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11 results on '"Pan, Xincheng"'

1. Comparative transcriptomics revealed enhanced light responses, energy transport and storage in domestication of cassava (Manihot esculenta)

Author

Zhiqiang XIA,Xin CHEN,Cheng LU,Meiling ZOU,Shujuan WANG,Yang ZHANG,Kun PAN,Xincheng ZHOU,Haiyan WANG,Wenquan WANG

Subjects
cassava, comparative transcriptomics, energy transport, photosynthesis, starch synthesis, Agriculture (General), S1-972
Abstract

Cassava is a staple food, feed and bioenergy crop important to the world especially in the tropics. Domesticated cassava is characterized by powerful carbohydrate accumulation but its wild progenitor is not. Here, we investigated the transcriptional differences of eight cDNA libraries derived from developing leaf, stem and storage root of cassava cv. Arg7 and an ancestor line, W14, using next generation sequencing system. A total of 41302 assembled transcripts were obtained and from these, 25961 transcripts with FPKM ≥3 in at least one library were named the expressed genes. A total of 2117, 1963 and 3584 transcripts were found to be differentially expressed in leaf, stem and storage root (150 d after planting), respectively, between Arg7 and W14 and ascribed to 103, 93 and 119 important pathways in leaf, stem and storage root, respectively. The highlight of this work is that the genes involved in light response, such as those for photosystem I (PSA) and photosystem II (PSB), other genes involved in light harvesting, and some of the genes in the Calvin cycle of carbon fixation were specially upregulated in leaf. Genes for transport and also for key rate-limiting enzymes (PFK, PGK and PK, GAPDH) coupling ATP consumption in glycolysis pathway were predominantly expressed in stem, and genes for sucrose degradation (INVs), amylose synthesis (GBSS) and hydrolysis (RCP1, AMYs), the three key steps of starch metabolism, and transport associated with energy translocation (ABC, AVPs and ATPase) and their upstream transcription factors had enhanced expression in storage root in domesticated cassava. Co-expression networks among the pathways in each organs revealed the relationship of the genes involved, and uncovered some of the important hub genes and transcription factors targeting genes for photosynthesis, transportation and starch biosynthesis.

Published
2016
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10. Optimal planning of solar PV and battery storage with energy management systems for Time‐of‐Use and flat electricity tariffs

Author

Xincheng Pan, Rahmat Khezri, Amin Mahmoudi, SM Muyeen, Pan, Xincheng, Khezri, Rahmat, Mahmoudi, Amin, and Muyeen, SM

Subjects
battery energy storage, electricity tariffs, Renewable Energy, Sustainability and the Environment, energy management systems, solar photovoltaic (PV)
Abstract

Refereed/Peer-reviewed This paper determines the optimal capacity of solar photovoltaic (PV) and battery energy storage (BES) with novel rule-based energy management systems (EMSs) under flat and time-of-use (ToU) tariffs. Four schemes are investigated based on the combinations of flat and ToU tariffs for buying and selling the electricity: (1) Flat-Flat, (2) ToU-Flat, (3) Flat-ToU, and (4) ToU-ToU. For each scheme, two configurations are evaluated: (i) PV only, and (ii) PV-BES. The optimization of the grid-connected household is evaluated based on one-year realistic data. An uncertainty analysis is presented based on the variations of insolation, temperature, and load. Sensitivity analyses are implemented based on the average daily load, the grid constraint, and the costs of PV and BES. The operational analyses for 48 h in summer and winter are carried out to evaluate the dynamic performance of the systems for high and low solar insolation. The effectiveness of the proposed model is verified by comparing the results with that of common EMS based on the net metering scheme. It is found that the COE of the proposed EMS for a PV-BES house with ToU-Flat scheme (as the best option) is 2 ¢/kWh lower than that of the net metering scheme.

Published
2022

11. Energy management systems for grid-connected houses with solar pv and battery by considering flat and time-of-use electricity rates

Author

Gm. Shafiullah, Amin Mahmoudi, Xincheng Pan, Amirmehdi Yazdani, Rahmat Khezri, Pan, Xincheng, Khezri, Rahmat, Mahmoudi, Amin, Yazdani, Amirmehdi, and Shafiullah, GM

Subjects
Battery (electricity), Technology, grid-connected household, Control and Optimization, Energy management, Australia, battery energy storage, electricity cost analysis, flat electricity rate, home energy management system, rooftop solar PV, time of use tariffs, Energy Engineering and Power Technology, Automotive engineering, Electrical and Electronic Engineering, Engineering (miscellaneous), Operating cost, Consumption (economics), Renewable Energy, Sustainability and the Environment, business.industry, Photovoltaic system, Grid, Purchasing, Environmental science, Electricity, business, Energy (miscellaneous)
Abstract

This paper develops new practical rule-based energy management systems (EMSs) for typical grid-connected houses with solar photovoltaic (PV) and battery by considering different rates for purchasing and selling electricity. The EMSs are developed to supply the household’s loads and reduce operating costs of the system based on different options of flat and time-of-use (ToU) rates for buying and selling electricity prices. Four different options are evaluated and compared in this study: (1) Flat-Flat, (2) ToU-Flat, (3) Flat-ToU, and (4) ToU-ToU. The operation cost is calculated based on the electricity exchange with the main grid, the equivalent cost of PV generation, as well as the degradation cost of battery storage. The operation of the grid-connected house with rooftop solar PV and battery is evaluated for a sunny week in summer and a cloudy week in winter to investigate the proper performance for high and low generations of PV. While the developed rule-based EMS are generic and can be applied for any case studies, a grid-connected house in Australia is examined. For this purpose, real data of solar radiation, air temperature, electricity consumption, and electricity rates are used. It is found that the ToU-Flat option has the lowest operating cost for the customers. Refereed/Peer-reviewed

Published
2021

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