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Sash Greenhouses.

Description: Describes sash greenhouses. Provides plans for constructing and heating greenhouses.
Date: July 1958
Creator: Beattie, James H. (James Herbert), b. 1882
Partner: UNT Libraries Government Documents Department

Fumigation of Ornamental Greenhouse Plants with Hydrocyanic-Acid Gas

Description: "By the careful use of hydrocyanic-acid gas in accordance with the directions given in this bulletin practically all insects infesting the foliage of ornamental plants in greenhouses may be controlled, and more cheaply and effectively than by any other means." -- p. 2. Discusses methods for fumigation, chemical mixtures, ventilation, costs, and greenhouses in general. Includes a guide to greenhouse fumigation.
Date: 1917
Creator: Sasscer, E. R. (Ernest Ralph), b. 1883 & Borden, Arthur D. (Arthur Dickie), b. 1887
Partner: UNT Libraries Government Documents Department

Greenhouse effect

Description: A fiberglass greenhouse was built on the roof of a mobile home in Central Florida. It was learned that direct sunlight is essential for proper winter operation and ventilation is required during hot months to prevent overheating. (LEW)
Date: January 1, 1982
Partner: UNT Libraries Government Documents Department

Low-cost solar room kit. Final grant report

Description: A low cost solar room kit was developed which would make use of local framing materials, but provide inexperienced builders with a simple joining system and materials - such as glazings - not usually available in local stores. Since solar room applications are proven effective in providing supplementary home heat, a kit would make solar heat more accessible to home owners and tenants. Although a prototype and two working models of the kit were successfully built, commercial development cannot occur until problems in matching the glazing and framing system can be resolved, and more capital to lower production costs on the framing union pieces is available.
Date: unknown
Partner: UNT Libraries Government Documents Department

TVA pilot greenhouse for waste heat research

Description: A pilot facility for evaluating the use of waste heat from power plants, both fossil-fueled and nuclear, to heat a greenhouse was designed and built at the TVA reservation at Muscle Shoals, Ala. The simulation of waste heat was from an electric hot water heater. The subjects to be evaluated included: greenhouse environmental control system operation during one year period under wide range of climatic conditions and the crop performance, i.e., yield and disease control under various controlled-environment conditions and with various rooting media conditions. The facility design, control instrumentation, tests performed, and operating conditions obtained for airflow, air temperature, and humidity are described. No information is included on the crops produced. It is concluded that the pilot facility is providing valuable guidelines for the design of a larger demonstration plant to be located at an operating power plant. (LCL)
Date: January 1, 1973
Creator: King, L.D. & Furlong, W.K.
Partner: UNT Libraries Government Documents Department

Status of waste heat utilization and dual-purpose plant projects

Description: From joint meeting of the American Nuclear Society and the Atomic Industrial Forum and Nuclear Energy Exhibition; San Francisco, California, USA (11 Nov 1973). The use of power plant thermal effluents, in the form of warm water or steam, to heat buildings for raising both plant and animal food crops, in aquaculture to produce fish and seafood, in outdoor agriculture, and in industry for distilling water and processing chemicals is discussed and illustrated. Facilities engaged in studying each of these waste heat applications and the results of such studies are described. It is concluded that rising energy costs and diminishing natural supplies of food will provide the incentive for the funther development of commercial uses of waste heat from power plants. (LC L)
Date: January 1, 1973
Creator: Beall, S.E. Jr. & Yarosh, M.M.
Partner: UNT Libraries Government Documents Department

Effect of plants on sunspace passive solar heating

Description: The effect of plants on sunspace thermal performance is investigated, based on experiments done in Los Alamos using two test rooms with attached sunspaces, which were essentially identical except for the presence of plants in one. Performance is related to plant transpiration, evaporation from the soil, condensation on the glazing and the absorbtance of solar energy by the lightweight leaves. Performance effects have been quantified by measurements of auxiliary heat consumption in the test rooms and analyzed by means of energy balance calculations. A method for estimating the transpiration rate is presented.
Date: January 1, 1985
Creator: Best, E.D. & McFarland, R.D.
Partner: UNT Libraries Government Documents Department

Attached sunspace design analysis

Description: An introduction to new design analysis information for attached sunspaces is presented. The 28 sunspace reference designs are described. Note is taken of those designs (the semi-enclosed geometries) analyzed more recently than the previously published reports. The role of sensitivity studies is discussed, and some sample plots of sunspace performance sensitivity to key design parameters are presented. The monthly solar load ratio (SLR) correlations are reviewed with emphasis on the modified SLR used in the sunspace analysis. The application of the sunspace SLR correlations to monthly design analysis is outlined.
Date: January 1, 1981
Creator: Jones, R.W. & McFarland, R.D.
Partner: UNT Libraries Government Documents Department

Borehole Seismic Monitoring of Injected CO2 at the Frio Site

Description: As part of a small scale sequestration test (about 1500 tonsof CO2) in a saline aquifer, time-lapse borehole seismic surveys wereconducted to aid in characterization of subsurface CO2 distribution andmaterial property changes induced by the injected CO2. A VSP surveydemonstrated a large increase (about 75 percent) in seismic reflectivitydue to CO2 injection and allowed estimation of the spatial extent of CO2induced changes. A crosswell survey imaged a large seismic velocitydecrease (up to 500 m/s) within the injection interval and provided ahigh resolution image of this velocity change which maps the subsurfacedistribution of CO2 between two wells. Numerical modeling of the seismicresponse uses the crosswell measurements to show that this small CO2volume causes a large response in the seismic reflectivity. This resultdemonstrates that seismic detection of small CO2 volumes in salineaquifers is feasible and realistic.
Date: April 21, 2006
Creator: Daley, Thomas M.; Myer, Larry R.; Hoversten, G.M.; Peterson, JohnE. & Korneev, Valeri A.
Partner: UNT Libraries Government Documents Department

Geothermal(Ground-Source)Heat Pumps: Market Status, Barriers to Adoption, and Actions to Overcome Barriers

Description: More effective stewardship of our resources contributes to the security, environmental sustainability, and economic well-being of the nation. Buildings present one of the best opportunities to economically reduce energy consumption and limit greenhouse gas emissions. Geothermal heat pumps (GHPs), sometimes called ground-source heat pumps, have been proven capable of producing large reductions in energy use and peak demand in buildings. However, GHPs have received little attention at the policy level as an important component of a national strategy. Have policymakers mistakenly overlooked GHPs, or are GHPs simply unable to make a major contribution to the national goals for various reasons? This brief study was undertaken at DOE's request to address this conundrum. The scope of the study includes determining the status of global GHP markets and the status of the GHP industry and technology in the United States, assembling previous estimates of GHP energy savings potential, identifying key barriers to application of GHPs, and identifying actions that could accelerate market adoption of GHPs. The findings are documented in this report along with conclusions and recommendations.
Date: December 1, 2008
Creator: Hughes, Patrick
Partner: UNT Libraries Government Documents Department

Comparative Analysis of Modeling Studies on China's Future Energy and Emissions Outlook

Description: The past decade has seen the development of various scenarios describing long-term patterns of future Greenhouse Gas (GHG) emissions, with each new approach adding insights to our understanding of the changing dynamics of energy consumption and aggregate future energy trends. With the recent growing focus on China's energy use and emission mitigation potential, a range of Chinese outlook models have been developed across different institutions including in China's Energy Research Institute's 2050 China Energy and CO2 Emissions Report, McKinsey & Co's China's Green Revolution report, the UK Sussex Energy Group and Tyndall Centre's China's Energy Transition report, and the China-specific section of the IEA World Energy Outlook 2009. At the same time, the China Energy Group at Lawrence Berkeley National Laboratory (LBNL) has developed a bottom-up, end-use energy model for China with scenario analysis of energy and emission pathways out to 2050. A robust and credible energy and emission model will play a key role in informing policymakers by assessing efficiency policy impacts and understanding the dynamics of future energy consumption and energy saving and emission reduction potential. This is especially true for developing countries such as China, where uncertainties are greater while the economy continues to undergo rapid growth and industrialization. A slightly different assumption or storyline could result in significant discrepancies among different model results. Therefore, it is necessary to understand the key models in terms of their scope, methodologies, key driver assumptions and the associated findings. A comparative analysis of LBNL's energy end-use model scenarios with the five above studies was thus conducted to examine similarities and divergences in methodologies, scenario storylines, macroeconomic drivers and assumptions as well as aggregate energy and emission scenario results. Besides directly tracing different energy and CO{sub 2} savings potential back to the underlying strategies and combination of efficiency and abatement policy ...
Date: September 1, 2010
Creator: Zheng, Nina; Zhou, Nan & Fridley, David
Partner: UNT Libraries Government Documents Department

Phytosequestration: Carbon biosequestration by plants and the prospects of genetic engineering

Description: Photosynthetic assimilation of atmospheric carbon dioxide by land plants offers the underpinnings for terrestrial carbon (C) sequestration. A proportion of the C captured in plant biomass is partitioned to roots, where it enters the pools of soil organic C and soil inorganic C and can be sequestered for millennia. Bioenergy crops serve the dual role of providing biofuel that offsets fossil-fuel greenhouse gas (GHG) emissions and sequestering C in the soil through extensive root systems. Carbon captured in plant biomass can also contribute to C sequestration through the deliberate addition of biochar to soil, wood burial, or the use of durable plant products. Increasing our understanding of plant, microbial, and soil biology, and harnessing the benefits of traditional genetics and genetic engineering, will help us fully realize the GHG mitigation potential of phytosequestration.
Date: July 15, 2010
Creator: Jansson, C.; Wullschleger, S.D.; Kalluri, U.C. & Tuskan, G.A.
Partner: UNT Libraries Government Documents Department

Precipitation and soil impacts on partitioning of subsurface moisture in Avena barbata: Observations from a greenhouse experiment

Description: The primary objective of this study was to assess the impact of two grassland soils and precipitation regimes on soil-moisture dynamics. We set up an experiment in a greenhouse, and monitored soil moisture dynamics in mesocosms planted with Avena barbata, an annual species found in California grasslands. By repeating the precipitation input at regular intervals, we were able to observe plant manipulation of soil moisture during well-defined periods during the growing season. We found that the amount of water partitioned to evapotranspiration, seepage, and soil storage varied among different growth stages. Further, both soil type and precipitation regimes had a significant impact on redistributing soil moisture. Whereas in the low-precipitation treatments most water was released to the atmosphere as evapotranspiration, major losses from the high-precipitation treatment occurred as gravity drainage. Observations from this study emphasize the importance of understanding intra-seasonal relationships between vegetation, soil, and water.
Date: March 1, 2011
Creator: Salve, R. & Torn, M.S.
Partner: UNT Libraries Government Documents Department

Specific interactions between arbuscular mycorrhizal fungi and plant growth-promoting bacteria--as revealed by different combinations

Description: The interactions between two plant growth promoting rhizobacteria (PGPR), Pseudomonas fluorescens SBW25 and Paenibacillus brasilensis PB177, two arbuscular mycorrhizal (AM) fungi (Glomus mosseae and G. intraradices) and one pathogenic fungus (Microdochium nivale) were investigated on winter wheat (Triticum aestivum cultivar Tarso) in a greenhouse trial. PB177, but not SBW25, had strong inhibitory effects on M. nivale in dual culture plate assays. The results from the greenhouse experiment show very specific interactions; e.g. the two AM fungi react differently when interacting with the same bacteria on plants. G. intraradices (single inoculation or together with SBW25) increased plant dry weight on M. nivale infested plants, suggesting that the pathogenic fungus is counteracted by G. intraradices, but PB177 inhibited this positive effect. This is an example of two completely different reactions between the same AM fungus and two species of bacteria, previously known to enhance plant growth and inhibit pathogens. When searching for plant growth promoting microorganisms it is therefore important to test for the most suitable combination of plant, bacteria and fungi in order to get satisfactory plant growth benefits.
Date: May 15, 2008
Creator: Jaderlund, Lotta; Arthurson, Veronica; Granhall, Ulf & Jansson, Janet K.
Partner: UNT Libraries Government Documents Department

Reducing California's Greenhouse Gas Emissions through ProductLife-Cycle Optimization

Description: Product life-cycle optimization addresses the reduction ofenvironmental burdens associated with the production, use, andend-of-life stages of a product s life cycle. In this paper, we offer anevaluation of the opportunities related to product life-cycleoptimization in California for two key products: personal computers (PCs)and concrete. For each product, we present the results of an explorativecase study to identify specific opportunities for greenhouse gas (GHG)emissions reductions at each stage of the product life cycle. We thenoffer a discussion of the practical policy options that may exist forrealizing the identified GHG reduction opportunities. The case studiesdemonstrate that there may be significant GHG mitigation options as wellas a number of policy options that could lead to life-cycle GHG emissionsreductions for PCs and concrete in California.
Date: December 30, 2005
Creator: Masanet, Eric; Price, Lynn; de la Rue du Can, Stephane & Worrell,Ernst
Partner: UNT Libraries Government Documents Department

[Greenhouse]

Description: Photograph of the greenhouse in the Jardin des Plantes of Paris, France. In the foreground, a gray walkway sits in front of the greenhouse. The greenhouse is constructed of metal and glass. The exterior is visible in the foreground. Some vines grown around the structure.
Date: unknown
Creator: Gough, Ray
Partner: UNT College of Visual Arts + Design