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Atmospheric Leakage And Condensate Production In Nasas Biomass Production Chamber Effect Of Diurnal Temperature Cycles
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Author :National Aeronautics and Space Administration (NASA) Publisher :Createspace Independent Publishing Platform ISBN 13 :9781725172647 Total Pages :34 pages Book Rating :4.1/5 (726 download)
Book Synopsis Atmospheric Leakage and Condensate Production in Nasa's Biomass Production Chamber. Effect of Diurnal Temperature Cycles by : National Aeronautics and Space Administration (NASA)
Download or read book Atmospheric Leakage and Condensate Production in Nasa's Biomass Production Chamber. Effect of Diurnal Temperature Cycles written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-08-16 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt: A series of tests were conducted to monitor atmospheric leakage rate and condensate production in NASA's Biomass Production Chamber (BPC). Water was circulated through the 64 plant culture trays inside the chamber during the tests but no plants were present. Environmental conditions were set to a 12-hr photoperiod with either a matching 26 C (light)/20 C (dark) thermoperiod, or a constant 23 C temperature. Leakage, as determined by carbon dioxide decay rates, averaged about 9.8 percent for the 26 C/20 C regime and 7.3 percent for the constant 23 C regime. Increasing the temperature from 20 C to 26 C caused a temporary increase in pressure (up to 0.5 kPa) relative to ambient, while decreasing the temperature caused a temporary decrease in pressure of similar magnitude. Little pressure change was observed during transition between 23 C (light) and 23 C (dark). The lack of large pressure events under isothermal conditions may explain the lower leakage rate observed. When only the plant support inserts were placed in the culture trays, condensate production averaged about 37 liters per day. Placing acrylic germination covers over the tops of culture trays reduced condensate production to about 7 liters per day. During both tests, condensate production from the lower air handling system was 60 to 70 percent greater than from the upper system, suggesting imbalances exist in chilled and hot water flows for the two air handling systems. Results indicate that atmospheric leakage rates are sufficiently low to measure CO2 exchange rates by plants and the accumulation of certain volatile contaminants (e.g., ethylene). Control system changes are recommended in order to balance operational differences (e.g., humidity and temperature) between the two halves of the chamber. Wheeler, Raymond M. and Drese, John H. and Sager, John C. Kennedy Space Center NASA-TM-103819, NAS 1.15:103819 NAS10-11624...
Book Synopsis Atmospheric Leakage and Condensate Production in NASA's Biomass Production Chamber. Effect of Diurnal Temperature Cycles by :
Download or read book Atmospheric Leakage and Condensate Production in NASA's Biomass Production Chamber. Effect of Diurnal Temperature Cycles written by and published by . This book was released on 1991 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1991 with total page 1102 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Monthly Catalog of United States Government Publications by :
Download or read book Monthly Catalog of United States Government Publications written by and published by . This book was released on 1995 with total page 1092 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Monthly Catalogue, United States Public Documents by :
Download or read book Monthly Catalogue, United States Public Documents written by and published by . This book was released on 1995-12 with total page 1094 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Aerospace Medicine and Biology written by and published by . This book was released on 1991 with total page 240 pages. Available in PDF, EPUB and Kindle. Book excerpt: A selection of annotated references to unclassified reports and journal articles that were introduced into the NASA scientific and technical information system and announced in Scientific and technical aerospace reports (STAR) and International aerospace abstracts (IAA).
Book Synopsis Crop Production for Advanced Life Support Systems - Observations From the Kennedy Space Center Breadboard Project by :
Download or read book Crop Production for Advanced Life Support Systems - Observations From the Kennedy Space Center Breadboard Project written by and published by . This book was released on 2003 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Government Reports Announcements & Index by :
Download or read book Government Reports Announcements & Index written by and published by . This book was released on 1991 with total page 1022 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Life Sciences written by R M Wheeler and published by Elsevier. This book was released on 1998-02-20 with total page 278 pages. Available in PDF, EPUB and Kindle. Book excerpt: This publication contains 36 papers presented at four symposia during the Thirty-first COSPAR Scientific Assembly held in Birmingham, UK during 1996. Papers reflect the following symposia themes: life science support system studies; production, processing and waste recycling in a CELSS (Controlled Ecological Life Support System); biological effects of closure and recycling in a CELSS; nutrition and productivity for bioregenerative life support; integration of bioregenerative and physical/chemical processes for space life support systems. Findings presented in this volume will be a valuable resource for CELSS researchers for many years to come.
Book Synopsis National Aeronautics and Space Administration (NASA)/American Society for Engineering Education (ASEE) Summer Faculty Fellowship Program: 1995 by :
Download or read book National Aeronautics and Space Administration (NASA)/American Society for Engineering Education (ASEE) Summer Faculty Fellowship Program: 1995 written by and published by . This book was released on 1996 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Proceedings of the International Symposium on Cereal Adaptation to Low Temperature Stress in Controlled Environments by : Zoltán Bedő
Download or read book Proceedings of the International Symposium on Cereal Adaptation to Low Temperature Stress in Controlled Environments written by Zoltán Bedő and published by . This book was released on 1997 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Publications of the NASA Controlled Ecological Life Support System (CELSS) Program 1989-1992 by : Janet V. Powers
Download or read book Publications of the NASA Controlled Ecological Life Support System (CELSS) Program 1989-1992 written by Janet V. Powers and published by . This book was released on 1994 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Acta Agronomica Hungarica written by and published by . This book was released on 1986 with total page 964 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Government Reports Annual Index by :
Download or read book Government Reports Annual Index written by and published by . This book was released on 1991 with total page 1768 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Publications of the NASA Controlled Ecological Life Support Systems (CELSS) Program 1989-1992 by : Janet V. Powers
Download or read book Publications of the NASA Controlled Ecological Life Support Systems (CELSS) Program 1989-1992 written by Janet V. Powers and published by . This book was released on 1994 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Man-Made Closed Ecological Systems by : J.I. Gitelson
Download or read book Man-Made Closed Ecological Systems written by J.I. Gitelson and published by CRC Press. This book was released on 2002-12-26 with total page 418 pages. Available in PDF, EPUB and Kindle. Book excerpt: Providing a broad historical perspective, this book explores the interactions between humans, microorganisms, and plants in a closed habitat, and the life support systems necessary to maintain habitability over long periods of time. Topics include the cultivation of bacteria, microalgae and higher plants; the use of biotechnology to support life outside the Earth's biosphere; methods for recycling air, water and food for human consumption; interactions between humans and other organisms in CMESs; and methods for intensifying the level of photosynthesis. In addition to space the authors investigate problems associated with living conditions in dangerous or difficult environmental areas on Earth such as the Arctic and Antarctica, deserts and mountains.
Author :National Academies of Sciences, Engineering, and Medicine Publisher :National Academies Press ISBN 13 :0309492432 Total Pages :29 pages Book Rating :4.3/5 (94 download)
Book Synopsis Thriving on Our Changing Planet: A Decadal Strategy for Earth Observation from Space by : National Academies of Sciences, Engineering, and Medicine
Download or read book Thriving on Our Changing Planet: A Decadal Strategy for Earth Observation from Space written by National Academies of Sciences, Engineering, and Medicine and published by National Academies Press. This book was released on 2019-06-18 with total page 29 pages. Available in PDF, EPUB and Kindle. Book excerpt: We live on a dynamic Earth shaped by both natural processes and the impacts of humans on their environment. It is in our collective interest to observe and understand our planet, and to predict future behavior to the extent possible, in order to effectively manage resources, successfully respond to threats from natural and human-induced environmental change, and capitalize on the opportunities â€" social, economic, security, and more â€" that such knowledge can bring. By continuously monitoring and exploring Earth, developing a deep understanding of its evolving behavior, and characterizing the processes that shape and reshape the environment in which we live, we not only advance knowledge and basic discovery about our planet, but we further develop the foundation upon which benefits to society are built. Thriving on Our Changing Planet: A Decadal Strategy for Earth Observation from Space (National Academies Press, 2018) provides detailed guidance on how relevant federal agencies can ensure that the United States receives the maximum benefit from its investments in Earth observations from space, while operating within realistic cost constraints. This short booklet, designed to be accessible to the general public, provides a summary of the key ideas and recommendations from the full decadal survey report.
