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Recent progress in liquid desiccant dehumidification and air-conditioning:A review

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能源与人工环境(英文) 2020年第1期1卷 106-130页

作者： Xiangjie Chen saffa Riffat Hongyu Bai Xiaofeng Zheng David Reay Department of Architecture and Built Environment University of NottinghamUniversity ParkNG72JQ NottinghamUnited Kingdom David Reay&Associates PO Box 25Whitley BayTyne&Wear NE261QTUnited Kingdom Department of Energy and Power Engineering University of Shanghai for Science and TechnologyJungong Road No.516Shanghai 200031China Centre for Renewable Energy Systems Technologies(CREST) Wolfson School of MechanicalElectrical and Manufacturing EngineeringLoughborough UniversityLeicestershire LE113TUUnited Kingdom

This paper presents a literature review on the recent research progress in liquid desiccant dehumidification and air conditioning *** physical features of various liquid desiccant materials and their dehumidification performances have been *** the aim to improve the dehumidification characteristics,mixed sol-vents desiccants have become research hot topics *** types of dehumidifiers and their integration with liquid desiccant dehumidification system have been *** combination of liquid desiccant dehumid-ification system with solar collector,vapour compression system,heat pump system,CHP system,*** been grouped and *** is shown that the majority of the recent research work for liquid desiccant dehumid-ification systems has concentrated on numerical simulations,a considerable amount of works are still required for the practical investigations of innovative material(mixed solvents)and hybrid systems.

关键词： Dehumidification Hybrid system Liquid desiccant Model Review

Effect of the spectrally selective features of the cover and emitter combination on radiative cooling performance

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能源与人工环境(英文) 2021年第3期2卷 251-259页

作者： Mingke Hu Suhendri Bin Zhao Xianze Ao Jingyu Cao Qiliang Wang saffa Riffat Yuehong Su Gang Pei Department of Architecture and Built Environment University of NottinghamUniversity ParkNottingham NG72RDUK Department of Thermal Science and Energy Engineering University of Science and Technology of ChinaHefei 230027China Department of Building Services Engineering The Hong Kong Polytechnic UniversityKowloonHong KongChina

Radiative cooling(RC)shows good potential for building energy saving by throwing waste heat to the cosmos in a passive and sustainable ***,most available radiative coolers suffer from low cooling *** situation becomes even deteriorated in the daytime when radiative coolers are exposed to direct *** tackle this challenge,an idea of employing both a spectrally selective cover and a spectrally selective emitter is proposed in this study as an alternative approach.A comparative study is conducted among four RC modules with different spectral characteristics for the demonstration of how the spectral profiles of the cover and the emitter affects the RC *** results under given conditions show that the RC module with a spectrally selective cover and a spectrally selective emitter(SC/SE)reaches a net RC power of 62.4 W/m^(2)when the solar radiation is 800 W/m^(2),which is about 1.8 times that of the typical RC module with a spectrally non-selective cover and a spectrally selective emitter(n-SC/SE).When the ambient temperature is 30°C,the SC/SE based RC module realizes a daytime sub-ambient temperature reduction of 20.0°C,standing for a further temperature decrement of 9.2°C compared to the n-SC/SE based RC module.

关键词： Radiative cooling Sky cooling Spectral selectivity Sensitive analysis Cover Solar energy

Effect of Artificial and Corn Leaves Diets on Development, Survival and Reproduction of Spodoptera frugiperda (Lepidoptera: Noctuidae) in Sierra Leone

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Advances in Entomology 2023年第2期11卷 79-94页

作者： Abu James Sundufu Johnny Ernest Norman Alusaine Edward Samura Saffea Joseph Torto Dan David Quee Marco David Tarawallie Raymonda Johnson Musa Decius saffa Sahr Ggoba Fomba Memuna Mansaray Crop Protection Department School of Agriculture and Food Science Njala University Bo Sierra Leone

The use of artificial diets to mass reared insect stock under laboratory conditions, promotes knowledge about the biology, behavior, and nutritional requirements of insects;with such information being fundamental for the formulation of efficient integrated pest management programs (IPM) strategies. However, the artificial diets used for rearing Spodoptera frugiperda (J.E. Smith) (Lepidoptera: Noctuidae) in the laboratory in this study, do not contain wheat germ, used for routine laboratory rearing. The aim of this study was to compare food preference and consumption by S. frugiperda larvae, as well as evaluate insect developmental parameters in the standard diet and the bean-based diets under laboratory conditions. Four artificial diets were used: a standard diet based on broad beans (Phaseolus vulgaris L.) used to rear S. frugiperda (D1), a diet with the substitution of two types of beans, cowpea (Vigna unguiculata L.) (D2) and pigeon pea (Cajanus cajan L) (D3);and a diet of fresh corn leaves (D4), the host plant of the pest species. Using a multiple-choice test, we observed that the larvae preferred diets D4 followed by D1. The relative consumption rate (RCR), relative growth rate (RGR), relative metabolic rate (RMR), approximate digestibility (AD), efficiency of conversion of ingested food (ECI), efficiency of conversion of digested food (ECD), and the metabolic cost (CM) for S. frugiperda fifth instar larvae varied among diets. The diet D4 resulted in better ingestion, digestion, assimilation, and conversion of food, but with a metabolic cost to assimilate the food. The different bean varieties present in the diet influenced larval length, larval periods, larval survival, pupal periods, sex ratio, pupal weight, and pupal survival;but fecundity and longevity of adults were not affected. The different bean-based diets did positively influence population growth, with the most outstanding being D4. From the results of this study, the most adequate diet for rearing S

关键词： Fertility Life Table Fall Armyworm Insect Biology Mass Rearing Nutrition

体育馆运动人体热舒适性的改进模型与实验调查

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建筑热能通风空调 2017年第5期36卷 11-15,81页

作者：季泰袁伟琪杨剑季浏 Yuehong Su saffa Riffat 青少年健康评价与运动干预教育部重点实验室华东师范大学体育与健康学院中国科学技术大学热科学能源工程系诺丁汉大学建筑学与建筑环境系

体育馆空调环境不仅会影响人体的运动效果、运动成绩,对于体育馆空调节能也有重要意义。相比于运动人员的热舒适性,传统的空调设计往往更多地关注观众的热舒适性。运动人体具有新陈代谢率大,衣着少,排汗量大以及呼吸急促的特点,传统的基... 详细信息

体育馆空调环境不仅会影响人体的运动效果、运动成绩,对于体育馆空调节能也有重要意义。相比于运动人员的热舒适性,传统的空调设计往往更多地关注观众的热舒适性。运动人体具有新陈代谢率大,衣着少,排汗量大以及呼吸急促的特点,传统的基于Fanger模型的人体热舒适性评价指标难以准确预测运动人体的热舒适性。本文针对运动人体提出了衣着覆盖率的概念,对Fanger模型中的辐射、体表扩散的模型进行适当的修正,并探讨了修正模型与Fanger模型计算结果差异。同时,采用环境测试仪和问卷调查对某高校体育馆内篮球训练类、健美操训练类和羽毛球健身类运动人体进行了大量实验调查,并将实验结果与两种模型计算结果进行对比和偏差分析,研究结果表明,修改模型PMV计算结果低于Fanger模型且更接近实测结果,这表明对于运动人体,适宜的场馆环境温度可以比采用Fanger模型得到的传统的空调温度更高,对于空调节能具有重要意义。

关键词：运动人体新陈代谢率热舒适性 PMV 体育馆

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运动中人体热感觉预测模型的建立与验证

运动中人体热感觉预测模型的建立与验证