Storage dry matter losses

Bale density (Ib/ft ) Collection efflolenoy (%) Grain yield (bu/ac) Stalk chopping speed (mph) Stalk chopping field efflolenoy (%) Baling field efflolenoy (%) Baling moisture (%) Baling rate (bale/hr) Transport distance (ml) Off-road diesel ( /gal) Transport speed (mph) Harvest window (wks) Transport load/unload rate (bale/hr) Storage dry matter loss (%)... 

Biomass yield variables—those that affect the mass per acre delivered to the biorefinery—are particularly important since they reside at the front end of the feedstock supply chain and thus have broad impacts that extend through the entire supply chain. In fact, biomass yield affects many of the other variable categories identified in the analysis, including machinery performance and system variables (harvest window and transportation distance). Accordingly, uncertainties of biomass yield variables—particularly collection efficiency and storage dry matter losses—are the focus of the discussion that follows. 

Coble CG, Egg R. (1987). Dry matter losses during hay production and storage of sweet sorghum used for methane production. Biomass, 14, 209-217. 

Jerusalem artichoke tubers can be successfully stored for up to 6 to 12 months, if held at temperatures between 0 and 2°C and a high relative humidity. Success is highly cultivar dependent, with some cultivars being much more susceptible to storage losses (Steinbauer, 1932). With low humidity, the tubers shrivel readily and are more likely to decay than if kept in a moist atmosphere. While stored tubers have relatively low respiratory rates when held at low temperature (Table 13.1) (Peiris et al 1997), there is a slow but progressive loss in dry matter due to respiration (e.g., 16.2 gTOO kg1 day1 at 0°C). Likewise, the tubers produce heat (vital or respiratory heat, e.g., Ill J kg1 h 1 at 0°C), which must be removed if the product temperature is to be maintained at the desired level. 

Storage of renewable raw materials comes along with several risks concerning loss of dry matter and quality. Depending on the type of raw material, its water... 

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