what is the definition of cooling
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- The generic term cooling tower is used to describe both direct (open circuit) and indirect (closed circuit) heat rejection equipment. While most think of a cooling tower as an open direct contact heat rejection device, the indirect cooling tower, sometimes referred to as a closed circuit cooling tower is nonetheless also a cooling tower.
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- In the transition from cast steel to steel products, conditioning is the removal of surface defects from semi-finished steel like blooms, billets and slabs prior to rolling. This might involve grinding, machining or scarfing (removal of unwanted metal by torch cutting).
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- Definition of 'heating'. Word Frequency. heating (hiːtɪŋ ) 1. uncountable noun. Heating is the process of heating a building or room, considered especially from the point of view of how much this costs. You can still find cottages for £350 a week, including heating. ...heating bills. 2. uncountable noun. Heating is the system and equipment that is used to heat a building.
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Supercooling Supercooling is often confused with freezing-point depression. Supercooling is the cooling of a liquid below its freezing point without it becoming solid. Freezing point depression is when a solution can be cooled below the freezing point of the corresponding pure liquid due to the presence of the solute; an example of this is the freezing point depression that occurs when sodium chloride is added to pure water.
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- In a counter-flow cooling tower air travels upward through the fill or tube bundles, opposite to the downward motion of the water. In a cross-flow cooling tower air moves horizontally through the fill as the water moves downward. Cooling towers are also characterized by the means by which air is moved.he generic term cooling tower is used to describe both direct (open circuit) and indirect (closed circuit) heat rejection equipment. A direct, or open-circuit cooling tower is an enclosed structure with internal means to distribute the warm water fed to it over a labyrinth-like packing or fill..
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Definition of 'cooling-off period' There will be a cooling-off period of fourteen days following the issuance of a new policy to allow a purchaser to cancel the agreement. A cooling-off period is a set time limit within which policyholders have the right to cancel an insurance policy without any penalty. The consumer must be given the opportunity to withdraw from the concluded contract without incurring liability during the cooling-off period. There will be a cooling-off period of fourteen days following the issuance of a new policy to allow a purchaser to cancel the agreement.
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What is Evaporative Cooling? - Definition & Process As the water absorbs heat from the air, the air temperature decreases and is returned to the room. Evaporative cooling is also used to cool nuclear power plants. The heat from the nuclear core flows into water cooling systems. The water absorbs the heat and is released as steam from the power plant.
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GCSE Weather and Climate Vocabulary GCSE Weather and Climate Vocabulary. Adiabatic cooling/heating The rate of cooling (by expansion) as an air parcel rises. It is approximately 1 degrees Celsius per 100 metres. It is also the rate of heating (by compression) as an air parcel descends. Air mass A large body of air that has similar temperature, pressure and moisture properties.
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EST FACTS Cooling towers may either use the evaporation of water to remove process heat and cool the working fluid to near the wet-bulb air temperature or, in the case of closed circuit dry cooling towers, rely solely on air to cool the working fluid to near the dry-bulb air temperature.
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Cooling, chilling, cold stabilisation Cooling is a process step in many food production processes. Chilling for food preservation is widely applied for a lot of perishable foods. The main application of cold stabilisation in the food industry is in the wine and spirit sector.
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hydronic Definition of hydronic. : of, relating to, or being a system of heating or cooling that involves transfer of heat by a circulating fluid (such as water or vapor) in a closed system of pipes.
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- chilling (comparative more chilling, superlative most chilling) 1  Becoming cold. 2  Causing cold. 3  Causing mild fear.
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- reduces the thermal efficiency. So, the object of cooling system is to keep the engine running at its most efficient operating temperature. It is to be noted that the engine is quite inefficient when it is cold and hence the cooling system is designed in such a way that it prevents cooling when the engine is warming up and till it
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What is a cooling tower? What is a cooling tower? A cooling tower is designed to remove heat from a building or facility by spraying water down through the tower to exchange heat into the inside of the building. Air comes in from the sides of the tower and passes through the falling water. As the air passes through the water, heat is exchanged and some of the water evaporates. This heat and evaporated water flow out the top of the tower in the form of a fine cloud-like mist.
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global warming global warming definition. The term attached to the notion that the Earth's temperature is increasing due to the greenhouse effect. Note: Whether global warming is actually happening is a subject of scientific debate.
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convection Definition of convection. 1  1 : the action or process of conveying. 2  2a : movement in a gas or liquid in which the warmer parts move up and the cooler parts move down convection currentsb : the transfer of heat by convection foods cooked by convection — compare conduction, radiation.
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cooling Subnormal body temperature may be induced to reduce metabolic function before some kinds of surgery. Very high fevers of any origin may be treated in part by reduction of the fever with cooling techniques. See also alcohol bath, hypothermia, hypothermia blanket.
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- Search also in: Web News Encyclopedia Images. thermal (thermals plural) 1 adj Thermal means relating to or caused by heat or by changes in temperature. ADJ n ...thermal power stations. 2 adj Thermal streams or baths contain water which is naturally hot or warm. ADJ n Volcanic activity has created thermal springs and boiling mud pools.
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- An operation or combination of operations involving the heating and cooling of a metal or an alloy in the solid state for the purpose of obtaining certain desirable conditions or properties. Heating and cooling for the sole purpose of mechanical working are excluded from the meaning of the definition.
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Law of Conservation of Energy Convection definition, Physics. the transfer of heat by the circulation or movement of the heated parts of a liquid or gas. See more.
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cooler Definition of cooler for English Language Learners. : 1  a container for keeping food or drinks cool. : 2  a cold drink that usually contains alcohol. 3  the cooler : a prison or jail.
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refrigeration Definition. The process of keeping an item below room temperature by storing the item in a system or substance designed to cool or freeze. The most common form of refrigeration is provided by systems (i.e. refrigerators) that use a refrigerant chemical to remove heat from items stored inside the system.
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What Is A Cooling Tower? As the water flows through the cooling tower, it is exposed to air, which is being pulled through the tower by the electric motor-driven fan. When the water and air meet, a small amount of water is evaporated, creating a cooling action.s this occurs, a small volume of water is evaporated, reducing the temperature of the water being circulated through the tower. Water, which has been heated by an industrial process or in an air-conditioning condenser, is pumped to the cooling tower through pipes.
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Refrigeration Commercial refrigeration. Refrigeration is a process of removing heat from a low-temperature reservoir and transferring it to a high-temperature reservoir. The work of heat transfer is traditionally driven by mechanical means, but can also be driven by heat, magnetism, electricity, laser, or other means. Refrigeration has many applications, including, but not limited to: household refrigerators, industrial freezers, cryogenics, and air conditioning. Heat pumps may use the heat output of the refrigeration process, and als
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Evaporative Cooling Introduction The Science of Evaporative Cooling. Evaporative cooling is based on a physical phenomenon in which evaporation of a liquid (usually water) into surrounding air cools an object or a liquid in contact with it. As the liquid turns to a gas, the phase change absorbs heat. Technically, this is called the “latent heat of evaporation”.
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Evaporative cooler Evaporative coolers lower the temperature of air using the principle of evaporative cooling, unlike typical air conditioning systems which use vapor-compression refrigeration or absorption refrigerator. Evaporative cooling is the addition of water vapor into air, which causes a lowering of the temperature of the air.