Agrarian
Bulletin
of the Urals

Russian Journal of Agricultural Research

The publication is registered by the Ministry of the Russian Federation
for Affairs of the Press, Television and Radio Broadcasting and Mass Communication Media.
Registration certificate: PI number 77-12831 on May 31, 2002
Subscription index in catalog «Russian Press» - 16356
ISSN 1997 - 4868 (Print)

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Journal is included in the list of VAK (from 25.09.2017), No. 291

ISSN 2307-0005 (Online)
Key title: Agrarnyj vestnik Urala (Online)
Abbreviated key title: Agrar. vestn. Urala (Online)

Аграрный вестник Урала № 11 (165) 2017

Технические науки

Шихалёв С.В. кандидат технических наук, старший преподаватель, Уральский экономический университет

Лазарев В. А. аспирант Уральский государственный аграрный университет

Пищиков Г. Б. профессор доктор технических наук Уральский государственный аграрный университет

Решетников И. Ф. кандидат технических наук, доцент Уральский государственный экономический университет

УДК:641.542.1

OPTIMIZATION OF THE CONSTRUCTION OF FOOD COOKING APPARATUS

 In the article modern approaches are considered in thedesign and development of rational designs for cookers with a jacket, whichprovide for improved energy efficiency, metal and material consumption withobservance of technological and operational characteristics. A new method forcalculating the optimal forms of the heat transfer surface of the cookingvessels of apparatus is presented on the basis of the method for studying thefunction of several variables on an extremum. Studies were carried out for thesix most common forms of working capacities of cookers with a jacket of thefood industry and public catering: cylindrical tanks with a hemispherical andflat bottom, rectangular, trough-shaped and a capacity in the form of apolesphere. The capacity of all cooking vessels was assumed to be the same. Theresults of the calculation are tabulated in the form of geometric parameters,for which the surface of the vessel is minimal. A detailed example of amathematical analysis of the geometric parameters of a vessel made in the formof a horizontal half cylinder with a vertical rectangular shell is given. It isshown that the smallest surface has a vessel with a hemispherical bottom,transforming into a cylindrical shell, the height of which is half the diameterof the hemisphere. With the same capacity, the surface area of the cookingvessel of a cylindrical vessel with a flat bottom and a trough shape is higherby 6.3 %, and 17.2 %, respectively.


Keywords:

food cooking apparatus, metal consumption, surface area, energy efficiency, functional dependence, shirt, geometric parameters.


References:

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