Pub Date : 1900-01-01DOI: 10.17586/1606-4313-2019-18-3-23-28
E. V. Mereutsa, A. A. Sukhikh
{"title":"Experimental study of thermodynamic efficiency of the absorption refrigeration machine and heat pump complex","authors":"E. V. Mereutsa, A. A. Sukhikh","doi":"10.17586/1606-4313-2019-18-3-23-28","DOIUrl":"https://doi.org/10.17586/1606-4313-2019-18-3-23-28","url":null,"abstract":"","PeriodicalId":148431,"journal":{"name":"Journal International Academy of Refrigeration","volume":"32 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":"121827888","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}
Pub Date : 1900-01-01DOI: 10.17586/1606-4313-2021-20-2-21-27
M. S. Dzitoev, Y. Tatarenko, А.V. Моlоsтоv
The paper considers the perspectives of cooling the working fluid in a volumetric compressor by injecting liquid into gas. The results of numerical analysis for the operation of the stage of a linear‑driven reciprocating compressor using KOMDET‑VKA software at different pressure ratios in the stage are presented. For evaporative cooling, it is proposed to use a mixture of air with nitrogen, helium, and argon. These agents are used in the gas supply systems of space rockets. The expediency of using evaporative cooling by injecting liquid into the suction cavity of the working substance in a reciprocating compressor is shown. It allows reducing the compression work and gas injection temperature as well as increasing increase its productivity.
{"title":"On evaporative cooling of compressor","authors":"M. S. Dzitoev, Y. Tatarenko, А.V. Моlоsтоv","doi":"10.17586/1606-4313-2021-20-2-21-27","DOIUrl":"https://doi.org/10.17586/1606-4313-2021-20-2-21-27","url":null,"abstract":"The paper considers the perspectives of cooling the working fluid in a volumetric compressor by injecting liquid into gas. The results of numerical analysis for the operation of the stage of a linear‑driven reciprocating compressor using KOMDET‑VKA software at different pressure ratios in the stage are presented. For evaporative cooling, it is proposed to use a mixture of air with nitrogen, helium, and argon. These agents are used in the gas supply systems of space rockets. The expediency of using evaporative cooling by injecting liquid into the suction cavity of the working substance in a reciprocating compressor is shown. It allows reducing the compression work and gas injection temperature as well as increasing increase its productivity.","PeriodicalId":148431,"journal":{"name":"Journal International Academy of Refrigeration","volume":"32 9","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"113942741","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}
Pub Date : 1900-01-01DOI: 10.17586/1606-4313-2020-19-1-27-33
L. Gileva, A. Aksenov, Y. Kozhukhov, A. Petrov
The efficiency of compressor machines for refrigeration needs is characterized by the efficiency coefficent. Increasing the efficiency of the stage is necessary, especially for centrifugal compressor machines. In this paper, the study of the centrifugal compressor inlet radial chamber, which directly affects the efficiency of the entire stage, is carried out. A mathematical model has been selected for conducting a numerical experiment with its subsequent validation with a full-scale experiment. The selection of the mathematical model included grid independence study, boundary conditions selection, and the study of the y + wall function influence for a specific turbulence model. y + is an important factor in numerical experiments, and its incorrect choice can lead to a non-physical flow pattern. There are certain recommendations for the y + value for different turbulence models. However, as this study is shown, the existing recommendations are not universal for different centrifugal compressors flow parts. Recommendations on the value of the y + parameter for inlet chambers with different nozzle values at different Reynolds number values are investigated and given in this paper. To determine the losses dependence function form on the average y + value, the results of calculations are summarized in separate graphs and approximated by separate functions. Approximation dependence is obtained based on the numerical experiment results of the average y + value influence, the chamber nozzle coefficient and the Reynolds number on the losses of the inlet radial chamber. The obtained dependence was used to determine the optimal value of y + mean and the wall layer for experimental studies of chambers. The results of the numerical experiment are compared with the results of the full-scale experiment and experimental dependences are obtained. The results obtained will simplify further work on modeling the inlet radial chambers.
{"title":"The study of y+ influence on the results of nozzle flow numerical simulation in the centrifugal compressor inlet chamber","authors":"L. Gileva, A. Aksenov, Y. Kozhukhov, A. Petrov","doi":"10.17586/1606-4313-2020-19-1-27-33","DOIUrl":"https://doi.org/10.17586/1606-4313-2020-19-1-27-33","url":null,"abstract":"The efficiency of compressor machines for refrigeration needs is characterized by the efficiency coefficent. Increasing the efficiency of the stage is necessary, especially for centrifugal compressor machines. In this paper, the study of the centrifugal compressor inlet radial chamber, which directly affects the efficiency of the entire stage, is carried out. A mathematical model has been selected for conducting a numerical experiment with its subsequent validation with a full-scale experiment. The selection of the mathematical model included grid independence study, boundary conditions selection, and the study of the y + wall function influence for a specific turbulence model. y + is an important factor in numerical experiments, and its incorrect choice can lead to a non-physical flow pattern. There are certain recommendations for the y + value for different turbulence models. However, as this study is shown, the existing recommendations are not universal for different centrifugal compressors flow parts. Recommendations on the value of the y + parameter for inlet chambers with different nozzle values at different Reynolds number values are investigated and given in this paper. To determine the losses dependence function form on the average y + value, the results of calculations are summarized in separate graphs and approximated by separate functions. Approximation dependence is obtained based on the numerical experiment results of the average y + value influence, the chamber nozzle coefficient and the Reynolds number on the losses of the inlet radial chamber. The obtained dependence was used to determine the optimal value of y + mean and the wall layer for experimental studies of chambers. The results of the numerical experiment are compared with the results of the full-scale experiment and experimental dependences are obtained. The results obtained will simplify further work on modeling the inlet radial chambers.","PeriodicalId":148431,"journal":{"name":"Journal International Academy of Refrigeration","volume":"1 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":"131168426","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}
Pub Date : 1900-01-01DOI: 10.17586/1606-4313-2023-22-1-55-65
R. Sanavbarov, A. V. Zaitsev, F. Shermatova
{"title":"Analysis of low-tonnage LNG production technologies with nitrogen circulation cycle","authors":"R. Sanavbarov, A. V. Zaitsev, F. Shermatova","doi":"10.17586/1606-4313-2023-22-1-55-65","DOIUrl":"https://doi.org/10.17586/1606-4313-2023-22-1-55-65","url":null,"abstract":"","PeriodicalId":148431,"journal":{"name":"Journal International Academy of Refrigeration","volume":"4 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":"134147885","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}
Pub Date : 1900-01-01DOI: 10.17586/1606-4313-2022-21-3-74-79
A. Kanareykin
{"title":"Cooling infinite rectangular plate with adiabatically isolated side wall under boundary conditions of the third kind","authors":"A. Kanareykin","doi":"10.17586/1606-4313-2022-21-3-74-79","DOIUrl":"https://doi.org/10.17586/1606-4313-2022-21-3-74-79","url":null,"abstract":"","PeriodicalId":148431,"journal":{"name":"Journal International Academy of Refrigeration","volume":"36 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":"133805185","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}
Pub Date : 1900-01-01DOI: 10.17586/1606-4313-2020-19-2-26-30
V. A. Kosachevsky
The article analyzes different approaches to the modelling of scroll compressor central part. They are compared in terms of different operation principles used for scroll machines. The schemes of spiral cut-off are analyzed. The concept minimal critical angle for spiral cut-off is introduced and substantiated. The technique of the angle estimation, based on the equations for intrados of scroll machine working tool, is suggested. The relevance of correct estimation for the lower boundary of the cut-off angle for wraps in scroll machines designing is emphasized. The technique described is suggested for the purpose.
{"title":"On the cut-off angle for the wraps of scroll compressors. An analytical approach","authors":"V. A. Kosachevsky","doi":"10.17586/1606-4313-2020-19-2-26-30","DOIUrl":"https://doi.org/10.17586/1606-4313-2020-19-2-26-30","url":null,"abstract":"The article analyzes different approaches to the modelling of scroll compressor central part. They are compared in terms of different operation principles used for scroll machines. The schemes of spiral cut-off are analyzed. The concept minimal critical angle for spiral cut-off is introduced and substantiated. The technique of the angle estimation, based on the equations for intrados of scroll machine working tool, is suggested. The relevance of correct estimation for the lower boundary of the cut-off angle for wraps in scroll machines designing is emphasized. The technique described is suggested for the purpose.","PeriodicalId":148431,"journal":{"name":"Journal International Academy of Refrigeration","volume":"135 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":"123157102","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}
Pub Date : 1900-01-01DOI: 10.17586/1606-4313-2019-18-4-42-48
V. Sibirtsev, M. A. Chekanov, I. A. Naumov, S.A. Stroyev
A biotesting technique is described, which provides for recording changes in the intensities of elastic light scattering, as well as light absorption and intrinsic photofluorescence of the protein component of samples with viable test microorganisms incubated in a liquid nutrient medium in the presence and absence of various test factors. The results of the analysis using this technique of the influence on the dynamics of vital activity of microorganisms (such as Escherichia coli, Rhodotorula glutinis and Chlorella vulgaris) of various amounts of anolyte and catholyte (obtained by electrolysis of aqueous solutions of NaCl and Na2SO4), as well as external high-frequency electromagnetic fields (EHFEF) with different intensity (U) and frequency of its change (ν) and with different modes of exposure to test microorganisms (TM), are presented. On the basis the results it has been shown that even a fairly simple electrolysis treatment of aqueous solutions of commonly available non-organic salts can be used to prepare effective and safe antiseptic (solutions of anolytes) and probiotic (solutions of catholytes) agents. Weak EHFEF of the megahertz range, depending on their frequency, can significantly inhibit and activate the vital activity of TM. Periodic exposure to EHFEF has a greater effect on TM than permanent one. With the combined action of EHFEF and solutions of anolytes or catholytes, they can mutually reinforce their influence on the vital activity of TM.
{"title":"Influence on microorganisms’vital activity of high frequency electromagnetic fields and solutions of catolytes and anolithes","authors":"V. Sibirtsev, M. A. Chekanov, I. A. Naumov, S.A. Stroyev","doi":"10.17586/1606-4313-2019-18-4-42-48","DOIUrl":"https://doi.org/10.17586/1606-4313-2019-18-4-42-48","url":null,"abstract":"A biotesting technique is described, which provides for recording changes in the intensities of elastic light scattering, as well as light absorption and intrinsic photofluorescence of the protein component of samples with viable test microorganisms incubated in a liquid nutrient medium in the presence and absence of various test factors. The results of the analysis using this technique of the influence on the dynamics of vital activity of microorganisms (such as Escherichia coli, Rhodotorula glutinis and Chlorella vulgaris) of various amounts of anolyte and catholyte (obtained by electrolysis of aqueous solutions of NaCl and Na2SO4), as well as external high-frequency electromagnetic fields (EHFEF) with different intensity (U) and frequency of its change (ν) and with different modes of exposure to test microorganisms (TM), are presented. On the basis the results it has been shown that even a fairly simple electrolysis treatment of aqueous solutions of commonly available non-organic salts can be used to prepare effective and safe antiseptic (solutions of anolytes) and probiotic (solutions of catholytes) agents. Weak EHFEF of the megahertz range, depending on their frequency, can significantly inhibit and activate the vital activity of TM. Periodic exposure to EHFEF has a greater effect on TM than permanent one. With the combined action of EHFEF and solutions of anolytes or catholytes, they can mutually reinforce their influence on the vital activity of TM.","PeriodicalId":148431,"journal":{"name":"Journal International Academy of Refrigeration","volume":"27 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":"134500056","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}
Pub Date : 1900-01-01DOI: 10.17586/1606-4313-2019-18-1-77-83
V. Volchenko, K. V. Dvoryankina
Рассмотрены проблемы использования различных ингредиентов в технологии многокомпонентных пищевых продуктов; отмечена необходимость баланса белковой и жировой составляющих. Выбраны основные направления совершенствования технологий изготовления данных групп продукции, основной упор сделан на колбасные изделия. Рассмотрены варианты совершенствования технологии изготовления вареных колбас, проведен анализ потребительских предпочтений, сделаны выводы. Для проведения исследований использовали общепринятые органолептические, физико-химические методы, а также методы статистического анализа данных. Разработана технология производства мясных колбас с использованием малоценного белкового сырья, в качестве которого было выбрано свиное сердце; установлена проблема высокой обводненности готовой продукции в данном варианте технологии. Для решения указанной проблемы была разработана методика обезвоживания сырья с целью повышения содержания белка в готовом продукте, выбран наилучший вариант обезвоживания свиного сердца путем бланширования острым паром над поверхностью солевого раствора, для чего была проведена оптимизация по концентрации раствора и по времени бланширования. Предлагается использовать полученные результаты для выпуска нового ассортимента колбасных изделий. Ключевые слова: вареные колбасы, кулинарные продукты, термическая обработка.
{"title":"The possibility of using pork heart in the manufacture of sausages","authors":"V. Volchenko, K. V. Dvoryankina","doi":"10.17586/1606-4313-2019-18-1-77-83","DOIUrl":"https://doi.org/10.17586/1606-4313-2019-18-1-77-83","url":null,"abstract":"Рассмотрены проблемы использования различных ингредиентов в технологии многокомпонентных пищевых продуктов; отмечена необходимость баланса белковой и жировой составляющих. Выбраны основные направления совершенствования технологий изготовления данных групп продукции, основной упор сделан на колбасные изделия. Рассмотрены варианты совершенствования технологии изготовления вареных колбас, проведен анализ потребительских предпочтений, сделаны выводы. Для проведения исследований использовали общепринятые органолептические, физико-химические методы, а также методы статистического анализа данных. Разработана технология производства мясных колбас с использованием малоценного белкового сырья, в качестве которого было выбрано свиное сердце; установлена проблема высокой обводненности готовой продукции в данном варианте технологии. Для решения указанной проблемы была разработана методика обезвоживания сырья с целью повышения содержания белка в готовом продукте, выбран наилучший вариант обезвоживания свиного сердца путем бланширования острым паром над поверхностью солевого раствора, для чего была проведена оптимизация по концентрации раствора и по времени бланширования. Предлагается использовать полученные результаты для выпуска нового ассортимента колбасных изделий. Ключевые слова: вареные колбасы, кулинарные продукты, термическая обработка.","PeriodicalId":148431,"journal":{"name":"Journal International Academy of Refrigeration","volume":"37 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":"133399098","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}
Pub Date : 1900-01-01DOI: 10.17586/1606-4313-2020-19-3-83-90
S. Rykov, A. Sverdlov, V. Rykov, I. Kudryavtseva, E. E. Ustyuzhanin
A method is proposed for constructing the fundamental equation of state (FEoS) of a liquid and gas that takes into account the features of a thermodynamic surface in the vicinity of a critical point. The structure of the equation of state is chosen in accordance with the new representation of the scale hypothesis in the form of an expression for the Helmholtz free energy F = F r + F s , where F r is the regular function of density ρ and temperature T; F s = F s (ρ, T, δ, a (x)) is a singular component F that describes in the asymptotic neighborhood of the critical point the behavior of the equilibrium properties of the liquid in accordance with the scale theory (MT) of critical phenomena. Here δ is the critical index of the critical isotherm; a 0 (x) is the large-scale free-energy function of Kudryavtseva – Rykov, which is developed on the basis of Migdal’s phenomenological theory, the Benedek hypothesis, and the Scofield – Lister – Ho linear model; x is a scale variable. When calculating the individual parameters of the Helmholtz free energy scale function a 0 (x), a similarity theory relation is used, which relates the lattice gas and the real fluid. Based on the proposed method, an equation of state for sulfur hexafluoride has been developed, which, in accordance with MT, describes the behavior of equilibrium properties of the SF 6 . A comparison is made of experimental data, data on isochoric heat capacity and isobaric heat capacity, density values p-ρ-T of saturated steam and saturated liquid with the corresponding data calculated on the basis of the developed FEoS o SF 6 .
提出了一种考虑临界附近热力学面特征的液体和气体基本状态方程的构造方法。根据尺度假设的新表示选择状态方程的结构，其形式为亥姆霍兹自由能F = F r + F s，其中F r是密度ρ和温度T的正则函数;F s = F s (ρ， T， δ， a (x))是一个奇异分量F，它根据临界现象的尺度理论描述了在临界点的渐近邻域内液体平衡性质的行为。其中δ为临界等温线的临界指数;a 0 (x)是Kudryavtseva - Rykov的大尺度自由能函数，它是在Migdal的现象学理论、Benedek假设和Scofield - Lister - Ho线性模型的基础上发展起来的;X是一个尺度变量。在计算亥姆霍兹自由能标度函数0 (x)的各个参数时，采用了将晶格气体与实际流体联系起来的相似理论关系。基于所提出的方法，建立了六氟化硫的状态方程，该方程与MT相一致，描述了sf6的平衡性质行为。将实验数据、等时热容和等压热容数据、饱和蒸汽和饱和液体的密度值p-ρ-T与sf6开发的FEoS计算的相应数据进行了比较。
{"title":"A method for constructing the equation of state of a liquid and gas based on the Migdal phenomenological theory and the Benedek hypothesis","authors":"S. Rykov, A. Sverdlov, V. Rykov, I. Kudryavtseva, E. E. Ustyuzhanin","doi":"10.17586/1606-4313-2020-19-3-83-90","DOIUrl":"https://doi.org/10.17586/1606-4313-2020-19-3-83-90","url":null,"abstract":"A method is proposed for constructing the fundamental equation of state (FEoS) of a liquid and gas that takes into account the features of a thermodynamic surface in the vicinity of a critical point. The structure of the equation of state is chosen in accordance with the new representation of the scale hypothesis in the form of an expression for the Helmholtz free energy F = F r + F s , where F r is the regular function of density ρ and temperature T; F s = F s (ρ, T, δ, a (x)) is a singular component F that describes in the asymptotic neighborhood of the critical point the behavior of the equilibrium properties of the liquid in accordance with the scale theory (MT) of critical phenomena. Here δ is the critical index of the critical isotherm; a 0 (x) is the large-scale free-energy function of Kudryavtseva – Rykov, which is developed on the basis of Migdal’s phenomenological theory, the Benedek hypothesis, and the Scofield – Lister – Ho linear model; x is a scale variable. When calculating the individual parameters of the Helmholtz free energy scale function a 0 (x), a similarity theory relation is used, which relates the lattice gas and the real fluid. Based on the proposed method, an equation of state for sulfur hexafluoride has been developed, which, in accordance with MT, describes the behavior of equilibrium properties of the SF 6 . A comparison is made of experimental data, data on isochoric heat capacity and isobaric heat capacity, density values p-ρ-T of saturated steam and saturated liquid with the corresponding data calculated on the basis of the developed FEoS o SF 6 .","PeriodicalId":148431,"journal":{"name":"Journal International Academy of Refrigeration","volume":"29 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":"116535033","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}
Pub Date : 1900-01-01DOI: 10.17586/1606-4313-2021-20-3-45-56
M. A. D. Tchibozo, Romaine CAPO-CHICHI, Antoinette Adjagodo, E. Ladekan, T. Guidi, Larissa V. Galimova
The Hazard Analysis and Critical Control Point system (HACCP) is a scientific and systematic approach to identify hazards and provide measures for their control to ensure food safety. Thus, to ensure that the quality of agbélima, a product derived from cassava is taken into consideration during processing, the HACCP system has been applied to improve both the quality and the safety of that product. The methodology used for the implementation of the quality approach on the chain of production of agbelima in South Benin is summarized by a survey for the analysis of the context and the environment of agbelima production, the hazard analysis and the determination of the critical points related to the production of agbelima, the realization of the model of the quality assurance system (HACCP) and the verification of the effectiveness of the system implemented. The hazard analysis was carried out according to the raw, material, labor, equipment, environment and method. The elaboration of the HACCP theorical model was carried out according to twelve classic steps. The HACCP system is implemented on the production site. Before and after the implementation of the system, microbiological analysis on eighteen samples of agbelima were carried out. The results of the hazard analysis indicate that hazards exist at all stages of agbelima production. The application of the HACCP theorical model resulted in the detection of 6 Critical Control Points (CCPs) throughout the production chain. These are the reception of the raw material, washing, grinding, pressing, fine milling, and packaging. The analysis reveals that all eighteen samples of agbelima analysed before the implementation of the approach are not in conformity with the regulatory requirements. However, after the application of the system, a varying reduction from 93.49 % to 100 % was noted for microorganisms such as: Total Mesophilic Flora, Lactic Flora, Yeasts and Moulds and Sulfito Reducing Anaerobes, ColiformsThermotolerant, E. coli, Staphylococci and Salmonella in agbelima samples. Compliance with the implementation guide is 77.5 % in relation to twelve steps of the system application. Improvements are needed on the records and their effective updating to maintain the level of quality of this product.
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