Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

Areas sheltered

For reclamations in areas sheltered from sea and swell waves (like estuaries, lakes or rivers) it is relevant to know the potential impact of ship-induced waves. Ship-waves can be derived from in-situ measurements, from general relations (e.g., PIANC rules) or from modelling. [Pg.570]

Tidal notches are well known as precise sea-level indicators that usually undercut limestone cliffs in the midlittoral zone (e.g., Pirazzoli 1986), which renders them the most important erosional geomorphological sea-level indicators. In microtidal areas sheltered from wave action, elevated or submerged notches are used to indicate former sea-level positions, with up to a decimeter confidence. [Pg.1816]

It is advisable to place air depolarized batteries in a well ventilated area. Sheltered containers are recommended in cold or hot climates. In order that the batteries function correctly, allow 1 litre of air per battery and per discharged ampere hour. Air depolarized batteries must be stored and used in an upright position. [Pg.696]

Facilities — emergency operating center, media briefing area, shelter areas, first aid stations, and sanitation facilities. [Pg.367]

Landfill-operation plan. The layout of the site and the development of a workable operating schedule are the main features of a landfill-operation plan. In planning the layout of a landfill site, the location of the following must be determined (1) access roads (2) equipment shelters (3) scales, if used (4) storage sites for special wastes (5) topsoil-stockpile sites (6) landfill areas and (7) plantings. [Pg.2257]

The compressor or blower installation in a typical refinery or chemical process unit is not out-of-doors completely. Some form of shelter often is provided, ranging from only a roof to a completely closed building. When process equipment such as a centrifugal gas compressor, which is not hazardous in normal operation, is present in the shelter, the hazard classification depends on the extent to that which the shelter restricts ventilation. The extent of the shelter provided determines the area classification and the type of motor enclosure that should be applied. [Pg.275]

It is generally agreed that a shelter with a roof having ridge ventilation and with curtain walls not extending lower than 8 feet above the operating platform would be freely ventilated. Because a gas compressor would not be a source of hazard, except under abnormal conditions such as an equipment failure, this type of compressor shelter is usually classified as a Division 2 area. [Pg.275]

Recognizing all the factors mentioned, the drip-proof type has been the favored enclosure for service in shelters classified Division 2 or in safe areas because it offers adequate protection at the lowest installed cost (see Figure 7-6). In most applications, air-inlake filters and screens have been provided. In one instance, a modified drip-proof enclosure was installed with provision for future filter installation. [Pg.277]

It should be noted that the above maximum radiant heat density criteria for application to inadvertently ignited atmospheric releases from pressure relief valves or vents are less restrictive than those used for flare design. This results from the fact that flares are continuously ignited, whereas ignition of a relieving PR valve is unlikely. In addition, the area surrounding a flare is open and offers no protection, while within a process unit access to shelter is available. [Pg.201]

Provision for eool rest areas, ineluding shelters within the exehision zone ... [Pg.270]

Heat intensity on structures and in areas where operators are not likely to be performing duties and w here shelter from radiant heat is available (for example, behind equipment)... [Pg.533]

Another disadvantage is that fragile substrates used in VLSI, such as some III-V and II-VI semiconductors materials, can be damaged by the ion bombardment from the plasma, particularly if the ion energy exceeds 20 eV. In addition, the plasma reacts strongly with the surface of the coating as it is deposited. This means that the deposition rate and often the film properties depend on the uniformity of the plasma. Areas of the substrate fully exposed will be more affected than the more sheltered ones. Finally, the equipment is generally more complicated and more expensive. [Pg.142]

Dead bodies can be naturally mummified under a variety of environmental conditions, such as (1) at extremely low temperatures, about and below the freezing point of water, in extremely cold regions of the world (2) in very dry and hot environments, as in desert areas and in some caves and rock shelters or (3) under anaerobic (oxygen-free) conditions, as in bogs (see Chapter 8). [Pg.418]

During the Late Pleniglacial, between 20,000 and 13,000 BP, some 25% of the land surface became covered with continental ice sheets (versus some 10% today). With so much water stored in ice sheets, the sea level dropped to about 120 meters below the present level and large parts of the world became extremely arid. The Amazon rain forest dwindled to isolated refugia, European forests disappeared but for small sheltered areas, and large parts of the globe turned to tundra, steppe, savannah or desert. [Pg.15]

Another application or example of phytoremediation is phytostabilization by reforestation, such as the reclamation of metalliferous mine wastes. Phytostabilization is the stabilization of contaminants in surface soils (especially in root zones) by preventing them from leaching down profiles or entering surface runoff. The additional benefits of reforestation in reclamation include supplying local timber needs, the provision of employment in rural areas, the enhancement of the surrounding scenery, the establishment of perimeter wind breaks and shelter belts, the provision of food and shelter for wildlife, and the reduction of surface water and resulting erosion (Williamson and Johnson, 1981). [Pg.301]

As a preventive measure, gas detectors are normally placed at the air intakes of manned facilities, critical switchgear shelters and internal combustion engines subject to vapor exposures, i.e., near process areas handling gases and vapor. The facility air intakes themselves should be positioned to prevent the intake of combustible gases from these areas, even during accident scenarios. [Pg.186]

Combustible gas detection for air intakes should be considered when the enclosures are in proximity to hydrocarbon processes. This is especially important when the processes can be demonstrated to be within areas where a WCCE release will not have dissipated at the distance the facility is placed from it. An alternative is to have the air handling system self circulating so it does not direct fresh air supplies in from the outside. Such systems are normally provided at unmanned shelters. [Pg.235]

Strength Response personnel were instructed to clear the area by GVW Fire Chief upon realization of imminent danger. Access/Egress zones implemented through quick establishment of roadblocks. Immediate area evacuated (300 yards) shelter-in-place for within 1... [Pg.7]

Strength Personnel initially isolated the incident scene and surrounding area through conservative estimation by the ACSO shift supervisor. DOT Emergency Response Guide was used to determine 1.5 mile radius as initial protective isolation distance. Electronic version to be added to CP (Command Post) laptops. Key representatives of fire, law enforcement and emergency services at Command Post actively discussed evacuation versus shelter-in-place. [Pg.11]

Improvement Item 211 (Aiken County Help Line) received calls immediately but had no information to provide initially. 211 received updated information via television news report. As a result, 211 personnel did not learn key information such as the shelter-inplace message that had been transmitted to residents. 211 was not accessible via cell phone. Additional number needs to be provided. EOC was receiving updated information via television news reports. Media staging area was located too close to CP. [Pg.17]


See other pages where Areas sheltered is mentioned: [Pg.1907]    [Pg.86]    [Pg.304]    [Pg.41]    [Pg.30]    [Pg.217]    [Pg.1907]    [Pg.86]    [Pg.304]    [Pg.41]    [Pg.30]    [Pg.217]    [Pg.118]    [Pg.577]    [Pg.212]    [Pg.431]    [Pg.499]    [Pg.544]    [Pg.46]    [Pg.510]    [Pg.1160]    [Pg.25]    [Pg.206]    [Pg.426]    [Pg.1106]    [Pg.155]    [Pg.66]    [Pg.68]    [Pg.132]    [Pg.151]    [Pg.112]    [Pg.31]    [Pg.31]    [Pg.32]    [Pg.205]    [Pg.159]   
See also in sourсe #XX -- [ Pg.426 ]




SEARCH



Shelter

© 2024 chempedia.info