Energy retrofits of Venlo-type greenhouses in the severe cold region using active and passive energy-saving technologies

IF 4.9 2区工程技术 Q2 ENERGY & FUELS

Energy for Sustainable Development Pub Date : 2025-07-28 DOI:10.1016/j.esd.2025.101791

Bo Li , Yannan Shi , Wei Jiang , Kuan Zhang , Gongliang Liu , Ruitong Yang , Wei Guo , Fucheng Wang , Dong Li

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引用次数: 0

Abstract

This research focuses on Venlo-type greenhouses (VG) in severe cold regions, where active and passive energy-saving technologies are employed to decrease energy consumption. By adding photovoltaic (PV) panels on its southern roof, we transformed into a rooftop photovoltaic Venlo-type greenhouse (PVG), and 49 cases were formed by changing the number of glass layers, filling different types of gases, and adjusting the thickness of the gas layer. The energy consumption of the retrofit cases was finely simulated by EnergyPlus software, and calculated carbon emission reduction (CER), retrofit cost (RC), and payback period (PP). A research employing an entropy weight method was conducted to assess the energy-saving rate (ESR), CER, RC, and PP across different retrofit scenarios. Through comprehensive evaluation, we selected the optimal case. The results demonstrated that the optimal energy-saving retrofit case with the highest comprehensive score is a triple-layer glass PVG (Tc9) with an ESR of 59.91 %, CER of 32,748.45 kg, and a recovery period of 3.12 years, using a 9 mm Krypton gas interlayer. The research's findings provide a dependable and unbiased theoretical foundation for energy saving retrofit of VG, which can promote the development of the VG and PVG.

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利用主动和被动节能技术对严寒地区venlo型温室进行能源改造

本研究的重点是在严寒地区的venlo型温室（VG），其中采用主动和被动节能技术来降低能源消耗。通过在南屋顶增加光伏（PV）面板，改造为屋顶光伏venlo型温室（PVG），通过改变玻璃层数，填充不同类型的气体，调节气体层厚度，形成49个case。利用EnergyPlus软件对各改造案例的能耗进行精细模拟，计算出碳减排量（CER）、改造成本（RC）和投资回收期（PP）。采用熵权法对不同改造方案下的节能率（ESR）、CER、RC和PP进行了评价。通过综合评价，选择最优方案。结果表明，采用9 mm氪气夹层的三层玻璃PVG （Tc9）节能改造方案的ESR为59.91%，CER为32,748.45 kg，回收期为3.12年，综合评分最高。研究结果为VG的节能改造提供了可靠、公正的理论依据，对VG和PVG的发展具有促进作用。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Energy for Sustainable Development ENERGY & FUELS-ENERGY & FUELS

CiteScore

8.10

自引率

9.10%

发文量

187

审稿时长

6-12 weeks

期刊介绍： Published on behalf of the International Energy Initiative, Energy for Sustainable Development is the journal for decision makers, managers, consultants, policy makers, planners and researchers in both government and non-government organizations. It publishes original research and reviews about energy in developing countries, sustainable development, energy resources, technologies, policies and interactions.