A. Translate the terms in the table below paying attention to their contextual meaning.
Date: 2015-10-07; view: 507.
Do the following tasks trying to memorize as many terms as possible commonly used in the field of ventilation.
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Unit 3_________________________________________Ventilation
UNIT 3
| Aerosol | Particles (solid or liquid) that remain suspended in air for a period of time. Aerosols include mists, smokes, fumes, and dusts. |
| Allergen | A substance capable of causing an allergic reaction because of an individual's sensitivity to that substance. |
| Biological Contaminants | Agents derived from, or that are, living organisms (e.g., viruses, bacteria, fungi, and mammal and bird antigens) that can be inhaled and can cause many types of health effects including allergic reactions, respiratory disorders, hypersensitivity diseases, and infectious diseases. |
| Breathing Zone | Area of a room in which occupants breathe as they stand, sit, or lie down. |
| Commissioning | Start-up of a building that includes testing and adjusting HVAC, electrical, plumbing, and other systems to assure proper functioning and adherence to design criteria. Commissioning also includes the instruction of building representatives in the use of the building systems. |
| Contaminant | A harmful, irritating material that is foreign to the normal atmosphere. |
| Dampers | Controls that vary airflow through an air outlet, inlet, or duct. A damper position may be immovable, manually adjustable or part of an automated control system. |
| Density | Density is the weight of a unit volume of a substance: Air = 0.075 pounds per cubic foot (1.2 kg/cubic meter) Water = 62.3 pounds per cubic foot (1 kg/liter) |
| Diffuser | An air outlet; sometimes associated with an inlet air register; constructed of perforated metal plates to discharge and mix supply air with ambient room air. |
| Drain Trap | A dip in the drain pipe of sinks, toilets, floor drains, etc., which is designed to stay filled with water, thereby preventing sewer gases from escaping into the room. |
| Duct | A thin walled' low. |
| Dust | Mechanically produced solid particles (e.g. from crushing, drilling, grinding, sweeping, or handling of solid materials). |
| Fume | Solid particles generated by condensation from the gaseous state, generally after volatilization' from melteusubstance (e.g. welding), and often accompanied by a chemical reaction such as oxidation. Gases and vapours are not fumes. |
| Mist | An aerosol consisting of liquid particles generated by condensation of a substance from the gaseous to the liquid state. |
| Organic Compounds | Chemicals that contain carbon. Volatile organic compounds vaporize at room temperature and pressure. They are found in many indoor sources, including many common household products and building materials. |
| Plenum | Air compartment connected to a duct or ducts. |
| Specific Gravity | This is the ratio of the mass of a unit volume of a substance to the mass of the same volume of a standard substance. For example, Specific Gravity of Water = 1.0 at 39.2°F |
| Unit Ventilator | A fan-coil unit package device for applications in which the use of outdoor- and return-air mixing is intended to satisfy tempering requirements and ventilation needs. |
| Vapour | The gaseous state of a substance that is solid or liquid at room temperature and pressure. |
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| | | C. Match the terms including the word “pressure” with their definitions. Translate them into Russian. |