Life Cycle Assessment of a combined cycle power plant in Indonesia

Abstract

This paper presents the Life Cycle Assessment (LCA) of a 640 MW combined cycle power plant located in West Java, Indonesia. The power plant adopts the dual-fuel firing system, in which both natural gas and high-speed diesel fuels are used. The LCA was performed using the open-source LCA software OpenLCA version 1.9. A functional unit of 1 kWh of electricity generation was used in calculating the environmental impacts. The system boundary was modeled using the gate-to-gate system, which includes all inputs and outputs for the following subsystems: fuel storage, water preparation, electricity production, and supporting subsystems. The life cycle inventory (LCI) used data gathered from July 2018 to June 2019. The CML-IA baseline method was used to perform the life cycle impact assessment (LCIA), providing results for ten midpoint impact categories. All impact categories were normalized using World 2000 normalization factors. The result shows that the most significant impact categories are acidification potential (AP), eutrophication potential (EP), and global warming potential (GWP), respectively. The largest acidification source is nitrogen oxide emission from the combustion chamber, with a percentage of 80.32%. Regarding the combustion stage, the post-combustion method is recommended to remove nitrogen oxide from exhaust gases to lower the AP impact category.

The Effect of Environmental Education, Consumer Awareness, and Environmentally Friendly Practices on Plastic Waste Reduction in Indonesia

“…The accumulation of plastic debris in urban waterways, landfills, and coastal areas poses significant ecological and public health risks, necessitating urgent action to mitigate its impact [6], [13]. Plastic waste management in Indonesia is relatively poorly implemented due to the limited number of recyclers, highlighting the need for alternative solutions such as converting plastic waste to paving blocks [14]. The regulation of International Law and National Law plays a crucial role in protecting the marine environment and preventing environmental pollution caused by plastic waste [7].…”

Lifecycle Assessment of the Contact Smart Card Product in Indonesia

“…The OpenLCA v.1.8.0 software was used in the study to model the Contact Smart Card and environmental impact assessment using CML-IA (baseline) method [15][16], the baseline is the most common impact category used in LCA [17]. The following impacts are considered: Human toxicity, Fresh water aquatic ecotox, Eutrophication, Marine aquatic ecotoxicity, Acidification, Global warming (GWP100a), Ozone layer depletion (ODP), Photochemical oxidation, Terrestrial ecotoxicity, Abiotic depletion and Abiotic depletion (fossil fuels) [18] as shown in Table 2.…”