Optimal Operation Conditions for a Methane Fuelled SOFC and Microturbine Hybrid System

<table class="table-group" id="tab4"><tr><td><table class="table"><tr><td class="thead-hr" colspan="4"><hr/></td></tr><tr class="thead"><td align="left">dfc <svg height="13.9117pt" id="M101" style="vertical-align:-2.1898pt" version="1.1" viewbox="-0.0498162 -11.7219 40.0428 13.9117" width="40.0428pt" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"><g transform="matrix(.013,0,0,-0.013,0,0)"><path d="M297 -163V-131C189 -122 187 -119 187 -41V582C187 660 190 663 297 672V704H122V-163H297Z" id="g50-92"></path><glyph.data ascent="3443" descent="-2856" horiz-adv-x="358" vert-adv-y="358"></glyph.data></g><g transform="matrix(.013,0,0,-0.013,4.654,0)"><path d="M682 0V33C615 38 603 49 571 134C507 305 441 494 378 665L343 655L136 136C101 48 86 41 22 33V0H246V33C170 41 161 50 183 112C196 152 209 192 224 232H441C461 176 478 126 493 87C504 49 499 41 433 33V0H682ZM425 279H242C273 363 303 448 335 533H337L425 279Z" id="g58-63"></path><glyph.data ascent="1007" descent="-369" 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439H184V473C183 558 195 604 207 623S234 653 261 653C293 653 322 635 341 616C350 607 360 606 370 614C381 622 386 631 389 638C394 652 393 664 384 675C366 696 339 708 303 710C263 705 225 686 190 655C137 608 121 561 114 538S103 487 103 456V439H56Z" id="g58-100"></path><glyph.data ascent="1007" descent="-369" horiz-adv-x="304" vert-adv-y="304"></glyph.data></g><g transform="matrix(.0091,0,0,-0.0091,10.768,3.001)"><path d="M396 114C349 71 317 59 274 59C216 59 123 104 123 241C123 342 180 400 246 400C283 400 317 386 348 359C355 352 361 348 366 348C378 348 401 371 402 394C402 405 398 413 385 424C369 437 337 451 294 451H293C254 451 193 434 141 394C73 342 39 277 39 198C39 90 114 -12 243 -12C303 -12 371 31 415 90L396 114Z" id="g58-97"></path><glyph.data ascent="1007" descent="-369" horiz-adv-x="432" vert-adv-y="432"></glyph.data></g><g transform="matrix(.013,0,0,-0.013,19.633,0)"><path d="M297 -163V-131C189 -122 187 -119 187 -41V582C187 660 190 663 297 672V704H122V-163H297Z" id="g50-92"></path><glyph.data ascent="3443" descent="-2856" horiz-adv-x="358" vert-adv-y="358"></glyph.data></g><g transform="matrix(.013,0,0,-0.013,24.287,0)"><path d="M676 0V33C628 38 606 47 555 101S396 279 321 373C388 440 457 509 495 545C556 601 582 609 660 617V650H412V617L436 615C479 608 479 601 452 566C405 510 345 447 289 394C258 366 239 353 216 348V518C216 605 226 612 305 617V650H40V617C123 612 130 605 130 518V131C130 46 121 38 44 33V0H310V33C226 38 216 46 216 131V318C235 322 249 319 274 290C367 181 444 84 520 0H676Z" id="g58-73"></path><glyph.data ascent="1007" descent="-369" horiz-adv-x="685" vert-adv-y="685"></glyph.data></g><g transform="matrix(.013,0,0,-0.013,33.192,0)"><path d="M237 -163V704H62V672C170 663 172 660 172 582V-40C172 -118 170 -122 62 -131V-163H237Z" id="g50-94"></path><glyph.data ascent="3443" descent="-2856" horiz-adv-x="358" vert-adv-y="358"></glyph.data></g></svg></span></td><td align="center">Fall of temperature [%]</td></tr><tr><td class="thead-hr" colspan="4"><hr/></td></tr><tr><td align="left">2500</td><td align="center">0.81</td><td align="center">945.5</td><td align="center"> </td></tr><tr><td align="left">2500</td><td align="center">0.82</td><td align="center">911.3</td><td align="center">3.66</td></tr><tr class="table-tr"><td colspan="4"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

Fall of temperature for increasing  <svg height="13.9952pt" id="M100" style="vertical-align:-5.39846pt" version="1.1" viewbox="-0.0498162 -8.59674 15.2489 13.9952" width="15.2489pt" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"><g transform="matrix(.013,0,0,-0.013,0,0)"><path d="M757 650H506L497 618C579 615 596 608 596 570S591 477 571 380L560 327C516 117 435 41 309 41C199 41 108 114 144 303L187 529C202 609 208 612 291 618L296 650H30L24 618C109 612 113 606 99 529L58 299C33 161 62 83 113 41C161 0 222 -17 283 -17C348 -17 417 3 470 48C546 111 584 203 603 311L615 380C631 474 647 531 658 567C667 599 672 616 750 618L757 650Z" id="g50-86"></path><glyph.data ascent="3443" descent="-2856" horiz-adv-x="769" vert-adv-y="769"></glyph.data></g><g transform="matrix(.0091,0,0,-0.0091,8.736,3.001)"><path d="M620 667C620 684 593 710 552 710C515 710 459 687 409 634C360 582 334 506 320 433H247L215 400L220 388H310L259 80C224 -129 199 -161 185 -174C175 -183 160 -192 141 -192C123 -192 90 -181 75 -165C69 -158 64 -156 54 -164C39 -178 24 -195 24 -208C24 -231 61 -257 94 -257C124 -257 162 -243 209 -194C267 -134 303 -66 343 107C369 220 378 279 393 385L503 397L523 433H404C432 619 464 660 500 660C522 660 542 646 566 621C573 614 583 615 593 621C603 628 620 648 620 667Z" id="g50-103"></path><glyph.data ascent="3443" descent="-2856" horiz-adv-x="644" vert-adv-y="644"></glyph.data></g></svg> for system with prereformer. 

Journal of Renewable Energy

tab4

Table 4

Table 4: Optimal Operation Conditions for a Methane Fuelled SOFC and Microturbine Hybrid System 