IEA Solar Heating and Cooling Programm - NachhaltigWirtschaften.at
IEA Solar Heating and Cooling Programm - NachhaltigWirtschaften.at IEA Solar Heating and Cooling Programm - NachhaltigWirtschaften.at
IEA SHC Task 38 Solar Air Conditioning and Refrigeration Subtask C2-A, November 9, 2009 page 22
IEA SHC Task 38 Solar Air Conditioning and Refrigeration Subtask C2-A, November 9, 2009 1. Modelling of the solar desiccant cooling installation A model implementation of a desiccant cooling installation powered by vacuum tube solar collectors in SPARK is described in this section. The Desiccant wheel, the sensible regenerator and the evaporative cooler are selected from bibliography. However a new developed model of the vacuum heat pipe solar collectors is presented. The aim of this implementation is to predict accurately the supply conditions of a desiccant air handling for different operating conditions and to predict the real potential of solar energy in this process. Nomenclature Symbols c pa heat capacity of air [J.kg -1 .K -1 ] c pv heat capacity of water vapor [J.kg -1 .K -1 ] c pm heat capacity of the regenerator matrix [J.kg -1 .K -1 ] C min min capacitance rate of the regenerator inlet fluids [J.s -1 .K -1 ] C r parameter used in the correlation of the regenerator [-] e thickness [m] F i potential characteristic [-] G solar global radiation [W. m -2 ] h heat transfer coefficient [W.K -1 m -2 ] h a enthalpy of moist air [J.Kg -1 ] h fg latent heat of vaporization [J.kg] H enthalpy of the sensible or desiccant regenerator matrix [J.Kg -1 ] J t lumped heat transfer coefficient [s -1 ] J m lumped mass transfer coefficient [s -1 ] K heat loss constant [W.K -1 m -2 ] L width of the desiccant wheel [m] L v latent heat of vaporization of the heat pipe fluid [J.kg -1 ] Le Lewis number [-] m a air mass flow rate [Kg.s -1 ] M mass [kg] M d M m mass of the desiccant matrix [Kg] mass of the aluminium matrix [Kg] N angular speed of the wheel [rd.s -1 ] Na number of nodes in the angular direction of the desiccant wheel [-] Np number of nodes in the width direction of the desiccant wheel [-] page 23
- Page 448 and 449: IEA SHC Task 38 Solar Air Condition
- Page 450 and 451: IEA SHC Task 38 Solar Air Condition
- Page 452 and 453: IEA SHC Task 38 Solar Air Condition
- Page 454 and 455: IEA SHC Task 38 Solar Air Condition
- Page 456 and 457: IEA SHC Task 38 Solar Air Condition
- Page 458 and 459: IEA SHC Task 38 Solar Air Condition
- Page 460 and 461: IEA SHC Task 38 Solar Air Condition
- Page 462 and 463: IEA SHC Task 38 Solar Air Condition
- Page 464 and 465: IEA SHC Task 38 Solar Air Condition
- Page 466 and 467: IEA SHC Task 38 Solar Air Condition
- Page 468 and 469: IEA SHC Task 38 Solar Air Condition
- Page 470 and 471: IEA SHC Task 38 Solar Air Condition
- Page 472 and 473: IEA SHC Task 38 Solar Air Condition
- Page 474 and 475: IEA SHC Task 38 Solar Air Condition
- Page 476 and 477: IEA SHC Task 38 Solar Air Condition
- Page 478 and 479: IEA SHC Task 38 Solar Air Condition
- Page 480 and 481: IEA SHC Task 38 Solar Air Condition
- Page 482 and 483: IEA SHC Task 38 Solar Air Condition
- Page 484 and 485: IEA SHC Task 38 Solar Air Condition
- Page 486 and 487: IEA SHC Task 38 Solar Air Condition
- Page 488 and 489: IEA SHC Task 38 Solar Air Condition
- Page 490 and 491: IEA SHC Task 38 Solar Air Condition
- Page 492 and 493: IEA SHC Task 38 Solar Air Condition
- Page 494 and 495: IEA SHC Task 38 Solar Air Condition
- Page 496 and 497: IEA SHC Task 38 Solar Air Condition
- Page 500 and 501: IEA SHC Task 38 Solar Air Condition
- Page 502 and 503: IEA SHC Task 38 Solar Air Condition
- Page 504 and 505: IEA SHC Task 38 Solar Air Condition
- Page 506 and 507: IEA SHC Task 38 Solar Air Condition
- Page 508 and 509: IEA SHC Task 38 Solar Air Condition
- Page 510 and 511: IEA SHC Task 38 Solar Air Condition
- Page 512 and 513: IEA SHC Task 38 Solar Air Condition
- Page 514 and 515: IEA SHC Task 38 Solar Air Condition
- Page 516 and 517: IEA SHC Task 38 Solar Air Condition
- Page 518 and 519: IEA SHC Task 38 Solar Air Condition
- Page 520 and 521: IEA SHC Task 38 Solar Air Condition
- Page 522 and 523: IEA SHC Task 38 Solar Air Condition
- Page 524 and 525: IEA SHC Task 38 Solar Air Condition
- Page 526 and 527: IEA SHC Task 38 Solar Air Condition
- Page 528 and 529: IEA SHC Task 38 Solar Air Condition
- Page 530 and 531: IEA SHC Task 38 Solar Air Condition
- Page 532 and 533: IEA SHC Task 38 Solar Air Condition
- Page 534 and 535: IEA SHC Task 38 Solar Air Condition
- Page 536 and 537: IEA SHC Task 38 Solar Air Condition
- Page 538 and 539: IEA SHC Task 38 Solar Air Condition
- Page 540 and 541: IEA SHC Task 38 Solar Air Condition
- Page 542 and 543: IEA SHC Task 38 Solar Air Condition
- Page 544 and 545: IEA SHC Task 38 Solar Air Condition
- Page 546 and 547: IEA SHC Task 38 Solar Air Condition
<strong>IEA</strong> SHC Task 38 <strong>Solar</strong> Air Conditioning <strong>and</strong> Refriger<strong>at</strong>ion Subtask C2-A, November 9, 2009<br />
page 22