В настоящей рубрике публикуются аннотации к статьям «Вестника Международной академии холода» ("Вестника МАХ") - международного ежеквартального научно-теоретического журнала, являющегося печатным органом общественной организации - «Международной академии холода» ("International Academy of Refrigeration").
Вестник МАХ издается с 1998 года.
Главный редактор журнала: Бараненко Александр Владимирович, д-р техн. наук, профессор.
Тематика журнала: "Исследования и разработки по всем направлениям холодильной и криогенной техники, кондиционированию воздуха и проблемам экологии".
The international scientific-theoretical quarterly magazine about scientific and technical developments on all directions of refrigeration, cryogenic engineering and technology, air conditioning and problems of ecology.
«Vestnik of International Academy of Refrigeration» – published since 1998.
1. Повышение энергетической эффективности экологически безопасных гелиохолодильных установок / Д-р техн. наук М.Ф. РУДЕНКО, канд. техн. наук Ю.В. ЧИВИЛЕНКО, А.Е. АНТИПОВ
(ФГОУ ВПО "Астраханский государственный технический университет")
Solar power refrigerating plant on solid sorbents can be improved through the intensification of physical-chemical processes or by improvement of design. The introduction of graphite additives into the working substances intensifies thermophysical processes. The developed physical and chemical model of the processes of "dry" absorption-desorption makes it possible to explain the dynamics of variation of thermophysical properties of working substances during formation and decomposition of mono-, dl-, tetra- and octoammoniates. A formula and nomograms for the calculation of geometrical characteristics of flat mirror concentrators are obtained. Solar absorption coatings of solar receiving surface influence the intensification of heat and mass exchange during desorption.
2. Комбинированный рабочий цикл прямоточной детандерной ступени / А.И. ПРИЛУЦКИЙ
(Санкт-Петербургский государственный университет низкотемпературных и пищевых технологий)
The use of combined inlet valve in the straight-flow expander stage with the possibility of the forced opening at the end of the process of return compression is considered. A comparative analysis of the operation of me high pressure expander with usual and combined inlet valves is carried out. In the latter case the right choice of the value of the forced stroke of valve plate is important. The optimum of this value can be easily determined using the proposed and tested by the author program of calculation of the expander stage.
3. Оптимизация способа подбора ветвей термоэлементов по максимальной термодинамической эффективности термопары / Д-р техн. наук Т.А. ИСМАИЛОВ, д-р техн. наук М.Г. ВЕРДИЕВ, канд. техн. наук О.В. ЕВДУЛОВ
(Дагестанский государственный технический университет)
The problems of optimum selection of arms of a thermal element in a thermocouple are considered. A new method of measurement of the relationship ΔT= f(I) is proposed. According to the taken relationships under the conditions of the maximum refrigerating capasity, the optimum values of the currents for the ginen geometrical dimensions of the arms of thermal elements are determined. The optimum selection of arms of types P and N for the thermal elements is carried out by the maximum of the relationships ΔТ = f(I) for both types of the arms, with similar current volumes and with their similar geometrical dimensions, or by means of the corresponding change of geometrical dimensions of the arms of types P or N to ensure equal values of currents in both arms (with real maximum temperature drops).
4. Моделирование термодинамических свойств водоаммиачного раствора для рабочих интервалов параметров абсорбционных водоаммиачных холодильных машин / Д-р техн. наук Л.В. ГАЛИМОВА, И.В. КУЗЬМИН
(Астраханский государственный технический университет)
The possibility of use of absorption water-ammonia refrigeration machines in the energy-saving systems requires the analysis of their performance depending on the alteration of operational parameters. To carry out quick and sufficiently reliable thermal calculation with the use of a computer, the relationships are proposed, connecting the necessary values of thermodynamical parameters of the water-ammonia solution in a large range of operating parameters change A program of calculation has been developed, and testing of its parameters has been carried out.
5. База данных и обобщенные зависимости для разности термодинамических свойств фреонов и их смесей / Д-р техн. наук Б.А. АРУТЮНОВ, А.Б. АРУТЮНОВ, И.Г. ГОЦИРИДЗЕ, И.Ю. СКВОРЦОВ
(Московская государственная академия тонкой химической технологии им. М.Ю. Ломоносова)
The method of determination of entropy and enthalpy of freons and their blends is based on the obtained (by computer processing) data of analytical dependence of the relationship of entropies difference on the saturation lino in a special point. The spread of experimental and calculated values doesn't exceed 4 %.
6. Теплоемкость и теплопроводность стеклоэпоксидов при криогенных температурах / А.Б. КРУГЛОВ, В.С. ХАРИТОНОВ
(Московский инженерно-физический институт (государственный университет)
In this paper the results of an experimental Investigation of specific heat and thermal conductivity of glass-fiber-reinforced epoxy composites (GFBEC) in the temperature range of 5 to 300 К are presented. On the basis of these results the thermal conductivity and specific heat cE of E-glass fibers and boundary resistance Rc at an Interface between glass and epoxy are calculated. The formulas for calculations of thermal conductivity and specific heat of QFREC are proposed.
7. Разработка технологии быстрозамороженного готового мясопродукта, обогащенного функциональными ингредиентами / З.М. НАМСАРАЕВА, д-р техн. наук Т.Ф. ЧИРКИНА
A new kind of a ready-made quick frozen meat product is worked out on the base of tenderized horse-flesh meat. The product contains sauce, enriched by functional ingredients, comprised in the buckthorn juice, cottage whey, carrot and pumpkin.
8. Исследование технологических и теплофизических условий замораживания крупных блочных сыров / Д-р техн. наук О.Н. БУЯНОВ, канд. техн. наук И.В. БУЯНОВА
(Кемеровский технологический институт пищевой промышленности)
Are investigated technological and thermophysical of a condition of freezing of cheeses in blocks with use of a freezing plate. The data on change of a temperature field, density of a thermal flow, average speed of freezing and factor heat transfers of cheeses received. The laws of course of process of freezing of water in a product are described and the technological rules of organization of process of freezing is established.
9. Технология мясных изделий эмульсионного типа с заданнымим фунуциональными свойствами / Д-р техн. наук В.С. КОЛОДЯЗНАЯ, Д.А. БАРАНЕНКО
(Санкт-Петербургский государственный университет низкотемпературных и пищевых технологий)
A technology of emulsion type products with high functional-technological properties has been developed. The ratio of fatty acids and amino acid composition vitamins and microelements is anticipated.
10. О переработке отходов птицеперерабатывающей промышленности / Д-р техн. наук В.Е. КУЦАКОВА, А.С. МОСКВИЧЕВ, Е.В. ЧЕРНЫШЕВ, К.А. ЕЛЫГИНА
(Санкт-Петербургский государственный университет низкотемпературных и пищевых технологий)
То regulation 2000/766/EG the usage of meat and bone meal is prohibited nowadays. An alternative method of multistage hydrolysis of poultry-processing wastes has been considered. The hydrolysis regimes, which include two stages of treatment, i.e. alkaline hydrolysis-prehydrolysis and acid hydrolysis-complete one, are given. In the article the principle advantages of the technology proposed are given and the kinetic equations of hydrolysis are presented.
