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How diplomacy saved the COP21 Paris Climate Conference, but now, can we save ourselves?
D. Nathaniel MULCAHY, David L. MULCAHY
《能源前沿（英文）》 2018年 第12卷 第3期 页码 344-352 doi: 10.1007/s11708-017-0498-y
To solve a problem, three things are necessary: awareness, means, and will. The 2015 COP21 Paris accord was a masterful, perhaps even world-saving, diplomatic advance toward making the world aware of climate change. Some of that success may have been because publications from the IPCC and the National Academy of Science were made available, on line, as prepublication offerings, in order to be widely viewed before the Paris Climate Conference. This provided diplomats and negotiators with the latest information about climate change, its nearness in time, its consequences, and how well current mitigation technologies can succeed. Whatever the reasons, the Paris Climate Conference, was a success. Leaders of 195 nations agreed that climate change is a real and present danger to life as is known to all. This important understanding was accomplished despite the presentation of well established scientific facts which, without very diplomatic handling, could easily have evoked overwhelming political opposition to an agreement and thus another COP failure. In this paper, the fact that how some scientific truths, written specifically to be overlooked, were presented in order to prepare COP21 participants for the conference is explained. Besides, the effectiveness and efficiency of currently favored mitigation policies, the extent of ongoing progress to better ones, and finally, how a new appreciation of climate change consequences can strengthen the will of nation states and industries to work toward solutions are evaluated.
>In situ growth of phosphorized ZIF-67-derived amorphous CoP/Cu2O@CF electrocatalyst
《化学科学与工程前沿（英文）》 2023年 第17卷 第10期 页码 1430-1439 doi: 10.1007/s11705-023-2320-1
ZnO nanorefrigerant in R152a refrigeration system for energy conservation and green environment
D. SENDIL KUMAR,R. ELANSEZHIAN
《机械工程前沿（英文）》 2014年 第9卷 第1期 页码 75-80 doi: 10.1007/s11465-014-0285-y
In this paper the reliability and performance of a vapour compression refrigeration system with ZnO nanoparticles in the working fluid was investigated experimentally. Nanorefrigerant was synthesized on the basis of the concept of the nanofluids, which was prepared by mixing ZnO nanoparticles with R152a refrigerant. The conventional refrigerant R134a has a global warming potential (GWP) of 1300 whereas R152a has a significant reduced value of GWP of 140 only. An experimental test rig is designed and fabricated indigenously in the laboratory to carry out the investigations. ZnO nanoparticles with refrigerant mixture were used in HFC R152a refrigeration system. The system performance with nanoparticles was then investigated. The concentration of nano ZnO ranges in the order of 0.1% v, 0.3% v and 0.5%v with particle size of 50 nm and 150 g of R152a was charged and tests were conducted. The compressor suction pressure, discharge pressure and evaporator temperature were measured. The results indicated that ZnO nanorefrigerant works normally and safely in the system. The ZnO nanoparticle concentration is an important factor considered for heat transfer enhancement in the refrigeration system. The performance of the system was significantly improved with 21% less energy consumption when 0.5%v ZnO-R152a refrigerant. Both the suction pressure and discharge pressure were lowered by 10.5% when nanorefrigerant was used. The evaporator temperature was reduced by 6% with the use of nanorefrigerant. Hence ZnO nanoparticles could be used in refrigeration system to considerably reduce energy consumption. The usage of R152a with zero ozone depleting potential (ODP) and very less GWP and thus provides a green and clean environment. The complete experimental results and their analysis are reported in the main paper.
关键词： ZnO nanorefrigerant reduced GWP COP pressure ratio green energy
Gorakshnath TAKALKAR, Ahmad K. SLEITI
《能源前沿（英文）》 2022年 第16卷 第3期 页码 521-535 doi: 10.1007/s11708-021-0720-9
关键词： ionic liquid driven absorption cycle H2O-[mmim][DMP] coefficient of performance (COP) exergy analysis thermodynamics mixture property
标题 作者 时间 类型 操作
How diplomacy saved the COP21 Paris Climate Conference, but now, can we save ourselves?
D. Nathaniel MULCAHY, David L. MULCAHY
期刊论文
ZnO nanorefrigerant in R152a refrigeration system for energy conservation and green environment
D. SENDIL KUMAR,R. ELANSEZHIAN
期刊论文
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