INCREASING THE WORKING EFFICIENCY OF SOLAR POWER ABSORPTION REFRIGERATOR UNITS

Objectives.The aim of the study is to develop a cyclic absorption refrigerator unit that implements technology for producing cold from solar radiation energy. Its distinctive feature comprises a highly developed solar receiving unit, consisting of two parallel-connected absorber generators whose rea...

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Main Authors: M. F. Rudenko, Yu. V. Shipulina, M. Sh. Karimov, A. M. Rudenko
Format: Article
Language:Russian
Published: Daghestan State Technical University 2020-01-01
Series:Vestnik Dagestanskogo Gosudarstvennogo Tehničeskogo Universiteta: Tehničeskie Nauki
Subjects:
Online Access:https://vestnik.dgtu.ru/jour/article/view/711
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spelling doaj-627db2461dcc444aac605d0904181eaf2021-07-28T20:54:37ZrusDaghestan State Technical UniversityVestnik Dagestanskogo Gosudarstvennogo Tehničeskogo Universiteta: Tehničeskie Nauki 2073-61852542-095X2020-01-01464324110.21822/2073-6185-2019-46-4-32-41540INCREASING THE WORKING EFFICIENCY OF SOLAR POWER ABSORPTION REFRIGERATOR UNITSM. F. Rudenko0Yu. V. Shipulina1M. Sh. Karimov2A. M. Rudenko3Astrakhan State Technical UniversityAstrakhan State Technical UniversityKh. Dosmukhamedov Atyrau State UniversityAstrakhan State Technical UniversityObjectives.The aim of the study is to develop a cyclic absorption refrigerator unit that implements technology for producing cold from solar radiation energy. Its distinctive feature comprises a highly developed solar receiving unit, consisting of two parallel-connected absorber generators whose reactors are installed in individual heat-insulated “hot box” cabinets.Method. The geometric characteristics of the absorber generator are based on the calculations of the optical and heat energy efficiency of the device models.Results. The physicochemical characteristics of activated carbons (AC) of various production are studied. The absorption capacity of the following working pairs is determined: AC-ammonia, AC-methylamine, AC-ethylamine. The calculated coefficients for the Dubinin-Radushkevich structural equations are obtained. An experimental solar energy refrigerator unit is tested using a working pair of AC-ammonia in an open test area. The operability of the upgraded device is proven. Exergetic coefficient dependencies are determined according to the developed software algorithm based on a simplified thermodynamic cycle. The areas of possible application and use of solar power refrigerator units with the studied working pairs are determined.Conclusion. The increased unit efficiency consists in the optimal layout of all elements of the absorber generator, including the reactor, two flat mirror concentrators, a thermal substrate, a reduced internal air space volume, a double-glazed window made of two sheets of glass and a calculated thickness of heat-insulating Ripor foamed polyurethane.https://vestnik.dgtu.ru/jour/article/view/711solar powerabsorption refrigerator unitmodernised generator-absorberacammoniaac-methylamineac-ethylamineexergetic coefficients
collection DOAJ
language Russian
format Article
sources DOAJ
author M. F. Rudenko
Yu. V. Shipulina
M. Sh. Karimov
A. M. Rudenko
spellingShingle M. F. Rudenko
Yu. V. Shipulina
M. Sh. Karimov
A. M. Rudenko
INCREASING THE WORKING EFFICIENCY OF SOLAR POWER ABSORPTION REFRIGERATOR UNITS
Vestnik Dagestanskogo Gosudarstvennogo Tehničeskogo Universiteta: Tehničeskie Nauki
solar power
absorption refrigerator unit
modernised generator-absorber
acammonia
ac-methylamine
ac-ethylamine
exergetic coefficients
author_facet M. F. Rudenko
Yu. V. Shipulina
M. Sh. Karimov
A. M. Rudenko
author_sort M. F. Rudenko
title INCREASING THE WORKING EFFICIENCY OF SOLAR POWER ABSORPTION REFRIGERATOR UNITS
title_short INCREASING THE WORKING EFFICIENCY OF SOLAR POWER ABSORPTION REFRIGERATOR UNITS
title_full INCREASING THE WORKING EFFICIENCY OF SOLAR POWER ABSORPTION REFRIGERATOR UNITS
title_fullStr INCREASING THE WORKING EFFICIENCY OF SOLAR POWER ABSORPTION REFRIGERATOR UNITS
title_full_unstemmed INCREASING THE WORKING EFFICIENCY OF SOLAR POWER ABSORPTION REFRIGERATOR UNITS
title_sort increasing the working efficiency of solar power absorption refrigerator units
publisher Daghestan State Technical University
series Vestnik Dagestanskogo Gosudarstvennogo Tehničeskogo Universiteta: Tehničeskie Nauki
issn 2073-6185
2542-095X
publishDate 2020-01-01
description Objectives.The aim of the study is to develop a cyclic absorption refrigerator unit that implements technology for producing cold from solar radiation energy. Its distinctive feature comprises a highly developed solar receiving unit, consisting of two parallel-connected absorber generators whose reactors are installed in individual heat-insulated “hot box” cabinets.Method. The geometric characteristics of the absorber generator are based on the calculations of the optical and heat energy efficiency of the device models.Results. The physicochemical characteristics of activated carbons (AC) of various production are studied. The absorption capacity of the following working pairs is determined: AC-ammonia, AC-methylamine, AC-ethylamine. The calculated coefficients for the Dubinin-Radushkevich structural equations are obtained. An experimental solar energy refrigerator unit is tested using a working pair of AC-ammonia in an open test area. The operability of the upgraded device is proven. Exergetic coefficient dependencies are determined according to the developed software algorithm based on a simplified thermodynamic cycle. The areas of possible application and use of solar power refrigerator units with the studied working pairs are determined.Conclusion. The increased unit efficiency consists in the optimal layout of all elements of the absorber generator, including the reactor, two flat mirror concentrators, a thermal substrate, a reduced internal air space volume, a double-glazed window made of two sheets of glass and a calculated thickness of heat-insulating Ripor foamed polyurethane.
topic solar power
absorption refrigerator unit
modernised generator-absorber
acammonia
ac-methylamine
ac-ethylamine
exergetic coefficients
url https://vestnik.dgtu.ru/jour/article/view/711
work_keys_str_mv AT mfrudenko increasingtheworkingefficiencyofsolarpowerabsorptionrefrigeratorunits
AT yuvshipulina increasingtheworkingefficiencyofsolarpowerabsorptionrefrigeratorunits
AT mshkarimov increasingtheworkingefficiencyofsolarpowerabsorptionrefrigeratorunits
AT amrudenko increasingtheworkingefficiencyofsolarpowerabsorptionrefrigeratorunits
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