Open cycle solar desiccant cooling system: a solar integrated concept for building air-conditioning
Gespeichert in:
| 1. Verfasser: | |
|---|---|
| Format: | Buch |
| Sprache: | English |
| Veröffentlicht: |
Düsseldorf
VDI-Verl.
1997
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| Ausgabe: | Als Ms. gedr. |
| Schriftenreihe: | Verein Deutscher Ingenieure: [Fortschritt-Berichte VDI / 6]
361 |
| Schlagworte: | |
| Online-Zugang: | Inhaltsverzeichnis |
| Beschreibung: | Zugl.: Freiburg, Univ., Diss., 1997 |
| Beschreibung: | XII, 146 S. graph. Darst. |
| ISBN: | 318336106X |
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Datensatz im Suchindex
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| adam_text | Titel: Open cycle solar desiccant cooling system
Autor: Kitoko, LeBeLá Mbonge te Nzapa
Jahr: 1997
FORTSCHRITTBERICHTE VM Dipl.-Phys. LeBeLä Mbonge te Nzapa Kitoko, Freiburg Open Cycle Solar Desiccant Cooling System - A Solar Integrated Concept for Building Air-Conditioning Reihe 6: Energietechnik Nr. 361
V Contents 1 Introduction I 1.1 Schema of Open cycle solid desiccant systems of interest ......... 1 1.2 Previous work and bibliography study.................... 7 1.3 Aims of tlie dissertation ........................... 8 2 The Sun 10 2.1 Astrophysical Explanation.......................... 10 2.2 Solar Radiant Flux.............................. 12 2.3 Solar Spectrum................................ 13 3 Solar Collector 18 3.1 Principles and Concepts of Solar Flat-Plate Collector........... 19 3.2 Dynamic behaviour of the solar collector.................. 20 3.2.1 Differential equation system of a 3-node-model........... 20 3.2.2 Reduction of the problem to a 1-node-model............ 22 3.3 Comparison of models and insolation set-function response........ 28 4 Properties of desiccant materials 35 4.1 Drying curve of hygroscopic materials.................... 30 4.2 Binding of humidity in an adsorbent .................... 38 4.2.1 Binding processes........................... 39 4.2.2 Adsorption .............................. 39 4.2.3 Chemical absorption......................... 40 4.2.4 Classification of adsorption isotherms................ 40 4.2.5 Capillary-porous hysteresis...................... 42 4.2.0 Bonding enthalpy........................... 45 4.2.7 Transfer coefficients.......................... 47 4.2.8 Moisture transfer coefficient..................... 50 5 The mathematics of diffusion in an adsorbent 52 5.1 Adsorption of Gas............................... 52 5.2 Non-isothermai Moisture Transport, in Silica Gel packed Beds ...... 53 5.2.1 Balance and transport relations................... 53 5.2.2 Mass balance............................. 55
VI CONTENTS 5.2.3 Energy balance............................ 58 5.3 Numerical Approach of the Mass Balance in Silica Gel Packed Beds ... GO 5.3.1 Numerical approach ......................... GO 6 Desiccant Cooling System Optimization 72 6.1 Desiccant Cooling System Set-Up...................... 73 6.2 Henning’s Model ............................... 75 6.3 Jurinak’s Model................................ 78 6.3.1 Combined potentials of heat and mass transfer of the regenerator matrix................................. 79 6.3.2 Howe’s TRNSYS Subroutine..................... 79 6.4 Kitoko’s Proposals .............................. 83 6.5 Description of TRNSYS Types........................ 86 6.6 Comparison of the Different Models..................... 89 6.7 Standard deviation.............................. 95 7 Desiccant Cooling System Experimental Set-Up 97 7.1 Human body comfort and air-conditioning................. 97 7.2 Environmental aspects of a desiccative and evaporative cooling system 99 7.3 Description of the complete solar integrated desiccant cooling system and its simulation with TRNSYS.........................101 7.3.1 Detailed flow chart of the Riesa’s solar integrated desiccant cooling system.................................101 7.3.2 General schema of the solar hybrid desiccant cooling system . . . 106 7.4 Experimental investigations.........................110 7.4.1 Speed of the Mass flow........................110 7.4.2 Temperature and relative humidity of the working medium .... 110 7.4.3 Data recorder.............................Ill 7.5 Comparison of experimental with predicted results, and discussions . . . Ill 7.5.1 System performance at the regeneration temperature of c. 80°C . 118 7.5.2 System performance at the regeneration temperature of c. 70°C . 120 7.5.3 System performance at the regeneration temperature of c. 55°C . 122 7.6 Energy consumption .............................124 7.7
Economical rentability............................129 8 Conclusions and Recommendations 131 A TRNSYS component configurations 133
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| author | Kitoko, LeBeLá Mbonge te Nzapa |
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| discipline | Energietechnik, Energiewirtschaft Architektur Maschinenbau |
| edition | Als Ms. gedr. |
| format | Book |
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| id | DE-604.BV011285413 |
| illustrated | Illustrated |
| indexdate | 2024-07-09T18:07:09Z |
| institution | BVB |
| isbn | 318336106X |
| language | English |
| oai_aleph_id | oai:aleph.bib-bvb.de:BVB01-007578915 |
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| physical | XII, 146 S. graph. Darst. |
| publishDate | 1997 |
| publishDateSearch | 1997 |
| publishDateSort | 1997 |
| publisher | VDI-Verl. |
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| series2 | Verein Deutscher Ingenieure: [Fortschritt-Berichte VDI / 6] |
| spelling | Kitoko, LeBeLá Mbonge te Nzapa Verfasser (DE-588)11530018X aut Open cycle solar desiccant cooling system a solar integrated concept for building air-conditioning LeBeLa Mbonge te Nzapa Kitoko Als Ms. gedr. Düsseldorf VDI-Verl. 1997 XII, 146 S. graph. Darst. txt rdacontent n rdamedia nc rdacarrier Verein Deutscher Ingenieure: [Fortschritt-Berichte VDI / 6] 361 Zugl.: Freiburg, Univ., Diss., 1997 Adsorbens (DE-588)4141454-8 gnd rswk-swf Klimaanlage (DE-588)4120572-8 gnd rswk-swf Entfeuchten (DE-588)4124839-9 gnd rswk-swf Kieselgele (DE-588)4163765-3 gnd rswk-swf Sonnenkollektor (DE-588)4058500-1 gnd rswk-swf (DE-588)4113937-9 Hochschulschrift gnd-content Klimaanlage (DE-588)4120572-8 s Sonnenkollektor (DE-588)4058500-1 s Entfeuchten (DE-588)4124839-9 s Kieselgele (DE-588)4163765-3 s Adsorbens (DE-588)4141454-8 s DE-604 6] Verein Deutscher Ingenieure: [Fortschritt-Berichte VDI 361 (DE-604)BV001897068 361 HBZ Datenaustausch application/pdf http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=007578915&sequence=000001&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA Inhaltsverzeichnis |
| spellingShingle | Kitoko, LeBeLá Mbonge te Nzapa Open cycle solar desiccant cooling system a solar integrated concept for building air-conditioning Adsorbens (DE-588)4141454-8 gnd Klimaanlage (DE-588)4120572-8 gnd Entfeuchten (DE-588)4124839-9 gnd Kieselgele (DE-588)4163765-3 gnd Sonnenkollektor (DE-588)4058500-1 gnd |
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| title | Open cycle solar desiccant cooling system a solar integrated concept for building air-conditioning |
| title_auth | Open cycle solar desiccant cooling system a solar integrated concept for building air-conditioning |
| title_exact_search | Open cycle solar desiccant cooling system a solar integrated concept for building air-conditioning |
| title_full | Open cycle solar desiccant cooling system a solar integrated concept for building air-conditioning LeBeLa Mbonge te Nzapa Kitoko |
| title_fullStr | Open cycle solar desiccant cooling system a solar integrated concept for building air-conditioning LeBeLa Mbonge te Nzapa Kitoko |
| title_full_unstemmed | Open cycle solar desiccant cooling system a solar integrated concept for building air-conditioning LeBeLa Mbonge te Nzapa Kitoko |
| title_short | Open cycle solar desiccant cooling system |
| title_sort | open cycle solar desiccant cooling system a solar integrated concept for building air conditioning |
| title_sub | a solar integrated concept for building air-conditioning |
| topic | Adsorbens (DE-588)4141454-8 gnd Klimaanlage (DE-588)4120572-8 gnd Entfeuchten (DE-588)4124839-9 gnd Kieselgele (DE-588)4163765-3 gnd Sonnenkollektor (DE-588)4058500-1 gnd |
| topic_facet | Adsorbens Klimaanlage Entfeuchten Kieselgele Sonnenkollektor Hochschulschrift |
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