An evaluation methodology with applied life-cycle assessment of coal-biomass cofiring in Philippine context

Clicks: 1
ID: 286973
2017
Free PDF
Article Quality & Performance Metrics
Overall Quality
Not rated
Combines reader engagement with the AI quality analysis. This article has not been analysed, so there is no overall score — reader engagement is measured and shown alongside.
AI Quality Assessment
Not analyzed
Readership in this journal

Ranked #3,361 of 3,757 articles by views in Malay Journal

Most read Least read

Bar heights use a square-root scale. Only the 120 most-read articles are drawn; the journal has 3,757 in total.

Mint this article as an NFT
Not yet minted

Create a permanent, verifiable on-chain record of this article on the Scimatic Network. The NFT is held in your Journament account, and you can withdraw it to your own wallet at any time.

5 SUSD one-off · no wallet required
Sign in to mint
Abstract
The present study proposes an evaluation methodology assessing the environmental impact of coal-biomass cofiring with three major stages: resources and logistics mapping, environmental life-cycle assessment and results analysis and prediction. It presents novelty through the inclusion of the first stage which evaluates the actual biomass resource availability and logistics. It also reviews the technological capabilities and limitations for cofiring. It appends the third stage which predicts the optimal conditions for the local deployment of coal-biomass cofiring. Three types of locally available biomass were evaluated for theoretical and technical potential: primary and secondary agricultural residues, forest biomass and energy crop. Primary agricultural residue or rice straw is the most dependable biomass which can replace 7.53% of the total fuel energy input from coal. The study then sets three evaluation scenarios: the base case scenario of pure coal combustion and the two cofiring scenarios at 5% and 7.53% biomass share. Impact assessment reveals a GHG emission of 2.93 Mtons of CO2 eq. per year from pure coal combustion, 2.81 Mtons from cofiring at 5% biomass share and 2.74 Mtons from cofiring at 7.53% biomass share. GHG emission is lowest from cofiring at 7.53% biomass share which can potentially reduce the emission from pure coal combustion by 6.62%. Cofiring at 5% biomass share can potentially reduce the emission by 4.39%. In terms of nonrenewable energy consumption, coal combustion consumes 28.06 GJ of primary energy whereas cofiring at 5% biomass share consumes 26.69 GJ of primary energy and cofiring at 7.53% consumes 25.99 GJ of primary energy. Cofiring at 5% and 7.53% biomass share presents 4.90% and 7.38% reduction in nonrenewable energy consumption from the base case. Meanwhile, sensitivity analysis shows that biomass availability is the most significant factor that affects the reduction of GHG emission and nonrenewable energy consumption in cofiring. The share of biomass in total energy input is another significant factor that affects cofiring. Coal quality and rice straw quality in terms of heating value show slightly significant impact. The transportation distance and diesel consumption for biomass logistics have very minimal effect in the environmental impact of the whole cofiring system.
Reference Key
persistent_1760660218_68f18afa395c6 Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Martinez, Dan William C.
Journal Malay Journal
Year 2017
DOI
DOI not found
URL
https://animorepository.dlsu.edu.ph/etd_masteral/5823
Keywords Keywords not found

Citations

No citations found. To add a citation, contact the admin at info@scimatic.org

Comments

No comments yet. Be the first to comment on this article.