Research and Application of “Internet+” Intelligent Heating System for Central Heating
Pingping Huang,
Xinrong Yan,
Kaixuan Guo
Issue:
Volume 6, Issue 5, October 2021
Pages:
76-81
Received:
23 August 2021
Accepted:
9 September 2021
Published:
15 September 2021
Abstract: At present, China's central heating industry is developing rapidly. It is an important direction for the transformation and upgrading of the energy industry to use the advantages of advanced information and communication technology and Internet platform to promote the intelligent energy production, promote the interconnection of various types of energy flow network and the coordinated transformation of various energy forms. In the framework of the era of industrial Internet of Things, the introduction of "Internet +" technology helps to improve the production, operation, management and service level of central heating system from the system engineering level. The "Internet +" intelligent heating system in the field of central heating integrates heating physical system and information system deeply, forming a new application mode of "digital twin". It takes "heat source -- heat network -- heat station -- user heat transfer" as the main line and adopts B/S architecture. It consists of data perception layer, data acquisition layer, data access layer, business logic layer, presentation layer and terminal access layer. In a "Internet +" intelligent heating platform demonstration construction applications, through the construction of entire network hydraulic balance analysis, the source network integration of collaborative scheduling, energy consumption statistics and analysis, management fees management, customer service management subsystem module, such as the heating index to reduce energy consumption, operating cost savings, improve work efficiency and service quality improvement has made significant achievements.
Abstract: At present, China's central heating industry is developing rapidly. It is an important direction for the transformation and upgrading of the energy industry to use the advantages of advanced information and communication technology and Internet platform to promote the intelligent energy production, promote the interconnection of various types of en...
Show More
Influence of Super plasticizer on the Compressive Strength and Setting Time of Concrete
Akaolisa Celestine Ezeagu,
Ezeagu Ebuka Edwin
Issue:
Volume 6, Issue 5, October 2021
Pages:
82-88
Received:
13 September 2021
Accepted:
4 October 2021
Published:
28 October 2021
Abstract: Super plasticizer or High range water reducer is a specific type of admixture that is used to produce low water-cement ratio high strength concrete with normal or enhanced workability. Therefore by using Super plasticizers, it became easier for contractors nowadays to place highly workable, durable, pump able concrete with higher strength, and even with less cost than using other ways to produce concrete with such properties. The effects of SPs on physical properties of hardened and fresh concrete is therefore studied in this research work by considering 1%, 2%, 3% and 4% of two types of Super plasticizers namely Conplast 430 and Dr Fixit which was referred as SP A and SP B respectively in this research. A mix ratio of 1:2:4 was used with a constant 0.5 water-cement ratio in order to determine the effect of SP on workability. A set of 72nos of 150mm x 150mm x 150mm concrete cubes specimens were casted and cured by complete immersion in water. Setting time test was carried out to determine the rate at which concrete hardens. The samples were further tested for compressive strengths at the ends of 7, 14, 21 and 28 days of curing. The result showed that the highest compressive strength for Conplast-430 (SP A) at 7 days was achieved at 1%, 14 days at 2%, 21 days at 2%and that of 28 days was achieved at 2%. While the highest compressive strength for Dr Fixit (SP B) at 7 days was achieved at 1%, 14 days at 1%, 21 days at 1% and that of 28 days was achieved at 3%. This therefore shows that use of super plasticizer has increased concrete strength and on time even at very low percentage introduction by volume.
Abstract: Super plasticizer or High range water reducer is a specific type of admixture that is used to produce low water-cement ratio high strength concrete with normal or enhanced workability. Therefore by using Super plasticizers, it became easier for contractors nowadays to place highly workable, durable, pump able concrete with higher strength, and even...
Show More
