The concept of measurement of calorific value of gaseous fuels

Markowski, J.; Imilkowski, Pawel; Nowacki, Marcin; Olejniczak, Damian; Mądry, Jacek; Netter, Krzysztof; Jesionek, K.; Wieczorkiewicz, Grzegorz

doi:10.1051/e3sconf/202020701025

Cited by 3 publications

(1 citation statement)

References 7 publications

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“…Pengukuran nilai kalor bahan bakar gas dengan pembakaran dapat dilakukan dengan menggunakan kalorimeter aliran. Konsep penentuan nilai kalor dengan cara pembakaran yang berlangsung antara bahan bakar dengan oksigen dikemukakan oleh Markowski et al [1]. Metode analisis dapat juga diperoleh dengan menjumlahkan fraksi mol produk dan nilai kalor molar yang memungkinkan untuk menghitung nilai kalor molar campuran gas [2].…”

Section: Pendahuluanunclassified

Penentuan Nilai Kalor Eksperimental LPG dengan Variasi Udara Berlebih dan Variasi Debit LPG 0,4; 0,5; dan 0,6 LPM

Santosa

Nadjib²,

Ikhsan³

et al. 2022

JMPM

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Setiap bahan bakar memiliki nilai kalor (NK) yaitu energi yang dikandung dalam setiap massa dari bahan bakar. Penentuan nilai kalor bahan bakar gas dapat dilakukan dengan kalorimeter aliran. Penelitian ini menggunakan LPG sebagai bahan penelitian. Untuk menjamin semua bahan bakar terbakar, digunakan udara berlebih (excess air). Tujuan dari penelitian ini yaitu untuk mendapatkan NK eksperimental LPG dan efisiensi kalorimeter aliran dengan variasi udara berlebih (excess air). Penelitian ini menggunakan metode pembakaran aktual dengan debit LPG 0,4; 0,5; dan 0,6 LPM dan tujuh variasi excess air (EA) 0% hingga 60% dengan interval variasi 10%. Dari hasil perhitungan didapatkan NK eksperimental dan efisiensi kalorimeter aliran yang mendekati NK LPG teoritik yaitu pada EA 50% sebesar 41.042,16 kJ/kg dan 85%. Namun pada variasi EA 60%, NK eksperimental dan efisiensi mengalami penurunan nilai yaitu 38.142,44 kJ/kg dan 78,66%. Dapat disimpulkan bahwa NK eksperimental LPG naik seiring dengan naiknya udara berlebih hingga 50% dan selanjutnya turun pada udara berlebih 60% karena penambahan udara berlebih selanjutnya akan bersifat sebagai pendinginan. Each fuel has a heating value (HV) which is the energy contained in each mass of the fuel. Determination of the heating value of gas fuel can be done with a flow calorimeter. This research uses LPG as research material. To ensure that all fuel is burned, excess air is used. The purpose of this study was to obtain experimental LPG heating value and flow calorimeter efficiency with excess air variations. This study uses the actual combustion method with an LPG discharge of 0.4; 0.5; and 0.6 LPM and seven variations of excess air (EA) from 0% to 60% with a variation interval of 10%. From the calculation results obtained experimental HV and flow calorimeter efficiency close to theoretical LPG HV, namely at 50% EA of 41,042.16 kJ/kg and 85%. However, at 60% EA variation, experimental HV and efficiency decreased in value, namely 38,142.44 kJ/kg and 78.66%, respectively. It can be concluded that the experimental HV of LPG increases with the increase in excess air by up to 50% and then decreases at 60% excess air because the addition of excess air will act as cooling.

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Section: Pendahuluanunclassified

Penentuan Nilai Kalor Eksperimental LPG dengan Variasi Udara Berlebih dan Variasi Debit LPG 0,4; 0,5; dan 0,6 LPM

Santosa

Nadjib²,

Ikhsan³

et al. 2022

JMPM

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Efficient conversion of used palm cooking oil into biogasoline over hydrothermally prepared sulfated mesoporous silica loaded with NiMo catalyst

Wijaya,

Ramadhani,

Saviola

et al. 2024

Results in Engineering

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Analysis of Calorimetric Method of Measurement of Natural Gas Calorific Value

Motalo¹,

Motalo²

2021

MEM

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The article considers the current methods of measuring the calorific value of natural gas which are valid in the upto-date gasometry. The procedure for measuring the gross and net volume-basis specific calorific value of natural gas by the calorimetric method is analyzed. It is shown that to increase the accuracy and validity of measurement results, the experiment to determine the values of gross and net volume-basis specific calorific should be performed for at least 5 samples of the investigated gas. A methodology for estimating the accuracy of measuring the gross and net volume-basis specific calorific values of natural gas by the calorimetric method by finding estimates of the uncertainty of the obtained measurement results taking into account both random and systematic influencing factors are developed. The uncertainty budgets for measuring the gross and net volumebasis-specific calorific values of natural gas have been developed for the practical implementation of the methodology. The results of experimental studies of samples of one of the natural gas fields are given and the objective values of the gross and net volumebasis specific calorific with estimates of extended uncertainty are obtained.

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The concept of measurement of calorific value of gaseous fuels

Cited by 3 publications

References 7 publications

Penentuan Nilai Kalor Eksperimental LPG dengan Variasi Udara Berlebih dan Variasi Debit LPG 0,4; 0,5; dan 0,6 LPM

Penentuan Nilai Kalor Eksperimental LPG dengan Variasi Udara Berlebih dan Variasi Debit LPG 0,4; 0,5; dan 0,6 LPM

Efficient conversion of used palm cooking oil into biogasoline over hydrothermally prepared sulfated mesoporous silica loaded with NiMo catalyst

Analysis of Calorimetric Method of Measurement of Natural Gas Calorific Value

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