Đánh giá tiềm năng tiết kiệm năng lượng của một số giải pháp lớp vỏ bao che công trình cho một tòa nhà văn phòng được giả định xây dựng tại 03 thành phố có điều kiện khí hậu khác nhau ở Việt Nam=Assessing energy saving potential of building envelope solutions for an office building assumed to be constructed in 03 cities with different climate conditions in Vietnam

0 Người đánh giá. Xếp hạng trung bình 0

Tác giả: Công Thịnh Nguyễn, Đức Lượng Nguyễn, Hoàng Hiệp Nguyễn

Ngôn ngữ: vie

Ký hiệu phân loại:

Thông tin xuất bản: Tạp chí Xây dựng, 2024

Mô tả vật lý: tr.104

Bộ sưu tập: Metadata

ID: 483997

Thêm vào giỏ

Mục tiêu chính của nghiên cứu này là thực hiện mô phỏng, đánh giá cường độ sử dụng năng lượng của một công trình tòa nhà văn phòng được giả định xây dựng ở 03 thành phố điển hình thuộc các vùng khí hậu khác nhau của Việt Nam: TP Hà Nội (thuộc vùng khí hậu Đồng bằng Bắc Bộ), TP Đà Nẵng (thuộc vùng khí hậu Nam Trung Bộ), TP.HCM (thuộc vùng khí hậu Đông Nam Bộ). Nội dung mô phỏng năng lượng cho tòa nhà văn phòng được thực hiện theo 02 kịch bản với việc tập trung đánh giá một số giải pháp khác nhau đối với lớp vỏ bao che công trình (tường bao, cửa sổ kính, mái). Kịch bản cơ sở (KBCS) xem xét áp dụng các giải pháp truyền thống đối với lớp vỏ bao che của tòa nhà văn phòng như sử dụng gạch đỏ cho tường bao, sử dụng kính đơn thông thường cho cửa sổ kính, mái bằng không có vật liệu cách nhiệt. Trong khi đó, kịch bản tiết kiệm năng lượng (KBTKNL) xem xét áp dụng một số giải pháp tiết kiệm năng lượng đối với lớp vỏ bao che như sử dụng gạch bê tông khí chưng áp (AAC) cho tường bao, sử dụng kính hai lớp low E phủ mềm cho cửa sổ kính, mái bằng có sử dụng vật liệu cách nhiệt EPS. Kết quả mô phỏng năng lượng cho thấy việc sử dụng kết hợp đồng thời các giải pháp tiết kiệm năng lượng đối với kết cấu vỏ bao che của tòa nhà văn phòng theo KBTKNL có thể đem lại mức tiết kiệm năng lượng đáng kể (khoảng 17,44-22,49% tổng tiêu thụ năng lượng của tòa nhà văn phòng) so với KBCS. Kết quả nghiên cứu cũng cho thấy các giải pháp tiết kiệm năng lượng khác nhau đối với các kết cấu vỏ bao che khác nhau (tường bao, cửa sổ kính, mái) ứng dụng đối với tòa nhà văn phòng được xây dựng ở các địa phương với điều kiện khí hậu khác nhau, có thể đem lại tiềm năng tiết kiệm năng lượng khác nhau. Từ khóa: Tòa nhà văn phòng
mô phỏng năng lượng
cường độ sử dụng năng lượng (EUI)
lớp vỏ bao che công trình.The main objective of this study is to simulate and evaluate the energy use intensity (EUI) of an office building assumed to be built in 03 typical cities in different climate zones of Vietnam: Ha Noi City (in the Northern Delta climate zone), Da Nang City (in the South Central Coast climate zone), and Ho Chi Minh City (in the Southeast climate zone). The energy simulation for the office building is carried out under 02 scenarios with a focus on evaluating different solutions for the building envelope (external walls, windows, and roofs). The baseline scenario considers applying the traditional solutions for building envelope such as red brick for external walls, conventional single glazing for windows, and non-insulated flat roof. Meanwhile, the energy saving scenario considers applying energy saving solutions such as use of autoclaved aerated concrete (AAC) brick for external walls, soft-coated low-E double-glazing, and flat roof using EPS insulation material. The energy simulation results show that the simultaneous use of energy saving solutions for the building envelope under the energy saving scenario could bring significant energy savings (about 17.44-22.49% of the total energy consumption of the studied office building) compared to those under the baseline scenario. The research results also indicate that different energy saving solutions for different envelope structures (external walls, windows, and roofs) applied to office buildings built in localities with different climatic conditions could have different energy saving potentials. Key words: Office building
Energy simulation
Energy use intensity (EUI)
Building envelope.

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