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Saturated vapor pressure of hydrofluoroolefins 氢氟烯烃的饱和蒸气压
Pub Date : 1900-01-01 DOI: 10.17586/1606-4313-2022-21-4-76-83
S. Rykov, I. Kudryavtseva, V. Rykov, D. V. Konjaev
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引用次数: 0
The use of buttermilk in fermented milk ice cream technology 酪乳在发酵乳冰淇淋中的应用技术
Pub Date : 1900-01-01 DOI: 10.17586/1606-4313-2020-19-1-60-66
E. Melnikova, E. Stanislavskaya, V. Didenko, K. U. Baranova
The full and rational use of by-products of production is one of the important tasks facing the dairy industry in Russia. The aim of the work was to develop buttermilk based fermented milk ice cream. The objects of study were buttermilk obtained from the production of sweet cream butter, fermented buttermilk, and sour milk based on it. The composition and quality indicators of the objects of study were determined by standard methods. To obtain a fermented base for ice cream, buttermilk was fermented with pure cultures of Streptococcus thermophilus and Lactobacillus delbrueckii subsp. bulgaricus. Taking into account the quality of the sour milk clot and the dynamics of acid formation, the Profiline YO 22.11 R2 Golden Line starter culture was chosen to obtain fermented buttermilk. The proportion of fermented buttermilk in the ice cream recipe ranged from 30 to 45 %. An increase in the amount of fermented base increased the overrun of ice cream and its resistance to melting. The results of the studies made it possible to develop a fermented milk ice cream formulation involving the use of 40 % fermented buttermilk. The technology for producing sour-milk ice cream consists of a standard sequence of technological operations and is supplemented by the stages of producing fermented buttermilk. The implementation of an improved scheme for the production of sour milk ice cream will increase the share of the use of a by-product of the dairy industry.
充分、合理地利用生产副产品是俄罗斯乳业面临的重要任务之一。这项工作的目的是开发以酪乳为基础的发酵牛奶冰淇淋。研究对象为甜奶油黄油生产过程中获得的酪乳、发酵酪乳和以其为基础的酸奶。采用标准方法测定研究对象的组成和质量指标。为了获得冰淇淋的发酵底物,用嗜热链球菌和德氏乳杆菌亚种的纯培养物发酵酪乳。发酵剂。保加利亚考虑到酸乳凝块的质量和酸形成的动态,选择Profiline YO 22.11 R2金线发酵剂获得发酵酪乳。发酵酪乳在冰淇淋配方中的比例从30%到45%不等。发酵碱用量的增加增加了冰淇淋的溢出量,提高了冰淇淋的抗融化能力。这些研究的结果使得开发一种含有40%发酵酪乳的发酵乳冰淇淋配方成为可能。生产酸乳冰淇淋的工艺包括一系列标准的工艺操作,并辅以生产发酵酪乳的各个阶段。实施一项改进的酸奶冰淇淋生产方案将增加乳制品工业副产品的使用份额。
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引用次数: 0
Mechanical recuperative drives for stepping movements based on pneumatic cylinders with return springs 基于带返回弹簧的气缸的步进运动的机械回收驱动器
Pub Date : 1900-01-01 DOI: 10.17586/1606-4313-2019-18-2-22-28
M. V. Zhavner, Yang Chuanchao, Zhao Wen
Исследованы мехатронные пружинные приводы с рекуперацией энергии на базе пневматических цилиндров с возвратными пружинами для шаговых перемещений. В пищевой и фармацевтической промышленности мехатронные пружинные приводы применяются в конвейерных линиях и поворотных столах фасовочно-упаковочного оборудования. Исследованы нелинейные пружинные аккумуляторы с выходным поворотным звеном. Построены математические модели пружинного аккумулятора с предварительным натяжением пружины. Проведен сравнительный анализ пружинных аккумуляторов с выходным поворотным звеном с предварительным натяжением пружины с аккумуляторами без предварительного натяжения. Показано, что увеличение предварительного натяжение приводит к увеличению быстродействия при незначительном увеличении размеров. Кроме того, установлено, что увеличение начальной длины пневматического цилиндра с возвратной пружиной также приводит к увеличению быстродействия. Определены максимальные значения моментов инерции поворотных столов, для каждого типоразмера стандартного пневматического цилиндра с возвратной пружиной, которые могут быть перемещены такими мехатронными приводами при заданном времени поворота в пределах до одной секунды. Разработан мехатронный пружинный привод для поворотных столов фасовочно-упаковочного автомата, с использованием двух пневматических цилиндров, один из которых с возвратной пружиной. Второй цилиндр обеспечивает выход поворотного звена из положения неустойчивого положения, в котором находится система во время технологического выстоя. Даны зависимости для определения диссипативных потерь в элементах пружинного аккумулятора, суммарные значения которых определяют затраты энергии двигателя для компенсации диссипативных потерь. Затраты энергии в рассмотренных приводах в несколько раз меньше затрат энергии в приводах другого типа. Ключевые слова: пружинный привод, диссипативные потери, рекуперация энергии, пневматические цилиндры с возвратными пружинами.
研究的是机电弹簧驱动系统,它的动力再生是基于气动缸,气动弹簧是用于步进的。在食品和制药行业,机械弹簧驱动装置被应用于传送带和包装设备的旋转桌子。研究了具有回转回路输出的非线性弹簧电池。建立了一个数学模型的弹簧蓄电池与预应力弹簧。对弹簧电池进行了比较,输出回转环具有前置张力,而不是预设张力。初步张力的增加表明,如果尺寸稍有增加,速度会增加。此外,人们还发现,随着弹簧弹簧的增加,气缸最初长度的增加也会增加速度。转盘惯性矩的最大值是每个标准弹簧大小的标准气缸的最大值,可以在指定的旋转时间内由这些机械驱动移动。他们开发了一种机械弹簧驱动装置,用于旋转的豆袋自动转盘,使用两个气缸,其中一个有返回弹簧。第二个圆柱体提供了一个扭转环节,以摆脱系统在技术停滞期间所处的不稳定状态。这些依赖是为了确定弹簧电池电池中的异见损耗,它们的总值决定了发动机的能量成本来补偿异见损耗。考虑驱动中的能源成本是另一种驱动的能源成本的几倍。关键字:弹簧驱动,异见损失,能量回收,气动缸与回转弹簧。
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引用次数: 1
Obtaining and using smoked composition based on the extracts of Fur-cellaria Lumbricalis red seaweed 以红海草提取物为基础的烟熏合成物的制备与应用
Pub Date : 1900-01-01 DOI: 10.17586/1606-4313-2022-21-1-53-60
A. Sushina, O. Mezenova
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引用次数: 0
Selection of an alternative cryoagent to cover the thermal load in the WBC systems 选择一种替代的低温剂来覆盖WBC系统的热负荷
Pub Date : 1900-01-01 DOI: 10.17586/1606-4313-2022-21-1-76-82
A. Baranov, A. Vasilenok, Е.V. Sokolova, S.D. Chubova, A.M. Ziyavidinov
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引用次数: 5
Development of complex acid and milk drinks for sports food. Part 2 运动食品用复合酸、乳饮料的研制。第2部分
Pub Date : 1900-01-01 DOI: 10.17586/1606-4313-2019-18-3-59-66
L. Zabodalova, E. Suchkova, D. A. Petrov, A. Kritchenkov
Целью работы явилось научное обоснование и разработка состава специализированных кисломолочных напитков для спортсменов. Интерес к продуктам питания для спортсменов неуклонно растет и требуется создание комплексных продуктов, обеспечивающих организм необходимыми нутриентами и биологически активными компонентами, обладающими функциональными свойствами. Рассматривались несколько вариантов состава напитков с ингредиентами, ускоряющими процессы восстановления и повышения работоспособности спортсменов. Подбирались виды заквасочных культур для получения кисломолочной основы, установлены дозы внесения углеводного и минерализующего компонентов и разработаны рецептуры напитков. Определялись органолептические, физико-химические и реологические свойства напитков с применением стандартных и общепринятых методов исследования. Определены сроки годности и условия хранения готового продукта. В процессе исследования были разработаны 2 вида напитков на кисломолочной основе — напиток углеводно-белковый кисломолочный, с использованием мальтодекстрина и кисломолочный напиток с минерализующим компонентом «Регидрон», рассматриваемый в данной работе, для восстановления водно-электролитного равновесия при обезвоживании. Выполнен расчет пищевой и энергетической ценности кисломолочного напитка «Регидрон» и проведена оценка удовлетворения суточной потребности в минеральных веществах и витаминах. Полученные результаты позволяют отнести разработанный напиток к функциональным пищевым продуктам, оказывающим благоприятный эффект на обменные процессы в организме человека. Ключевые слова: специализированные продукты, спортивное питание, мальтодекстрин, водно-солевой баланс, кисломолочный напиток.
这项工作的目的是为运动员提供专门的含氧饮料的科学基础和发展。运动员对食物的兴趣正在稳步增长,需要创造复杂的产品,为身体提供具有功能的营养和生物活性成分。考虑了几种不同的饮料成分,加速了运动员的康复和提高工作能力的过程。培养了各种各样的发酵作物以获取氧气,确定了碳水化合物和矿物成分的剂量,并开发了饮料配方。这些饮料的有机体、物理化学和流变特性是由标准和传统的研究方法决定的。产品的保质期和保质期已经确定。在研究过程中,开发了两种含氧饮料——一种是碳水化合物,一种是碳水化合物,另一种是含有矿物质的“雷迪龙”,用于在脱水时恢复水电解质平衡。regdrona饮料的食物和能源价值已经完成,并对每天所需的矿物质和维生素进行了评估。由此产生的结果将这种饮料归因于功能性食品,对人体的交流产生了有益的影响。关键词:专业产品、运动食品、麦芽酒、盐度平衡、氧气饮料。
{"title":"Development of complex acid and milk drinks for sports food. Part 2","authors":"L. Zabodalova, E. Suchkova, D. A. Petrov, A. Kritchenkov","doi":"10.17586/1606-4313-2019-18-3-59-66","DOIUrl":"https://doi.org/10.17586/1606-4313-2019-18-3-59-66","url":null,"abstract":"Целью работы явилось научное обоснование и разработка состава специализированных кисломолочных напитков для спортсменов. Интерес к продуктам питания для спортсменов неуклонно растет и требуется создание комплексных продуктов, обеспечивающих организм необходимыми нутриентами и биологически активными компонентами, обладающими функциональными свойствами. Рассматривались несколько вариантов состава напитков с ингредиентами, ускоряющими процессы восстановления и повышения работоспособности спортсменов. Подбирались виды заквасочных культур для получения кисломолочной основы, установлены дозы внесения углеводного и минерализующего компонентов и разработаны рецептуры напитков. Определялись органолептические, физико-химические и реологические свойства напитков с применением стандартных и общепринятых методов исследования. Определены сроки годности и условия хранения готового продукта. В процессе исследования были разработаны 2 вида напитков на кисломолочной основе — напиток углеводно-белковый кисломолочный, с использованием мальтодекстрина и кисломолочный напиток с минерализующим компонентом «Регидрон», рассматриваемый в данной работе, для восстановления водно-электролитного равновесия при обезвоживании. Выполнен расчет пищевой и энергетической ценности кисломолочного напитка «Регидрон» и проведена оценка удовлетворения суточной потребности в минеральных веществах и витаминах. Полученные результаты позволяют отнести разработанный напиток к функциональным пищевым продуктам, оказывающим благоприятный эффект на обменные процессы в организме человека. Ключевые слова: специализированные продукты, спортивное питание, мальтодекстрин, водно-солевой баланс, кисломолочный напиток.","PeriodicalId":148431,"journal":{"name":"Journal International Academy of Refrigeration","volume":"83 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128614771","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The effect of intermediate pressure on the operation of a two-stage reciprocating compressor (general purpose compressor) 中间压力对两级往复式压缩机(通用压缩机)运行的影响
Pub Date : 1900-01-01 DOI: 10.17586/1606-4313-2022-21-1-44-52
А.V. Моlоsтоv
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引用次数: 0
Infrared heaters for vacuum drying under the pressure close to the one of the triple point of water 红外加热器用于真空干燥下压力接近水的三相点之一
Pub Date : 1900-01-01 DOI: 10.17586/1606-4313-2021-20-3-15-22
V. Ermolaev, D. Fedorov, A. A. Slavyansky
When using infrared drying lamps, one of the disadvantages is the uneven heating of the product over the surface of the trays. The uneven heating of the surface is due to the geometric properties of the radiation source. The work is devoted to the modernization of the heat supply system in infrared drying plants. The object of the study was a vacuum drying unit with a cylindrical chamber. To carry out the research, a software was used to simulate an optical heat supply system using various reflectors. The behavior of the rays and their distribution over the surface of the tray with the product is analyzed. The efficiency of using a parabolic research on drying black currant berries with the use of a designed reflector and without it has been carried out. During the experiments, the heating time of the product was established at various points in the tray. Without a reflector, the time for heating a berry in the center to a given temperature was 41 minutes in the center and 66 minutes in the periphery. Installing the reflector provides more uniform heating over the entire surface of the tray. The difference between the heating time in the center and at the periphery of the tray was no more than 15 %, while in the absence of a reflector this value was 60 %. In addition, the total warm-up time was reduced by increasing the heat flux density due to the installation of a reflector. We also measured the mass fraction of moisture in dry berries at various points in the tray. The results indicate that without a reflector, there is some difference in the mass fraction of moisture in dry berries along the width of the tray. Installing a reflector significantly reduces this difference.
当使用红外干燥灯时,缺点之一是产品在托盘表面加热不均匀。表面受热不均匀是由于辐射源的几何特性造成的。本工作致力于红外干燥厂供热系统的现代化。研究的对象是一个具有圆柱形腔室的真空干燥装置。为了进行研究,使用软件模拟了一个使用各种反射器的光学供热系统。分析了射线的行为及其在托盘表面与产品的分布。用抛物线法研究了黑加仑子在使用设计的反射器和不使用反射器时的干燥效率。在实验过程中,确定了产品在托盘中各点的加热时间。在没有反射器的情况下,将中心的浆果加热到给定温度的时间是41分钟,外围是66分钟。安装反射器可以在托盘的整个表面提供更均匀的加热。在中心和在托盘的外围加热时间之间的差异不超过15%,而在没有反射器的情况下,这个值是60%。此外,由于安装了反射器,增加了热流密度,从而减少了总预热时间。我们还测量了干浆果在托盘中不同位置的水分质量分数。结果表明,在没有反射器的情况下,沿托盘宽度方向干燥浆果中水分的质量分数存在一定的差异。安装反射器可以显著减少这种差异。
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引用次数: 0
Comparative analysis of methods for calculating heat transfer process in the compressor stages of volumetric operating principle 容积工作原理下压缩机级换热过程计算方法的比较分析
Pub Date : 1900-01-01 DOI: 10.17586/1606-4313-2022-21-4-15-20
I. K. Prilutskiy, J. Molodova, I. Tatarenko
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引用次数: 0
Developing a scheme for the utilization system of condensation heat from refrigerating machines to decrease the dependency of ice arena on municipal systems of heating and hot water supply 开发一种利用制冷机冷凝热系统的方案,以减少冰场对市政供暖和热水供应系统的依赖
Pub Date : 1900-01-01 DOI: 10.17586/1606-4313-2021-20-1-34-39
I. A. Korotkiy, E. Neverov, P. Korotkikh, V. G. Lonshakov, Success
The article presents the results of developing a system for utilization of condensation heat from refrigerating units and air-conditioning systems of ice fields to decrease the dependency of engineering and technical systems of the objects on municipal systems of heating and hot water supply. The proposed solution provides saving of heat and electric energy consumed by both the refrigeration supply system and other systems of the object. When compressed gas overheating is used, an addition heat exchanger is added to the revegetating circuit allowing to utilize up to 20 % of heat released by the unit. As the temperature of refrigerating medium may be above 100 °C in the end of compression process, the environment (water or air) is heated up to 80–90 °C. The technology has been developed for Small Ice Hockey Arena and Ice Hockey Training Rink in Sochi Olympic Park. The IIR conference series on Sustainability and the Cold Chain is recognised as a cutting-edge event on the cold chain which addresses the ever-increasing demand for knowledge-sharing in this essential sector. This prestigious biennial conference attracts international audiences of researchers and industrialists, providing an opportunity to showcase the latest developments in sustainability, retail refrigeration and the cold chain.
本文介绍了开发利用冰原制冷机组和空调系统冷凝热系统的结果,以减少对象的工程技术系统对市政供热和热水供应系统的依赖。提出的解决方案提供了节省的热量和电能消耗的制冷供应系统和其他系统的对象。当使用压缩气体过热时,一个额外的热交换器被添加到再生电路中,允许利用该装置释放的热量的20%。由于在压缩过程结束时,制冷介质的温度可能在100℃以上,因此将环境(水或空气)加热到80-90℃。这项技术是为索契奥林匹克公园的小型冰球馆和冰球训练场开发的。IIR关于可持续发展和冷链的系列会议被认为是冷链领域的前沿活动,它解决了这一重要部门日益增长的知识共享需求。这个久负盛名的两年一次的会议吸引了研究人员和实业家的国际观众,提供了一个展示可持续发展,零售制冷和冷链的最新发展的机会。
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引用次数: 0
期刊
Journal International Academy of Refrigeration
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