scholarly journals Green House Effects and Liquid Natural Gas Generation. Modern Technologies for Liquefied Natural Gas Power Plant.

2001 ◽  
Vol 121 (12) ◽  
pp. 835-838 ◽  
Author(s):  
YOSHIKAZU HADANO
Keyword(s):  
Power Plant ◽  
Natural Gas ◽  
Liquefied Natural Gas ◽  
Gas Generation ◽  
Green House ◽  
Gas Power Plant ◽  
Liquid Natural Gas ◽  
Modern Technologies

scholarly journals Techno Economic Evaluation of Cold Energy from Malaysian Liquefied Natural Gas Regasification Terminals

Energies ◽  
2019 ◽  
Vol 12 (23) ◽  
pp. 4475 ◽  
Author(s):  
Mohd Amin Abd Majid ◽  
Hamdan Haji Ya ◽  
Othman Mamat ◽  
Shuhaimi Mahadzir
Keyword(s):  
Natural Gas ◽  
Liquefied Natural Gas ◽  
Economic Feasibility ◽  
Rate Of Return ◽  
Internal Rate Of Return ◽  
Economic Study ◽  
Cold Energy ◽  
Set Up ◽  
Liquid Natural Gas ◽  
Project Life

In order to cater for increased demand for natural gas (NG) by the industry, Malaysia is required to import liquid natural gas (LNG). This is done through PETRONAS GAS Sdn Bhd. For LNG regasification, two regasification terminals have been set up, one in Sungai Udang Melaka (RGTSU) and another at Pengerang Johor (RGTPJ). RGTSU started operation in 2013 while RGTPJ began operation in 2017. The capacities of RGTSU and RGTPJ are 3.8 (500 mmscfd) and 3.5 (490 mmscfd) MTPA, respectively. RGTSU is an offshore plant and uses an intermediate-fluid-vaporization (IFV) process for regasification. RGTPJ is an onshore plant and employs open-rack vaporization (ORV). It is known that a substantial amount of cold energy is released during the regasification process. However, neither plant captures the cold energy released during regasification. This techno economic study serves to evaluate the technical and economic feasibility of the cold energy available during regasification. It was estimated that approximately 47,214 and 88,383 kWh of cold energy could be generated daily at RGTPJ and RGTSU, respectively, during regasification processes. Converting this energy into RTh at 70% thermal efficiency, and taking the commercial rate of 0.549 Sen per RTh, for the 20-year project life, an internal rate of return (IRR) of up to 33% and 17% was estimated for RGTPJ and for RGTSU, respectively.

High efficiency power plant with liquefied natural gas cold energy utilization

2014 ◽  
Vol 87 (1) ◽  
pp. 59-68 ◽  
Author(s):  
M. Romero Gómez ◽  
R. Ferreiro Garcia ◽  
J. Carbia Carril ◽  
J. Romero Gómez
Keyword(s):  
Power Plant ◽  
Natural Gas ◽  
High Efficiency ◽  
Liquefied Natural Gas ◽  
Energy Utilization ◽  
Cold Energy

scholarly journals Rollover of Liquid Natural Gas in a Storage Tank: A Numerical Simulation

2021 ◽  
Author(s):  
Yinbin Lu ◽  
Chenwei Liang
Keyword(s):  
Natural Gas ◽  
Storage Tank ◽  
Initial Density ◽  
Critical Density ◽  
Liquefied Natural Gas ◽  
Density Difference ◽  
Storage Tanks ◽  
Exponential Functions ◽  
Double Exponential ◽  
Liquid Natural Gas

In the filling and transportation processes of liquefied natural gas (LNG), the safety of LNG storage tanks is compromised because of rollover phenomenon. As such, the rollover factors of LNG in a storage tank should be identified to prevent or weaken the rollover intensity of LNG. In this study, the rollover behavior of LNG in a storage tank is numerically simulated. The density of the two layers in a LNG storage tank is related to temperature in our numerical model. It is found that the greater the significant initial density difference (range of 1-12 kg·m-3) is, the more obvious the LNG rollover will be. A density difference of 7.5 kg·m-3 is found as the critical density difference in the present work. When the initial density difference exceeds the critical density difference, the LNG rollover coefficients increase dramatically. Moreover, an LNG rollover model with two daughter models is proposed, which are divided by the critical initial density difference, i.e., a cubic relationship between rollover coefficients and the initial density difference when the density difference is less than 7.5 kg·m-3 and secondly, a linear relationship between the rollover coefficient and the double exponential functions when the density difference is larger than 7.5 kg·m-3.

scholarly journals Assessment on Energy Conversion Efficiency and GHG Emissions Rate for Coal, Natural Gas and Biomass Power Plant in Malaysia

2021 ◽  
Vol 87 (2) ◽  
pp. 145-153
Author(s):  
Radin Diana R. Ahmad ◽  
Tiong Sieh Kiong ◽  
Sazalina Zakaria ◽  
Ahmad Rosly Abbas ◽  
Chen Chai Phing ◽  
...  
Keyword(s):  
Power Plant ◽  
Natural Gas ◽  
Energy Conversion ◽  
Conversion Efficiency ◽  
Power Plants ◽  
Emission Rate ◽  
Energy Conversion Efficiency ◽  
Combined Cycle ◽  
Gas Power Plant ◽  
Biomass Power Plant

Three different power plants have been assessed in terms of energy conversion efficiency and GHGs emission rate. The power plants are coal power plant, natural gas power plant and biomass power plant. The assessments are made by collecting fuels consumption data and generated electricity data of each power plant. In addition to the data collection, observation on operational practices have also been carried out. The energy conversion efficiency and the GHGs emission rate for all power plants are recorded to be lower than the typical values proposed by the literature. The biomass power plant recorded the lowest energy conversion efficiency at 6.47 %. Meanwhile, the natural gas power plant utilizing the combined cycle gas turbine technology recorded the highest overall energy conversion efficiency at 48.35 % and rated to emit GHGs at 0.32 kg CO2e per kWh.

Sign in / Sign up

Export Citation Format

Share Document