cover
Contact Name
Muhamad Fuat Asnawi
Contact Email
fuatasnawi@nacreva.com
Phone
+6285291041812
Journal Mail Official
admin@nacreva.com
Editorial Address
Dieng Street KM 11, Wonosobo District, Central Java Province, Indonesia
Location
Kab. wonosobo,
Jawa tengah
INDONESIA
Clean Energy and Smart Technology
ISSN : -     EISSN : 29642647     DOI : https://doi.org/10.58641/cest
The Clean Energy and Smart Technology (CEST) journal aims to provide a platform for researchers, academicians, and professionals to publish high-quality articles that explore innovative ideas and solutions in the field of energy and technology. It focuses on fostering interdisciplinary research and practical applications that address current challenges and opportunities in energy efficiency, sustainability, and technological advancements. Scope The journal covers a wide range of topics, including but not limited to: Energy and Cost Efficiency: Analysis of cost-saving measures and efficient energy utilization in various sectors. Social Impact of Energy and Technology: Studies on how energy and technological developments affect societal well-being. Sustainable and Smart Architecture: Design and development of energy-efficient and smart buildings. Environmental and Safety Concerns: Investigation of hazardous substances in residential and industrial environments. Structural Innovations: Research on earthquake-resistant technologies and advanced materials. Legal and Policy Frameworks: Examination of laws and regulations governing energy and technology implementation. Renewable Energy Development: Exploration of new and renewable energy sources and technologies. Multidisciplinary Applications: Cross-cutting studies that integrate energy and technology with fields such as informatics, engineering, physics, and chemistry.
Articles 36 Documents
Investigation Of Variation Of Fin Length Dimensions On Piezoelectric Voltage Generating Riyan Ariyansah; Sunaryo Sunaryo; Sutoyo Sutoyo
Clean Energy and Smart Technology Vol. 1 No. 1 (2022): October
Publisher : Nacreva Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58641/cest.v1i1.1

Abstract

Piezoelectric is one of the generators of electrical energy when the material is deflected due to pressure. Research has been done on the potential of the fins on the electric voltage produced by piezoelectric. The research method used is to observe the piezoelectric vibrating due to the flow of air passing through the bluff body resulting in a deflection of the fins to strike the piezoelectric and measuring the electric voltage. Changes in the speed of fins installed with piezoelectric dimensions, namely fin one length 12 cm and width 10 cm, fin two length 12 cm width 10 cm and tip width 12 cm, fin three length 12 cm, width 10 cm and tip width 14 cm. The research was conducted in a mini wind tunnel with wind speeds of 5 m/s, 7 m/s, and 9 m/s with a piezoelectric distance to the rhombus bluff body is 80 mm. The results obtained are fin 1 with a speed of 9 m/s produces an electric voltage of 5.15 volts, fin 3 with a speed of 9 m/s produces an electric voltage of 5.46 volts, and fin 4 with a wind speed of 9 m/s has the highest voltage value, namely 5.58 volts. The airflow as it passes through the end of the bluff body section causes the fin to move up and down. The greater the turbulence that occurs, the greater the air hitting the piezoelectric surface so that the value of the electric voltage becomes high.
Energy Consumption of Indonesian Red Cross (PMI) Building at Wonosobo Regency Hermawan Hermawan; Ifan Andriawan; Annisa Nabila Arrizqi
Clean Energy and Smart Technology Vol. 1 No. 1 (2022): October
Publisher : Nacreva Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58641/cest.v1i1.2

Abstract

Energy use in health buildings is inevitable due to building functions that must protect specific equipment or parts. One of the health buildings, namely the Indonesian Red Cross (PMI) building, serves to draw people's blood. The use of artificial ventilation must be used to support the function of the PMI building. The study aimed to determine the use or energy consumption of the Indonesian Red Cross (PMI) building in the Wonosobo Regency. The study used the field measurement method for one day. The data collection method also uses the observation method to describe the space and activities in the building. Data analysis uses graphs and compares the outside and inside of the building. AC specifications are also displayed to know how much energy is used. The results showed that the energy consumption of air conditioning in the Wonosobo PMI building was not too large, considering that only specific spaces were used. The outside area is quite remarkable and supports the AC setting, which is not too strong.
Studying the Absorption Refrigeration System powered by Thermal Waste and Electricity Conversion from Photovoltaic Priyo Adi Sesotyo; Sunaryo Sunaryo; Zainal Arifin; Puji Basuki
Clean Energy and Smart Technology Vol. 1 No. 1 (2022): October
Publisher : Nacreva Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58641/cest.v1i1.3

Abstract

Currently, buildings are responsible for 32% of the world’s energy consumption, with the most massive energy-consuming device in facilities being the refrigeration system. Photovoltaic is an alternative source of energy without causing environmental damage. Solar Refrigeration is an attractive solution because when there is much solar radiation, peak thermal energy is generated, and a lot of cooling capacity is needed. In this research, the amount of PV modules used as the LiBr-H2O Absorption Refrigeration System’s primary energy source is investigated. PV modules have a dual function, namely as a producer of electric power and producing thermal waste, both of which can be used as energy sources to drive this refrigeration system. In this thermal waste, two thermal sources, namely thermal convection and thermal radiation, accumulate to activate heat exchange at the LiBr-H2O absorption refrigeration system’s generator side. For electrical power from the PV module, it is used to run the air heater to increase the temperature until it reaches the optimum point for hot water supply between 65 to 70 oC. The results are that at least 100 modules of 100Wp Monocrystalline PV Module are needed to drive the LiBr-H2O absorption refrigeration system. Still, it is limited to 15.00, after which the energy source is switched back to electricity from PLN because, after 15.00, many PV modules are required and takes up a large enough space.
Automation Of Trash Can Collection Using Line Follower Based On Wireless Control Hidayatus Sibyan; M. Fuat Asnawi; Dwitya Ilham Kurniadi
Clean Energy and Smart Technology Vol. 1 No. 1 (2022): October
Publisher : Nacreva Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58641/cest.v1i1.4

Abstract

Every school must have a cleaning staff whose job is to care for and maintain the cleanliness of the school building. At SMKN 2 Bawang, the building is spacious and separated between buildings, so collecting waste requires a lot of time and effort. An ineffective process occurs when the cleaning staff collects waste in a circular path. Automating garbage collection using a line follower robot with PID control and the blynk application to start and stop as well as a predetermined path at a particular gathering point, can save energy and time for cleaning staff. The tuning value for each PID Control constant P=0.2, I=0.3, and D=0.06 can smooth the robot's movement with the L298N motor driver. It is decided by the Arduino UNO microcontroller and wireless connection using NodeMCU (ESP8266) for direction taking. The reading sent by the infrared sensor with analogRead mode when dimmed is in the range of 175~270, and the maximum reading value of the sensor is 940~950. The decision to turn follows a predetermined line when the sensor is below 175, according to which the sensor hits the line. The robot will stop running when the ultrasonic sensor finds an object or obstacle less than 15 cm in front of it.
Implementation Of Promotion Push Notifications in Ticket Booking Applications Using Forward Chaining Algorithm Muhamad Fuat Asnawi; Aletha Dhelvya
Clean Energy and Smart Technology Vol. 1 No. 1 (2022): October
Publisher : Nacreva Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58641/cest.v1i1.5

Abstract

Waterfall is a leading tourist attraction in Winongsari Village, Kaliwiro District, Wonosobo Regency. This waterfall, named Curug Winong, has become a developing tourist spot. This research contains the design and development of promotion push notifications using the Forward Chaining method which is intended to help determine promotions. This application was developed using the PHP programming language with a MySQL database. This application determines the promotion with the conditions that have been determined. Based on dates, holidays, and other applicable conditions. system testing, namely black box and white box testing.
ENERGY POTENTIAL OF FLUE GAS ALUMINUM SMELTING FURNACE SOLAR FUEL WITH THE ADDITION OF TEAK WOOD PELLETS Sutoyo; Muhammad Shomad; Sunaryo
Clean Energy and Smart Technology Vol. 1 No. 2 (2023): April
Publisher : Nacreva Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58641/cest.v1i2.36

Abstract

The choice of fuel (fuel oil) whose price is higher needs a solution, especially for conventional foundry entrepreneurs. We need alternative energy that is cheap and easy to get. Wood pellets are an attempt to replace fuel with cheap fuel. As with previous studies, the main objective of this study was to measure the energy potential of the smelting furnace flue gas. The analysis results show that 365,413.3 kJ of heat energy is wasted from the total point required for smelting. The flames sometimes coming out of the furnace flue gas channel indicate that some heat energy is smashed into the free air. The exhaust gas temperature is measured at 500-550⁰C, and you can see flashes of fire coming out frequently. This indicates that there is energy potential for the working process of the pyrolysis reactor; apart from that, the moments of fire that often appear indicate an excess of the combustion process in the furnace. This study's results may differ from other smelting furnace constructions and conditions.
RESORT AREA WITH REGIONALISM ARCHITECTURAL APPROACH AND THERMAL COMFORT IN KLEDUNG TEMANGGUNG Aldhi Nugroho; Hermawan Hermawan; Adinda Hendriani
Clean Energy and Smart Technology Vol. 1 No. 2 (2023): April
Publisher : Nacreva Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58641/cest.v1i2.37

Abstract

The design of this Resort area uses the Thermal Comfort Approach. Using suitable materials and contemporary concepts, buildings in this area will later become comfortable lodgings and increase new comfort for new tourists. The realization of the conceptual basis for planning and designing a Resort in Kledung Temanggung, which is equipped with supporting facilities that can provide a sense of comfort through interior and exterior spatial processing based on the Regionalism Architecture Approach and Thermal Comfort, which can attract tourists. The methodology to be used in the design and planning of the Resort at Kledung Temanggung is competitively descriptive, and the data collection method obtained both primary and secondary data. This article produces a design concept for planning and designing a resort area by considering the existing thermal in the Temanggung district.
CLASSIFICATION OF NUTRITIONAL STATUS USING K-NEAREST NEIGHBOR (KNN) METHOD Lina Fauziah; Hidayatus Sibyan; Nur Hasanah; Iman Ahmad Ihsannudin; Nulngafan
Clean Energy and Smart Technology Vol. 1 No. 2 (2023): April
Publisher : Nacreva Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58641/cest.v1i2.38

Abstract

According to a statement from the chairman of the Ngadimulyo village cadres, the prevalence of stunting in five-year-old babies (toddlers) in Ngadimulyo village in 2022 is 20%, which means there are 32 stunted toddlers out of 160 toddlers in Ngadimulyo village. The first 1000 days are the golden age for babies, but many toddlers aged 0-59 months still experience nutritional problems. In interviews with several mothers in Ngadimulyo village who have toddlers, many mothers still do not understand the calculation of nutritional status; they only rely on calculations from posyandu cadres recorded in the MCH book (Maternal and Child Health). Data recording is still conventional and produces physical data in the form of books, so data storage also has many risks, such as damage and loss. To reduce the risk of stunting, a system is needed that facilitates the calculation of under-five nutrition so that parents can independently calculate the nutritional status of their under-fives. Currently, many parents are still assisted in determining stunting criteria. Currently, parents only get stunting knowledge from counseling, so parents who have toddlers do not understand to analyze stunting symptoms independently. They are unaware if stunting occurs; therefore, with a system that can assist parents in calculating stunting rates, it is hoped that parents can provide maximum nutritional intake so that stunting cases decrease. Parents can also prevent stunting from occurring. One of the systems used to calculate the nutritional status classification of toddlers is the K-Nearest Neighbor Method (KNN). The reason for choosing the KNN method is because this method can meet other variables in determining the nutritional status of toddlers and is one of the most basic and simple grouping techniques.
DATA MINING TO PREDICTE THE TIME OF KHATAMAN TAHFID STUDENTS TAHFID PPTQ AL-ASY'ARIYYAH USING C4.5 ALGORITHM Muhamad Maulana Ikhsanul Khafidli; Muhamad Fuat Asnawi; Adi Suwondo; Sukowiyono; Dimas Prasetyo Utomo
Clean Energy and Smart Technology Vol. 1 No. 2 (2023): April
Publisher : Nacreva Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58641/cest.v1i2.39

Abstract

PPTQ Al-Asy'ariyyah is an Al-Qur'an-based Islamic boarding school where most students memorize the Al-Qur'an. This study uses data mining to calculate how many students are late in completing their memorization and the factors that influence it by using the C4.5 algorithm. Algorithm C4.5 has a decision that can give the desired result. The results of this study found several factors that influence the punctuality of khatam and several factors. Of the 250 students located, 96 could complete their memorization on time, and 154 were off target or on time. Based on what was obtained from the study results, the timeliness of completing the completion is sufficient.
OPTIMIZING THE QUALITY OF CHAR BRIQUETTE PYROLYSIS PRODUCTS OF PLASTIC WASTE Sunaryo; Sutoyo; Suyitno; Muh. Taufik
Clean Energy and Smart Technology Vol. 1 No. 2 (2023): April
Publisher : Nacreva Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58641/cest.v1i2.40

Abstract

Recycling process of the plastic waste into fuel in the concept of Waste to Energy is a technology that began to popularize the pyrolysis method. In addition to liquid fuels as the main product , which is produced from the above method is solid and non - condensable gases. Generaly, the residual gas is burned directly , while the solids can be processed into solid fuel (char briquettes) . To process the solids into a char ( fixed carbon + ash ) then it should be the beginning of a process to remove moisture and reduce levels of volatile matter . Despite a volatile fuel but large levels indicate that the pyrolysis process has not been good , besides the burning application will cause soot . Initial research has resulted in the burning of 8 quality test data sample of 13 samples char briquettes obtained by pyrolysis of polyethylene plastic material with an operating temperature variation between 450-500 ° C , as well as mass variations and types of catalysts Zeolite Y and Natural Zeolite . In addition, the variation was also performed by mixing the PE material with the type of Polystyrene , Polypropylene , Polyethylene Terephthalate , and Other . Char characteristics are known through the proximate test include moisture content , ash , volatile matter and fixed carbon , calorific value is tested through the bomb calorimeter . Combustion quality tested in the furnace at a temperature of 230 ° C ± walls and constant air flow of 0.7 m / s , and the measured emission levels .The problem is in the application note that burning briquettes are not optimized , long heating periods indicated , as well as varying levels of CO . Therefore, it is necessary to the optimization of combustion quality will be analyzed through the ultimate test and the effect of porosity.

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