電子代工廠溫室氣體盤查及減量策略之探討;Investigation on GHG Emissions from Electronic Manufacturing Processes and Reduction Strategies

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題名:	電子代工廠溫室氣體盤查及減量策略之探討;Investigation on GHG Emissions from Electronic Manufacturing Processes and Reduction Strategies
作者:	游嘉芳;Yu, Chia-Fang
貢獻者:	環境工程研究所在職專班
關鍵詞:	溫室氣體;電子代工廠;減量策略;GHG Inventory, Electronic Manufacturing Processes, Reduction Strategies
日期:	2023-07-31
上傳時間:	2024-09-19 17:35:27 (UTC+8)
出版者:	國立中央大學
摘要:	本研究依據ISO14064-1:2018標準、環保署溫室氣體盤查作業指引為準則，以某電子代工廠為對象進行2021年度溫室氣體排放量盤查與量化，透過盤查結果找出排放熱點，幫助企業掌握自身溫室氣體排放狀況，不僅是逐步降低溫室氣體排放量的基礎，更是成功邁向淨零的關鍵。研究結果顯示，A廠2021年溫室氣體排放總量為54,091.71公噸CO2e/年，類別一佔總排放量1.35%，主要來自冷媒、滅火器、化糞池及公務車用油；類別二佔總排放量11.22%，皆來自外購電力；類別三佔總排放量0.12%，主要來自交通車與商務旅行；類別四佔總排放量2.25%，主要來自外購商品之上游及廢棄物、廢水處置之排放；類別五佔總排放量85.07%，主要來自銷售產品之使用。比較相同產業他廠之溫室氣體排放數據，發現能源間接排放皆佔九成以上，可見電子代工產業之溫室氣體排放主要來自能源間接排放。依盤查分析結果，A廠擬訂六項節能減量措施，預計共節電1799.07千度/年，減少溫室氣體排放量915.73公噸CO2e/年，各項節能措施中，減碳效益最低者為辦公室汰換老舊LED燈管，原因為LED燈管成本較高，原舊型LED燈管與新型功率差異並不大；減碳效益最高者為空壓機改為變頻控制，如以降低溫室氣體為目標而言較為顯著，單位投資成本減碳效益也最高。;Based on the ISO 14064-1:2018 standard and the EPA′s guidelines, this study investigates the characteristics of green-house gas (GHG) emission from electronic manufacturing processes. It focuses on conducting a GHG emission inventory and quantification for an electronic manufacturing factory for the year 2021. The aim is to identify emission hotspots and assist the company in understanding its GHG emission, which is not only the foundation for reducing GHG emissions but also crucial for achieving net-zero emissions. The results show that in 2021, factory A had a total GHG emission of 54,091.71 metric tons of CO2e/year. Category 1 accounted for 1.35% of the total emissions and was mainly from refrigerants, fire extinguishers, septic tanks, and government vehicle fuel. Category 2 accounted for 11.22% of the total emissions and totally came from purchased electricity. Category 3 accounted for 0.12% of the total emissions and primarily came from transportation vehicles and business travel. Category 4 accounted for 2.25% of the total emissions and mainly came from upstream emissions of purchased goods and waste, wastewater disposal. Category 5 accounted for 85.07% of the total emissions and was primarily from the use of sold products. When comparing the GHG emission data of other companies in the same industry, it was found that indirect energy emissions accounted for over 90%. It is evident that the GHG emission in the electronic manufacturing industry mainly come from indirect energy emissions. Based on the inventory analysis, factory A has proposed six energy-saving and emission reduction strategies, which are expected to save a total of 1799.07 kWh/year of electricity and reduce GHG emission by 915.73 metric tons of CO2e/year. Among the energy-saving measures, the lowest carbon reduction benefit is the replacement of old LED lights in the office, mainly because LED lights have a higher cost and the difference in power consumption between the old and new models is not significant. The greatest carbon reduction benefit can be achieved by converting the air compressor to variable frequency control, which is effective in reducing GHG emission and has the highest carbon reduction benefit per unit investment cost.
顯示於類別:	[環境工程研究所碩士在職專班] 博碩士論文

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