scholarly journals ANALYSIS OF USING ELECTRONIC FIRE SAFETY SYSTEMS

Author(s):  
Ruslan Dadashov Ruslan Dadashov

High-rise multi-storey buildings are one of the most widely used types of buildings in town-planning (urban planning). Depending on their purpose, high-rise multi-storey buildings are considered to be both constructive and engineering-technically complex objects. The current use of modern construction technologies intends the widespread use of a large number of engineering systems in high-rise multi-storey buildings. These include such examples as ventilation, heating, lighting, communications, building automation, etc. It should be pointed out that fire safety systems play one of the key roles in building automation. This is due to the fact that multi-storey buildings have rather high energy consumers and the use of a large number of various systems consequently increase the probability of fire occurence. In addition, it is worth pointing out that the human factor plays an important role in fire occurrence, because human is the direct author of constructive and technical solutions, the end user of the apartments having a high probability of fire, so much depends on his actions as a result. The main purpose of the paper is to analyze the use of various technical units to increase the efficiency of multi-storey buildings in terms of fire safety. First, fire is studied as a physicochemical process and then analysis of various fire safety problems that arise during the operation of multi-storey buildings in the Republic of Azerbaijan and foreign countries and their practical solutions based on this analysis are examined in the article. Keywords: fire, smoke extraction/ventilation systems, fire alarm systems, fire detectors, fire controllers, building automation, video analytics

2020 ◽  
Vol 10 (24) ◽  
pp. 8918
Author(s):  
Samson Tan ◽  
Darryl Weinert ◽  
Paul Joseph ◽  
Khalid Moinuddin

The current paper presents an application of an alternative probabilistic risk assessment methodology that incorporates technical, human, and organizational risks (T-H-O-Risk) using Bayesian network (BN) and system dynamics (SD) modelling. Seven case studies demonstrate the application of this holistic approach to the designs of high-rise residential buildings. An incremental risk approach allows for quantification of the impact of human and organizational errors (HOEs) on different fire safety systems. The active systems considered are sprinklers, building occupant warning systems, smoke detectors, and smoke control systems. The paper presents detailed results from T-H-O-Risk modelling for HOEs and risk variations over time utilizing the SD modelling to compare risk acceptance in the seven case studies located in Australia, New Zealand, Hong Kong, Singapore, and UK. Results indicate that HOEs impact risks in active systems up to ~33%. Large variations are observed in the reliability of active systems due to HOEs over time. SD results indicate that a small behavioral change in ’risk perception’ of a building management team can lead to a very large risk to life variations over time through the self-reinforcing feedback loops. The quantification of difference in expected risk to life due to technical, human, and organizational risks for seven buildings for each of 16 trial designs is a novel aspect of this study. The research is an important contribution to the development of the next generation building codes and risk assessment methods.


2018 ◽  
Vol 931 ◽  
pp. 451-454
Author(s):  
Anna A. Karamysheva

The article deals with the use of renewable energy sources in construction in general and in high-rise unique buildings. Such approach will allow to design and construct buildings in which integrated renewable energy sources can be perfectly applied to all aspects of construction. The historical development of architecture and ecology as a single phenomenon is considered. This is particularly relevant to high-rise buildings. With the implementation of energy-efficient technologies, the main drawback - high-energy consumption - will be cut off. The article raises the question of the need to merge these two concepts. Examples of buildings with applied renewable energy sources, both constructed and projected, are considered. Non-traditional energy sources such as wind, solar, land, water and biomass are analyzed. The relevance of their application in construction and influence on all aspects of the project is proved: town-planning, functional, space planning, architectural and artistic, constructive and engineering.


2021 ◽  
Vol 11 (6) ◽  
pp. 2590
Author(s):  
Samson Tan ◽  
Darryl Weinert ◽  
Paul Joseph ◽  
Khalid Moinuddin

Given that existing fire risk models often ignore human and organizational errors (HOEs) ultimately leading to underestimation of risks by as much as 80%, this study employs a technical-human-organizational risk (T-H-O-Risk) methodology to address knowledge gaps in current state-of-the-art probabilistic risk analysis (PRA) for high-rise residential buildings with the following goals: (1) Develop an improved PRA methodology to address concerns that deterministic, fire engineering approaches significantly underestimate safety levels that lead to inaccurate fire safety levels. (2) Enhance existing fire safety verification methods by incorporating probabilistic risk approach and HOEs for (i) a more inclusive view of risk, and (ii) to overcome the deterministic nature of current verification methods. (3) Perform comprehensive sensitivity and uncertainty analyses to address uncertainties in numerical estimates used in fault tree/event trees, Bayesian network and system dynamics and their propagation in a probabilistic model. (4) Quantification of human and organizational risks for high-rise residential buildings which contributes towards a policy agenda in the direction of a sustainable, risk-based regulatory regime. This research contributes to the development of the next-generation building codes and risk assessment methodologies.


High rise office building design is one of the essential buildings in construction industry due to the limited space especially in the urban area. After home, a high rise office building is an important space for human in modern era. Due to the issue of high energy consumption especially inefficient artificial light strategy, side-day lighting becomes the best solution for a high rise office building design. Despite providing efficient energy consumption, side-day lighting creates a positive impact to the worker as well as the office's indoor environment. Hence, this paper aims to explore the basic passive side-day lighting considerations that educate people especially for those who are involved in the building construction industry. Beside, this paper focuses on the passive design considerations due to the various advantages that not involved especially with complex electrical and mechanical system. A systematic literature review is the main methodology for this paper to identify the basic passive side-day lighting considerations for a high rise office building design. Base on this research, it revealed that eight elements for building design considerations should be applied to provide a better day lighting impact for a high rise office building design. Considerations for non-building design aspects should also need to be applied since those aspects contribute to produce a better day lighting impact for a high rise office building design.


2012 ◽  
Vol 241-244 ◽  
pp. 2606-2610
Author(s):  
Zhong Jiang ◽  
Jin Jiang

At present, the automatic fire alarm systems on sale were produced by different factories, which resulted in the information not being shared mutually. Furthermore, it was difficult to connect the different fire auto-alarm systems to the same network. They couldn't communicate automatically with the city fire-fight commanding center in time. We designed interface module of automatic fire alarm controller network and interface module of data center network. By using the existing net of PSTN and internet, it could transmit the breakdown information and a fire information of the automatic fire alarm systems to the fire-fight commanding center, the long-range diagnose, the real-time monitor of a fire and the long-range control in the city fire auto-alarm system was realized.


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