A research of high methane fraction natural gas was investigated in a constant volume combustion vessel at different initial conditions. Results show that with the increase of the initial pressure, the specific heat ratio is decreased, and the time of the mixture burned up is postponed, while ...
Natural Gas In subject area: Engineering Natural gas is a mixture of methane, ethane, propane, butane and other hydrocarbons, water vapor, oil and condensates, hydrogen sulfides, carbon dioxide, nitrogen, some other gases and solid particles. From: Reservoir Development, 2022 About this pageSet ...
A colorimeter equipped with a gas booster in conjunction with a PVT cell was used to measure the heat capacity of natural gas with different amounts of impurities. Based on new experimental and literature data, a general investigation of the isobaric specific heat capacity was carried out using ...
5b as a function of the ratio of the mean temperature drop between plates and the modulation amplitude: ⟨ΔT⟩/AT. This key parameter naturally controls the effect of modulation on heat transfer and fluid temperature in RBC. Above about two, ξ0 approaches ξ(Ra) and the conventional ...
CCHP;heat/electricity ratio;natural gas engine;ignition timing 1. Introduction With the development of the economy, people pursue a higher quality of life. The living environment, such as shopping centers, hospitals, office buildings, and residential communities, needs an air condition system for ref...
oil and natural gas prices were correlated—they tended to go up and down together. Yet, often enough in recent years, when oil prices surge, natural gas prices remain surprisingly subdued. This leaves consumers and investors alike wondering: do oil and natural gas prices still rise and ...
molecular weight and heat capacity ratio • Molecular weight, need relative density (gravity) • Reynolds number, need density and viscosity • Wobbe index, need calorific value and relative density • Hydrates and water, need water vapour in natural gas (diagram or PVT package) 13 Real...
Compressed Natural Gas (CNG) is the best and cheap fuel . It has replaced petrol and diesel fuel as it is considered as clean fual. CNG consists of around 90% methane , by compressing it to less than 1% of volume it occupies at standard atmospheric pres
Theratioofgaspressure,temperatureanddensitytoits criticalpressure,criticaltemperatureandcriticaldensity iscalledgascontrastpressure,contrasttemperatureand contrastdensity. TheexpressionofcompressiblepressureP,thedensityofthe gaspressure(ormolarvolumeV)andtherelationshipbetween ...
Natural gas (NG) is a mixture of different hydrocarbons and minor gases. Along the flow of liquefaction, its specific heat varies significantly over temperature, depending on the pressure and composition.Fig. 2shows the temperature–entropy (T–s) diagram and the specific heat (at constant pressu...