noun. Sink definition is - to go to the bottom : submerge. Passive Heat Sinks. The protective case of the device containing the heat-generating component could theoretically function as a heat sink as well. noun. Information and translations of Heat Sink in the most comprehensive dictionary definitions resource on the web. These systems are advantageous as they do not … In this article, we’ll walk you through the basics of heat sinks and heat sink design, including the calculations involved in defining the proper heat sink … Heat sinks are most commonly utilized in active, passive or hybrid configurations. When the heat sink utilizes fan (HSF) it is active heat sink. Active Heat Sinks vs. THIS DEFINITION IS … See more. heart sinks phrase. A device or substance for absorbing excessive or unwanted heat. … Or, if the heat sink is of the same size as the source, but heat … - Passive heat sinks rely on natural convection, meaning the buoyancy of hot air alone causes the airflow generated across the heat sink system. 1. By rearranging the previous equation, the heat-sink resistance can be easily obtained as R T j _ Ta sa = Q – R jc _ Rca In this expression,T j, Q and Rjc areprovided by the … Heat Sink on a Chip This type of heat sink is glued to the top of the chip, typically a CPU chip, which generates considerable heat. In Intel computers, the heatsink is positioned either on top … A thermal reservoir, also thermal energy reservoir or thermal bath, is a thermodynamic system with a heat capacity so large that the temperature of the reservoir does not change when a reasonable amount of heat is added or extracted. You can complete the definition of heat sink given by the English Definition dictionary with other English dictionaries: Wikipedia, Lexilogos, Oxford, Cambridge, Chambers Harrap, Wordreference, Collins Lexibase … What does heart sinks expression mean? Meaning of heat-sink. Types of heat sink Active Heat Sink. Heat sinks consist of fan or cooling device to disperse heat from another object. Heatsinks leverage a thermal conductor to move the heat into fins, which have larger surface areas and thus disperse the heat throughout the computer. heet singk. Heat sink design goals may vary, but in this report, heat sinks synonyms, heat sinks pronunciation, heat sinks translation, English dictionary definition of heat sinks. where, m is the mass flow rate through the heat sink, c is the heat capacity of the fluid, and. Icing problems may appear at different aircraft locations, where the engine and wing are two icing locations that require special attention. It is an effectively infinite pool of thermal energy at a given, constant temperature.Since it can act as a source and sink of heat… Heat sink is defined as an entity to which an amount of energy must be or can be provided. As it can act as a source and sink of heat, it is often also referred to as a heat reservoir or heat bath. However, most heat sinks use fins to increase surface area and create optimal air flow patterns, as shown in the table … A heat sink uses its extended surfaces to increase the surface area in contact … The heat sink has a thermal conductor that carries heat away from the CPU into fins that provide a large surface area for the heat to dissipate throughout the rest of the computer, thus cooling both the heat sink and processor. heatsink: A heatsink is a device that is attached to a microprocessor chip to keep it from overheating by absorbing its heat and dissipating it into the air. Nearly all computers have heat sinks , which help keep the CPU cool and prevent it from overheating. Heat sink definition: a metal plate specially designed to conduct and radiate heat from an electrical component | Meaning, pronunciation, translations and examples Such a set-up is used in order to measure the cooling capacity of heat sinks. In computers, it is attached with a microprocessor chip to absorb heat and sends it to air. Pronunciation /hēt siNGk/ /hit sɪŋk/ See synonyms for heat sink. heat sink - WordReference English dictionary, questions, discussion and forums. "We didn't start with any pre-conceived notion … But sometimes the heat sink itself can become too hot. Therefore, they are an important player in the budget of heating and cooling. Heat sink definition, any environment or medium that absorbs heat. The fluid medium is frequently air, but can also be water or in the case of heat exchangers, refrigerants and oil. The global warming caused by the Greenhouse Effect is one of the biggest challenges of mankind. 2. Heat sink is an electronic component or a device of an electronic circuit which disperses heat from other components (mainly from the power transistors) of a circuit into the surrounding medium and cools them for improving their performance, reliability and also avoids the premature failure of the components. Definition of Heat Sink in the Definitions.net dictionary. Definition of heat sink in English: heat sink. A heat sink is a mechanical object that transfers heat generated within a solid material to a fluid medium, such as air or liquid. Heat sink. As mentioned above, but important to stress, the temperature of the reservoir does not change when heat is added or extracted because of the infinite heat capacity. The simplest heat sink could consist of a single piece of thermally conductive metal. ... heat; heat through; heat up; heat wave; heated; heater; Heath Robinson; heather; All Free. A heatsink is a passive heat exchanger that transfers heat. Heat sinks are used on a broad range of electronics, ranging from CPUs to motor drivers. Basic heat sink heat transfer principle. The value of the spreading resistance (R sp) is obtained from [2], Rsp stems from dissimilar contact areas between the source and the sink.That is when the heat sink is larger than the device, as shown in Figure 1. To begin the heat sink selection, the first step is to de-termine the heat-sink thermal resist ante required to satisfy the thermal criteria of the component. Heat sinks are made of metals like copper or aluminum alloy. Passive heat sinks do not use any fans and have no moving parts and are … Most often surrounded by air, Heat Sinks are engineered to maximize its surface area contact with the cooling medium. There are two types of heat sinks, namely the passive heat sink and the active heat sink. This can happen if the CPU is running at full capacity for an extended period of time or if the air surrounding the computer is simply too … Information and translations of heat-sink in the most comprehensive dictionary definitions resource on the web. The heat transfer efficiencies have been measured for a wide range of heat sink configurations, and their ranges are listed in Table 4. These have excellent cooling performance but require periodic maintenance due to the moving parts. Generally, a microprocessor's temperature should not run in excess of 50-55 degrees Celsius while under a full load. Meaning of Heat Sink. Definition. Active heat sinks use cooling fan or blower to cool the heat sink. Definition of heat-sink in the Definitions.net dictionary. Heatsinks leverage a thermal conductor to move the heat into fins, which have larger surface areas and thus disperse the heat throughout the computer. The heatsink is typically a metallic part which can be attached to a device releasing energy in the form of heat, with the aim of dissipating that heat to a surrounding fluid in order to prevent the device overheating. Typically, the fins are oriented in a way to permit a natural convection air draft to flow upward through rectangular U-channels, or ducts, formed by the fins. This tool is designed to calculate junction temperature of an electronic device (typically power devices) given four parameters: the maximum ambient temperature, the device's junction-to-package thermal resistance, the thermal resistance of the heat sink, and the power applied. Heat sinks are devices that are used to enhance heat dissipation from hot surfaces to cooler ambient air. (transitive) To fit with a heat sink. Model Definition The modeled system consists of an aluminum heat sink for cooling of components in electronic circuits mounted inside a channel of rectangular cross section; see Figure 1. The oceans as a heat sink. Definition of heart sinks in the Idioms Dictionary. n. 1. Search heat sink and thousands of other words in English definition and synonym dictionary from Reverso. Definitions by the largest Idiom Dictionary. Heat Sinks are a form of Heat Exchanger that cools a device by spreading heat into a surrounding medium. Heat Sink. Both a heat sink and a radiator require airflow and, therefore, both have fans built in. They also act as heat sinks. A heat sink is an object that transfers thermal energy from a higher temperature to a lower temperature fluid medium. Where, T a is the approach fluid temperature to the device/heat-sink. Their heat sink has a gently sloping "L" shape on one side, and a protruding "d" shape on the other. 1971, Joseph Stewart Bravman, Thermal effects in the operation of GaAs transferred electron microwave oscillators, page 138: It was necessary to heatsink the device through the center conductor of the coax thereby producing a total thermal resistance from … The "d" shape causes airflow to back up and recirculate, spending more time in the heat sink, and removing more heat, before being channeled out by the "L" shape. HSF: Stands for "Heat Sink and Fan." T sa is the average temperature difference between the heat sink and the ambient air. Different to other planets in the solar system, the Earth is covered by large oceans that make up for 2/3 of the total surface area. ‘Every computer contains a device known as a heat sink.’ ‘The expanding universe is quite an effective heat sink.’ ‘Judging by the small size of the heat sink and fan on the processor, this is a fairly cool running processor.’ How to use sink in a sentence. Heart sinks - Idioms by The Free Dictionary. Define heat sinks. How does the Heat Sink Calculator Work? And in the context of a thermodynamic cycle, a heat source and a heat sink. A lower temperature fluid medium is frequently air, but can also be or. With the cooling medium configurations, and their ranges are listed in Table 4 to fit with microprocessor. In order to measure the cooling medium definition and synonym dictionary from heat sink definition..., English dictionary definition of heat sinks translation, English dictionary definition heat... 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