Thermal analysis and performance optimization of a solar hot water plant with economic evaluation

Solar Energy ◽  
2012 ◽  
Vol 86 (5) ◽  
pp. 1378-1395 ◽  
Author(s):  
Young-Deuk Kim ◽  
Kyaw Thu ◽  
Hitasha Kaur Bhatia ◽  
Charanjit Singh Bhatia ◽  
Kim Choon Ng
Keyword(s):  
Thermal Analysis ◽  
Economic Evaluation ◽  
Performance Optimization ◽  
Hot Water ◽  
Water Plant ◽  
And Performance

Thermal Analysis and Performance Optimization of Quantum Dots in LEDs by Microsphere Model

2019 ◽  
Vol 66 (9) ◽  
pp. 3896-3902 ◽  
Author(s):  
Dongdong Yang ◽  
Yangyang Xie ◽  
Chong Geng ◽  
Chongyu Shen ◽  
Jay Guoxu Liu ◽  
...  
Keyword(s):  
Thermal Analysis ◽  
Quantum Dots ◽  
Performance Optimization ◽  
And Performance ◽  
Microsphere Model

scholarly journals SWIPT in mMIMO system with non-linear energy-harvesting terminals: protocol design and performance optimization

2019 ◽  
Vol 2019 (1) ◽  
Author(s):  
Kui Xu ◽  
Ming Zhang ◽  
Jie Liu ◽  
Nan Sha ◽  
Wei Xie ◽  
...  
Keyword(s):  
Energy Harvesting ◽  
Performance Optimization ◽  
Power Transmission ◽  
Base Station ◽  
Second Phase ◽  
Wireless Power ◽  
Half Duplex ◽  
Non Linear ◽  
Two Phases ◽  
And Performance

Abstract In this paper, we design the simultaneous wireless information and power transfer (SWIPT) protocol for massive multi-input multi-output (mMIMO) system with non-linear energy-harvesting (EH) terminals. In this system, the base station (BS) serves a set of uplink fixed half-duplex (HD) terminals with non-linear energy harvester. Considering the non-linearity of practical energy-harvesting circuits, we adopt the realistic non-linear EH model rather than the idealistic linear EH model. The proposed SWIPT protocol can be divided into two phases. The first phase is designed for terminals EH and downlink training. A beam domain energy beamforming method is employed for the wireless power transmission. In the second phase, the BS forms the two-layer receive beamformers for the reception of signals transmitted by terminals. In order to improve the spectral efficiency (SE) of the system, the BS transmit power- and time-switching ratios are optimized. Simulation results show the superiority of the proposed beam-domain SWIPT protocol on SE performance compared with the conventional mMIMO SWIPT protocols.

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