Journals / Gıda / 2005 / Cilt: 30 - Sayı: 3

Determination of the Thermal Conductivity of Some Ice Cream Mixes as a Function of Temperature (Turkish with English Abstract)

Bazı Dondurma Karışımlarının Isıl İletkenliklerinin Sıcaklıkla Değişiminin Belirlenmesi

Journal
Gıda
Pages
—
Publication Date
2005-06-01
DOI
—
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

It was determined statistically that thermal conductivity values depend on composition and temperature of the mixes.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:In this study, thermal conductivity of Maras ice cream and standard ice cream mixes produced in continuous system in a modern ice cream plant were measured at temperatures ranging from –30°C to 30 °C using the transient hot-wire probe method.
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Key Findings & Data:The system was calibrated by using a gel made with pure water and 0.3% agar.
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Conclusion & Impact:It was determined statistically that thermal conductivity values depend on composition and temperature of the mixes.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Isıl özellikler · ısıl iletkenlik · dondurma

Abstract

In this study, thermal conductivity of Maras ice cream and standard ice cream mixes produced in continuous system in a modern ice cream plant were measured at temperatures ranging from –30°C to 30 °C using the transient hot-wire probe method. The system was calibrated by using a gel made with pure water and 0.3% agar. The effects of various experimental conditions were also considered, to optimize the line heat source technique used for the measurements. The results have shown that the thermal conductivity values of frozen samples were greater than the ones found for unfrozen samples. Thermal conductivity values are obtained at 25°C 0.494 W/m.K, at –30 °C 1.051 W/m.K for Maras ice cream mix and at 25 °C 0.452 W/m.K, at –30 °C 0.993 W/m.K for standard ice cream mix. It was determined statistically that thermal conductivity values depend on composition and temperature of the mixes.

Özet

Bu çalışmada geleneksel ürünlerimizden olan ve modern bir işletmede sürekli sistemde üretilen Maraş usulü ve kaymaklı dondurma karışımlarının -30 °C ile +30°C sıcaklık aralığındaki ısıl iletkenlik değerleri çizgisel ısı kaynaklı prob yöntemi kullanılarak deneysel olarak belirlenmiştir. Kalibrasyon materyali olarak % 0.3 agar içeren saf su kullanılmıştır. Optimum ölçüm koşulları; değişik elektriksel akım, işlem süreleri ve örnek boyutları kullanılarak tespit edilmiştir. Örneklerin donmuş durumlarındaki ısıl iletkenlik değerlerinin donmamış durumlarına ait ısıl iletkenlik değerlerinden daha yüksek olduğu belirlenmiştir. Maraş usulü dondurma karışımının ısıl iletkenliği 25 °C’de 0.494 W/m.K, –30 °C’de 1.051 W/m.K; kaymaklı dondurma karışımının ısıl iletkenliği ise 25 °C’de 0.452 W/m.K, –30 °C’de 0.993 W/m.K olarak ölçülmüştür. Örneklerin ısıl iletkenlik değerlerinin bileşim ve sıcaklıkla değişim gösterdiği saptanmıştır.

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Cite This Article

KUMCUOĞLU, S., TAVMAN, Ş., TURGUT, A., ERGİN, B. (2005). Determination of the Thermal Conductivity of Some Ice Cream Mixes as a Function of Temperature (Turkish with English Abstract). Gıda, Cilt: 30 - Sayı: 3. https://ajindex.com/articles/39910

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References (5)

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