International Journal of Current Research and Review
ISSN: 2231-2196 (Print)ISSN: 0975-5241 (Online)
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IJCRR - 4(20), October, 2012

Pages: 198-202

Date of Publication: 20-Oct-2012


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EXPERIMENTAL ANALYSIS OF VARYING THE REFRIGERATION OIL PERCENTAGE IN COMPRESSOR ON THE PERFORMANCE OF VAPOUR COMPRESSION REFRIGERATION SYSTEM

Author: M. Yohan , G.Kiran Kumar

Category: Technology

Abstract:A refrigerator is a machine which attains and maintains the temperature of a space below that of surroundings by transferring heat from the space to be cooled to the surroundings with the help of a compressor. Majority of the refrigerators works on the vapor compression refrigeration system which consists of components like compressors, condensers, expansion valve and evaporator. The performance of the system depends on the performance of all the components of the system. A compressor is an important device used to raise the pressure of refrigerant to a level at which it can condense by rejecting heat to the cooling medium in the condenser. In any compressors refrigeration oil is required to prevent the friction and heat generated with in it. In general all the domestic refrigerators have hermetically sealed compressors, for these refrigerator compressors having the refrigerant R-134a and it is required good properties of refrigeration oil is required to prevent the heat generated with in the compressors. This present experimental work focus on compressor work by varying the refrigeration oil percentage on a refrigerator system capacity of 165 lts. The compressor work and performance is calculated by varying refrigeration oil percentage used in it.

Full Text:

INTRODUCTION
A compressor is a device which is used to raise the pressure of refrigerant to a level at which it can condense by rejecting heat to the cooling medium in the condenser. The compressor is an important device has to draw the refrigerant vapour from the evaporator, so that a low pressure and temperature can be maintained at which the refrigerant can boil extracting heat from the refrigerated space. The main important part of the vapour compression refrigeration system is compressor. In any compressor device piston, connecting rod, crankshaft and so many mechanical components are there. These parts are moving relative to one another. Because of these moving action the components are rubbed to each other so that friction is generated and also heat. so to prevent this heat generation lubricating oil is used . In refrigeration terminology we called refrigeration oil, with the help of refrigeration oil to prevent the heat generated with in the compressor. Generally every refrigeration oil has properties like viscosity, acidity, floc point, pour point, dielectric strength and chemical stability.. Actually these properties of refrigeration oil to effect the compressor life and performance. Generally in the domestic refrigerators have hermetically sealed compressors. In present refrigerator 1/7 HP hermetically sealed compressor is used. This paper is an experimental approach to calculate the compressor work and performance by varying the percentage of refrigeration oil. If the compressor is having low percentage of refrigeration oil the compressor parts are damaged due to more friction and heat is generated. Suppose the compressor having more percentage of refrigeration oil the suction line of the compressor is blocked due to less compression is occurred in it. Therefore proper percentage of refrigeration oil is used to run the compressor efficiently.

PRESENT WORK
The procedure for the present work is as follows. In this present experimental work a 165 lts capacity of domestic refrigerator is selected, it has 1/7 HP compressor, condenser ,expansion valve and evaporator. The work focuses to run the compressor effectively and also performance of the refrigerator system. This is only possible by providing sufficient refrigeration oil percentage used in the compressor. The rate of compressor work and performance can be increased depends on the sufficient refrigeration oil percentage used in it. The present work to find out the compressor performance and life by using and varying the refrigeration oil percentage. And also find out the optimum percentage of refrigeration oil to run the compressor efficiently. In order to know the performance characteristics of the vapor compression refrigeration system pressure and temperature gauges are installed at each entry and exit of the component. Experiments are conducted on refrigeration oil percentage in the compressor. All the values of pressures and temperatures are tabulated. The domestic refrigerator selected for the present work has the following specifications. Capacity of refrigerator - 165liters Refrigerant used - R134a Compressor - 1/7 HP Hermetically Capacity sealed. Condenser Length - 8.5m Diameter - 6.5mm Evaporator Length - 7.62m Diameter - 6.5mm Capillary tube Length - 2.128m Diameter - 0.8mm Refrigeration oil type Zed-plus lubricating oil grade-68



Where P1 = Compressor suction pressure P2 = Compressor discharge pressure P3= Condensing pressure P4= Evaporator pressure T1= Compressor suction temperature T2= Compressor discharge temperature T3= Condensing temperature T4= Evaporator temperature

Caluclation performance parameters:- 1. Compressor work = h2-h1 2. Net refrigerating effect = h1-h4 3. Coefficient of performance(COP) COP = (h1-h4)/ (h2-h1) For Test no 1 Taken the refrigerant oil = 200ml h1= 446kJ/kg h2= 520kJ/kg h3= 270kJ/kg h4= 270kJ/kg 1. Compressor work = 520-446=74kJ/kg 2.Net refrigerating effect= 446-270=176 kJ/kg 3.Coefficient of performance(COP) COP= 176/74= 2.37 4.Theoretical compressor power=74/60=1.23kw For Test no 2 Taken the refrigerant oil = 210ml h1= 444kj/kg h2= 505kj/kg h3= 268kj/kg h4= 268kJ/kg 1. Compressor work = 505-444=61kJ/kg 2.Net refrigerating effect= 444-268=176 3.Coefficient of performance(COP) COP= 176/61 = 2.88 4.Theoretical compressor power=61/60=1.02kw For Test no 3 Taken the refrigerant oil = 220ml h1= 438 kj/kg h2= 492 kj/kg h3= 268 kj/kg h4= 268 kj/kg 1. Compressor work = 492-438= 54 kj/kg 2.Net refrigerating effect= 438-268= 170 kj/kg 3.Coefficient of performance(COP) COP = 170/54 = 3.15 4.Theoretical compressor power=54/60=0.9kw For Test no 4 Taken the refrigerant oil = 230ml h1= 452 kj/kg h2= 522 kj/kg h3= 266kj/kg h4= 266kj/kg 1. Compressor work = 522-452=70 kj/kg 2.Net refrigerating effect= 452-266=186 kj/kg 3.Coefficient of performance(COP) COP = 186/70= 2.65 4.Theoretical compressor power=70/60=1.16kw For Test no 5 Taken the refrigerant oil = 240ml h1= 452 kj/kg h2= 526 kj/kg h3= 274 kj/kg h4= 274 kj/kg 1. Compressor work = 526-452=74 kj/kg 2.Net refrigerating effect= 452-274= 178 kj/kg
3.Coefficient of performance(COP) COP= 178/74= 2.40 4.Theoretical compressor power=74/60=1.23kw

RESULTS AND CONCLUSIONS
Referring to graph 1 it is seen that the COP of Refrigerant R-134a is increased from 2.37 to 3.15 with the lubricating oil quantity from 200ml to 220ml.after that the COP is decreased from 3.15 to 2.40 with the lubricating oil quantity from 220ml to 240ml. Referring the graph 2 it is seen that the compressor power is decreased from 1.32Kw to 0.9Kw with the lubricating oil quantity from 200ml to 220ml.after that the compressor power is increased from 0.9Kw to 1.23Kw with the lubricating oil quantity from 220ml to 240ml.

The present experimental setup gives the following results
1. Cop is increased 24.87% with the lubricating oil quantity from 200ml to 220ml .
2. Compressor power is reduced 31.81% with the lubricating oil quantity from 200ml to 220ml.

References:

1. Basic Refrigeration and Air conditioning by P.N Ananthanarayana, Cremaschi L., Hwang Y., Radermacher R., 2005, Experimental investigation of oil retention in air conditioning systems, Int. J. Refrigeration, 28: 1018-1028

2. Knapp, M. H. The use of synthetic lubricants in compressor. Purdue Compressor Tech. Conf., 1972, 480-482.

3. Kedzierski M. A., 2001, The effect of lubricant concentration, miscibility, and viscosity on R134a pool boiling, Int. J. Refrigeration, 24(4): 348-366.

4. Sundaresan, S. G. and Finkenstadt, W. R. PAG and polyol ester lubricant—candidates for use with HFC-134a in refrigeration compressors. ASHRAE Conference, 1992.

5. Short, G. D. High-viscosity ester lubricants for alternative refrigerants. ASHRAE Conference, 1992

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Awards, Research and Publication incentive Schemes by IJCRR

Best Article Award: 

One article from every issue is selected for the ‘Best Article Award’. Authors of selected ‘Best Article’ are rewarded with a certificate. IJCRR Editorial Board members select one ‘Best Article’ from the published issue based on originality, novelty, social usefulness of the work. The corresponding author of selected ‘Best Article Award’ is communicated and information of award is displayed on IJCRR’s website. Drop a mail to editor@ijcrr.com for more details.

Women Researcher Award:

This award is instituted to encourage women researchers to publish her work in IJCRR. Women researcher, who intends to publish her research work in IJCRR as the first author is eligible to apply for this award. Editorial Board members decide on the selection of women researchers based on the originality, novelty, and social contribution of the research work. The corresponding author of the selected manuscript is communicated and information is displayed on IJCRR’s website. Under this award selected women, the author is eligible for publication incentives. Drop a mail to editor@ijcrr.com for more details.

Emerging Researcher Award:

‘Emerging Researcher Award’ is instituted to encourage student researchers to publish their work in IJCRR. Student researchers, who intend to publish their research or review work in IJCRR as the first author are eligible to apply for this award. Editorial Board members decide on the selection of student researchers for the said award based on originality, novelty, and social applicability of the research work. Under this award selected student researcher is eligible for publication incentives. Drop a mail to editor@ijcrr.com for more details.


Best Article Award

A study by Dorothy Ebere Adimora et al. entitled \"Remediation for Effects of Domestic Violence on Psychological well-being, Depression and Suicide among Women During COVID-19 Pandemic: A Cross-cultural Study of Nigeria and Spain\" is awarded Best Article of Vol 14 issue 23
A study by Muhas C. et al. entitled \"Study on Knowledge & Awareness About Pharmacovigilance Among Pharmacists in South India\" is awarded Best article for Vol 14 issue 22
A study by Saurabh Suvidha entitled \"A Case of Mucoid Degeneration of Uterine Fibroid with Hydrosalphinx and Ovarian Cyst\" is awarded Best article of Vol 14 issue 21
A study by Alice Alice entitled \"Strengthening of Human Milk Banking across South Asian Countries: A Next Step Forward\" is awarded Best article of Vol 14 issue 20
A study by Sathyanarayanan AR et al. entitled \"The on-task Attention of Individuals with Autism Spectrum Disorder-An Eye Tracker Study Using Auticare\" is awarded Best article of Vol 14 issue 19
A study by Gupta P. et al. entitled \"A Short Review on \"A Novel Approach in Fast Dissolving Film & their Evaluation Studies\" is awarded Best Article of Vol 14 issue 18.
A study by Shafaque M. et al. entitled \"A Case-Control Study Performed in Karachi on Inflammatory Markers by Ciprofloxacin and CoAmoxicillin in Patients with Chronic Suppurative Otitis Media\" is awarded Best Article of Vol 14 issue 17
A study by Ali Nawaz et al. entitled \"A Comparative Study of Tubeless versus Standard Percutaneous Nephrolithotomy (PCNL) \? A Randomized Controlled Study\" is awarded Best Article for Vol 14 issue 16.
A study by Singh R. et al. entitled \"A Prospective Study to Find the Association of Astigmatism in Patients of Vernal Keratoconjunctivitis (VKC) in a Tertiary Health Care Centre in India (Vindhya Region MP)\" is awarded Best Article for Vol 14 issue 15
A Study by Humaira Tahir et al. entitled "Comparison of First Analgesic Demand after Major Surgeries of Obstetrics and Gynecology between Pre-Emptive Versus Intra-Operative Groups by Using Intravenous Paracetamol: A Cross-Sectional Study" is awarded Best Article for Vol 14 issue 14
A Study by Monica K. entitled "Risk Predictors for Lymphoma Development in Sjogren Syndrome - A Systematic Review" is awarded Best Article for Vol 14 issue 13
A Study by Mokhtar M Sh et al. entitled "Prevalence of Hospital Mortality of Critically Ill Elderly Patients" is awarded Best Article for Vol 14 issue 12
A Study by Vidya S. Bhat et al. entitled "Effect of an Indigenous Cleanser on the Microbial Biofilm on Acrylic Denture Base - A Pilot Study" is awarded Best Article for Vol 14 issue 11
A Study by Pandya S. et al. entitled "Acute and 28-Day Repeated Dose Subacute Toxicological Evaluation of Coroprotect Tablet in Rodents" is awarded Best Article for Vol 14 issue 10
A Study by Muhammad Zaki et al. entitled "Effect of Hemoglobin Level on the Severity of Acute Bronchiolitis in Children: A Case-Control Study" is awarded Best Article for Vol 14 issue 09
A Study by Vinita S & Ayushi S entitled "Role of Colour Doppler and Transvaginal Sonography for diagnosis of endometrial pathology in women presenting with Abnormal Uterine Bleeding" is awarded Best Article for Vol 14 issue 08
A Study by Prabhu A et al. entitled "Awareness of Common Eye Conditions among the ASHA (Accredited Social Health Activist) Workers in the Rural Communities of Udupi District- A Pilot Study" is awarded Best Article for Vol 14 issue 07
A Study by Divya MP et al. entitled "Non-Echoplanar Diffusion-Weighted Imaging and 3D Fiesta Magnetic Resonance Imaging Sequences with High Resolution Computed Tomography Temporal Bone in Assessment and Predicting the Outcome of Chronic Suppurative Otitis Media with Cholesteatoma" is awarded Best Article for Vol 14 issue 06
A Study by Zahoor Illahi Soomro et al. entitled "Functional Outcomes of Fracture Distal Radius after Fixation with Two Different Plates: A Retrospective Comparative Study" is awarded Best Article for Vol 14 issue 05
A Study by Ajai KG & Athira KN entitled "Patients’ Gratification Towards Service Delivery Among Government Hospitals with Particular Orientation Towards Primary Health Centres" is awarded Best Article for Vol 14 issue 04
A Study by Mbungu Mulaila AP et al. entitled "Ovarian Pregnancy in Kindu City, D.R. Congo - A Case Report" is awarded Best Article for Vol 14 issue 03
A Study by Maryam MJ et al. entitled "Evaluation Serum Chemerin and Visfatin Levels with Rheumatoid Arthritis: Possible Diagnostic Biomarkers" is awarded Best Article for Vol 14 issue 02
A Study by Shanthan KR et al. entitled "Comparison of Ultrasound Guided Versus Nerve Stimulator Guided Technique of Supraclavicular Brachial Plexus Block in Patients Undergoing Upper Limb Surgeries" is awarded Best Article for Vol 14 issue 01
A Study by Amol Sanap et al. entitled "The Outcome of Coxofemoral Bypass Using Cemented Bipolar Hemiarthroplasty in the Treatment of Unstable Intertrochanteric Fracture of Femur in a Rural Setup" is awarded Best Article Award of Vol 13 issue 24
A Study by Manoj KP et al. entitled "A Randomized Comparative Clinical Trial to Know the Efficacy of Ultrasound-Guided Transversus Abdominis Plane Block Against Multimodal Analgesia for Postoperative Analgesia Following Caesarean Section" is awarded Best Article Award of Vol 13 issue 23
A Study by Karimova II et al. entitled "Changes in the Activity of Intestinal Carbohydrases in Alloxan-Induced Diabetic Rats and Their Correction with Prenalon" is awarded Best Article of Vol 13 issue 22
A Study by Ashish B Roge et al. entitled "Development, Validation of RP-HPLC Method and GC MS Analysis of Desloratadine HCL and It’s Degradation Products" is awarded Best Article of Vol 13 issue 21
A Study by Isha Gaurav et al. entitled "Association of ABO Blood Group with Oral Cancer and Precancer – A Case-control Study" is awarded Best Article for Vol 13 issue 20
A Study by Amr Y. Zakaria et al. entitled "Single Nucleotide Polymorphisms of ATP-Binding Cassette Gene(ABCC3 rs4793665) affect High Dose Methotrexate-Induced Nephrotoxicity in Children with Osteosarcoma" is awarded Best Article for Vol 13 issue 19
A Study by Kholis Ernawati et al. entitled "The Utilization of Mobile-Based Information Technology in the Management of Dengue Fever in the Community Year 2019-2020: Systematic Review" is awarded Best Article for Vol 13 issue 18
A Study by Bhat Asifa et al. entitled "Efficacy of Modified Carbapenem Inactivation Method for Carbapenemase Detection and Comparative Evaluation with Polymerase Chain Reaction for the Identification of Carbapenemase Producing Klebsiella pneumonia Isolates" is awarded Best Article for Vol 13 issue 17
A Study by Gupta R. et al. entitled "A Clinical Study of Paediatric Tracheostomy: Our Experience in a Tertiary Care Hospital in North India" is awarded Best Article for Vol 13 issue 16
A Study by Chandran Anand et al. entitled "A Prospective Study on Assessment of Quality of Life of Patients Receiving Sorafenib for Hepatocellular Carcinoma" is awarded Best article for Vol 13 issue 15
A Study by Rosa PS et al. entitled "Emotional State Due to the Covid – 19 Pandemic in People Residing in a Vulnerable Area in North Lima" is awarded Best Article for Vol 13 issue 14
A Study by Suvarna Sunder J et al. entitled "Endodontic Revascularization of Necrotic Permanent Anterior Tooth with Platelet Rich Fibrin, Platelet Rich Plasma, and Blood Clot - A Comparative Study" is awarded Best Article for Vol 13 issue 13
A Study by Mona Isam Eldin Osman et al. entitled "Psychological Impact and Risk Factors of Sexual Abuse on Sudanese Children in Khartoum State" is awarded Best Article for Vol 13 issue 12
A Study by Khaw Ming Sheng & Sathiapriya Ramiah entitled "Web Based Suicide Prevention Application for Patients Suffering from Depression" is awarded Best Article for Vol 13 issue 11
A Study by Purushottam S. G. et al. entitled "Development of Fenofibrate Solid Dispersions for the Plausible Aqueous Solubility Augmentation of this BCS Class-II Drug" is awarded Best article for Vol 13 issue 10
A Study by Kumar S. et al. entitled "A Study on Clinical Spectrum, Laboratory Profile, Complications and Outcome of Pediatric Scrub Typhus Patients Admitted to an Intensive Care Unit from a Tertiary Care Hospital from Eastern India" is awarded Best Article for Vol 13 issue 09
A Study by Mardhiah Kamaruddin et al. entitled "The Pattern of Creatinine Clearance in Gestational and Chronic Hypertension Women from the Third Trimester to 12 Weeks Postpartum" is awarded Best Article for Vol 13 issue 08
A Study by Sarmila G. B. et al. entitled "Study to Compare the Efficacy of Orally Administered Melatonin and Clonidine for Attenuation of Hemodynamic Response During Laryngoscopy and Endotracheal Intubation in Gastrointestinal Surgeries" is awarded Best Article for Vol 13 issue 07
A Study by M. Muthu Uma Maheswari et al. entitled "A Study on C-reactive Protein and Liver Function Tests in Laboratory RT-PCR Positive Covid-19 Patients in a Tertiary Care Centre – A Retrospective Study" is awarded Best Article of Vol 13 issue 06 Special issue Modern approaches for diagnosis of COVID-19 and current status of awareness
A Study by Gainneos PD et al. entitled "A Comparative Evaluation of the Levels of Salivary IgA in HIV Affected Children and the Children of the General Population within the Age Group of 9 – 12 Years – A Cross-Sectional Study" is awarded Best Article of Vol 13 issue 05 Special issue on Recent Advances in Dentistry for better Oral Health
A Study by Alkhansa Mahmoud et al. entitled "mRNA Expression of Somatostatin Receptors (1-5) in MCF7 and MDA-MB231 Breast Cancer Cells" is awarded Best Article of Vol 13 issue 06
A Study by Chen YY and Ghazali SRB entitled "Lifetime Trauma, posttraumatic stress disorder Symptoms and Early Adolescence Risk Factors for Poor Physical Health Outcome Among Malaysian Adolescents" is awarded Best Article of Vol 13 issue 04 Special issue on Current Updates in Plant Biology to Medicine to Healthcare Awareness in Malaysia
A Study by Kumari PM et al. entitled "Study to Evaluate the Adverse Drug Reactions in a Tertiary Care Teaching Hospital in Tamilnadu - A Cross-Sectional Study" is awarded Best Article for Vol 13 issue 05
A Study by Anu et al. entitled "Effectiveness of Cytological Scoring Systems for Evaluation of Breast Lesion Cytology with its Histopathological Correlation" is awarded Best Article of Vol 13 issue 04
A Study by Sharipov R. Kh. et al. entitled "Interaction of Correction of Lipid Peroxidation Disorders with Oxibral" is awarded Best Article of Vol 13 issue 03
A Study by Tarek Elwakil et al. entitled "Led Light Photobiomodulation Effect on Wound Healing Combined with Phenytoin in Mice Model" is awarded Best Article of Vol 13 issue 02
A Study by Mohita Ray et al. entitled "Accuracy of Intra-Operative Frozen Section Consultation of Gastrointestinal Biopsy Samples in Correlation with the Final Histopathological Diagnosis" is awarded Best Article for Vol 13 issue 01
A Study by Badritdinova MN et al. entitled "Peculiarities of a Pain in Patients with Ischemic Heart Disease in the Presence of Individual Combines of the Metabolic Syndrome" is awarded Best Article for Vol 12 issue 24
A Study by Sindhu Priya E S et al. entitled "Neuroprotective activity of Pyrazolone Derivatives Against Paraquat-induced Oxidative Stress and Locomotor Impairment in Drosophila melanogaster" is awarded Best Article for Vol 12 issue 23
A Study by Habiba Suhail et al. entitled "Effect of Majoon Murmakki in Dysmenorrhoea (Usre Tams): A Standard Controlled Clinical Study" is awarded Best Article for Vol 12 issue 22
A Study by Ghaffar UB et al. entitled "Correlation between Height and Foot Length in Saudi Population in Majmaah, Saudi Arabia" is awarded Best Article for Vol 12 issue 21
A Study by Siti Sarah Binti Maidin entitled "Sleep Well: Mobile Application to Address Sleeping Problems" is awarded Best Article for Vol 12 issue 20
A Study by Avijit Singh"Comparison of Post Operative Clinical Outcomes Between “Made in India” TTK Chitra Mechanical Heart Valve Versus St Jude Mechanical Heart Valve in Valve Replacement Surgery" is awarded Best Article for Vol 12 issue 19
A Study by Sonali Banerjee and Mary Mathews N. entitled "Exploring Quality of Life and Perceived Experiences Among Couples Undergoing Fertility Treatment in Western India: A Mixed Methodology" is awarded Best Article for Vol 12 issue 18
A Study by Jabbar Desai et al. entitled "Prevalence of Obstructive Airway Disease in Patients with Ischemic Heart Disease and Hypertension" is awarded Best Article for Vol 12 issue 17
A Study by Juna Byun et al. entitled "Study on Difference in Coronavirus-19 Related Anxiety between Face-to-face and Non-face-to-face Classes among University Students in South Korea" is awarded Best Article for Vol 12 issue 16
A Study by Sudha Ramachandra & Vinay Chavan entitled "Enhanced-Hybrid-Age Layered Population Structure (E-Hybrid-ALPS): A Genetic Algorithm with Adaptive Crossover for Molecular Docking Studies of Drug Discovery Process" is awarded Best article for Vol 12 issue 15
A Study by Varsha M. Shindhe et al. entitled "A Study on Effect of Smokeless Tobacco on Pulmonary Function Tests in Class IV Workers of USM-KLE (Universiti Sains Malaysia-Karnataka Lingayat Education Society) International Medical Programme, Belagavi" is awarded Best article of Vol 12 issue 14, July 2020
A study by Amruta Choudhary et al. entitled "Family Planning Knowledge, Attitude and Practice Among Women of Reproductive Age from Rural Area of Central India" is awarded Best Article for special issue "Modern Therapeutics Applications"
A study by Raunak Das entitled "Study of Cardiovascular Dysfunctions in Interstitial Lung Diseas epatients by Correlating the Levels of Serum NT PRO BNP and Microalbuminuria (Biomarkers of Cardiovascular Dysfunction) with Echocardiographic, Bronchoscopic and HighResolution Computed Tomography Findings of These ILD Patients" is awarded Best Article of Vol 12 issue 13 
A Study by Kannamani Ramasamy et al. entitled "COVID-19 Situation at Chennai City – Forecasting for the Better Pandemic Management" is awarded best article for  Vol 12 issue 12
A Study by Muhammet Lutfi SELCUK and Fatma entitled "Distinction of Gray and White Matter for Some Histological Staining Methods in New Zealand Rabbit's Brain" is awarded best article for  Vol 12 issue 11
A Study by Anamul Haq et al. entitled "Etiology of Abnormal Uterine Bleeding in Adolescents – Emphasis Upon Polycystic Ovarian Syndrome" is awarded best article for  Vol 12 issue 10
A Study by entitled "Estimation of Reference Interval of Serum Progesterone During Three Trimesters of Normal Pregnancy in a Tertiary Care Hospital of Kolkata" is awarded best article for  Vol 12 issue 09
A Study by Ilona Gracie De Souza & Pavan Kumar G. entitled "Effect of Releasing Myofascial Chain in Patients with Patellofemoral Pain Syndrome - A Randomized Clinical Trial" is awarded best article for  Vol 12 issue 08
A Study by Virendra Atam et. al. entitled "Clinical Profile and Short - Term Mortality Predictors in Acute Stroke with Emphasis on Stress Hyperglycemia and THRIVE Score : An Observational Study" is awarded best article for  Vol 12 issue 07
A Study by K. Krupashree et. al. entitled "Protective Effects of Picrorhizakurroa Against Fumonisin B1 Induced Hepatotoxicity in Mice" is awarded best article for issue Vol 10 issue 20
A study by Mithun K.P. et al "Larvicidal Activity of Crude Solanum Nigrum Leaf and Berries Extract Against Dengue Vector-Aedesaegypti" is awarded Best Article for Vol 10 issue 14 of IJCRR
A study by Asha Menon "Women in Child Care and Early Education: Truly Nontraditional Work" is awarded Best Article for Vol 10 issue 13
A study by Deep J. M. "Prevalence of Molar-Incisor Hypomineralization in 7-13 Years Old Children of Biratnagar, Nepal: A Cross Sectional Study" is awarded Best Article for Vol 10 issue 11 of IJCRR
A review by Chitra et al to analyse relation between Obesity and Type 2 diabetes is awarded 'Best Article' for Vol 10 issue 10 by IJCRR. 
A study by Karanpreet et al "Pregnancy Induced Hypertension: A Study on Its Multisystem Involvement" is given Best Paper Award for Vol 10 issue 09

List of Awardees

A Study by Ese Anibor et al. "Evaluation of Temporomandibular Joint Disorders Among Delta State University Students in Abraka, Nigeria" from Vol 13 issue 16 received Emerging Researcher Award


A Study by Alkhansa Mahmoud et al. entitled "mRNA Expression of Somatostatin Receptors (1-5) in MCF7 and MDA-MB231 Breast Cancer Cells" from Vol 13 issue 06 received Emerging Researcher Award


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