Study on the Retrofit of Near-Zero Carbon Lighting in Existing Office Buildings

Abstract

<p>在建築領域中，照明被視為能源消耗的主要貢獻者之一。透過適當的設計來降低照明需求，實現照明的能源效益，對於照明改造項目而言是一項至關重要的策略。本研究的目標是探討既有辦公建築中近零碳照明改造的評估方法。透過研究各燈具同時符合照度需求及能耗上限之面積-盞數對照圖，以及統計計算各對照圖之單盞服務面積，提供一種更快、更簡單和更準確的方法，用於既有辦公建築中的近零碳照明改造，最終降低改造成本。本研究顯示，在現有辦公建築中進行近零碳照明改造，有三種簡單直接的方法可以確定需要改造的照明設備數量，第一種為光通量計算法，第二種為模擬照度對照圖法，第三種則為單盞服務面積法。研究結果顯示，當在「112年度公有既有建築物能效評估補助作業及淨零示範計畫」中使用本研究提出的評估方法時，可以確保改造空間的照明需求和節能標準，實現快速而準確地確定所需的照明設備數量，從而降低整體改造預算。以該淨零示範計畫為例，整體照明改造預算可以減少60％，節省高達19,238,000元的費用。此外，對於使用LED照明設備進行現有辦公建築中的近零碳照明改造，本研究建議將其容許耗用能源標準（MEPS）值應訂為100lm/W以上，且改造之燈具應採用有節能標章的燈具，以確保改造既滿足節能要求，也滿足照度需求，從而實現近零碳照明改造的目標。</p> <p> </p><p>In the field of architecture, lighting is regarded as one of the primary contributors to energy consumption. Achieving energy efficiency in lighting through appropriate design is a critical strategy for lighting retrofit projects. The goal of this study is to investigate evaluation methods for near-zero-carbon lighting retrofits in existing office buildings. By examining area-lamp count charts that simultaneously meet illuminance requirements and energy consumption limits and statistically calculating the single-lamp service area for each chart, a faster, simpler, and more accurate method is provided for near-zero-carbon lighting retrofits in existing office buildings, ultimately reducing retrofit costs. This study demonstrates that there are three simple and direct methods for determining the necessary number of lighting fixtures to be retrofitted in existing office buildings for near-zero-carbon lighting retrofits. The first method is the luminous flux calculation, the second is the simulated illuminance chart method, and the third is the single-lamp service area method. The research results indicate that when the evaluation methods proposed in this study are applied in the "Energy Efficiency Assessment Subsidy Operation and Net-Zero Demonstration Program for Existing Public Buildings in the 112th Fiscal Year," they can ensure that the lighting requirements and energy-saving standards in retrofit spaces are met, allowing for a rapid and accurate determination of the required number of lighting fixtures, thus reducing the overall retrofit budget. Using the Net-Zero Demonstration Program as an example, the overall lighting retrofit budget can be reduced by 60%, saving up to 19,238,000 yuan. Furthermore, for near-zero-carbon lighting retrofits in existing office buildings using LED lighting fixtures, this study recommends setting the Minimum Energy Performance Standards (MEPS) value at 100lm/W or higher and using energy-efficient certified fixtures to ensure that the retrofit meets both energy-saving and illuminance requirements, thereby achieving the goal of near-zero-carbon lighting retrofits.</p> <p> </p>