: 1835: 1822:GB 189510165 1816: 1804:. Retrieved 1800:the original 1791: 1766: 1727: 1691: 1676: 1655: 1653: 1438:Carathéodory 1369:Heat engines 1341: 1330: 1319: 1301:Motive power 1286: 946:Free entropy 917: 417: 416: / 406: 405: / 397:introduction 390: 389: / 328: 291:Heat engines 78: / 2305:Ionocaloric 2300:Vuilleumier 2122:Hygroscopic 1260:Synergetics 941:Free energy 387:Temperature 248:Quasistatic 243:Isenthalpic 200:Instruments 190:Equilibrium 142:Open system 76:Equilibrium 58:Statistical 2331:Cryogenics 2320:Categories 2270:Pulse tube 2242:Mixed/dual 1975:Cryogenics 1806:26 January 1772:References 1572:Nucleation 1416:Scientists 1220:Philosophy 933:Potentials 296:Heat pumps 253:Polytropic 238:Isentropic 228:Isothermal 2265:Kleemenko 2151:Internal 1860:US 727650 1708:The cycle 1553:Waterston 1503:von Mayer 1458:de Donder 1448:Clapeyron 1428:Boltzmann 1423:Bernoulli 1384:Education 1355:Timelines 1139:− 1084:− 872:Equations 839:∂ 792:∂ 743:α 707:∂ 660:∂ 614:− 608:β 572:∂ 525:∂ 233:Adiabatic 223:Isochoric 209:Processes 170:Ideal gas 53:Classical 2232:Combined 2191:Humphrey 2176:Expander 2161:Atkinson 2096:Stoddard 2086:Stirling 2081:Ericsson 2041:External 1841:DE 88824 1605:Category 1543:Thompson 1453:Clausius 1433:Bridgman 1287:Vis viva 1269:Theories 1203:Gas laws 995:Enthalpy 403:Pressure 218:Isobaric 175:Real gas 63:Chemical 46:Branches 2295:Siemens 2211:Scuderi 2127:Rankine 1983:Bibcode 1895:Bibcode 1792:Kryolab 1528:Smeaton 1523:Rankine 1513:Onsager 1498:Maxwell 1493:Massieu 1198:Entropy 1193:General 1184:History 1174:Culture 1171:History 395: ( 392:Entropy 329:italics 130:Systems 2201:Miller 2196:Lenoir 2171:Diesel 2117:Kalina 2101:Manson 2076:Carnot 1962:  1935:  1866:  1847:  1828:  1518:Planck 1508:Nernst 1483:Kelvin 1443:Carnot 733:  598:  466:  408:Volume 323:Note: 282:Cycles 111:Second 101:Zeroth 2225:Mixed 1883:(PDF) 1648:Linde 1566:Other 1533:Stahl 1488:Lewis 1478:Joule 1468:Gibbs 1463:Duhem 156:State 116:Third 106:First 2237:HEHC 2206:Otto 1960:ISBN 1933:ISBN 1808:2013 1698:work 1670:and 1654:The 1538:Tait 368:Heat 363:Work 93:Laws 1991:doi 1956:160 1903:doi 1891:186 1381:Art 327:in 2322:: 1989:. 1979:46 1977:. 1958:. 1901:. 1889:. 1885:. 1794:. 1790:. 1779:^ 1666:. 2133:) 2129:( 2058:) 2054:( 2025:e 2018:t 2011:v 1997:. 1993:: 1985:: 1968:. 1941:. 1911:. 1905:: 1897:: 1810:. 1632:e 1625:t 1618:v 1145:S 1142:T 1136:H 1133:= 1130:) 1127:p 1124:, 1121:T 1118:( 1115:G 1090:S 1087:T 1081:U 1078:= 1075:) 1072:V 1069:, 1066:T 1063:( 1060:A 1035:V 1032:p 1029:+ 1026:U 1023:= 1020:) 1017:p 1014:, 1011:S 1008:( 1005:H 980:) 977:V 974:, 971:S 968:( 965:U 842:T 818:V 795:V 771:1 746:= 710:p 686:V 663:V 639:1 611:= 575:T 551:N 528:S 504:T 479:= 476:c 399:)

Index

Thermodynamics

Carnot heat engine
Classical
Statistical
Chemical
Quantum thermodynamics
Equilibrium
Non-equilibrium
Laws
Zeroth
First
Second
Third
Systems
Closed system
Open system
Isolated system
State
Equation of state
Ideal gas
Real gas
State of matter
Phase (matter)
Equilibrium
Control volume
Instruments
Processes
Isobaric
Isochoric

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