Maintenance general

Traction Thickeners These thickeners are most adaptable to tanks larger than 60 m (200 ft) in diameter. Maintenance generally is less difficult than with other types of thickeners, which is an advantage... 

Maintenance generally claimed to be Vs or less than water coolers. Clean fins by compressed air and brushes, sometimes while operating. 

As 1n any economic study certain assumptions must be made. It 1s not the Intent of this paper to analyze cost factors 1n fine detail, but rather to examine and compare the major direct cost contributors 1n molding large plastic parts by these major process techniques. These direct cost factors are productivity, raw materials, process energy, tooling, flxturlng, hourly labor and capital. Indirect costs that are based on these direct cost Items are not considered 1n this study. Such Indirect Items Include supervision, maintenance, general plant overhead, Insurance, taxes and building depreciation. 

Reduced maintenance generally results in a higher on-line factor.7 Maintenance costs may be reduced when using OEC in waste incineration. One cost reduction that has been demonstrated is a reduction in dust buildup in an SCC, which is discussed in more detail in Section 8.2.3.3. Another reduction in maintenance costs may result... 

Uses Polyol in two-component urethane and coil coatings, epoxy maintenance, general industrial, and leather coatings Feabffes Offers better pot life with isocyanate and melamine crosslinkers bestflow/leveling... 

Uses Acrylic in wood coatings, metal coatings (automotive OEM, refinishing, components, maintenance, general industrial), plastic coatings Features Good adhesion to ABS, PC, vinyl good corrosion and water resist. 

The above-mentioned systems are generally considered low technology, but remain those of choice by most hatcheries because of their ease of use and maintenance, general reliability and low capital cost (or, in the case of bags, low replacement cost). However, these systems are typically characterised by low cell densities and productivities, i.e. for aquaculture strains often below 100 mg DW microalgae Ud compared to small volume cultures, or other PBR systems with significantly higher SA V (Table 4.3 and Tredici et aL, 2009). Examples of PBRs include tubular (serpentine. 

L - cost of mould maintenance (generally 5% of mould price), %/year M - interest on mould price (currently approximately 20%), %/year... 

Silver oxide eells have excellent service maintenance generally 90% after 1 year s storage at 2r C, and fcr up to 2 years without serious detriment. Cells will last up to 5 years in inactive sealed storage conditions. 

Random failures occur, as the name suggests, randomly and are the result of degradation mechanisms within the system. Often evaluated by means of failure rates (e.g. failures per hour of operation) or due to physical causes involving a range of mechanisms (e.g. lighting or problems during manufacture, installation or maintenance). Generally it is possible to quantitatively predict, with reasonable accuracy, failure rates for this type of failure. 

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