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Analysis Inventory of Consumable Goods Using Min-Max Method at Universitas Pertamina Irfan Romadhon, Nurma; Sukarno, Iwan; Lusiani, Mirna
Journal of Emerging Supply Chain, Clean Energy, and Process Engineering Vol 1 No 1 (2022): Journal of Emerging Supply Chain, Clean Energy, and Process Engineering
Publisher : Universitas Pertamina

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.57102/jescee.v1i1.6

Abstract

Inventory control is one of the problems faced by Universitas Pertamina. In the management of inventory, especially Consumable items, Universitas Pertamina does not determine the limited value of inventory that must be stored. Thus, this causes asset management difficult to determine the ordering quantity for each item and how many items should be stored in the warehouse. The purpose of this study is to recommend policies related to the value of safety stock, minimum stock, and maximum stock for each consumable item. The method used is the Min-Max Stock method. In addition, the ABC classification method is also used to classify items based on the level of usage. The results of this study are in the form of value limits for safety stock, minimum stock, and maximum stock. Then the priority item classification must be managed. Based on the calculation results, it is found that by using the min-max method, Universitas Pertamina can save up to 30% of inventory costs compared to the current policy.
Inventory Control Analysis of Flowline Pipe (Case Study: PT. Pertamina Hulu Rokan Field Limau) Hevira Putri , Nathasya; Sukarno, Iwan; Dewabharata, Anindhita
Journal of Emerging Supply Chain, Clean Energy, and Process Engineering Vol 1 No 2 (2022): Journal of Emerging Supply Chain, Clean Energy, and Process Engineering
Publisher : Universitas Pertamina

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.57102/jescee.v1i2.21

Abstract

Flowline is a means of distributing oil and natural gas from drilling wells to the separation point or collection station. The need for this flowline is fast moving but the problem that often occurs in companies is that the flowline needs cannot be fulfilled. Stock out on the 4-inch flowline pipe can cause a loss of production opportunity. To overcome the stock out, it is necessary to do proper inventory control. Forecasting the demand for the 4-inch flowline pipe using the ARIMA model to determine the amount of demand in the future period. After getting the number of requests, the requests are analyzed using the ADI-CV technique to see the demand pattern. The characteristics of the demand pattern are used to determine the appropriate type of inventory control. The result of the ADI value is 1 and the CV value is 0.04, so the demand pattern is smooth moving and uses the continuous review method. The continuous review method resulted in a total cost of Rp. 17,780,325,626, while the actual cost was Rp. 18,247,993,200. These results indicate that with inventory control, the proposed condition using the continuous review method can reduce inventory costs by Rp. 467,667,574 compared to actual conditions, and there is a saving of 2.56%.
Wind Turbine Production Planning in Logistic Systems Ruswandi, Nanda; Febriyani Hutasuhut, Dhian; Putri Fadillah, May; Ievana Febrianty Rumalutur, Yizri; Sukarno, Iwan; Inca Liperda, Rahmad
Journal of Emerging Supply Chain, Clean Energy, and Process Engineering Vol 1 No 2 (2022): Journal of Emerging Supply Chain, Clean Energy, and Process Engineering
Publisher : Universitas Pertamina

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.57102/jescee.v1i2.22

Abstract

Production planning is very important in an industrial company as well as planning in Logistics. The purpose of implementing production planning in a company is to minimize costs incurred and maximize profits. This research is practicum-based research in the laboratory with the object of observation in the form of a wind turbine toy. This object will be processed through 5 stages in the production process starting from forecasting, RCCP (Rough Cut Capacity Planning), MRP (Material Requirement Planning), CRP (Capacity Requirement Planning), and Line Balancing. forecasting results are carried out with 12 future periods producing 232,888 units, RCCP balance between available capacity and required capacity, MRP using the lot sizing technique obtains the cheapest cost per unit Rp.142,179 with the LTC (Least Total Cost) method when compared to other MRP methods, namely LFL (Lot for Lot), POQ (Period Order Quantity), PPB (Part Period Balancing), EOQ (Economic Order Quantity), and LUC (Least Unit Cost), CRP by calculating the number of machines and working time, and line balancing which results in a decrease in track ineffectiveness from 42% to 22% and Smoothness Index from 476,662 to 189,703.
Exploring Halal Awareness and Its Impact on Skincare Purchase Intentions: A Structural Equation Modelling Approach Vikaliana, Resista; Sukarno, Iwan; Raja Mohd Rasi, Raja Zuraidah
IKONOMIKA Vol 9, No 1 (2024)
Publisher : Universitas Islam Negeri Raden Intan Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24042/ijebi.v9i1.21091

Abstract

Indonesia, a nation with the highest number of Muslims, ranks second globally in terms of the consumption of halal cosmetics, following India. There is a growing worry about halal items. This study will examine the impact of halal awareness on intention to purchase skincare products. This study uses a Structural Equation Modelling technique using SMART PLS tools to analyze the factors driving purchase interest. These components include Religious beliefs, Self-identity, Halal Certification, and Halal Knowledge. The data collection in this study was conducted using a questionnaire, employing random sampling techniques to gather 57 samples. The findings of this study indicate that religion and self-identity do not substantially impact halal awareness. Conversely, the certification and understanding of halal practices substantially impact the awareness of halal products, including religious beliefs, self-identity, halal certification, and halal knowledge, which in turn has a major influence on the intention to acquire such products.
PEMBERDAYAAN DESA BARENGKOK: MENINGKATKAN PENGELOLAAN SAMPAH ORGANIK DAN PEMANFAATAN PUPUK KOMPOS Sukarno, Iwan; Amelia, Afifah; Indrawan, Ahsan P.; Y, Iman Nafiz.; Ramli, Moh. Agus S.; P., Rangga
Jurnal Abdi Insani Vol 11 No 4 (2024): Jurnal Abdi Insani
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/abdiinsani.v11i4.2112

Abstract

The primary source of income for the residents of Barengkok is derived from agricultural and horticultural activities. One of the current challenges facing farmers is the persistent use of chemical fertilizers, which undoubtedly has long-term environmental consequences. The objective of this community service activity in Barengkok Village is to enhance community awareness regarding organic waste management and to provide economic and environmental benefits derived from the utilisation of compost. The activity was conducted through training in the production of organic compost, beginning with the sorting of waste materials, the preparation of the compost, and the dissemination of information regarding the benefits of compost. The methodology employed comprised several stages, including the shredding of materials, the adjustment of the carbon-to-nitrogen ratio, the fermentation of the compost with bioactivators, and the periodic turning of the compost pile. The activity was concluded with a session of socialization and training on the production of compost. It is anticipated that the results of this activity will have an impact on the community's understanding of more effective waste management practices.
Pengaplikasian Metode Peramalan untuk Mengoptimalkan Perencanaan Persediaan Suku Cadang (Studi Kasus: Suku Cadang Contactor di PT. Semen Padang) Anshari, Reza Kharisma; Sukarno, Iwan
Jurnal Ilmiah Universitas Batanghari Jambi Vol 24, No 2 (2024): Juli
Publisher : Universitas Batanghari Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33087/jiubj.v24i2.4898

Abstract

Based on data in-out of spare parts at PT. Semen Padang, contactor type is one of the electrical spare part that have a high throughput rate compare the other sparepart type. In addition, contactors also have a high price and also needs to be stored with special treatment in the spare part warehouse. Furthermore, currently the company has not used a specific methods in determine the material requirement planning for the spare parts. Therefore in this study it is purposed to use a forecasting methods to determine the contactor requirement planning to avoid losses. Quantitaive forecasting methods was used in this study such as quadratic, cyclical, and cyclical methods. The best forecasting method is determined based on the smallest error value of the four compared methods. Contactor requirement planning is carried out by forcasting for the next 24 periods. Based on the results, it is found the best methods that has the smalles MAPE error (45%) is the Cyclic Method. The forecasting results obtained show the similarity of the trend with the historical data used, so that this forecasting method can be considered for use in material requirement planning of spare parts specially for contactor types at PT. Semen Padang.
Co-Authors Ade Asriani Aisyah Adelady Rozha Amarilies, Harummi Sekar Amelia, Afifah Ananda P. Dermawan Angel Olivia Benedikta Anshari, Reza Kharisma Atthoriq, Muhammad Fajril Baliwangi, Lahar Barges, Zetira Christ M. Purba Dewabharata, Anindhita Dharmapatni, Made Ranjani Dianisa, Pramesti Adwinda Dicka Hidayat Fatahayu, Nafi Riska Febriyani Hutasuhut, Dhian Ferani Eva Zulvia Gita Kurnia Harummi Amarilies Hegel Johanes Herlina, Rohma Hevira Putri , Nathasya Ievana Febrianty Rumalutur, Yizri Inca Liperda, Rahmad Indrawan, Ahsan P. Intan R. Silalahi Irfan Romadhon, Nurma Iskandar, Yelita Anggiane Ismi Nur Sabani Juan S. Y. Simanjuntak Kurnia, Gita Layman, Pauline Nancy Deslin Liperda, Rahmad Inca Lusiani, Mirna M. Welano Kharisma Mega Rizkah Sudiar Mohamad Reynaldo Haykal Arshal Muhammad Al Furqan Nulkarim Mutia Zahvira Nabila Ananda Yusfa Nabila Asyifa Cabriani Lestari Nanda Ruswandi Nia Azi Fadjri Nursabila, Nursabila Nursechafia Nursechafia P., Rangga Pratami, Putri Monika Putri Fadillah, May Rachmad Inca Liperda Rahesya P. Syailendra Raina Fridayanti Raja Mohd Rasi, Raja Zuraidah Ramadhan Setiyani, Denok Ramli, Moh. Agus S. Reza Kharisma Anshari Rumalutur, Yizri Ievana Febrianty Ruswandi, Nanda Sandi, Evelyn Sari, Alifiana Permata Septianinda Purnamasari Suri, Faras Karningtia Syafrizal Ambiya Tansy, Argya Fauziah Tazkiya, Osel Nur ` Vikaliana, Resista Wahyu Kunto Wibowo Waluya, Fuad Najib Wibowo, Wahyu Kunto Y, Iman Nafiz. Yaqin, Syaiful Haqqul Yelita Anggiane Iskandar Yenda, Natasha Utami Syave Yordan, Vainzela Dwi Amanda Zahra Zayyina Yustisia Arif (Universitas Pertamina)