en.wiktionary.2016 ... Also taught is an interface plate adapted to cool multiple electronic components using a single external heat sink. Passive Heat Sink. 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… For yet another, it is not 3/4 covered by a massive liquid heat-sink that convectively carries heat across its surface. The heat transfer efficiencies have been measured for a wide range of heat sink configurations, and their ranges are listed in Table 4. translation and definition "heat sinks", Dictionary English-English online. When the heat sink utilizes fan (HSF) it is active heat sink. All modern CPUs require a heat sink. Basic heat sink heat transfer principle. Find out inside PCMag's comprehensive tech and computer-related encyclopedia. heat sink definition: 1. a substance or object that absorbs heat: 2. a device in a computer, mobile phone, etc. It's amazingly detailed -- separate gingerbread RAM, heat-sink, etc, all lovingly assembled on a gingerbreadboard. Of the three resistances, we can really only control the last two because the component’s thermal resistance is defined by the manufacturer. Actually, What exactly is a heat? Video cards therefore need to employ heat sinks, which consist of metal strips to distribute the heat evenly and dissipate the heat into the surrounding air. The mentioned heat sink is part of an experimental setup presented in Fig. Active heat sinks are used in liquid cooling system. CISC CPUs are usually built into a system which has a heat sink. 1. 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. #1 – Extruded Heat Sinks. Internet Glossary. Disconnect the fan that…. Internet Dictionaries. Nearly all computers have heat sinks , which help keep the CPU cool and prevent it from overheating. Figure 2: Axial fan-heat sinks systems for portable computer. Types of heat sink Active Heat Sink. where, m is the mass flow rate through the heat sink, c is the heat capacity of the fluid, and. en.wiktionary.org. Both a heat sink and a radiator require airflow and, therefore, both have fans built in. Plural form of heat sink. 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. Selecting the Heat Sink and Compound. A heat sink is a metallic device that sits directly on the CPU, drawing heat away from the chip into its cooler, aluminum, fin-like structure. The correct definition of heat says that it is the total kinetic energy of all atoms or molecules of a substance. CPU fans often work together with heat sinks to keep a computer cool. A heat sink is an object that transfers thermal energy from a higher temperature to a lower temperature fluid medium. and fan to cool them down. Heat sink Definition from Computer & Internet Dictionaries & Glossaries. Boing Boing: December 11, 2005 - … heat sink - a metal conductor specially designed to conduct (and radiate) heat. In most of computer processor, a fan is attached just above the heat sink. Figure 1: Micro blower-heat sink system for portable computer. conductor - a device designed to transmit electricity, heat, etc. The main advantages of natural convection are high HSF: Stands for "Heat Sink and Fan." When a computer is in use, electrical activity within the CPU and chipset generates considerable heat, which if not dissipated, will damage or even melt the chips, making them inoperable. Heat sink definition is - a substance or device that absorbs or dissipates especially unwanted heat (as from a process or an electronic device). Let’s take a look at 6 common heat sink types. After passing the heat sink, the liquid was cooled down in the external heat exchanger (4) and collected in the reservoir (5). For this computer, the duct system can be removed by pressing in on the clips and pulling the duct away from the processor. It can be in the form of a paste or jelly or a simplealuminum structure which is attached to the heat source. Search heat sink and thousands of other words in English definition and synonym dictionary from Reverso. A component designed to lower the temperature of an electronic device by dissipating heat into the surrounding air. Heat sink definition, any environment or medium that absorbs heat. The metal heat sink ensures good heat dispersal and allows a low hot-spot temperature. In doing so, the There are a number of different ways to make heat sinks. See more. T sa is the average temperature difference between the heat sink and the ambient air. This heat needs to be removed from the component Heat Sink. This utilizes power for cooling process. sink - (technology) a process that acts to absorb or remove energy or a substance from a system; "the ocean is a sink for carbon dioxide" A CPU fan works in conjunction with a heat sink to prevent this. For the cooling purpose,it incorporates a fan or cooling device. 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. Some also require a fan. n. 1. The heat sink for this computer's processor is not visible until this duct is removed from the computer. Some also require a fan. A component designed to lower the temperature of an electronic device by dissipating heat into the surrounding air. Aluminum-cased wirewound resistors are designed to be attached to a heat sink to dissipate the heat. Thermal paste (also called thermal compound, thermal grease, thermal interface material (TIM), thermal gel, heat paste, heat sink compound, heat sink paste or CPU grease) is a thermally conductive (but usually electrically insulating) chemical compound, which is commonly used as an interface between heat sinks and heat sources such as high-power semiconductor devices. The main objective of this paper is to investigate the effects on thermal performance under axial fan and micro blower airflow for different gap/length ratio heat sinks. heat sink synonyms, heat sink pronunciation, heat sink translation, English dictionary definition of heat sink. 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