Huazhong University of Science and Technology

Lei Chen

Yi Wang

Jing Zhou

Sheng Su

Song Hu

Jun Xu

Jun Xiang

Long Jiang

Meng Zhu

Aishu Li

Hengda Han

Maosen Wang

Mengxue Lin

Haoran Qing

Renshan Zhang

Ming Zhu

A fire smoke-detection method and detector based on particle shape characteristics for detecting particles in an optical dark chamber. An optical path angle between one blue light and one infrared light and a photoelectric conversion module is an acute angle, while an optical path angle between another blue light and the photoelectric conversion module is an obtuse angle. The detection method includes: starting a light source combination, calculating a change value between a current scattered light optical power and a background value of each light source, when the change value exceeds a set threshold, continuously starting the light source combination and constructing a space vector from the recorded change values, and using a classifier to classify a plurality of space vectors to obtain a plurality of classification results with categories including fire smoke and interfering aerosols; and counting the classification results to obtain the correct classification result.

Fire smoke detection method and fire smoke detector based on particle shape characteristics

A supercritical COboiler capable of realizing uniform combustion, corrosion resistance and coking resistance, and a boiler system are provided. The supercritical COboiler includes a main combustion chamber, an upper furnace, a furnace arch and a flue, wherein a cross section of the main combustion chamber is circular or oval, or is of an N-sided shape, where N&#x3e;4; at least four burner groups are disposed on the main combustion chamber, each group of burner nozzles corresponding to each burner group includes a recirculating air nozzle, a primary air nozzle and a secondary air nozzle; lateral recirculating air nozzles symmetrically distributed are respectively disposed at two sides of the primary air nozzle, the recirculating air nozzle and the lateral recirculating air nozzle are configured to feed recirculating flue gas or a mixed gas of the recirculating flue gas and secondary air into the main combustion chamber.

Supercritical COboiler capable of realizing uniform combustion, corrosion resistance and coking resistance, and boiler system

A boiler design method and system for a supercritical carbon dioxide unit, and a storage medium are provided. The boiler design method includes the following steps: step 1, determining a boiler type, known design parameters and unknown design parameters of boilers to be designed; step 2, acquiring operating parameters of each selected supercritical carbon dioxide unit respectively, and establishing a relational expression among a plurality of operating parameters in the operating parameters of each supercritical carbon dioxide unit respectively; and step 3, substituting the known design parameters in step 1 into the relational expression determined in step 2, and calculating the unknown design parameters. The operating parameters of the boilers, with the optimal performance, of the supercritical carbon dioxide unit are selected to establish the relational expression, and the determined operating parameters are substituted into the relational expression to calculate design parameters to be determined.

Boiler design method and system for supercritical carbon dioxide unit, and storage medium

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Wuhan, China

Lei Chen