Cải tạo lớp vỏ công trình hướng tới tiết kiệm năng lượng trong nhà ống - Trường hợp nghiên cứu tại Hà Nội

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Tác giả: Phan Anh Nguyễn

Ngôn ngữ: vie

Ký hiệu phân loại:

Thông tin xuất bản: Tạp chí Khoa học Kiến trúc & Xây dựng, 2024

Mô tả vật lý: tr.4

Bộ sưu tập: Metadata

ID: 487145

Thêm vào giỏ

Bài viết này nghiên cứu tiềm năng tiết kiệm năng lượng của các phương án cải tạo mặt đứng khác nhau trong nhà ống ở Việt Nam. Kết quả mô phỏng cho thấy, áp dụng quy chuẩn kỹ thuật Việt Nam có thể tiết kiệm tới 9% trong khi lớp vỏ có khả năng cách nhiệt cao theo tiêu chuẩn Hà Lan có thể giảm tới 21% mức tiêu thụ năng lượng điều hòa không khí. Cần lưu ý là những kết quả trên chỉ đạt được khi máy điều hòa không khí hoạt động vào ban đêm, giống như cách hệ thống hiện đang hoạt động trong ngôi nhà tham khảo. Các thiết bị che nắng cũng đã được thử nghiệm trên cửa sổ mặt tiền hướng Tây Nam. Các ô văng mang lại kết quả rất hạn chế, giảm năng lượng làm mát dưới 6%. Lam chắn nắng bên ngoài có thể tiết kiệm tới 12,6% năng lượng làm mát. Tuy nhiên, do cả ba loại cấu kiện che nắng đều có tác động tiêu cực trong mùa đông nên mức tiết kiệm năng lượng tối đa hàng năm chỉ là 7%. Abstract This paper investigated the energy upgrade potentials of different facade refurbishment options in tube houses of Vietnam. The simulation results showed that applying Vietnamese technical regulation can save up to 9% of energy for heating and cooling while highly insulated facade that followed Dutch standards led to much more favourable results of 21% reduction in air conditioner consumption. It is worth to note that such improvement was by far only achieved with a night-time operation of air-conditioner, as how the system is currently working in the reference house. Shading devices were also tested on a southwest facade window. Horizontal overhang had very limited benefit of less than 6% reduction in cooling energy. An external blind can save up to 12.6% of cooling energy. However, as all three shading types had a negative effect in heating season, the maximum annual saving was only 7%.

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