Proceedings ArticleDOI
CFD assisted design evaluation and experimental verification of a logic controlled local PCB heater for humidity management in electronics enclosure
Ilja Belov,Mats Lindgren,Jan Ryden,Zahra Alavizadeh,Peter Leisner +4 more
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TLDR
In this paper, a computational fluid dynamics assisted methodology has been developed to determine the best feasible design of the heater, followed by experimental verification of the constructed logic controlled heater in a harsh climatic environment including temperature variation from +33 °C to +40 °C, and relative humidity variation from 54% to 80%.Abstract:
Humidity management of commercial-of-the-shelf electronic components in non-controlled climatic environments can be realized e.g. by introducing a local printed circuit board heater. By choosing appropriate size and location of the heater plate in the vicinity of the critical electronic packages, and utilizing logic control function, it is possible to improve the quality of local humidity management and reduce power consumption of the heater, which is important especially in case of battery driven portable or vehicle mounted devices. A computational fluid dynamics assisted methodology has been developed to determine the best feasible design of the heater, followed by experimental verification of the constructed logic controlled heater. The experiment has been performed in a harsh climatic environment including temperature variation from +33 °C to +40 °C, and relative humidity variation from 54% to 80%. Analysis of the experimental %RH and temperature curves as well as power profile of the heater has confirmed the feasibility of the chosen approach to maintain greater than 9°C difference between the electronics package surface temperature and the local dew point temperature, by applying discrete power pulses with the amplitude less than 6 W.read more
Citations
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Application fo CFD Medelling for Energy Efficient Humidity Management of an Electronics Enclosure in Storage under Severe Climatic conditions
TL;DR: Application fo CFD Medelling for Energy Efficient Humidity Management of an Electronics Enclosure in Storage under Severe Climatic conditions is discussed in this article, where CFD is applied for energy efficient Humidity management of an electronics enclosure in storage under severe climatic conditions.
Proceedings ArticleDOI
Experimental and CFD evaluation of active anti-condensation methods for non-hermetic cabinets
TL;DR: In this paper, experimental evaluation of several active anti-condensation methods for application in non-hermetic electronics enclosures was performed in harsh climatic conditions, including RH = 70% and T = 43 °C.
Book ChapterDOI
Preventive measures for corrosion in electronics: intrinsic and extrinsic strategies
Rajan Ambat,Kamila Piotrowska +1 more
TL;DR: In this article , the authors give an overview on measures that can be adopted for improving corrosion reliability of electronic devices. But, they do not discuss any specific design-related strategy that allows limiting the formation of a water layer on electronic surfaces below a critical level.
Journal ArticleDOI
Virtual Validation of Automotive Electronic Products for Climatic Test Conditions
V. Kumar,Swaminathan Viswanathan +1 more
TL;DR: In this paper , the authors demonstrate simulation methodology to predict the moisture condensation on printed circuit board during combined temperature humidity test and experimentally observed results to build confidence in the simulation approach.
Proceedings ArticleDOI
Numerical Modelling of Humidity Behaviour in the Electronics Housing
TL;DR: In this paper , the authors used the RC model to predict the temperature and humidity behavior based on the heat and mass transfer mechanisms of the electronics housing, and the response of humidity and temperature were simulated and analyzed inside the air-filled volume and the wall material of the housing.
References
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Journal ArticleDOI
5. Statistics for Spatial Data
Mike Rees,N. Cressie +1 more
TL;DR: Cressie et al. as discussed by the authors presented the Statistics for Spatial Data (SDS) for the first time in 1991, and used it for the purpose of statistical analysis of spatial data.
Journal ArticleDOI
Humidity management of outdoor electronic equipment: methods, pitfalls, and recommendations
M. Tencer,J.S. Moss +1 more
TL;DR: In this article, the authors discuss the basics of the three approaches to mitigation of humidity related failures namely; 1) relative humidity control module (RHCM), 2) absolute humidity control (AHCM); 3) use of potting and coating, as well as conditions and limitations of their applicability.
Proceedings ArticleDOI
Application of CFD modelling for energy efficient humidity management of an electronics enclosure in storage under severe climatic conditions
TL;DR: In this paper, a CFD modeling methodology including experimental validation has been developed and applied for investigation of anti-moisture measures in a non-hermetic electronics enclosure containing a number of printed circuit boards, and placed in a severe storage environment.
Application fo CFD Medelling for Energy Efficient Humidity Management of an Electronics Enclosure in Storage under Severe Climatic conditions
TL;DR: Application fo CFD Medelling for Energy Efficient Humidity Management of an Electronics Enclosure in Storage under Severe Climatic conditions is discussed in this article, where CFD is applied for energy efficient Humidity management of an electronics enclosure in storage under severe climatic conditions.
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