Efficiency Improvement of Single Phase Transformer Using Virgin Coconut Oil

2015 ◽  
Vol 793 ◽  
pp. 187-191
Author(s):  
A.A.H. Zaidi ◽  
Nuriziani Hussin ◽  
Dina Maizana
Keyword(s):  
Single Phase ◽  
Renewable Energy Sources ◽  
Coconut Oil ◽  
Mineral Oil ◽  
Virgin Coconut Oil ◽  
Phase Step ◽  
Before And After ◽  
Good Improvement ◽  
Insulating Liquid ◽  
Transformer Insulation

The application of mineral oil in transformer is prominently act as and insulator and a coolant liquid. More often, petroleum based oil is used because most its elements are good to act as insulator such as excellent heat transfer and low in viscosity. Anyhow, the usage of mineral oil in transformer is possibly hazardous to the environment considering that it is poor biodegradable liquid where when a spill or leakage happens, it could pollute the environment surroundings. Moreover, it is known as a non-renewable energy sources, the world will be out of it someday near future. For this reason, a new option of transformer insulation liquid is studied. Vegetable oil is a fully biodegradable insulating liquid and for this paper, coconut oil is used as the insulator. In this paper, it concentrates on the performance of the transformer before and after virgin coconut oil is applied in a single-phase step down transformer that use the 220 V supply and 50 Hz frequency. Transformer is connected to 110V induction motor as load and has been test in two conditions, dry and after virgin coconut oil is applied. Comparison is made from both results and clearly shown a good improvement when virgin coconut oil is used as insulation oil.

Palm Oil as the Cooling Liquid in Single Phase Transformer for Better Efficiency

2015 ◽  
Vol 793 ◽  
pp. 192-196 ◽  
Author(s):  
A.A.H. Zaidi ◽  
Nuriziani Hussin ◽  
Dina Maizana
Keyword(s):  
Vegetable Oils ◽  
Palm Oil ◽  
Single Phase ◽  
Oil Spills ◽  
Negative Impact ◽  
Future Generation ◽  
Dielectric Strength ◽  
Mineral Oil ◽  
Phase Step ◽  
Before And After

The important purpose of mineral oil in transformer is to be insulant and it is role of being a coolant. Petroleum based oil is commonly used because it has a good dielectric strength and cooling performance. However, the application of mineral oil brings negative impact to the environment such as oil spills, leakage, explosion and soon petroleum based oil will be running out for future generation used. Thus, vegetable oil is chosen as an alternative to replace mineral oil for transformer insulation liquid. Formerly, most of Malaysian researches were focusing on the properties of the vegetable oils rather than investigate the effect on the transformer performances after the vegetable oils are applied. Hence, this paper focuses on the performance of the transformer before and after vegetable oils are applied. For this paper, refined palm oil is used as insulation liquid for a single-phase step down transformer which use the 220 V supply and 50 Hz frequency. Transformer is connected to 110V induction motor as load and has been test in two conditions, dry and after palm oil is applied. Comparison is made from both results and clearly shown a good improvement when palm oil is used as insulation oil.

scholarly journals Electrical insulating liquid: A review

2017 ◽  
Vol 07 (04) ◽  
pp. 1730001 ◽  
Author(s):  
Deba Kumar Mahanta ◽  
Shakuntala Laskar
Keyword(s):  
Coconut Oil ◽  
Mineral Oil ◽  
Insulating Materials ◽  
Insulating Material ◽  
Insulating Liquids ◽  
Materials Used ◽  
Insulating Liquid ◽  
Transformer Insulation ◽  
Oil Sunflower

Insulating liquid plays an important role for the life span of the transformer. Petroleum-based mineral oil has become dominant insulating liquid of transformer for more than a century for its excellent dielectric and cooling properties. However, the usage of petroleum-based mineral oil, derived from a nonrenewable energy source, has affected the environment for its nonbiodegradability property. Therefore, researchers direct their attention to renewable and biodegradable alternatives. Palm fatty acid ester, coconut oil, sunflower oil, etc. are considered as alternatives to replace mineral oil as transformer insulation liquid. This paper gives an extensive review of different liquid insulating materials used in a transformer. Characterization of different liquids as an insulating material has been discussed. An attempt has been made to classify different insulating liquids-based on different properties.

scholarly journals The Effect of Virgin Coconut Oil (VCO) with Lotion On The Skin Moisture among Uremic Patients Undergoing Hemodialysis in Hospital Binjai City, Indonesia

2020 ◽  
Vol 3 (5) ◽  
pp. 560-568
Author(s):  
Siti Saodah ◽  
Imam Budi Putra ◽  
Cholina Trisa S
Keyword(s):  
Kidney Failure ◽  
Intervention Group ◽  
Coconut Oil ◽  
Chronic Kidney Failure ◽  
Control Group ◽  
Virgin Coconut Oil ◽  
Before And After ◽  
Post Test ◽  
Uremic Patients ◽  
Skin Moisture

Chronic kidney failure is a public health problem throughout the world, and the number of sufferers is increasing. Chronic kidney failure can cause clinical symptoms in various body systems, one of which is a disorder in the skin that becomes dry (uremic). This study aimed to examine the effect of Virgin Coconut Oil (VCO) on the skin moisture among uremic patients undergoing hemodialysis. This type of research is a quasi-experiment with pre-test and post-test equivalent control group. The study was conducted at the Regional General Hospital, Dr. RM. Djoelham Binjai. The study population was 80 people, divided into 2 sample groups of 40 people each. The results showed that there was a significant effect of skin moisture on the intervention group before and after being given Virgin Coconut Oil, p = 0.000<0.05; There was a significant effect of skin moisture in the control group before and after lotion (post-test), p = 0.000<0.05. There is no need for special emulsions such as VCO to moisturize the skin in uremic patients undergoing hemodialysis because using ordinary lotions can moisturize the skin. It must be used regularly, twice a day after bathing. The lotion used must also be a lotion that does not contain mercury and chemicals that can harm the skin. To increase the skin's moisture becomes normal, giving lotion is better than VCO because by providing lotion, more skin becomes normal, while using VCO, the skin becomes more oily. It is recommended to health workers (doctors, nurses) to practice correctly and appropriately how to administer Virgin Coconut Oil (VCO) to uremic patients undergoing hemodialysis to be done at home

scholarly journals Study of Breakdown Voltage of Vegetables oil with SiO2 Nanoparticle Additive

2018 ◽  
Vol 12 (1) ◽  
pp. 296
Author(s):  
Muhammad Bin Yahya ◽  
Fatin Amirah Binti Amirrazli
Keyword(s):  
Breakdown Voltage ◽  
Palm Oil ◽  
Coconut Oil ◽  
Mineral Oil ◽  
Partial Discharges ◽  
Transformer Oil ◽  
Different Temperatures ◽  
The Mean ◽  
Insulating Liquid ◽  
Positive Results

<p>This paper investigates the suitability of vegetable oils to replace mineral oil based on its AC breakdown voltage, partial discharge and viscosity. The purpose of the study is to analyze the effect of the nanofluids containing SiO<sub>2</sub> nanoparticle in vegetables oils; namely, Coconut oil and Palm oil. A nanofluid is a fluid containing nanoparticles. However, the precise effects on the electrical properties is still uncertain. For decades, transformers use petroleum-based mineral oil because of its good dielectric properties and cooling capability. Coconut oil (CO) and Palm oil (PO) are thought to be   suitable alternatives to replace mineral oil as transformer oil as they are sustainable and available in plenty as natural resources.  It was obtained in this study that the breakdown voltages of these raw oils have fulfilled the standard specifications of good insulating liquid. However, the addition of SiO<sub>2</sub> did not improve the AC breakdown voltage and viscosity of coconut oil and palm oil at different temperatures. However, the addition of SiO<sub>2</sub> gave positive results in the values of partial discharges in which the presence of the nanoparticles has greatly reduced the mean volume of partial discharges for both coconut oil and palm oil.</p>

scholarly journals EQUIPMENT DESIGN AND TESTING TRANSFER VOLTAGE REFERRING TO IEC 156 STANDARD USING VIRGIN COCONUT OIL (VCO) WITH OIL TEMPERATURE CONDITIONING

2021 ◽  
Vol 2 (2) ◽  
pp. 001-006
Author(s):  
Ansyori Ansyori ◽  
Irsyadi Yani ◽  
Eric Rahman
Keyword(s):  
Breakdown Voltage ◽  
Short Circuit ◽  
Coconut Oil ◽  
Electrical Equipment ◽  
Transformer Oil ◽  
Virgin Coconut Oil ◽  
Electrical Failure ◽  
Environmentally Safe ◽  
Insulating Liquid ◽  
Design And Testing

Isolation is a separator between conductors in electrical equipment that prevents flashover, resulting in a short circuit or electrical failure. Isolation is critical in electrical appliances, exceptionally High Voltage Power Equipment (HVPE), to ensure the safety of circuit breakers, capacitors, and transformers. In addition to being an isolator, the insulating liquid material also serves to cool the heat generated by electrical appliances. Isolator with mineral oil-based transformer has various environmental issues, including non-biodegradability, non-renewability, and rarity. Because it is environmentally safe and extensively used, virgin coconut oil (VCO) is an alternative transformer oil insulation. This study aims to determine the properties of Virgin Coconut Oil (VCO) breakdown voltage using the IEC 156 standard and oil temperature conditioning. According to the test results, the oil breakdown voltage before heating (at room temperature) is 14 kV, which is much below the IEC 156 standard, and the breakdown voltage after heating at 90 ° is 35 kV, and 110 ° is 40 kV, which is even higher than the IEC 156 requirement

scholarly journals Effect of Virgin Coconut Oil in The Treatment of Leucorrhea Caused by Candida Albicans Infection on Pregnant Women at Hospitals in Padang

2021 ◽  
Vol 5 (2) ◽  
pp. 223-232
Author(s):  
Putri Zelfitri Zen ◽  
Desmiwarti Desmiwarti ◽  
Sumaryati Syukur
Keyword(s):  
Candida Albicans ◽  
Reproductive Health ◽  
Pregnant Women ◽  
Intervention Group ◽  
Coconut Oil ◽  
Health Problems ◽  
Vaginal Swab ◽  
Control Group ◽  
Virgin Coconut Oil ◽  
Before And After

Introduction : According to WHO, the prevalence of reproductive health problems in women has reached 33% from all types of diseases. One of the most frequent reproductive health problems is fluor albus. The incidence of candidiasis in pregnant women has doubly increased, especially at third trimester, compared to women who were not pregnant. Candida should be considered a dangerous pathogen in early pregnancy.Objective : This study compared the number of colonies before and after the administration of virgin coconut oil (VCO) to address vaginal discharge caused by C. albicans infection in pregnant women.Material and methods : This is an experimental study on 36 pregnant women. Examination of fluor albus is done by applying vaginal swab before and after administration of 1 tablespoon of VCO orally three times a day dan 5cc of VCO was applied on the vagina and vulva for intervention group, meanwhile the control group was not given anything. Statistical analysis to test the significance is done by using T-test.Results : There was a difference on average number of colonies with higher number of colonies prior to administration (137.17 ± 16.35 vs 122.17 ± 14.42). The average number of colonies at the first examination was 96.06 ± 8.85 colonies and increased at the second examination to 112.89 ± 12.49 colonies.Conclusion : There was an effect of VCO administration on decreasing the number of colonies in the intervention group (p=0.000), while in control group, there was increasing average number of colonies in the second examination (p=0.000).Keywords: Candida albicans, fluor albus, pregnant women, virgin coconut oil

scholarly journals Perbandingan Penyembuhan Ulkus Diabetik dengan Menggunakan Minyak Kelapa Murni, Madu, dan Produk Farmasi

2019 ◽  
Vol 10 (2) ◽  
pp. 231
Author(s):  
Lisa Suarni ◽  
Fitarina Fitarina
Keyword(s):  
Wound Healing ◽  
Wound Care ◽  
Group Analysis ◽  
Coconut Oil ◽  
T Test ◽  
Control Group ◽  
Virgin Coconut Oil ◽  
Diabetic Ulcer ◽  
Score Difference ◽  
Before And After

<p>The incidence rate of Diabetes in Indonesia is increasing every year. In as much as 8.7% of Diabetes sufferer, they suffer from diabetic ulcer, and 1,5% undergo body amputation. This condition reveals that the problem needs special attention to treatment. Some researches show benefit and effectivity of wound care with honey and virgin coconut oil (VCO) at some nursing clinics. Nurses and patients have a complaint on the high cost of pharmacy product for wound care available in the market. This research aims to compare 3 types of preparation for diabetic ulcer care. Those are VCO, honey, and pharmacy product, which the last is for group control. This research uses experimental quasi method to compare wound healing in 3 groups using 3 types of solution: honey, VCO, and pharmacy product. It involves samples, 11 respondents for VCO group, 10 respondents for the honey group, and 10 respondents for pharmacy product which serves as a control group. Analysis using dependent t-test proves that there is a score difference between wound care before and after treatment using all types of preparation. Analysis using independent t-test show that there is no difference in wound healing between using VCO and using pharmacy product, also, there is a difference among honey, VCO, and pharmacy product. This research recommends VCO preparation, which has benefit nearly equal to pharmacy product to be an alternative in wound care for rural residents with middle and lower-income.</p>

scholarly journals Kualitas Virgin Coconut Oil (VCO) yang dibuat pada Metode Pemanasan Bertahap sebagai Minyak Goreng dengan Penambahan Wortel (Daucus carrota L.)

2013 ◽  
Vol 13 (2) ◽  
pp. 102 ◽  
Author(s):  
Megawati Nodjeng ◽  
Feti Fatimah ◽  
Johnly A Rorong
Keyword(s):  
Fatty Acids ◽  
Palm Oil ◽  
Coconut Oil ◽  
Quality Parameters ◽  
Good Effect ◽  
Virgin Coconut Oil ◽  
Cooking Oil ◽  
Significant Difference ◽  
Before And After

Kualitas Virgin Coconut Oil (VCO) yang dibuat pada Metode Pemanasan Bertahap sebagai Minyak Goreng dengan Penambahan Wortel (Daucus carrota L.) ABSTRAK Telah dilakukan penelitian untuk mengetahui kualitas VCO yang diolah dengan metode pemanasan dengan adanya penambahan wortel (VCO-wortel) sebagai minyak goreng serta perbandingan kualitasnnya dengan VCO tanpa penambahan wortel (VCO),  minyak sawit komersial dan minyak kelapa komersial. Parameter kualitas yang akan di uji yaitu  kadar air, asam lemak bebas, bobot jenis dan bilangan peroksida. Hasil penelitian menunjukan VCO-wortel dan minyak kelapa komersial mempunyai  kualitas yang lebih baik pada sebelum serta setelah penggorengan pengujian dilakukan terhadap kentang beku sebanyak tiga kali. Hasil diuji statistik dengan Anova. dibandingkan dengan  VCO dan minyak sawit komersial. Walaupun nilai asam lemak (FFA) bebas dan bobot jenis minyak kelapa komersial lebih baik daripada VCO-wortel  namun tidak ada perbedaan yang signifikan sehingga pembuatan VCO  wortel dapat memberi pengaruh yang baik terhadap kualitas VCO sebagai minyak goreng. Kata Kunci : Asam lemak bebas, Bobot jenis dan bilangan peroksida, VCO-Wortel THE QUALITY OF VIRGIN COCONUT OIL ( VCO ) MADE IN GRADUAL HEATING METHODS AS THE COOKING OIL WITH ADDITION CARROT (Daucus Carrota L.) ABSTRACT Research has been conducted to determine the quality of the VCO is processed by heating method with the addition of carrots ( VCO - carrots ) as well as comparison kualitasnnya cooking oil with VCO without the addition of carrots ( VCO ) , a commercial palm oil and coconut oil commercial. Quality parameters will be tested the moisture content , free fatty acid , peroxide type and weight. The results showed VCO - commercial carrot and coconut oil has a better quality before and after frying tests conducted on frozen potatoes three times . Results were tested statistically by Anova. compared with VCO and commercial palm oil . Although the value of fatty acids ( FFA ) and free weights commercial coconut oils are better than VCO - carrots but no significant difference thus making carrot VCO can give a good effect on the quality of the VCO as a cooking oil . Keywords : Free fatty acids,  Weight and type of peroxide, VCO-Carrots

scholarly journals Effect of Virgin Coconut Oil on Skin Integrity in The Elderly with Incontinence

2020 ◽  
Vol 4 (2) ◽  
pp. 105
Author(s):  
Sukhri Herianto Ritonga ◽  
Nanda Masraini Daulay
Keyword(s):  
Coconut Oil ◽  
The Elderly ◽  
Wilcoxon Test ◽  
Control Group ◽  
Incontinence Episode ◽  
P Value ◽  
Virgin Coconut Oil ◽  
Significant Difference ◽  
Skin Integrity ◽  
Before And After

Intorduction:Incontinence was a problem that often occurs in the elderly and this condition can worsen the elderly situation with the appearance of severe damage to the integrity of the skin,Virgin Coconut Oil (VCO) contains medium chain saturated fat that easily enters deep skin layers and maintains skin elasticity and suppleness. The aim of this study was to determine the effect of virgin coconut oil on skin integrity in the elderly with incontinence.Methods: The design of  research was a quasi-experimental with non equivalent control group design. The population in this study were all elderly who experience incontinence. The sampling technique used was consecutive sampling with a total of 10 people in the experimental group and 10 people in the control group. To assess skin integrity before and after treatment is used was The Ghent Global IAD (GLOBIAD) tool. The using of virgin coconut oil is done every time after the stool incontinence episode and after bathing. Virgin coconut oil has been applied to the damaged skin and also to other vulnerable skin. Results: Based on the Wilcoxon test results obtained p value smaller than 0.05 which is 0.010 so that there was a significant difference in the value of skin integrity before and after the treatment. Conclusions:There was a significant effect on the use of virgin coconut oil on skin integrity in the elderly with incontinence.

Sign in / Sign up

Export Citation Format

Share Document