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PERBANDINGAN PENGGUNAAN DAYA LISTRIK MOTOR INDUKSI SEBAGAI PENGGERAK KOMPRESOR PADA SIANG HARI DAN MALAM HARI PADA INDUSTRI ES BALOK Liem Ek Bien, Liem Ek Bien; Peter, Peter
Jurnal Teknik Elektro Vol 4, No 2 (2005)
Publisher : Jurnal Teknik Elektro

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Abstract

In ice block industry, usage of electrical power for induction motor as prime mover ofcompressor is very high. Level of usage of electricity at ice block industry base on change ofrefrigeration media temperature. Referring to the mentioned, hence mass flow rate ofrefrigerant circulating in system, refrigeration effect per kilogram, comparison ofcompression of compressor, refrigeration capacities and mechanic energy which must beyielded by the compressor to circulate the refrigerant determining transfer of heat systemperformance as work principle of cooler machine can be determined. This Final Assignmentpresent an economical technique of usage of electrical power of induction motor that is byproduct the ice block when of media refrigeration temperature reach the lowest level that isnight time with method comparison of usage of electrical power of induction motor as primemover of compressor at ice block industry which giving result the lowest usage of electricalpower. Case study done at ice block factory that is PT. KARAHARJA TIRTATAMA.Key words: Induction Motor, Refrigeneration Temperature, Electrical Power
ANALISIS KEBANGKRUTAN PERUSAHAAN MELALUI PERBANDINGAN MODEL ALTMAN Z-SCORE, MODEL SPRINGATE’S, DAN MODEL FULMER PADA INDUSTRI SEMEN DI INDONESIA Peter Peter; Herlina Herlina; Jessica Wiraatmaja
Ultima Management : Jurnal Ilmu Manajemen Vol 13 No 2 (2021): Ultima Management : Jurnal Ilmu Manajemen
Publisher : Universitas Multimedia Nusantara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31937/manajemen.v13i2.2313

Abstract

Abstract- The aims of this research is to determine the difference between the rate of bankrupcy Altman Z- Score Model, Springate’s Model, and Fulmer Model, as well as measures which model is most accurate in predicting bankruptcy at cement companies that listed at Indonesia Stock Exchange period 2014 – 2018 (PT. Indocement Tunggal Prakasa Tbk, PT. Semen Baturaja Tbk, PT. Holcim Indonesia Tbk, and PT. Semen Indonesia Tbk). The Collection of the data that we used is documentation, that we collecting data of financial reports from 2014- 2018 periods. In this research, ratio analysis and regression were used for data analysis. Result of this research showed that there were differences of bankrupcy prediction based on the Altman Z- Score Model, Springate’s Model, and Fulmer Model. The highest level of accuracy is the model of Fulmer. Keywords: Altman Z- Score Model; Bankruptcy; Fulmer Model; Springate’s Model
Analisis pengaruh profitabilitas dan hutang terhadap struktur modal perusahaan Peter, Peter; Tanadi, Herlina
JURNAL MANAJEMEN Vol 12, No 1 (2020)
Publisher : Faculty of Economics and Business Mulawarman University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (274.891 KB) | DOI: 10.29264/jmmn.v12i1.6603

Abstract

Perusahaan adalah sebuah badan usaha yang memiliki tujuan untuk mendapatkan keuntungan bagi pemiliknya. Perusahaan mempunyai permasalahan keuangan dalam mencapai tujuannya, dalam hal pembiayaan kegiatan operasional maupun pembiayaan investasinya. Keputusan pembiayaan operasional perusahaan akan melahirkan kebijakan struktur modal yang terkait dengan berbagai jenis sumber dana yang dipakai oleh perusahaan.  Pengelolaan struktur modal terkait dengan biaya modal dari sumber dana yang dipakai oleh perusahaan. Komposisi modal perusahaan terkait dengan persentase masing-masing sumber dana, dimana setiap sumber dana memiliki biaya tertentu. Penelitian ini bertujuan untuk menganalisis hubungan di antara profitabilitas, hutang dan struktur modal  perusahaan.  Data penelitian ini di dapatkan dari Indonesia Capital Market Directory (ICMD), yang merupakan data perusahaan manufaktur sektor barang konsumsi yang terdaftar di Bursa Efek Indonesia. Metode analisis data yang digunakan adalah dengan menggunakan metode Two Stage Least Square. Hasil penelitian menunjukkan bahwa profitabilitas, hutang dan struktur modal semuanya saling mempengaruhi antara satu dengan yang lainnya.
Sintesis Coating Copper-Cobalt Oksida Pada Substrat Aluminium Melalui Proses Sol Gel Sebagai Solar Selective Absorber : Pengaruh Rasio Molar Cu/Co Dan Ketebalan Coating Peter Peter; Amun Amri; Ahmad Fadli
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 4, No 1 (2017): Wisuda Februari Tahun 2017
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

Solar selective absorber (SSA) is a layer which is selective to absorb solar radiation and convert it into maximum heat energy. The purpose of this research is to synthesize the SSA based on copper nitrate and cobalt nitrate precursor, to determine the influence of molar ratio and dipping times number to absorptance, and emittance of SSA using the sol gel dip coating method.. Aluminum plates with size of 2x4cm2 were cleaned using phosphoric acid 10% by volume at temperature ±50oC for 10 minutes and then washed again with distilled water. Sol precursor was prepared by mixing copper nitrate and cobalt nitrate in ethanol solvent and the addition of propionic acid as catalyst and complexing agent. This solution was stirred at room temperature for 2 hours. The coatings were synthesized by varying molar ratio of [Cu]/[Co] of 0,25; 1; and 4 with the number of dipping 1-10 times. The coatings then were annealed at temperature of 550oC for 1 hour. Reflectance spectra in the UV-Vis-NIR show that an increasing number of dipping and decreasing in the molar ratio of [Cu]/[Co] improved the absorptance (). SSA layer with best absorptance i.e. 84,788% is synthesized using precursors with a molar ratio of 4 at 10 dipping times, and emittance (ε) generated amount 8,999%.Keywords : aluminum, dip coating, solar selective absorber.