Fuel as secondary refrigerant on LPG fuelled vehicle: A thermodynamics analysis

Setiyo, Muji; Waluyo, Budi

doi:10.15282/jmes.13.1.2019.04.0374

Cited by 4 publications

(3 citation statements)

References 37 publications

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“…Greater cooling power can be harvested (around 2.7 kW, at a mass flow rate of 6 g/s LPG), if the heat exchange from LPG to air is not disturbed by ice formation on the evaporator wall. In addition, the total fuel efficiency has also been shown to increase by more than 3%, as explained in previous studies [35].…”

Section: Energy Efficiency Ratio (Eer)supporting

confidence: 77%

Energy Efficiency Ratio (EER) of Novel Air Conditioning System on LPG Fuelled Vehicle: A Lab-Scale Investigation

Setiyo¹,

Waluyo²,

Gobbato³

et al. 2019

IJAME

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Alternative fuels have become an effective solution to reduce the impact of road transport on the environment. On the other hand, the growing uses of air-conditioning (AC) have contributed to worsening the fuel economy of passenger vehicles. Liquid petroleum gas (LPG), if injected in the gaseous phase to power SI engines, may allow reducing the fuel consumption due to AC devices through the recovery of cooling energy from the fuel systems. This paper presents lab-scale tests of an air conditioning system prototype for LPG-fuelled vehicles. The prototype has been assembled using standard vehicle components to quantify the cooling energy recoverable from the LPG evaporation before the fuel is injected into the engine intake manifold. Temperature and humidity of the air exiting the LPG evaporator are measured for fuel mass flow rates typical of light-duty vehicles. The energy efficiency ratio (EER) of the prototype achieves 2.72 when cooling power equals 1.2 kW. Although the system tested needs improvements, the experimental data show that the cooling energy recovered by LPG evaporation can significantly reduce the power consumption of standard AC systems in passenger cars.

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Section: Energy Efficiency Ratio (Eer)supporting

confidence: 77%

Energy Efficiency Ratio (EER) of Novel Air Conditioning System on LPG Fuelled Vehicle: A Lab-Scale Investigation

Setiyo¹,

Waluyo²,

Gobbato³

et al. 2019

IJAME

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“…Namun demikian, dari sekian banyak engine trainer yang tersedia, belum satupun yang dilengkapi dengan LPG kits atau kits bahan bakar ramah lingkungan lainnya. ; Analisis tekno-ekonomi kendaraan berbahan bakar LPG untuk transportasi umum di Indonesia ; Kendaraan berbahan bakar LPG: Tinjauan teknologi dan tren pasar (Kivevele et al, 2020); Karakteristik efek pendinginan sistem refrigerasi ½ siklus pada sistem bahan bakar LPG (Setiyo, Soeparman, Hamidi, et al, 2017b); Simulasi untuk memprediksi potensi efek pendinginan pada kendaraan berbahan bakar LPG ; Unjuk kerja mesin bensin/LPG (Setiyo, Waluyo, Anggono, et al, 2016); Pemodelan AFR dan fuel cut-off mesin berbahan bakar LPG berdasarkan sinyal dari sensor mesin, transmisi, dan sistem rem menggunakan fuzzy logic controller (FLC) (Setiyo & Munahar, 2017); Studi numerik potensi efek pendinginan dari alat penguap kendaraan LPG (Setiyo, Soeparman, & Hamidi, 2017); Karakteristik komposisi LPG di saluran bahan bakar selama proses discharging (Setiyo, Soeparman, Hamidi, et al, 2017a); Teknologi Kendaraan Berbahan Bakar LPG (Setiyo & Suyitno, 2019); dan Studi Kelayakan Penerapan LPG/Vigas Sebagai Bahan Bakar Angkutan Umum Kota Magelang . Selain itu, kami juga telah menghasilkan beberapa paten terkait kendaraan bahan bakar LPG, diantaranya: P00201304508 Alat Penyambung Nepel Tabung Gas; P00201304509 Alat Pencampur Gas Untuk Kendaraan Berbahan Bakar Gas; S00201507904 Alat Pencampur Gas Dengan Venturi Sekunder Untuk Kendaraan Berbahan Bakar Gas; S00201609205 Alat Pengaturan Saat Pengapian Pada Kendaraan Berbahan Ganda; dan P00201709446 Metode Untuk Memanen Efek Pendinginan Pada Kendaraan Berbahan Bakar LPG.…”

Section: Pendahuluanunclassified

Development and Implementation of LPG/Gasoline Bi-Fuel Engine Teaching Media for Vocational High Schools

Setiyo,

Saifudin,

Setiawan

et al. 2023

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In 2022, the World Liquified Petroleum Gas Association (WLPGA) reported that there are more than 28.3 million LPG-fueled vehicles used throughout the world with an increasing trend in the last 20 years. The growth of LPG-fueled vehicles will require more mechanics from vocational school graduates who master environmentally friendly technology. Considering the availability of resources, Muhammadiyah Vocational High School 1 Bandongan Magelang (SMK MUTU Bandongan) has the potential to complement the competencies of graduates with mastery and skills in servicing modern and environmentally friendly vehicles, as one of their uniqueness from others. Therefore, we develop and implement environmentally friendly automotive technology learning media, especially LPG-fueled vehicles at SMK MUTU Bandongan. This is an implementation of research on LPG-fueled vehicles over the last 10 years. Activities are carried out through (1) rebuilding and reconditioning the engine which will be modified into a bi-fuel engine; (2) procurement and installation of converter kits; and (3) increasing teacher competency.

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“…To speed up the process of taking topographic data at the Margatiga Dam location, a measurement method is needed that can be measured, processed, and produce meticulous results in a short time. Photogrammetry is a survey and mapping method that is quite effective today (Setiyo et al, 2016). This method can retrieve data in a wide area coverage from a short distance and in a short time.…”

Section: Introductionmentioning

confidence: 99%

Utilization of Drone Mapping (Photogrammetry) Application to Evaluate the Volume of Inundation Area at Margatiga Dam

Saputra

Lasminto

2023

JOSR

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In 2017 the planned volume of the Margatiga Dam inundation area at an elevation of +23,000 is 42,311,835.60 m3. Using the drone mapping method (photogrammetry) there is a difference in the volume of the puddle area at an elevation of +23,000 with a result of 41,005,959.97 m3. The method used to evaluate the volume of the inundation area at the Margatiga Dam is taking field data using drones in the form of aerial photography, testing the accuracy of GCP (Ground Control Point) geometry and calculating volume using Autodesk Civil 3D software. The volume was obtained after going through an accuracy test on the geometry of GCP alternative one with an accuracy test value of 0.723 meters and an RMSE value of 0.438. Processing using Agisoft software is processed into two parts, namely the first processing using alternative GCP geometry 1 and the second processing using alternative GCP geometry 2. The design of the planning consultant in 2017 regarding the reservoir volume at the Margatiga Dam at an elevation of +23,000 was 42,311,835.60 m3. By evaluating the volume of inundation using the photogrammetric method, a volume of 41,005,959.97 m3 was obtained with a selection of contour intervals of 0.75 meters.

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Fuel as secondary refrigerant on LPG fuelled vehicle: A thermodynamics analysis

Cited by 4 publications

References 37 publications

Energy Efficiency Ratio (EER) of Novel Air Conditioning System on LPG Fuelled Vehicle: A Lab-Scale Investigation

Energy Efficiency Ratio (EER) of Novel Air Conditioning System on LPG Fuelled Vehicle: A Lab-Scale Investigation

Development and Implementation of LPG/Gasoline Bi-Fuel Engine Teaching Media for Vocational High Schools

Utilization of Drone Mapping (Photogrammetry) Application to Evaluate the Volume of Inundation Area at Margatiga Dam

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