Construction safety and quality control of water supply and drainage works for residential buildings

2020 ◽  
Vol 2 (2) ◽  
pp. 60-65
Author(s):  
Zhang Yuyin ◽  
Hu Chunlin
Keyword(s):  
Quality Control ◽  
Water Supply ◽  
Residential Buildings ◽  
Construction Safety

scholarly journals Water Supply Pipeline Risk Index Assessment Based on Cohesive Hierarchical Fuzzy Inference System

Processes ◽  
2019 ◽  
Vol 7 (4) ◽  
pp. 182 ◽  
Author(s):  
Muhammad Fayaz ◽  
Shabir Ahmad ◽  
Lei Hang ◽  
DoHyeun Kim
Keyword(s):  
Water Supply ◽  
Fuzzy Inference System ◽  
Fuzzy Inference ◽  
Residential Buildings ◽  
Risk Index ◽  
Inference System ◽  
Full Structure ◽  
Implementation Time ◽  
Novel Method ◽  
Water Supply Pipeline

As populations grow, facilities such as roads, bridges, railways lines, commercial and residential buildings, etc., must be expanded and maintained. There are extensive networks of underground facilities to fulfil the demand, such as water supply pipelines, sewage pipelines, metro structures, etc. Hence, a method to regularly assesses the risk of the underground facility failures is needed to decrease the chance of accidental loss of service or accidents that endanger people and facilities. In the proposed work, a cohesive hierarchical fuzzy inference system (CHFIS) was developed. A novel method is proposed for membership function (MF) determination called the heuristic based membership functions determination (HBMFD) method to determine an appropriate MF set for each fuzzy logic method in CHFIS. The proposed model was developed to decrease the number of rules for the full structure fuzzy inference system with all rule implementation. Four very crucial parameters were considered in the proposed work that are inputs to the proposed CHFIS model in order to calculate the risk of water supply pipelines. In order to fully implement the proposed CHFIS just 85 rules are needed while using the traditional Mamdani fuzzy inference system, 900 rules are required. The novel method greatly reduces implementation time and rule design sets that are extremely time consuming to develop and difficult to maintain.

Architecture Design of Building Integrated Solar Collector

2014 ◽  
Vol 889-890 ◽  
pp. 1333-1336
Author(s):  
Yu Fu ◽  
Kai Chen ◽  
Fei Ying Fu ◽  
Xin Bin Wang
Keyword(s):  
Water Supply ◽  
Solar Collector ◽  
Residential Buildings ◽  
Radiation Energy ◽  
Hot Water ◽  
Space Heating ◽  
Solar Collectors ◽  
Domestic Hot Water ◽  
Heating And Cooling ◽  
Hot Water Supply

Solar thermal collector converts solar radiation energy into useful thermal energy and transfers to a transport fluid flowing through the system. The collected energy can be used either direct to space or water heating equipment, or to a thermal storage for later use. Along with fast development, not only domestic hot water supply is needed, but also space heating and cooling are required. Also, limited roof space is another key barrier that should be considered. Furthermore, most of the building integration with solar collectors are mounted on the roof top by flat or tilt angle at present. It is considered to be a failure of low level architectural quality because the collector is used only for application and seems as an independent technical element of the building. With the consideration of the above, novel type of solar collector has been proposed to realize the utilization and offset the barriers. This novel solar collectors is especially suitable to supply domestic hot water, and combines with ASHP for multi-function, space heating and cooling as well as domestic hot water supply. Additionally, it is well integrated with high-rise residential buildings, which is good for aesthetic.

scholarly journals Water losses in internal water supply services of residential buildings

2019 ◽  
Vol 97 ◽  
pp. 05015
Author(s):  
Evgeny Orlov ◽  
Mariia Lavrova ◽  
Alexandra Mishueva
Keyword(s):  
Water Supply ◽  
Residential Buildings ◽  
Electric Energy ◽  
Residential Building ◽  
Water Supply Systems ◽  
Water Losses ◽  
Technical Errors ◽  
Internal Water ◽  
Negative Effect ◽  
Water Supply Services

Internal water supply is intended to provide a consumer with potable quality water for various needs. Leakages appearing in the course of internal water supply operation have a negative effect on the operation of a whole system. All mains reasons of water losses in internal water supply services have been studied. It was found that losses can be caused by a human factor and caused by technical errors in a system, for example, network faults. Based on the study of scientific works on water losses of internal water supply systems, as well as on analysis of various water loss options there is a new well grounded method presented aimed to achieve sustainable water saving directly in a building in the process of water consumptions. There were conclusions drawn saying that: design of an internal water supply system of a residential building should follow the scheme of reducing water consumption on the lower floors of buildings by zoning the entire system; it is advisable to use a system with water tanks; to achieve indirect saving of electric energy, it is necessary to use pumping units with an adjustable drive.

Study on Solar Assisted Different Heat Source Heating for School Building in Rural of Gansu

2014 ◽  
Vol 587-589 ◽  
pp. 315-319
Author(s):  
Cai Qin Hou ◽  
Hui Hou
Keyword(s):  
Carbon Dioxide ◽  
Solar Energy ◽  
Heat Source ◽  
Water Supply ◽  
Carbon Dioxide Emissions ◽  
Residential Buildings ◽  
Gansu Province ◽  
Hot Water ◽  
Depth Analysis ◽  
Hot Water Supply

Gansu province is rich in solar energy resources ,solar energy is clean and reproducible energy,it has an important advantage once we use solar energy in heating,supplying hot water in residential buildings. In the vast rural areas of Gansu, carbon emissions is huge because of slow way of heating and dirty fuel,such as briquette ,straw and so on. In this paper, we have a in-depth analysis on different forms of solar assisted heat source for hot water supply and heating, focusing on energy-saving effect, carbon dioxide emissions,and total energy deficit.The results show solar assisted biomass boiler is a worthy manner for heating and hot water supply ,it can save energy more than 60%. More important is it can reduce carbon dioxide emissions large extently.

scholarly journals Reliable and safe heat supply of residential buildings using wastewater after heaters for hot water supply

2019 ◽  
Vol 12 (2) ◽  
pp. 120-125
Author(s):  
O. D. Samarin
Keyword(s):  
Water Supply ◽  
Heat Supply ◽  
Power Plants ◽  
Residential Buildings ◽  
Thermal Power ◽  
Break Point ◽  
Hot Water ◽  
Outdoor Temperature ◽  
Capital Costs ◽  
Hot Water Supply

A modified scheme of heat supply of residential buildings with dependent connection to external heating networks is considered, providing reliability of heat supply and the necessary comfort in the premises due to mixing in some of wastewater after hot water supply (DHW) heaters at an outdoor temperature exceeding the break point of the temperature graph. The main equations describing the dependence of the water temperature in the supply line on the outside air temperature are analyzed, and a review of possible ways of regulating the heat supply and preventing "overflows" near the beginning and the end of the heating period is carried out, taking into account the requirements of the current regulatory documents of the Russian Federation. Calculations are made to determine the required proportion in the mixture for water consumption after the heaters of hot water supply in the conditions of the application of the scheme of connection of buildings to the heating network. The analysis of obtained results is given, and conclusions are drawn concerning expediency of application of the considered scheme. It is established that, from the power point of view, mixing of wastewater after heaters of DHW in the calculated quantity will allow to provide reliability of heat supply of the main group of residential buildings and safety of activity of people at high temperatures of outside air. It is shown that, at the same time, that the higher the current outdoor temperature, the greater the share of wastewater in the mixture, with the above dependence close to linear, and its numerical coefficients associated only with the calculated outdoor temperature in the construction area for the cold season. It is noted that the introduction of the proposed scheme is possible with a minimum reconstruction of existing units and structures without significant capital costs, and also gives a system-wide effect in the form of increased electricity generation in thermal power plants on thermal consumption.

scholarly journals A Water Supply Pipeline Risk Analysis Methodology Based on DIY and Hierarchical Fuzzy Inference

Symmetry ◽  
2019 ◽  
Vol 12 (1) ◽  
pp. 44 ◽  
Author(s):  
Muhammad Fayaz ◽  
Quoc Bao Pham ◽  
Nguyen Thi Thuy Linh ◽  
Pham Thi Thao Nhi ◽  
Dao Nguyen Khoi ◽  
...  
Keyword(s):  
Fuzzy Logic ◽  
Water Supply ◽  
Manufacturing Industry ◽  
Fuzzy Inference ◽  
Residential Buildings ◽  
Risk Index ◽  
The People ◽  
Fuzzy Logic Method ◽  
Do It Yourself ◽  
Water Supply Pipeline

The standard manufacturing organizations follow certain rules. The highest ubiquitous organizing principles in infrastructure design are modular idea and symmetry, both of which are of the utmost importance. Symmetry is a substantial principle in the manufacturing industry. Symmetrical procedures act as the structural apparatus for manufacturing design. The rapid growth of population needs outstrip infrastructure such as roads, bridges, railway lines, commercial, residential buildings, etc. Numerous underground facilities are also installed to fulfill different requirements of the people. In these facilities one of the most important facility is water supply pipelines. Therefore, it is essential to regularly analyze the water supply pipelines’ risk index in order to escape from economic and human losses. In this paper, we proposed a simplified hierarchical fuzzy logic (SHFL) model to reduce the set of rules. To this end, we have considered four essential factors of water supply pipelines as input to the proposed SHFL model that are: leakage, depth, length and age. Different numbers of membership functions are defined for each factor according to its distribution. The proposed SHFL model takes only 95 rules as compared to the traditional mamdani fuzzy logic method that requires 1225 rules. It is very hard and time consuming for experts to design 1225 rules accurately and precisely. Further, we proposed a Do-it-Yourself (DIY) system for the proposed SHFL method. The purpose of the DIY system is that one can design the FIS model according to his or her need.

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