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Temperature Influence and Heat Management Requirements of Microalgae Cultivation in Photobioreactors - Mehlitz, Thomas H.
Vergriffenes Buch, derzeit bei uns nicht verfügbar.
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Mehlitz, Thomas H.:

Temperature Influence and Heat Management Requirements of Microalgae Cultivation in Photobioreactors - Taschenbuch

2009, ISBN: 9783640382255

[ED: Softcover], [PU: Grin Verlag], Master's Thesis from the year 2009 in the subject Agrarian Studies, grade: 1, California Polytechnic State University, language: English, abstract: Microalgae are considered one of the most promising feedstocks for biofuel production for the future. The most efficient way to produce vast amounts of algal biomass is the use of closed tubular photobioreactors (PBR). The heat requirement for a given system is a major concern since the best algae growth rates are obtained between 25-30 C, depending on the specific strain. A procedure to determine temperature influence on algal growth rates was developed for a lab-scale PBR system using the species Chlorella. A maximum growth rate of 1.44 doublings per day at 29 C (optimal temperature) was determined. In addition, a dynamic mathematical model was developed to simulate heating and cooling energy requirements of tubular PBRs for any desired location. Operating the model with hourly weather data as input, heating and cooling loads can be calculated early in the planning stage of a project. Furthermore, the model makes it possible to compare the operation inside a greenhouse to the outdoor operations, and consequently provides fundamental information for an economic feasibility study. The best configuration for a specific location can be evaluated easily. The model was exemplary tested for a hypothetical 100,000 l photobioreactor located in San Luis Obispo, California, U.S.A. Average algae productivity rates of 23% and 67% for outdoor and indoor PBR operations, respectively, were obtained. Actual energy loads (heating and cooling) needed to maintain the PBR at optimal temperature were determined and compared. Sensitivity analyses had been performed for abrupt temperature and solar radiation steps, PBR row distances, ground reflectivities, and ventilation rates of the greenhouse. An optimal row distance of 0.75 m was determined for the specific PBR. The least amount of energy was needed for a ground reflectivity of 20%. The ventilation rate had no major influence on the productivity rate of the system. Results demonstrated the importance of a simulation model as well as the economic impact of a sophisticated heat management system. Energy savings due to an optimized heat management system will eventually increase proficiency of the systems, which will support a new sustainable industry and future developmental potential.Keywords: Microalgae, photobioreactor, temperature influence, heat management, biodiesel, ethanol, biofuel, algal biomass2009. 148 S. 5 Farbabb. 210 mmVersandfertig in 3-5 Tagen, [SC: 0.00], Neuware, gewerbliches Angebot

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Temperature Influence and Heat Management Requirements of Microalgae Cultivation in Photobioreactors - Thomas H. Mehlitz
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Thomas H. Mehlitz:

Temperature Influence and Heat Management Requirements of Microalgae Cultivation in Photobioreactors - Taschenbuch

2009, ISBN: 3640382250

ID: 9853117223

[EAN: 9783640382255], Neubuch, [PU: Grin Verlag Jul 2009], This item is printed on demand - Print on Demand Titel. - Master's Thesis from the year 2009 in the subject Agrarian Studies, grade: 1, California Polytechnic State University, language: English, abstract: Microalgae are considered one of the most promising feedstocks for biofuel production for the future. The most efficient way to produce vast amounts of algal biomass is the use of closed tubular photobioreactors (PBR). The heat requirement for a given system is a major concern since the best algae growth rates are obtained between 25-30 °C, depending on the specific strain. A procedure to determine temperature influence on algal growth rates was developed for a lab-scale PBR system using the species Chlorella. A maximum growth rate of 1.44 doublings per day at 29 °C (optimal temperature) was determined. In addition, a dynamic mathematical model was developed to simulate heating and cooling energy requirements of tubular PBRs for any desired location. Operating the model with hourly weather data as input, heating and cooling loads can be calculated early in the planning stage of a project. Furthermore, the model makes it possible to compare the operation inside a greenhouse to the outdoor operations, and consequently provides fundamental information for an economic feasibility study. The best configuration for a specific location can be evaluated easily. The model was exemplary tested for a hypothetical 100,000 l photobioreactor located in San Luis Obispo, California, U.S.A. Average algae productivity rates of 23% and 67% for outdoor and indoor PBR operations, respectively, were obtained. Actual energy loads (heating and cooling) needed to maintain the PBR at optimal temperature were determined and compared. Sensitivity analyses had been performed for abrupt temperature and solar radiation steps, PBR row distances, ground reflectivities, and ventilation rates of the greenhouse. An optimal row distance of 0.75 m was determined for the specific PBR. The least amount of energy was needed for a ground reflectivity of 20%. The ventilation rate had no major influence on the productivity rate of the system. Results demonstrated the importance of a simulation model as well as the economic impact of a sophisticated heat management system. Energy savings due to an optimized heat management system will eventually increase proficiency of the systems, which will support a new sustainable industry and future developmental potential.Keywords: Microalgae, photobioreactor, temperature influence, heat management, biodiesel, ethanol, biofuel, algal biomass 152 pp. Englisch

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Temperature Influence and Heat Management Requirements of Microalgae Cultivation in Photobioreactors - Mehlitz, Thomas H.
Vergriffenes Buch, derzeit bei uns nicht verfügbar.
(*)
Mehlitz, Thomas H.:
Temperature Influence and Heat Management Requirements of Microalgae Cultivation in Photobioreactors - Taschenbuch

2009

ISBN: 9783640382255

[ED: Softcover], [PU: Grin Verlag], Master's Thesis from the year 2009 in the subject Agrarian Studies, grade: 1, California Polytechnic State University, language: English, abstract: Microalgae are considered one of the most promising feedstocks for biofuel production for the future. The most efficient way to produce vast amounts of algal biomass is the use of closed tubular photobioreactors (PBR). The heat requirement for a given system is a major concern since the best algae growth rates are obtained between 25-30 C, depending on the specific strain. A procedure to determine temperature influence on algal growth rates was developed for a lab-scale PBR system using the species Chlorella. A maximum growth rate of 1.44 doublings per day at 29 C (optimal temperature) was determined. In addition, a dynamic mathematical model was developed to simulate heating and cooling energy requirements of tubular PBRs for any desired location. Operating the model with hourly weather data as input, heating and cooling loads can be calculated early in the planning stage of a project. Furthermore, the model makes it possible to compare the operation inside a greenhouse to the outdoor operations, and consequently provides fundamental information for an economic feasibility study. The best configuration for a specific location can be evaluated easily. The model was exemplary tested for a hypothetical 100,000 l photobioreactor located in San Luis Obispo, California, U.S.A. Average algae productivity rates of 23% and 67% for outdoor and indoor PBR operations, respectively, were obtained. Actual energy loads (heating and cooling) needed to maintain the PBR at optimal temperature were determined and compared. Sensitivity analyses had been performed for abrupt temperature and solar radiation steps, PBR row distances, ground reflectivities, and ventilation rates of the greenhouse. An optimal row distance of 0.75 m was determined for the specific PBR. The least amount of energy was needed for a ground reflectivity of 20%. The ventilation rate had no major influence on the productivity rate of the system. Results demonstrated the importance of a simulation model as well as the economic impact of a sophisticated heat management system. Energy savings due to an optimized heat management system will eventually increase proficiency of the systems, which will support a new sustainable industry and future developmental potential.Keywords: Microalgae, photobioreactor, temperature influence, heat management, biodiesel, ethanol, biofuel, algal biomass2009. 148 S. 5 Farbabb. 210 mmVersandfertig in 3-5 Tagen, [SC: 0.00]

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Temperature Influence and Heat Management Requirements of Microalgae Cultivation in Photobioreactors - Thomas H. Mehlitz
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Thomas H. Mehlitz:
Temperature Influence and Heat Management Requirements of Microalgae Cultivation in Photobioreactors - gebrauchtes Buch

2013, ISBN: 9783640382255

ID: 656500372

Master's Thesis from the year 2009 in the subject Agrarian Studies, grade: 1, California Polytechnic State University, language: English, abstract: Microalgae are considered one of the most promising feedstocks for biofuel production for the future. The most efficient way to produce vast amounts of algal biomass is the use of closed tubular photobioreactors (PBR). The heat requirement for a given system is a major concern since the best algae growth rates are obtained between 25-30 �C, depending on the specific strain. A procedure to determine temperature influence on algal growth rates was developed for a lab-scale PBR system using the species Chlorella. A maximum growth rate of 1.44 doublings per day at 29 �C (optimal temperature) was determined. In addition, a dynamic mathematical model was developed to simulate heating and cooling energy requirements of tubular PBRs for any desired location. Operating the model with hourly weather data as input, heating and cooling loads can be calculated early in the planning stage of a project. Furthermore, the model makes it possible to compare the operation inside a greenhouse to the outdoor operations, and consequently provides fundamental information for an economic feasibility study. The best configuration for a specific location can be evaluated easily. The model was exemplary tested for a hypothetical 100,000 l photobioreactor located in San Luis Obispo, California, U.S.A. Average algae productivity rates of 23% and 67% for outdoor and indoor PBR operations, respectively, were obtained. Actual energy loads (heating and cooling) needed to maintain the PBR at optimal temperature were determined and compared. Sensitivity analyses had been performed for abrupt temperature and solar radiation steps, PBR row distances, ground reflectivities, and ventilation rates of the greenhouse. An optimal row distance of 0.75 m was determined for the specific PBR. The least amount of energy was needed for a ground reflectivity of 20%. The Weight:0.44 lbs, GRIN Verlag, 8/10/2013 0:00:00

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Temperature Influence and Heat Management Requirements of Microalgae Cultivation in Photobioreactors - Mehlitz, Thomas H.
Vergriffenes Buch, derzeit bei uns nicht verfügbar.
(*)
Mehlitz, Thomas H.:
Temperature Influence and Heat Management Requirements of Microalgae Cultivation in Photobioreactors - Taschenbuch

2009, ISBN: 9783640382255

[ED: Softcover], [PU: Grin Verlag], Master's Thesis from the year 2009 in the subject Agrarian Studies, grade: 1, California Polytechnic State University, language: English, abstract: Microalgae are considered one of the most promising feedstocks for biofuel production for the future. The most efficient way to produce vast amounts of algal biomass is the use of closed tubular photobioreactors (PBR). The heat requirement for a given system is a major concern since the best algae growth rates are obtained between 25-30 C, depending on the specific strain. A procedure to determine temperature influence on algal growth rates was developed for a lab-scale PBR system using the species Chlorella. A maximum growth rate of 1.44 doublings per day at 29 C (optimal temperature) was determined. In addition, a dynamic mathematical model was developed to simulate heating and cooling energy requirements of tubular PBRs for any desired location. Operating the model with hourly weather data as input, heating and cooling loads can be calculated early in the planning stage of a project. Furthermore, the model makes it possible to compare the operation inside a greenhouse to the outdoor operations, and consequently provides fundamental information for an economic feasibility study. The best configuration for a specific location can be evaluated easily. The model was exemplary tested for a hypothetical 100,000 l photobioreactor located in San Luis Obispo, California, U.S.A. Average algae productivity rates of 23% and 67% for outdoor and indoor PBR operations, respectively, were obtained. Actual energy loads (heating and cooling) needed to maintain the PBR at optimal temperature were determined and compared. Sensitivity analyses had been performed for abrupt temperature and solar radiation steps, PBR row distances, ground reflectivities, and ventilation rates of the greenhouse. An optimal row distance of 0.75 m was determined for the specific PBR. The least amount o 2009. 148 S. 5 Farbabb. 210 mm Versandfertig in 3-5 Tagen, [SC: 0.00], Neuware, gewerbliches Angebot

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Temperature Influence and Heat Management Requirements of Microalgae Cultivation in Photobioreactors
Autor:

Mehlitz, Thomas H.

Titel:

Temperature Influence and Heat Management Requirements of Microalgae Cultivation in Photobioreactors

ISBN-Nummer:

3640382250

Master Thesis from the year 2009 in the subject Agrarian Studies, grade: 1, California Polytechnic State University, language: English, abstract: Microalgae are considered one of the most promising feedstocks for biofuel production for the future. The most efficient way to produce vast amounts of algal biomass is the use of closed tubular photobioreactors (PBR). The heat requirement for a given system is a major concern since the best algae growth rates are obtained between 25-30 °C, depending on the specific strain. A procedure to determine temperature influence on algal growth rates was developed for a lab-scale PBR system using the species Chlorella. A maximum growth rate of 1.44 doublings per day at 29 °C (optimal temperature) was determined. In addition, a dynamic mathematical model was developed to simulate heating and cooling energy requirements of tubular PBRs for any desired location. Operating the model with hourly weather data as input, heating and cooling loads can be calculated early in the planning stage of a project. Furthermore, the model makes it possible to compare the operation inside a greenhouse to the outdoor operations, and consequently provides fundamental information for an economic feasibility study. The best configuration for a specific location can be evaluated easily. The model was exemplary tested for a hypothetical 100,000 l photobioreactor located in San Luis Obispo, California, U.S.A. Average algae productivity rates of 23% and 67% for outdoor and indoor PBR operations, respectively, were obtained. Actual energy loads (heating and cooling) needed to maintain the PBR at optimal temperature were determined and compared. Sensitivity analyses had been performed for abrupt temperature and solar radiation steps, PBR row distances, ground reflectivities, and ventilation rates of the greenhouse. An optimal row distance of 0.75 m was determined for the specific PBR. The least amount of energy was needed for a ground reflectivity of 20%. The ventilation rate had no major influence on the productivity rate of the system. Results demonstrated the importance of a simulation model as well as the economic impact of a sophisticated heat management system. Energy savings due to an optimized heat management system will eventually increase proficiency of the systems, which will support a new sustainable industry and future developmental potential.Keywords: Microalgae, photobioreactor, temperature influence, heat management, biodiesel, ethanol, biofuel, algal biomass

Detailangaben zum Buch - Temperature Influence and Heat Management Requirements of Microalgae Cultivation in Photobioreactors


EAN (ISBN-13): 9783640382255
ISBN (ISBN-10): 3640382250
Taschenbuch
Erscheinungsjahr: 2009
Herausgeber: GRIN Verlag
152 Seiten
Gewicht: 0,224 kg
Sprache: eng/Englisch

Buch in der Datenbank seit 27.04.2010 12:27:50
Buch zuletzt gefunden am 22.11.2016 08:32:29
ISBN/EAN: 3640382250

ISBN - alternative Schreibweisen:
3-640-38225-0, 978-3-640-38225-5

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