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All Journal HAYATI Journal of Biosciences Lensa: Kajian Kebahasaan, Kesusastraan, dan Budaya MEDIA ELEKTRIKA Traksi : Majalah Ilmiah Teknik Mesin Reaktor International Journal of Science and Engineering (IJSE) International Journal of Renewable Energy Development Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan METANA Jurnal Ilmu Lingkungan Pedagogi: Jurnal Ilmu Pendidikan Prosiding Seminar Biologi JURNAL TEKNOLOGI KIMIA DAN INDUSTRI LITE: Jurnal Bahasa, Sastra, dan Budaya Prosiding Seminar Nasional Sains Dan Teknologi Fakultas Teknik Jurnal Pendidikan IPA Indonesia Waste Technology Agrointek Jurnal technoscientia Bulletin of Chemical Reaction Engineering & Catalysis Seminar Nasional Teknik Kimia Kejuangan Journal of Engineering and Technological Sciences Majalah Ilmiah MOMENTUM Emerging Science Journal Jurnal Aplikasi Teknologi Pangan Indonesia Journal of Halal Culturalistics: Journal of Cultural, Literary, and Linguistic Studies Food Science and Technology Journal (Foodscitech) Jurnal Mekanova : Mekanikal, Inovasi dan Teknologi ASEAN Journal of Chemical Engineering Indonesian Journal of Electrical Engineering and Computer Science Jurnal Pasopati : Pengabdian Masyarakat dan Inovasi Pengembangan Teknologi JURNAL TEKNOLOGI TECHNOSCIENTIA Jurnal Litbang Kota Pekalongan Jurnal Energi Baru dan Terbarukan Journal of Bioresources and Environmental Sciences METAL : Jurnal Sistem Mekanik dan Termal Jurnal Profesi Insinyur Indonesia Journal of Emerging Science and Engineering Journal of Bioresources and Environmental Sciences International Journal of Renewable Energy Development Bulletin of Chemical Reaction Engineering & Catalysis Jurnal Sains Materi Indonesia
H Hadiyanto
Center Of Biomass And Renewable Energy (C-BIORE), Department Of Chemical Engineering, Diponegoro University, Jl Prof. H. Soedarto, SH, Tembalang, Semarang 50275 Department Of Chemical Engineering, Diponegoro University, Jl Prof. H. Soedarto, SH, Temb
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Potency of Microalgae as Biodiesel Source in Indonesia Hadiyanto, Hadiyanto; Widayat, Widayat; Cahyo Kumoro, Andri
International Journal of Renewable Energy Development Vol 1, No 1 (2012): February 2012
Publisher : Center of Biomass & Renewable Energy, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/ijred.1.1.23-27

Abstract

Within 20 years, Indonesia should find another energy alternative to substitutecurrent fossil oil. Current use of renewable energy is only 5% and need to be improved up to 17%of our energy mix program. Even though, most of the area in Indonesia is covered by sea, howeverthe utilization of microalgae as biofuel production is still limited. The biodiesel from currentsources (Jatropha, palm oil, and sorghum) is still not able to cover all the needs if the fossil oilcannot be explored anymore. In this paper, the potency of microalgae in Indonesia was analysed asthe new potential of energy (biodiesel) sources.
Modeling and PSO optimization of Humidifier-Dehumidifier desalination Ahmadi, Mohammad Hossein; Afshar, Mohammad Ali; Naseri, Ali; Bidi, Mokhtar; Hadiyanto, H.
International Journal of Renewable Energy Development Vol 7, No 1 (2018): February 2018
Publisher : Center of Biomass & Renewable Energy, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/ijred.7.1.59-64

Abstract

The aim of this study is modeling a solar-air heater humidification-dehumidification unit with applying particle swarm optimization to find out  the maximum gained output ratio with respect to the mass flow rate of water and air entering humidifier, mass flow rate of cooling water entering dehumidifier, width and length of solar air heater and terminal temperature difference (TTD) of dehumidifier representing temperature difference of inlet cooling water and saturated air to dehumidifier as its decision variable. A sensitivity analysis, furthermore, is performed to distinguish the effect of operating parameters including mass flow rate and streams’ temperature. The results showed that the optimum productivity decreases by decreasing the ratio of mass flow rate of water entering humidifier to air ones.Article History: Received: July 12th 2017; Revised: December 15th 2017; Accepted: 2nd February 2018; Available onlineHow to Cite This Article: Afshar, M.A., Naseri, A., Bidi, M., Ahmadi, M.H. and Hadiyanto, H. (2018) Modeling and PSO Optimization of Humidifier-Dehumidifier Desalination. International Journal of Renewable Energy Development, 7(1),59-64.https://doi.org/10.14710/ijred.7.1.59-64
Comparative analysis between pyrolysis products of Spirulina platensis biomass and its residues Jamilatun, Siti; Budhijanto, B.; Rochmadi, R.; Yuliestyan, Avido; Hadiyanto, H.; Budiman, Arief
International Journal of Renewable Energy Development Vol 8, No 2 (2019): July 2019
Publisher : Center of Biomass & Renewable Energy, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/ijred.8.2.133-140

Abstract

Today’s needs of energy are yet globally dominated by fossil energy sources, causing the depletion of non-renewable energy. Alternatively, a potential substitute is the energy of biomass. Spirulina platensis (SP) is a microalgae biomass which, if extracted, will produce solid waste called Spirulina platensis residue (SPR). This research explores the pyrolysis product, produced within the range of 300 – 600 ºC, from the pyrolysis of SP and SPR using fixed bed reactors. The influence of temperature on pyrolysis product’s yield and characteristics are investigated by using mass balance method and gas chromatography – mass spectrometry (GC-MS) technique, respectively. The results from mass balance method present an optimum pyrolysis temperature of 550 ºC to obtain the desired liquid product of bio-oil, presenting the percentage of 34.59 wt.% for SP and 33.44 wt.% for SPR case. Additionally, with the increasing temperature, the char yield decreases for about 30 wt.% and the yield of gas seems to sharp increase from 550 to 600 ºC. These tendencies are both applied for SP and SPR source pyrolysis product. Interestingly, the benefit use as fossil fuel substitute might be derived, thanks to high HHV at the bio-oil product (32.04 MJ/kg for SP and 25.70 MJ/kg for SPR) and also at the char product with of 18.85-26.12 MJ/kg for both cases. The additional benefit come from the high content of C in its char product (50.31 wt.% for SPR and 45.26 wt.% for SP) that might be able to be used as an adsorbent, soil softener or other uses in the pharmaceutical field. ©2019. CBIORE-IJRED. All rights reserved
Cultivation of Chlorella sp. as Biofuel Sources in Palm Oil Mill Effluent (POME) Hadiyanto, H; Azimatun Nur, Muhamad Maulana; Hartanto, Ganang Dwi
International Journal of Renewable Energy Development Vol 1, No 2 (2012): July 2012
Publisher : Center of Biomass & Renewable Energy, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/ijred.1.2.45-49

Abstract

Renewable energy is essential and vital aspect for development in Indonesia especially less oil reserve for coming 15 years. Biodiesel has received much attention as renewable energy in recent years. One of potential biodiesel is produced from microalgae. Due to high content of nutrients in Palm Oil Mill Effluent (POME), this waste is a potential for nutrient growth for microalgae. Chlorella is one of high potential for biodiesel since it has high lipid content (20-30%). The objective of the research is to determine growth rate and biomass productivity in Chlorella Sp cultured in POME. Chlorella Sp was cultured in 20%, 50%, 70% POME using urea concentration 0.1gr/L (low nitrogen source) and 1gr/l (high nitrogen source) at flask disk, pH 6.8-7.2; aerated using aquarium pump and fluorescence lamp 3000-6000 lux as light. Medium was measured using spectrophotometer Optima Sp-300 OD at 680 wave length in 15 days to calculate specific growth rate. At end of cultivation, Chlorella sp was filtered and measured as dry weight. Result indicated that Chlorella sp at 50% POME 1gr/L urea showed higher specific growth rate (0.066/day). Factor affecting growth rate of microalgae is CNP ratio, POME concentration, and urea concentration.
Batch and Fed-Batch Fermentation System on Ethanol Production from Whey using Kluyveromyces marxianus Hadiyanto, H; Ariyanti, D.; Aini, A.P.; Pinundi, D.S.
International Journal of Renewable Energy Development Vol 2, No 3 (2013): October 2013
Publisher : Center of Biomass & Renewable Energy, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/ijred.2.3.127-131

Abstract

Nowadays reserve of fossil fuel has gradually depleted. This condition forces many researchers to  find energy alternatives which is renewable and sustainable in the future. Ethanol derived from cheese industrial waste (whey) using fermentation process can be a new perspective in order to secure both energy and environment. The aim of this study was  to compare the operation modes (batch and fed-batch) of fermentation system on ethanol production from whey using Kluyveromyces marxianus. The result showed that the fermentation process for ethanol production by fed-batch system was higher at some point of parameters compared with batch system. Growth rate and ethanol yield (YP/S) of fed-batch fermentation were 0.122/h and 0.21 gP/gS respectively; growth rate and ethanol yield (YP/S) of batch fermentation were 0.107/h, and 0.12 g ethanol/g substrate, respectively. Based on the data of biomass and ethanol concentrations, the fermentation process for ethanol production by fed-batch system were higher at some point of parameters compared to batch system. Periodic substrate addition performed on fed-batch system leads the yeast growth in low substrate concentrations and consequently  increasing their activity and ethanol productivity. 
Multi-Criteria Decision Making (MCDM) Approach for Selecting Solar Plants Site and Technology: A Review Ghasempour, Roghayeh; Alhuyi Nazari, Mohammad; Ebrahimi, Morteza; Ahmadi, Mohammad Hossein; Hadiyanto, H.
International Journal of Renewable Energy Development Vol 8, No 1 (2019): February 2019
Publisher : Center of Biomass & Renewable Energy, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/ijred.8.1.15-25

Abstract

Renewable energies have many advantages and their importance is rising owing to gravely mounting concerns for environmental issues and lack of fossil fuels in the future. Solar energy, well acknowledged as an inexhaustible source of energy, is developing dramatically for different purposes such as desalination and electricity generation. Appropriate solar power plant is very important factor for power generation due to its cost and other constraints. The applied technology is as important as the solar power plants location.  In this paper, a wide variety multi criteria decision making (MCDM) methods, investigated by various researchers, are presented to obtain effective criteria in selecting solar plants sites and solar plants technologies. There is not any comprehensive research providing all required criteria for decision making for site and technology selection. Based on the reviewed researches, weight of each criterion depends on many factors such as region, economy, accessibility, power network, maintenance costs, operating costs, etc. The important criteria for site selection are represented and investigated thoroughly in this review paper.© 2019. CBIORE-IJRED. All rights reservedArticle History: Received June 17th 2017; Received in revised form March 7th 2018; Accepted June 16th 2018; Available onlineHow to Cite This Article: Ghasempour, R., Nazari, M.A., Ebrahimi, M., Ahmadi, M.H. and Hadiyanto, H. (2019) Multi-Criteria Decision Making (MCDM ) Approach for Selecting Solar Plants Site and Technology: A Review. Int Journal of Renewable Energy Development, 8(1), 15-25.https://doi.org/10.14710/ijred.8.1.15-25
Enhancement of Hybrid SPEEK Based Polymer–Cyclodextrin-Silica Inorganic Membrane for Direct Methanol Fuel Cell Application Kusworo, Tutuk Djoko; Hakim, Muhammad Fahmi; Hadiyanto, H
International Journal of Renewable Energy Development Vol 6, No 2 (2017): July 2017
Publisher : Center of Biomass & Renewable Energy, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/ijred.6.2.165-170

Abstract

Direct methanol fuel cell (DMFC) is one of several types of fuel cells that use proton exchange membrane  (PEM) as a liaison between the reaction at the cathode and anode. Polyether-ether ketone (PEEK) is one of the aromatic polymer that can be applied in DMFC because of its characteristics that are resistant to DMFC environment. The polymer is also quite easy in the sulfonation process using concentrated sulfuric acid. However the role of polyether-ether ketone as DMFC membrane material is still lack of advantage due to its low conductivity and therefore the modification is required to increase the value of proton conductivity of the membrane. The purpose of this experiment is to modify the membrane (sPEEK) with the addition of cyclodextrins-silica, additive variation charge of 2%, 6% and 10%, time and temperature were fixed at 4 hours and 65oC. The results showed the best results of membrane sPEEK was obtained at the addition of -cyclodextrin -silica 10% with the membrane characteristics of ion exchange capacity of 2.19 meq / g polymer, the degree of sulfonation of 81%, methanol permeability of 3.09 x 10-9 cm2 / s and water uptake membrane of 64%.Article History: Received January 18th 2017; Received in revised form April 21st 2017; Accepted June 22nd 2017; Available onlineHow to Cite This Article: Kusworo, T.D., Hakim, M.F. and Hadiyanto, H. (2017) Enhancement of Hybrid SPEEK Based Polymer–Cyclodextrin-Silica Inorganic Membrane for Direct Methanol Fuel Cell Application. International Journal of Renewable Energy Development, 6(2), 165-170.https://doi.org/10.14710/ijred.6.2.165-170
Bioethanol Production from Iles-Iles (Amorphopallus campanulatus) Flour by Fermentation using Zymomonas mobilis Kusmiyati, Kusmiyati; Hadiyanto, H; Kusumadewi, Indah
International Journal of Renewable Energy Development Vol 5, No 1 (2016): February 2016
Publisher : Center of Biomass & Renewable Energy, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/ijred.5.1.9-14

Abstract

Due to the depletion of fossil oil sources, Indonesia attempts to search new source of bioenergy including bioethanol. One of this sources is Iles-iles tubers (Amorphophallus campanulatus), which is abundantly available in Java Indonesia. The carbohydrate content in Iles-Iles tuber flour was 77% and it can be converted to ethanol by three consecutive steps methods consist of liquefaction-saccharification using α and β-amylase, respectively and then followed by fermentation by using Z. mobilis. The objective of this research was to convert the Iles-iles flour to bioethanol by fermentation process with Z.mobilis. The ethanol production process was studied at various starch concentration 15-30% g/L, Z. mobilis concentration (10-40%) and pH fermentation of (4-6). The result showed that the yield of bioethanol (10.33%) was the highest at 25% starch concentration and 25% of Z.mobilis concentration. The optimum conditions was found at 4.5, 30°C, 10%, 120 h for pH, temperature, Z. mobilis concentration and fermentation time, respectively  at which  ACT tuber flour produced a maximum ethanol of 10.33 % v/v.Article History: Received November 12nd 2015; Received in revised form January 25th 2016; Accepted January 29th 2016; Available online How to Cite This Article: Kusmiyati , Hadiyanto,H  and Kusumadewi, I (2016). Bioethanol Production from Iles-Iles (Amorphopallus campanulatus) Flour by Fermentation using Zymomonas mobilis. Int. Journal of Renewable Energy Development, 9(1), 9-14 http://dx.doi.org/10.14710/ijred.5.1.9-14 
Multi-Feedstocks Biodiesel Production from Esterification of Calophyllum inophyllum Oil, Castor Oil, Palm Oil and Waste Cooking Oil Hadiyanto, H; Aini, Apsari Puspita; Widayat, Widayat; Kusmiyati, Kusmiyati; Budiman, Arief; Roesyadi, Achmad
International Journal of Renewable Energy Development Vol 9, No 1 (2020): February 2020
Publisher : Center of Biomass & Renewable Energy, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/ijred.9.1.119-123

Abstract

Biodiesel can be produced from various vegetable oils and animal fat. Abundant sources of vegetable oil in Indonesia, such as Calophyllum inophyllum, Ricinus communis, palm oil, and waste cooking oil, were used as raw materials. Multi-feedstock biodiesel was used to increase the flexibility operation of biodiesel production. This study was conducted to determine the effect of a combination of vegetable oils on biodiesel characteristics. Degumming and two steps of esterification were applied for high free fatty acid feedstock before trans-esterification in combination with other vegetable oils. Potassium hydroxide was used as a homogenous catalyst and methanol as another raw material. The acid value of C. inophyllum decreased from 54 mg KOH/gr oil to 2.15 mg KOH/gr oil after two steps of esterification. Biodiesel yield from multi-feedstock was 87.926% with a methanol-to-oil molar ratio of 6:1, temperature of 60 ℃, and catalyst of 1%wt. ©2020. CBIORE-IJRED. All rights reserved
Biofixation of Carbon dioxide by Chlamydomonas sp. in a Tubular Photobioreactor Hadiyanto, H; Sumarno, S; Nur Rostika, Rufaida; Abyor Handayani, Noer
International Journal of Renewable Energy Development Vol 1, No 1 (2012): February 2012
Publisher : Center of Biomass & Renewable Energy, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/ijred.1.1.10-14

Abstract

The biogas production from anaerobic digestion is a potential fuel for power generators application, if biogas can be upgraded to the same standards as fossil natural gas by CO2, H2S, and other non-combustible component removal. Microalgae Chlamydomonas sp. has potency to biofix the carbon dioxide and can be used as an additional food ingredient. The variations of flow rate and carbon dioxide concentration in the process resulting different value of biomass production and carbon dioxide biofixation. Biomass production at 40% carbon dioxide concentration obtained 5.685 gr/dm3 at 10% carbon dioxide concentration obtained 4.892 gr/dm3. The greatest value of carbon dioxide absorption occurs at a 40% concentration amounting to 12.09%. The rate of growth and productivity of microalgae tend to rise in 10% and 20% (%v) carbon dioxide concentration, but began started a constant at 30% and 40% (%v) carbon dioxide concentration. Biomass production tends to increase in light conditions while a constant in dark conditions. This study used Chlamydomonas sp. as media culture and performed on bubble column and tubular reactor with 6 litres of culture medium at a temperature of 28oC and atmospheric pressure.
Co-Authors - Hermawan - Purwanto . Widayat A Abdullah A.P. Aini Abdurrafi Alwan Achmad Chalid Afif Alfajrin Achmad Roesyadi Adhi, M. A. Adi Wibowo Adian Khoironi Afriza Ni'matus Sa'adah Afshar, Mohammad Ali Ahmadi, Mohammad Hossein Aini, Apsari Puspita Ainun Nurusy Syahida Al-Baari, Ahmad N Al-Baarri, Ahmad Ni’matullah Albertus Djoko Lesmono Alhuyi Nazari, Mohammad Amalia Farhati Anak Agung Istri Sri Wiadnyani Andono Kusuma Jati Andri C. K. Andri Cahyo Kumoro Andry Anggoro Arahim Angela Nitia Nefasa Angela Nitia Nefasa Aniek Sri Handayani Aniek Sri Handayani Anisa Widia Utami Apsari Puspita A. Arief Budiman Arief Budiman Arif Harimukti Arif Setiawan Asri Cahaya Hati Athanasia Amanda Septevani, Athanasia Amanda Avido Yuliestyan Awaluddin Hidayat Ramli Inaku Azafilmi Hakiim Aziz Jihadian Barid Bambang Cahyono Barid, Aziz Jihadian Bidi, Mokhtar Budhijanto, B. Cantika Aulia Salsabila Catur Edi Widodo D A Sari D. Ariyanti D.S. Pinundi Danny Soetrisnanto Dedi Khairunas Desiyantri Siti P. Dessy Agustina Sari Dessy Ariyanti Dessy Ariyanti Didi Dwi Anggoro Dyah Ari Wulandari Dyah Hesti Wardhani Dyan Pratiwi E Hugeng Wandono Ebrahimi, Morteza Eko Hidayanto Endang Kusdiyantini Eudia Christina Wulandari Evita Febriyanti Febio Dalanta Fianda Revina Widyastuti Figa Muhammad Octafalahanda Fitria Yuli Anggita Sari Fitriyanto, Bobby Rachmat Fitriyanto, Bobby Rachmat Fuad Muhammad Fuad Muhammad Ganang Dwi Hartanto Ghasempour, Roghayeh Hakim, Muhammad Fahmi Hamid Hamid Hantoro Satriadi Hapsoro Bagus Wicaksono Hargono Hargono Haris Nu'man Aulia Hashfi Hawali Abdul Matin Hati, Asri Cahaya Hemawan, Ferry Hendra Naldi Henna Rya Abdurachim Henna Rya Sunoko Henna Rya Sunoko Heri Cahyono Heri Sutanto Hermawan Hermawan Hoang, Anh Tuan I Made Aditya Suryajaya Iis Nurhasanah Imam Novrizal Aji Indah Kusumadewi, Indah Indro Sumantri Indro Sumatri Irawan Arif Budianto J. Jamari Jaka Windarta Jihan Nabila Joni Safaat Adiansyah Kevin Aprilio Kusmiyati Kusmiyati Le, Tri Hieu M Christwardana M Christwardana M M A Nur M. Barbosa M. Djaeni M.M. Azimatun Nur M.M. Azimatun Nur, M.M. Azimatun Marcelinus Christwardana Marcelinus Christwardana Marcelinus Christwardana Marcelinus Christwardana Marcelinus Christwardana Marcelinus Christwardana Marcelinus Christwardana Mardiyah Sari Dewi Maryono Maryono Mega Anggraeni Mega Anggraeni Meiny Suzery Miftah Aqidatul Izzah Mochamad Arief Budihardjo Moh. Djaeni Muhamad Imaduddin Muhamad Maulana Azimatun Nur Muhammad Helmi Muhammad Nasyarudin Iqbal Muhammad Zaini Mahdi Munifatul Izzati Nailawati Prastiya Ningrum Naseri, Ali Nicholas Franz Noer Abyor Handayani Pham, Minh Tuan Pham, Van Viet Pribadyo Pribadyo Prima Astuti Handayani Primadi Gayuh Laksono Putro Purwanto - Purwanto Purwanto Purwanto Purwanto Purwono Purwono Putri, Sylvia Rahmi R. Wijffels Rachmad Ardhianto Ganjar Samudro Ratna Dewi Kusumaningtyas Ratnawati Ratnawati Reistu Widiastutik Retno Wulandari Rifqi Ahmad Baihaqi Riky Yonas Riky Yonas Rini Budi Hastuti Rita Dwi Ratnani Riza Saadiah, Riza Rizal Isnanto, R RM Bagus Irawan Rochmadi, R. Rocky Adiguna Rufaida Nur Rostika S Subandriyo S Sumarno S. Suherman Sabda Wahyu Nugroho Sakina Tunissa Anarki Satrio Kuntolaksono Sestri Bela Pratiwi Setia Budi Sasongko Silviana Silviana Singgih Wibowo Siswo Sumardiono Siti Jamilatun Sri Puji Lestari Sri Widodo Agung Sueda Suhatman, Agus Suherman Suherman Sulardjaka Sulardjaka Sumarno Sumarno Thomas Triadi Putranto, Thomas Triadi Tri Retnaningsih Tri Retnaningsih Soeprobowati Tubagus Rayyan Fitra Sinuhaji Tutuk Djoko Kusworo Uray Irzandi Uray Irzandi Vimala Kamandjaja Vita Efelina Wahjono, Tri Eko Wahyu Zuli Pratiwi Widayat Widayat Widiyanto Widiyanto Wihermanto, W. Yasinta Nikita Titisari Yoyon Wahyono Yulis Hindarwati Zin Min Tun