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首页> 外文期刊>International Heat Treatment and Surface Engineering >Comparison of Grossmann and lumped heat capacitance methods for assessment of heat transfer characteristics of quench media
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Comparison of Grossmann and lumped heat capacitance methods for assessment of heat transfer characteristics of quench media

机译：Grossmann法和集总热容法在急冷介质传热特性评估中的比较

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The suitability of Grossmann and lumped heat capacitance (LHC) methods for estimation of quench severity of nanofluids, brine solutions and a laboratory detergent based medium was investigated. The study involved the assessment of the effect of section thickness of the probe on heat transfer coefficients for different quench media. Computer aided cooling curve analysis during quenching of type 304 stainless steel probes was carried out. The measured thermal history data were used to estimate heat transfer coefficients by Grossmann and LHC methods. The LHC method based on a 10 mm diameter stainless steel probe was found to be applicable for characterising media having quench severity less than 20 m~(-1). Although Grossmann method is based on the concept of average heat transfer coefficient, it can be used for quench media having varying severity of quenching. Grossmann method is found to be more sensitive to the effect of section thickness on heat transfer.
机译：研究了Grossmann方法和集总热容（LHC）方法用于评估纳米流体，盐水溶液和实验室洗涤剂基介质淬灭强度的适用性。该研究涉及评估探头截面厚度对不同淬火介质传热系数的影响。在304型不锈钢探头淬火期间进行了计算机辅助的冷却曲线分析。通过Grossmann和LHC方法，将测得的热历史数据用于估算传热系数。发现基于10 mm直径不锈钢探头的LHC方法适用于表征淬火强度小于20 m〜（-1）的介质。尽管Grossmann方法基于平均传热系数的概念，但它可用于淬火强度不同的淬火介质。发现格罗斯曼方法对截面厚度对传热的影响更为敏感。

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