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EFFECT OF COMPRESSOR INLET TEMPERATURE ON THERMAL EFFICIENCY ROLLS ROYCE RB211 GAS GENERATOR IN COMBINED CYCLE POWER PLANT Yulistio, Nanang; Wahyudi, Muhammad Prihadi Eko; Fitriyah, Qoriatul
Jurnal Rekayasa Mesin Vol. 15 No. 1 (2024)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/jrm.v15i1.1505

Abstract

The combined cycle power plant must operate 24 hours without stopping so that in operation at any time an increase in the temperature of the gas generator RB211 can occur. The RB211 gas generator works well when the ambient temperature is low. The X combine cycle power plant uses a chiller to lower the inlet air temperature so that the air entering the compressor will be lower. The purpose of this study was to analyze and conclude the effect of the compressor inlet temperature on the thermal efficiency of the Rolls Royce RB211 gas generator in the combined cycle power plant. Data was collected by requesting historical data on September 5-11, 2022 in the central control room. The method used in this study is simple linear regression analysis because it only involves two variables. The independent variable is the inlet temperature of the compressor and the dependent variable is the thermal efficiency of the gas generator. It is known that the highest efficiency is at a temperature of 292,94 kelvin with a thermal efficiency value of 36,87% while the lowest efficiency is at a temperature of 301,89 kelvin with a thermal efficiency value of 35,61%. The regression analysis equation is Ŷ = 0,60665231-0,00082223X so the hypothesis results obtained through the significant F test with F table is that there is a significant effect between the compressor inlet temperature on the thermal efficiency of the gas generator.
Pelakor Phenomenon in the Digital Era: Analysis of the “Gayung Love Pink” Case and the Dynamics of Infidelity in Personal and Professional Environments Fitriyah, Qoriatul; Wahyudi, Muhammad Prihadi Eko
Journal of Urban Sociology Volume 8 No 1 Tahun 2025
Publisher : Universitas Wijaya Kusuma Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30742/jus.v1i1.4327

Abstract

This research explores the 'pelakor' phenomenon, a term that describes women who have affairs with married men, in terms of Indonesian urban contemporary. This study focused on the downfall of social and relational norms, both in professional and personal space. Qualitative analyses were held between January and March 2025, with social media and news reports, interviews, and study literature. This research exposes the repeated norm-breaking in the school, workplace, and friendship environments. The cases exposed in this study show that individuals are purposely pursuing extramarital affairs due to financial motives and related career advancement. The findings show the deeper trend of exploitation of marriage and women's friendships to pursue affairs through planned emotional manipulations.Keywords: pelakor, extramarital affair,  infidelity, social media, tiktok, urban society, social boundaries
LOAD FORECASTING METHOD WITH DKL 3.01 Fitriyah, Qoriatul
Technologic Vol 2 No 1 (2011): Technologic
Publisher : LPPM Politeknik Astra

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

DKL 3.01 methods is using econometric approach combined with data analysis of electricity sales and economic growth which is represented by Product Domestic Regional Brutto (PDRB).
KOPER PORTABLE BERBASIS SEL SURYA SEBAGAI SOLUSI TANGGAP BENCANA Fitriyah, Qoriatul; Saragi, Elsa Puspitasari; Nugroho, Berto Yusuf; DanatyoSetyawan, Albertus Agung; PrihadiEko W, M
Eksergi Vol. 18 No. 1 (2022): JANUARI 2022
Publisher : Politeknik Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (673.119 KB) | DOI: 10.32497/eksergi.v18i1.3219

Abstract

Alat ini merupakan pembangkit listrik tenaga surya skala mikro yang diperuntukkan sebagai sumber listrik sementara di daerah yang terkena bencana alam di Indonesia yang bersifat portable, dan dilengkapi dengan peralatan dasar seperti port charger dan lampu LED. Material yang digunakan untuk PV adalah aluminium dengan pendingin keramik yang didesain berbentuk koper sehingga kuat, tahan air dan api.
EFFECT OF COMPRESSOR INLET TEMPERATURE ON THERMAL EFFICIENCY ROLLS ROYCE RB211 GAS GENERATOR IN COMBINED CYCLE POWER PLANT Yulistio, Nanang; Wahyudi, Muhammad Prihadi Eko; Fitriyah, Qoriatul
Jurnal Rekayasa Mesin Vol. 15 No. 1 (2024)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/jrm.v15i1.1505

Abstract

The combined cycle power plant must operate 24 hours without stopping so that in operation at any time an increase in the temperature of the gas generator RB211 can occur. The RB211 gas generator works well when the ambient temperature is low. The X combine cycle power plant uses a chiller to lower the inlet air temperature so that the air entering the compressor will be lower. The purpose of this study was to analyze and conclude the effect of the compressor inlet temperature on the thermal efficiency of the Rolls Royce RB211 gas generator in the combined cycle power plant. Data was collected by requesting historical data on September 5-11, 2022 in the central control room. The method used in this study is simple linear regression analysis because it only involves two variables. The independent variable is the inlet temperature of the compressor and the dependent variable is the thermal efficiency of the gas generator. It is known that the highest efficiency is at a temperature of 292,94 kelvin with a thermal efficiency value of 36,87% while the lowest efficiency is at a temperature of 301,89 kelvin with a thermal efficiency value of 35,61%. The regression analysis equation is Ŷ = 0,60665231-0,00082223X so the hypothesis results obtained through the significant F test with F table is that there is a significant effect between the compressor inlet temperature on the thermal efficiency of the gas generator.
Energy Box Simulator Fitriyah, Qoriatul; Sebayang, Irma Sherina; Nugroho, Berto Yusuf; Setyawan, Albertus Agung Danatyo; Wahyudi, Muhammad Prihadi Eko
JURNAL INTEGRASI Vol. 16 No. 1 (2024): Jurnal Integrasi - April 2024
Publisher : Pusat Penelitian dan Pengabdian Masyarakat Politeknik Negeri Batam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30871/ji.v16i1.3461

Abstract

This research is focused on making the trainer kit in the form of a device for measuring and calculating energy with an interactive practicum mode that is fun for students as part of the Thermodynamics course. This device will be equipped with a timer for measuring time, electrical mass measurement and a length calculator for measuring kinetic energy and potential energy using data on mass, velocity and height of an object. The data obtained from the measurement results will then be compared with the results of calculations on an application-based simulator in the visual basic .exe program.