Masrur Alatas

EDUCATION

Doctoral Program of Environmental Science Universitas Sebelas Maret

RESEARCH INTERESTS

Environmental
New and Renewable Energy
Water Resources Mangement
Community Development

Scopus Publications

Numerical simulation of non-Newtonian nanofluid flow and heat transfer in ribbed grooved channels
Mohammad Hossein Yazdi, Ali Mahrooghi, Evgeny Solomin, Javad Safehian, Reza Adgi, Muslizainun Mustapha, Masrur Alatas, Ahmad Fudholi
Case Studies in Thermal Engineering, 2025
This study investigates the enhancement of heat transfer in ribbed grooved channels using non-Newtonian nanofluids under turbulent flow conditions. While substantial progress has been made in both nanofluids and grooved channel designs, most existing studies focus on Newtonian fluids or simplified groove geometries, missing the complex interplay between nanoparticle-induced thermal properties and shear-dependent viscosity effects. The present work fills this gap by providing a detailed numerical simulation that examines the effects of groove geometry, Reynolds number, power-law index, and nanoparticle volume fraction. The novelty of this research lies in its parametric analysis and comparison of groove geometries (square, triangular, and square-triangular), offering new insights into optimizing heat exchanger designs. The results demonstrate that groove geometry and fluid rheology synergistically enhance thermal performance, providing valuable design guidelines for more efficient thermal systems.
Entropy Generation Analysis of Ferrofluid Flow Over Horizontal Surface with Heat Source and Radiative Effects
M.H. Yazdi, Ali Mahrooghi, Masrur Alatas, E. Solomin, Hossein Dehjourian, Tri Suyono, Haznan Abimanyu, Pengyan Guo, Ahmad Fudholi
Results in Engineering, 2025
This study provides a detailed investigation of heat transfer mechanisms on a flat surface under uniform heat flux, with a focus on the effects of heat sources and radiation. Central to this analysis is the role of magnetic nanoparticles dispersed in both water-based and oil-based fluids, aiming to balance thermal efficiency and system entropy. Using MATLAB for numerical simulations, the study examines the impact of varying nanoparticle concentrations on heat transfer dynamics and system irreversibility. The findings reveal a complex interaction between frictional, thermal, and magnetic irreversibilities. Specifically, an inverse relationship was observed between nanoparticle volume concentration and both frictional and thermal irreversibilities, counterbalanced by an increase in magnetic irreversibility. This highlights a critical concentration threshold where nanoparticles optimize system performance by minimizing overall irreversibility. For instance, increasing magnetic nanoparticle concentration by 25% led to a 15% improvement in heat transfer efficiency compared to base fluids. The study also investigates the effects of slip conditions, revealing that reducing slip tends to increase both frictional and thermal irreversibilities, albeit at the expense of magnetic irreversibility within a specific range of Reynolds numbers. For example, increasing the slip parameter from 0.1 to 0.5 resulted in a 15% improvement in heat transfer efficiency and a 10% reduction in entropy generation. Additionally, the economic aspect of using magnetic nanofluids is addressed, highlighting the increased fluid transportation costs due to higher nanoparticle concentrations. This study suggests that practical applications of magnetic nanofluids must carefully balance enhanced heat transfer with operational costs.
Horizontal Trash Rack Diverter Trash (HTDT) to Minimize Trash Clogging at the Intake of Micro-Hydro Power Plant
Masrur Alatas, Etty Susilowati, Maria Theresia Sri Budiastuti, Totok Gunawan, Prabang Setyono, Sunarto
International Journal of Sustainable Development and Planning, 2022
Clogging of Trash at the Micro Hydro-Power Plant can reduce the discharge, head, and micro-hydro production. Trash racks are currently less efficient in solving Trash clogging, so it needs appropriate technology innovation with the Horizontal Trash rack Diverter Trash (HTDT) which functions to get rid of or divert Trash. Diversion of Trash as well as increasing and stabilizing the discharge is important so that the innovation of adding a flow steering valve is needed (HTDT+V). The results of the research at β20° is the most optimal angle, the highest speed at the intake channel Cm4 V 0.7 m/s and HTDT + V β20° V 0.8 m/s occurs an increase in speed. Trash paste time β20° t 2.76 seconds, faster than the angle β0°, β5°, β30° Trash paste time t3.5 seconds. The HTDT+V installation increases the inflow velocity (V) in the intake channel by 60% and increases the discharge (Q) by 50%.
SPIRAL CYCLE MICRO-HYDRO COMMUNITY SYSTEM MODEL FOR SUSTAINABLE DEVELOPMENT IN YOGYAKARTA, INDONESIA
nstitut Teknologi Yogyakarta, MASRUR ALATAS, Maria Theresia Sri Budiastuti, Totok Gunawan, Prabang Setyono
Journal of Sustainability Science and Management, 2022
Indonesia is committed to innovating and making breakthroughs in micro- hydro energy development. However, the problem is the lack of multi-stakeholder roles, especially local communities in its development, causing the poor operation of micro- hydropower plants. This research aims to apply the Spiral Cycle Micro-hydro Community System (SCMCS) Model through an eight-stage cycle process for the development of the Kedungrong micro-hydro power plant (MHPP) in Yogyakarta. The methods used are a qualitative approach, collecting data in the form of field observations, in-depth interviews and forum group discussion. The results and new findings indicate that SCMCS requires at least four cycles to be useful and sustainable. First is enhancing institutional, social and environmental aspects. Second is enhancing the technical aspects. Third involves improving the economic aspects. Fourth is optimizing the use of micro-hydro energy for micro-small enterprises. This model has successfully developed and preserved the MHPP project through integrated multi-stakeholder community participation in rural areas.
Grand Design for Merapi Irrigation Channel System Using Watershed and River Region Approaches based on Community Development in Yogyakarta, Indonesia
Slamet Suprayogi, Totok Gunawan, Sigit Heru Murti, Wikan Jaya Prihantarto, Masrur Alatas
Asean Journal on Science and Technology for Development, 2022
This paper proposes a grand design for Merapi Irrigation Channel, an irrigation channel system spanning from Turi to Cangkringan District in Yogyakarta, Indonesia. This design is based on Geographic Information System research to assess the feasibility of the system from two aspects, namely geophysics using site selection approaches (watershed and river region) and community aspirations, analyze potential water resource availability to support its sustainability, and construct a grand design. Primary data acquired from IKONOS image interpretation were used to collect geophysical and ?eld data for parameter mapping, and spatial data were modeled using Geographic Information System technology to determine paths, directions, and routes. Community aspirations were obtained by structured interviews with key informants and focus group discussions with community groups in village units. Results showed that the land carrying capacity geophysically allowed Krasak–Bedog Rivers as the permanent discharge of 123.78 m3/s of water, which is consistent with community aspirations for high irrigation water discharge in traversed districts. Overall, 19 rivers and 9 arti?cial retentions in the channel system respectively produced maximum discharges of 123.78 and 12 m3/s. The grand design included the construction of a 41 km long Merapi Channel from Turi (speci?cally Wonokerto Village) at 500 masl to Cangkringan (Glagaharjo) at 450 masl.
Stage of potential identification irrigation channel topography analysis for micro-hydro power in the Kalibawang irrigation primary channel, Yogyakarta, Indonesia
Masrur Alatas, Maria Theresia Sri Budiastuti, Totok Gunawan, Prabang Setyono
International Journal of Sustainable Development and Planning, 2021
This study was designed to determine the stages in the identification of micro-hydro in irrigation channels based on the classification and level of data requirements in a project, starting from the initial study, feasibility study and detailed engineering design. The study was conducted with site selection criteria using four information systems and technology tools, namely Google Earth, GIS Topography, UAV Drone Phantom DJI 4, and Nikkon DTM 332 Total Station. The results shows through GE and GIS, obtained 23 potential points, 7 of which are high potential, followed by field measurements with 1 selected UAV location Cascade, and detailed with TS to produce Head (H) 12 m, with CM and FDC probability 75% discharge (Q) 5.5 m3/s, generated power (P) 550 kW. This study provides a method and solution for speed in identifying potential with Google Earth and GIS (Macro Class), speed and risk reduction for surveyors with UAVs (Mezo Class), and accuracy and detailing at selected locations with Total Station (Micro Class). So that this research provides accuracy in the stages, methods and tools used in the identification of micro-hydro potential in irrigation channels.
The Potential of Micro-hydro Power Cascade in Irrigation Channel of Kalibawang, Indonesia
Masrur Alatas, Maria Theresia Sri Budiastuti, Totok Gunawan, Prabang Setyono
International Journal on Advanced Science Engineering and Information Technology, 2021
Indonesia's program and regulation on the national New and Renewable Energy Policy mix target are at least 23% by 2025 and 31% by 2050 to increase the role of NRE to energy security and self-sufficiency in energy. The government's plan Energy sourced from hydropower, mini micro-hydro installed 20,960 MW in 2030 and 45,379 MW in 2050. The construction of dams on the river can have an impact on the backwater and the environment. Construction of micro-hydro in existing irrigation channels is an environmentally friendly solution. In this study, Identification of Potential Head (∆H) in Irrigation Channels used an unmanned aerial vehicle (UAV) DJI Phantom 4. DEM data processing was to produce contours at 7 potential micro-hydro location points. Data Flow Duration Curve (FDC) determined the mainstay discharge of 5 m3/s with a probability of 85%. Discharge analysis from secondary irrigation data for 11 years (2009-2019). The results of this study found the Head potential P1 ∆H 15 m 625 kW, P2 ∆H 1.5 m 63 kW, P3 ∆H 5 m 208 kW, P4 ∆H 3 m 125 kW, P5 ∆H 8 m 333kW, P6 ∆H 7 m 291 kW, P7 ∆H 3.5 m 146 kW and total micro-hydro potential along Kalibawang irrigation channel reaches 1.8 MW. Special Result found the Microhydro Blumbang-Kedungrong Cascade (P5-P6) ∆H 15 m 600 kW with proposed Kaplan turbine S-Type and service area to increase from 135 to 720 homes in 2 sub-districts.
The Identification of Micro-hydro Power Plants Potential in Irrigation Areas Based on Unmanned Air Vehicle (UAV) Image Processing
Masrur Alatas, Maria Theresia Sri Budiastuti, Totok Gunawan, Prabang Setyono, Juris Burlakovs, Erkata Yandri
E3s Web of Conferences, 2020
Estimation of the energy demand in Indonesia will increase by 8.15 % annually until 2030. Indonesia is committed to preventing climate change through mix energy (new and renewable energy). One of the sources of this energy is waterpower plants with a potential of 75 091 MW have been utilized 6.4 %, mini-hydro, and micro-hydro with a potential of 19 385 MW have been utilized 1 %. In the Industrial Revolution 4.0, it is doable to identify such potential using drone. This study was conducted in the Kalibawang irrigation area, Special Region of Yogyakarta, Indonesia. The procedure starts with the generation of detailed Aerial Photography using Drone DJI Phantom 4. The images from aerial photography were then processed into high-resolution Digital Elevation Model (DEM). DEM data represent the study area topography and can be used to identify the stream gradient potential or height difference (H). Six potential points were identified with height differences between 3 m to 8 m, resulting in the potential generated power ranging from 125 kW to 334 kW. This study demonstrates the identification of micro-hydro energy potential points, height difference, and generated power using Drone. Six points were identified with total potential energy 1 418 kW.

Publications

The Potential of Micro-hydro Power Cascade in Irrigation Channel of Kalibawang, Indonesia

Stage of Potential Identification Irrigation Channel Topography Analysis for Micro-Hydro Power in the Kalibawang Irrigation Primary Channel, Yogyakarta, Indonesia

The Identification of Micro-hydro Power Plants Potential in Irrigation Areas Based on Unmanned Air Vehicle (UAV) Image Processing