Article

Mulyatun, Mulyatun and Prameswari, Jedy and Istadi, Istadi and Widayat, Widayat (2022) Production of non-food feedstock based biodiesel using acid-base bifunctional heterogeneous catalysts: A review. FUEL, 314: 122749.

Winarni Agustini, Tri and Farid Ma’ruf, Widodo and Widayat, Widayat and Suzery, Meiny and Hadiyanto, Hadiyanto and Benjakul, Soottawat Application Of Spirulina Platensis On Ice Cream And Soft Cheese With Respect To Their Nutritional And Sensory Perspectives. Jurnal Teknologi, 78 (4-2). pp. 245-251. ISSN 2180–3722

Thesis

TONAPA, Anton and Widayat, Widayat and Silviana, Silviana (2026) ANALISIS SISTEM REDUNDANT CLOTH BAG FILTER PLTU UNTUK PELUANG PENINGKATAN EFISIENSI PEMBANGKIT. Masters thesis, UNIVERSITAS DIPONEGORO.

ADITYA, Adha and Widayat, Widayat and Harmoko, Udi (2026) EFEK LAJU AIR UMPAN TEKANAN RENDAH SEBAGAI PEMANAS UDARA MASUK TURBIN GAS TERHADAP EFISIENSI ENERGI DAN EKSERGI PADA PEMBANGKIT LISTRIK TENAGA GAS DAN UAP DI BEBAN PARSIAL. Masters thesis, UNIVERSITAS DIPONEGORO.

Fonataba, Alcbram Javan’ S and Widayat, Widayat (2025) PEMBUATAN BIODIESEL DARI MINYAK GORENG CURAH MENGGUNAKAN KATALIS BASA DARI ABU DOLOMIT (CaMg(Co 3)2). Masters thesis, Universitas Diponegoro.

Mulyatun, Mulyatun and Istadi, Istadi and Widayat, Widayat (2025) PREPARASI ACID-BASE BIFUNCTIONAL CATALYSTS BERBASIS CaO UNTUK PRODUKSI BIODIESEL DARI MINYAK GORENG BEKAS. Doctoral thesis, Universitas Diponegoro.

NUGRAHA, Rizcky Rahadian and Silviana, Silviana and Widayat, Widayat (2025) SIMULASI PENGARUH CO-FIRING HIDROGEN DENGAN GAS ALAM TERHADAP EFISIENSI DAN EMISI CO2 PADA TURBIN GAS DI PLTGU CILEGON. Masters thesis, UNIVERSITAS DIPONEGORO.

SAUDALE, JEANETTE MUTIARA PAULA and Widayat, Widayat (2025) STUDI KINETIKA PRODUKSI BIODIESEL DARI MINYAK KELAPA MELALUI PROSES ESTERIFIKASI-TRANSESTERIFIKASI MENGGUNAKAN KATALIS BIFUNGSIONAL CaO/SiO2. Masters thesis, Universitas Diponegoro.

AL MUHAJIR, Faizur and Widayat, Widayat and Suedy, Sri Widodo Agung (2024) ANALISA KINERJA DESALINASI REVERSE OSMOSIS PADA SWRO & BWRO PT. BLACK BEAR RESOURCES INDONESIA. Masters thesis, UNIVERSITAS DIPONEGORO.

ARTA, Mochamad Zainudin Ade and Widayat, Widayat and Muchammad, Muchammad (2024) ANALISIS CO-FIRING BAHAN BAKAR JUMPUTAN PADAT (BBJP) DAN BATUBARA TERHADAP PERFORMA PADA PULVERIZED COAL BOILER. Masters thesis, UNIVERSITAS DIPONEGORO.

PRASETYO, Ahmad Wisnu and Widayat, Widayat and Utomo, M.S.K. Tony Suryo (2024) ANALISIS EKSERGI PADA UNIT PENYEDIAAN STEAM DI PLANT GAS PROCESSING PT.XYZ. Masters thesis, UNIVERSITAS DIPONEGORO.

SUGIARTO, Heru and Widayat, Widayat and Christwardana, Marcelinus (2024) ANALISIS ENERGI DAN GAS BUANG PADA SISTEM SUAR DI FASILITAS GAS ONSHORE. Masters thesis, UNIVERSITAS DIPONEGORO.

PRAKOSO, Satyo Jati and Widayat, Widayat and Suedy, Sri Widodo Agung (2024) DAMPAK PENURUNAN NILAI KALORI BATUBARA PADA EFISIENSI BOILER DAN BIAYA BAHAN BAKAR PADA PLTU PAITON UNIT 3 PROBOLINGGO JAWA TIMUR. Masters thesis, UNIVERSITAS DIPONEGORO.

BUNGA, Lime Lolo and Widayat, Widayat and Saptadi, Singgih (2024) EVALUASI KONSUMSI ENERGI SPESIFIK PADA PROSES DEMINERALISASI AIR UMPAN BOILER DENGAN PROSES REVERSE OSMOSIS DI INDUSTRI PEMBANGKIT. Masters thesis, UNIVERSITAS DIPONEGORO.

YOHANES, A.R. and Widayat, Widayat and Windarta, Jaka (2024) EVALUASI PERFORMANCE TEST PADA PLTU PELABUHAN RATU UNIT 2 DENGAN PI VISION. Masters thesis, UNIVERSITAS DIPONEGORO.

AMRULLOH, Riva and Widayat, Widayat and Warsito, Budi (2024) PREDIKSI KINERJA DAN EMISI MESIN DIESEL BERBAHAN BAKAR BIODIESEL DENGAN MENGGUNAKAN ARTIFICIAL NEURAL NETWORK (ANN) ALGORITMA RESILIENT BACKPROPAGATION (RPROP). Masters thesis, UNIVERSITAS DIPONEGORO.

MARGAWADI, Kenanga Apriliana and Widayat, Widayat and Suedy, Sri Widodo Agung (2024) SIMULASI CO-FIRING DENGAN CAMPURAN LOW RANGE COAL DAN MEDIUM RANGE COAL TERHADAP KINERJA PEMBANGKIT LISTRIK TENAGA UAP KAPASITAS 615 MW. Masters thesis, UNIVERSITAS DIPONEGORO.

SUSSATRIO, Hardito and Hadiyanto, Hadiyanto and Widayat, Widayat (2023) ANALISIS AMINE TREATMENT PROCESS TERHADAP PENGEMBANGAN FASILITAS PRODUKSI SUMUR MINYAK DAN GAS LAPANGAN PT. X. Masters thesis, UNIVERSITAS DIPONEGORO.

PRAEVIA, Muhammad Farizan and Widayat, Widayat and Kusdiyantini, Endang (2023) PEMODELAN GASIFIKASI LIMBAH TANDAN KOSONG KELAPA SAWIT SEBAGAI POTENSI ENERGI BARU TERBARUKAN. Masters thesis, UNIVERSITAS DIPONEGORO.

DWITAMA, Akbar and Widayat, Widayat and Utomo, M.S.K. Tony Suryo (2023) PENGARUH JUMLAH PLUGGING TUBE HIGH PRESSURE FEEDWATER HEATER TERHADAP EFISIENSI PLTU 400 MW. Masters thesis, UNIVERSITAS DIPONEGORO.

HASAN, Muhammad Syukri and Widayat, Widayat and Suedy, Sri Widodo Agung (2023) SIMULASI PROSES PIROLISIS LIMBAH KELAPA MENGGUNAKAN PERANGKAT LUNAK ASPEN PLUS. Masters thesis, UNIVERSITAS DIPONEGORO.

FITRIKA, Gema Khusnul and Widayat, Widayat and Fajar TK, Berkah (2022) EFEK PENGGUNAAN B30 PADA DUMP TRUCK OPERASIONAL TAMBANG BATUBARA. Masters thesis, School of Postgraduate Studies.

ARAHIM, Andry Anggoro and Widayat, Widayat and Hadiyanto, Hadiyanto (2020) PRODUKSI BAHAN BAKAR CAIR DARI LIMBAH BAN KENDARAAN BERMOTOR DENGAN PROSES PIROLISIS. Masters thesis, School of Postgraduate Studies.

Other

Cahyono, B. and Fatihatul Hasanah, Eli and Judiono, Judiono and Suzery, Meiny and Widayat, Widayat Analysis of piperine content in cabe jawa extracts (Piper retrofractum Vahl) using UV spectrophotometry and HPLC. Peer Review dll. (Unpublished)

Widayat, Widayat and Cahyono, Bambang and Satriadi, H and Munfarida, S Antioxidant activity and total phenolic content in Red Ginger (Zingiber officinale) based drinks. Peer Review dll. (Unpublished)

Winarni Agustini, Tri and Farid Ma’ruf, Widodo and Widayat, Widayat and Suzery, Meiny and Hadiyanto, Hadiyanto and Benjakul, Soottawat Application Of Spirulina Platensis On Ice Cream And Soft Cheese With Respect To Their Nutritional And Sensory Perspectives. Peer Review dll. (Unpublished)

Widayat, Widayat and Cahyono, Bambang and Hadiyanto, Hadiyanto and Ngadiwiyana, Ngadiwiyana Diversifikasi Minyak Cengkeh Menjadi Fine Chemical. Peer Review dll. (Unpublished)

Widayat, Widayat and Cahyono, Bambang and Hadiyanto, Hadiyanto and Ngadiwiyana, Ngadiwiyana Improvement of Clove Oil Quality by Using Adsorption-distillation Process. Peer Review dll. (Unpublished)

Widayat, Widayat and Cahyono, Bambang and Hadiyanto, Hadiyanto and Ngadiwiyana, Ngadiwiyana Optimization in Eugenol Production from Clove Oil with Saponification – Neutralization Process by using Response Surface Methods. Peer Review dll. (Unpublished)

Widayat, Widayat and Hadiyanto, Hadiyanto and Cahyono, B. and Ngadiwiyana, Ngadiwiyana Optimization of Eugenol Extraction from Clove Oil using Response Surface Methodology. Peer Review dll. (Unpublished)

Widayat, Widayat and Cahyono, Bambang and Ngadiwiyana, Ngadiwiyana Rancang Bangun Dan Uji Alat Proses Peningkatan Minyak Cengkeh Pada Klaster Minyak Atsiri Kabupaten Batang. Peer Review dll. (Unpublished)

Widayat, Widayat and Winarni Agustini, Tri and Suzery, Meiny and Ni’matullah Al-Baarri, Ahmad and Rahmi Putri, Sylvia and Kurdianto, Kurdianto Real Time-Polymerase Chain Reaction (RT-PCR) sebagai Alat Deteksi DNA Babi dalam Beberapa Produk Non-Pangan. Peer Review dll. (Unpublished)

Cahyono, B. and Dewi Maduwu, Ratna and Widayat, Widayat and Suzery, Meiny Regenerated silica gel as stationary phase on vacuum column chromatography to purify temulawak’s extracts. Peer Review dll. (Unpublished)

Widayat, Widayat and Sofiati Dita, Ayu and Cahyono, Bambang and Hantoro, Satriadi Study of Rendement of Red Ginger Essential Oil from Red Ginger Waste by Using Steam Distillation Process. Peer Review dll. (Unpublished)