Modelling of the Temperature Difference Sensors to Control the Temperature Distribution in Processor Heat Sink
This paper has three main purposes. The first is to investigate whether it is appropriate to use a planar thick-film thermoelectric sensor to monitor the temperature difference in a processor heat sink. The second is to compare the efficiency of two heat sink models. The third is to compare two kind...
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| Format: | Article |
| Language: | English |
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MDPI AG
2019-08-01
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| Series: | Micromachines |
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| Online Access: | https://www.mdpi.com/2072-666X/10/9/556 |
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| author | Piotr Marek Markowski Mirosław Gierczak Andrzej Dziedzic |
| author_facet | Piotr Marek Markowski Mirosław Gierczak Andrzej Dziedzic |
| author_sort | Piotr Marek Markowski |
| collection | DOAJ |
| description | This paper has three main purposes. The first is to investigate whether it is appropriate to use a planar thick-film thermoelectric sensor to monitor the temperature difference in a processor heat sink. The second is to compare the efficiency of two heat sink models. The third is to compare two kinds of sensors, differing in length. The model of the CPU heat sink sensor system was designed for numerical simulations. The relations between the CPU, heat sink, and the thermoelectric sensor were modelled because they are important for increasing the efficiency of fast processors without interfering with their internal structure. The heat sink was mounted on the top of the thermal model of a CPU (9.6 W). The plate fin and pin fin heat sinks were investigated. Two planar thermoelectric sensors were mounted parallel to the heat sink fins. These sensors monitored changes in the temperature difference between the CPU and the upper surface of the heat sink. The system was equipped with a cooling fan. Switching on the fan changed the thermal conditions (free or forced convection). The simulation results showed the temperature gradient appearing along the sensor for different heat sinks and under different thermal conditions. Comparison of the results obtained in the simulations of the CPU heat sink sensor systems proves that changes in the cooling conditions can cause a strong, step change in the response of the thermoelectric sensor. The results suggest that usage of the pin fin heat sink model is a better solution for free convection conditions. In the case of strong forced convection the heat sink type ceases to be significant. |
| first_indexed | 2024-12-22T03:40:41Z |
| format | Article |
| id | doaj.art-2a5014dc1f084f2eaaaf2a857cd2ce71 |
| institution | Directory Open Access Journal |
| issn | 2072-666X |
| language | English |
| last_indexed | 2024-12-22T03:40:41Z |
| publishDate | 2019-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Micromachines |
| spelling | doaj.art-2a5014dc1f084f2eaaaf2a857cd2ce712022-12-21T18:40:16ZengMDPI AGMicromachines2072-666X2019-08-0110955610.3390/mi10090556mi10090556Modelling of the Temperature Difference Sensors to Control the Temperature Distribution in Processor Heat SinkPiotr Marek Markowski0Mirosław Gierczak1Andrzej Dziedzic2Faculty of Microsystem Electronics and Photonics, Wrocław University of Science and Technology, Janiszewskiego 11/17, 50-372 Wrocław, PolandFaculty of Microsystem Electronics and Photonics, Wrocław University of Science and Technology, Janiszewskiego 11/17, 50-372 Wrocław, PolandFaculty of Microsystem Electronics and Photonics, Wrocław University of Science and Technology, Janiszewskiego 11/17, 50-372 Wrocław, PolandThis paper has three main purposes. The first is to investigate whether it is appropriate to use a planar thick-film thermoelectric sensor to monitor the temperature difference in a processor heat sink. The second is to compare the efficiency of two heat sink models. The third is to compare two kinds of sensors, differing in length. The model of the CPU heat sink sensor system was designed for numerical simulations. The relations between the CPU, heat sink, and the thermoelectric sensor were modelled because they are important for increasing the efficiency of fast processors without interfering with their internal structure. The heat sink was mounted on the top of the thermal model of a CPU (9.6 W). The plate fin and pin fin heat sinks were investigated. Two planar thermoelectric sensors were mounted parallel to the heat sink fins. These sensors monitored changes in the temperature difference between the CPU and the upper surface of the heat sink. The system was equipped with a cooling fan. Switching on the fan changed the thermal conditions (free or forced convection). The simulation results showed the temperature gradient appearing along the sensor for different heat sinks and under different thermal conditions. Comparison of the results obtained in the simulations of the CPU heat sink sensor systems proves that changes in the cooling conditions can cause a strong, step change in the response of the thermoelectric sensor. The results suggest that usage of the pin fin heat sink model is a better solution for free convection conditions. In the case of strong forced convection the heat sink type ceases to be significant.https://www.mdpi.com/2072-666X/10/9/556thick filmthermoelectric sensorthermoelectricityCPUnumerical modelling |
| spellingShingle | Piotr Marek Markowski Mirosław Gierczak Andrzej Dziedzic Modelling of the Temperature Difference Sensors to Control the Temperature Distribution in Processor Heat Sink Micromachines thick film thermoelectric sensor thermoelectricity CPU numerical modelling |
| title | Modelling of the Temperature Difference Sensors to Control the Temperature Distribution in Processor Heat Sink |
| title_full | Modelling of the Temperature Difference Sensors to Control the Temperature Distribution in Processor Heat Sink |
| title_fullStr | Modelling of the Temperature Difference Sensors to Control the Temperature Distribution in Processor Heat Sink |
| title_full_unstemmed | Modelling of the Temperature Difference Sensors to Control the Temperature Distribution in Processor Heat Sink |
| title_short | Modelling of the Temperature Difference Sensors to Control the Temperature Distribution in Processor Heat Sink |
| title_sort | modelling of the temperature difference sensors to control the temperature distribution in processor heat sink |
| topic | thick film thermoelectric sensor thermoelectricity CPU numerical modelling |
| url | https://www.mdpi.com/2072-666X/10/9/556 |
| work_keys_str_mv | AT piotrmarekmarkowski modellingofthetemperaturedifferencesensorstocontrolthetemperaturedistributioninprocessorheatsink AT mirosławgierczak modellingofthetemperaturedifferencesensorstocontrolthetemperaturedistributioninprocessorheatsink AT andrzejdziedzic modellingofthetemperaturedifferencesensorstocontrolthetemperaturedistributioninprocessorheatsink |