Yêu cầu về hiệu suất kỹ thuật-eco tối ưu cho đơn vị khử muối bằng năng lượng mặt trời sử dụng bộ thu ống hình vòng chân không kết hợp với bộ tập trung parabol sửa đổi

Springer Science and Business Media LLC - Tập 29 - Trang 34379-34405 - 2022
Ashok Kumar Singh1,2, Samsher Gautam1
1Department of Mechanical Engineering, Delhi Technological University, Delhi, India
2Mechanical Engineering Department, Galgotias College of Engineering and Technology, Greater Noida, India

Tóm tắt

Nghiên cứu này trình bày một phương pháp mới cho hệ thống khử muối bằng năng lượng mặt trời hai độ dốc với dãy song song của bộ thu ống hình vòng chân không kết hợp với bộ tập trung parabol sửa đổi (DS-SDS-EATC-MCPC), được nghiên cứu theo yêu cầu về thiết kế sinh thái nhằm tối ưu hiệu suất và khả năng kinh tế - môi trường. Giải pháp được đề xuất được cấu hình để đạt được nhiệt độ tối ưu nhất của bể là 99,6 °C với chiều sâu nước lớn hơn (0,16 m) cho hướng mặt trời tại hướng Đông-Tây của bề mặt bể (30°) cùng với ống hình vòng chân không hướng Nam (30°). Tốc độ tuần hoàn cao nhất (thermo siphon) đạt được khoảng 55 kg/h. Hiệu suất tổng quát (năng lượng-exergy) của hệ thống lần lượt là 46,53% và 3,62%. Lượng nước tinh khiết hàng ngày (16,94 kg) và chi phí sản xuất của nó (năng lượng 0,007 USD/kWh; exergy 0,013 USD/kWh) với giá bán dự kiến (0,07 USD/l) vẫn giữ được tính hợp lý. Lượng CO2 giảm thiểu (năng lượng-exergy) và tín chỉ xanh thu được lần lượt là 139,74 và 77,30 tấn, và 1396 USD và 772,24 USD. Chi phí xây dựng của hệ thống chỉ là 200,79 USD, và năng suất của mô hình được thiết lập > 100%, cho thấy hệ thống này là hiện thực và có tính khả thi. Lượng nước tinh khiết rõ ràng với chi phí vận hành thấp, lợi ích sinh thái lớn, giảm thiểu hiệu quả cao và thời gian hoàn vốn ngắn khiến hệ thống này bền vững, khả thi cho các khu vực thu thập hợp lý, và tối ưu EATC với MCPC theo yêu cầu thiết kế sinh thái cho giải pháp được dự kiến đệ trình.

Từ khóa

#khử muối bằng năng lượng mặt trời #bộ thu ống hình vòng chân không #hiệu suất năng lượng #thiết kế sinh thái #tiết kiệm năng lượng #CO2 giảm thiểu

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