Storage volume

Particle Size Reduction. Changes in the physical characteristics of a biomass feedstock often are requited before it can be used as a fuel. Particle size reduction (qv) is performed to prepare the material for direct fuel use, for fabrication into fuel pellets, or for a conversion process. Particle size of the biomass also is reduced to reduce its storage volume, to transport the material as a slurry or pneumatically, or to faciHtate separation of the components. 

Density Separation Storage Volume Required Size Modification or Separation Size Reduction Dissolution... 

Small businesses eovered by this rule often will have proeesses that have less storage volume and less eapaeity, and may be less eomplieated than proeesses at a large faeility. Therefore, OSHA would antieipate that the less eomplex methodologies would be used to meet the proeess hazard analysis eriteria in the standard. These proeess hazard analyses ean be done in less time and with fewer people being involved. A less eomplex proeess generally means that less data, P IDs, and proeess information are needed to perform a proeess hazard analysis. 

Gases are stored at high pressures in order to fulfill a process requirement or to reduce the storage volume. For some gases, the volume can be further reduced by liquefying the gas using pressure or refrigeration. Cylindrical and spherical vessels (Horton spheres) are used. 

Figure 6-3 shows the hydrologic cycle as seven primary reservoirs interconnected by a number of water fluxes. The role of each reservoir in the hydrologic cycle and its connections with other cycles is briefly summarized below, in order of storage volume. 

Average turnover time (defined as storage volume divided by annual inflow or outflow volume, assuming steady state) is a measure of... 

The system concept demanded for a system driven solely by solar, no additional fossil fuel should be used. Therefore, the required storage volume and the investment costs for collector array and storage have been calculated as a function of collector array size and solar fraction. A computer simulation of the system has been made evaluating the seasonal performance of the system under the meteorological conditions of Amberg. Figure 272 shows the results. 

On the right hand side of Figure 13 lines of constant collector array size indicate the storage volume needed to achieve a certain solar fraction. The larger the collector array size, the smaller is the required volume of the stored desiccant for a given solar fraction. The left hand side of Figure 13 shows the related investment costs. A collector array size of 60 m2 and a storage volume of 8.5 m3 turn out to be the most economic solution to achieve 100% solar operation. 

The storage requirements associated with continuous processes were discussed in Chapter 13. The minimum storage volume in batch processes is equal to the delivered batch size for feed materials, or the manufactured quantity per batch for the product. 

In an investigation which was performed by Kopp et al. in 2009, to estimate the effective storage capacity, some models were proposed by authors, including(l) CSLF model (proposed by Bachu et al. in 2007 in which the effective storage volume is calculated by reducing the capacity... 

The optimum mix of N2 and C02 in the injection gas depends on the technical and commercial requirements of the process. If C02 storage volume is the only consideration, the injected gas should be... 

C02. If rapid maximization of hydrocarbon gas recovery is the only consideration, the injected gas should be 100% N2. The commercial and storage compromise will be between these two cases. We expect that the optimum commercial application will involve injecting variable gas composition to control storage volumes and the amount of N2 in the produced gas stream. The range of the N2 content in the injected gas is likely to be between 25% and 75%. 

Farm type of plant digester working volume (m3) mixing system heating system gas storage volume (m3) biogas use... 

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