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Online since: September 2011
Authors: Ting Ting Hsieh, Kwang Pang Lai, Che Ming Chiang, Ming Chin Ho
Taiwan Green Building Material (GBM) evaluation system incorporates low toxicity, minimal emissions, low-VOC, recycled content, resource efficiency, recyclable and reusable materials, energy efficiency, water conservation, IAQ improvement, and use of locally products, among others (Froeschle, 1999).
The criteria incorporate low toxicity, minimal emissions, low-VOC assembly, recycled content, resource efficiency, recyclable and reusable materials, energy efficiency, water conservation, IAQ improvement, locally products, etc (Froeschle,1999).
High-performance GBM: In response to the green building design issues, such as building environment noise, poor ground water retention, glazed curtain wall causing energy consumption, and the problem of dazzling sunlight, the environmental performance of a building material should be concerned and involved.
In addition, Soil Water Content Indicator may choose high performance permeable GBMs to increase water retention and storage.
[3] Berge Bjorn, (translated from Norwegian by Filip Henley with Howard Liddell_, 2001, The Ecology of Buildings Materials, Great Britain: Reed Educational and Professional Publishing Ltd
The criteria incorporate low toxicity, minimal emissions, low-VOC assembly, recycled content, resource efficiency, recyclable and reusable materials, energy efficiency, water conservation, IAQ improvement, locally products, etc (Froeschle,1999).
High-performance GBM: In response to the green building design issues, such as building environment noise, poor ground water retention, glazed curtain wall causing energy consumption, and the problem of dazzling sunlight, the environmental performance of a building material should be concerned and involved.
In addition, Soil Water Content Indicator may choose high performance permeable GBMs to increase water retention and storage.
[3] Berge Bjorn, (translated from Norwegian by Filip Henley with Howard Liddell_, 2001, The Ecology of Buildings Materials, Great Britain: Reed Educational and Professional Publishing Ltd
Online since: March 2013
Authors: De Yu Huang
Building saving-energy is project of a system , what by means of certain technical to achieve the comfortable and healthy environment , at the same time, with limited resources and minimum energy consumption to obtain the maximum economic and social effect that improving energy utilization value in the construction .Building saving-energy including buildings saving-energy ,construction equipment, the technology about building energy conservation and evaluation of building energy conservation, relates to the architecture, design, planning, construction, management, environment and other fields of expertise, to reach the final purpose of saving energy, must strengthen the relevant industries and professional cooperation and exchanges, for nearly 40 years, foreign can be divided roughly for three phase about the importance understanding building saving-energy and research on energy conservation progress[1].
1970s-1980s, saving- energy is due to " security drive ", mainly by reducing energy
Computer technology are Extensive applied in building saving- energy design Evolutionary algorithm has been widely used in engineering optimization problems , such as Fong make use of the heuristic simulation coupled with EP method on a local HVAC system of chilled water and air temperature are reset, the results showed that 7% potential can be obtained[2] [3].
Make full use of the natural environment for building saving- energy design Japan put forward ‘symbiosis with the environment of residential’ concept, in the 1990s, emphasizing the design about building facade design technology, natural lighting, ventilation, solar power supply system, air conditioning system ( work area and no work area ), intelligent lighting system, district heating and cooling system, water recycling system and the construction coordination with environment climate is important means of energy conservation [4].
Pay attention to the function of new insulation materials in different use For example, the BASF company of German developed a new type of insulation material of NEOPOR who can reduce the product water rate and the coefficient of heat conductivity [5].
Computer technology are Extensive applied in building saving- energy design Evolutionary algorithm has been widely used in engineering optimization problems , such as Fong make use of the heuristic simulation coupled with EP method on a local HVAC system of chilled water and air temperature are reset, the results showed that 7% potential can be obtained[2] [3].
Make full use of the natural environment for building saving- energy design Japan put forward ‘symbiosis with the environment of residential’ concept, in the 1990s, emphasizing the design about building facade design technology, natural lighting, ventilation, solar power supply system, air conditioning system ( work area and no work area ), intelligent lighting system, district heating and cooling system, water recycling system and the construction coordination with environment climate is important means of energy conservation [4].
Pay attention to the function of new insulation materials in different use For example, the BASF company of German developed a new type of insulation material of NEOPOR who can reduce the product water rate and the coefficient of heat conductivity [5].
Online since: April 2015
Authors: Yan Zhen Li, Hou Zhuang Shan, Tian Yi Li, Shao Hui Chen
The waste metal cutting fluid is dumped on the ground, down the sewers, or sent to landfills, where it finally either seeps into ground or floats on water surfaces.
And the KOH ionise quickly in water and form strong nucleophile OH- for breaking polar bond that holds the thickener and base oil in waste metal cutting fluid.
But, rising temperature can increase the solubility of solid and oil in water, so, a further increase in the extraction temperature will result in decreasing mass of oil sludge and reducing the volume of the recovery oil.
Blackie Academic & Professional, London, pp. 306–319
And the KOH ionise quickly in water and form strong nucleophile OH- for breaking polar bond that holds the thickener and base oil in waste metal cutting fluid.
But, rising temperature can increase the solubility of solid and oil in water, so, a further increase in the extraction temperature will result in decreasing mass of oil sludge and reducing the volume of the recovery oil.
Blackie Academic & Professional, London, pp. 306–319
Online since: December 2014
Authors: Bao Hui Men, Sen Guo Zhan, Jia Jie Wu, Zheng Da Duan
While in 2012, the urban water logging has become more serious.
Meanwhile the construction of professional mobile rescue team should be reinforced while making full preparation of material supply.
Beijing water. 4(2012), p.1-3, In Chinese [2] F.R.
China water. 15(2012), p.20-21, In Chinese [3] C.X.
China water. m en/ztgz/xvm/2006sjslt/1/t20060322J73783. htra
Meanwhile the construction of professional mobile rescue team should be reinforced while making full preparation of material supply.
Beijing water. 4(2012), p.1-3, In Chinese [2] F.R.
China water. 15(2012), p.20-21, In Chinese [3] C.X.
China water. m en/ztgz/xvm/2006sjslt/1/t20060322J73783. htra
Online since: October 2011
Authors: Yang Sun, Chun Yu Sun, Guang Chen
Introduction
In recent years, the potential of edible films to control water transfer, and to improve food quality and shelf-life, has received increasing attention from researchers and industry.
Materials and methods Film preparation Soy protein film-forming dispersion was prepared dissolving 5 g of soy proteins isolate(SPI) and 2 g of Glycerol, dispersed in 90 ml of distilled water, and pH was adjusted to 8 by adding hydrochloric sodium hydroxide .Before stirring 30 minites at 70 °C, ultrasound treatment (UT) was applied to 100 mL of the film forming dispersion for exposure times ranging from 0 to 20 s were performed by using a UPS200S ultrasonic processor (Hielscher Gmbh, Germany) equipped at a power output of 1000 W, a frequency of 24 kHz.
They observed a detrimental effect of UT on the mechanical properties of films except for the sample treated in a sonication bath for 10 min, for which the improvement of mechanical properties and the increase in film water solubility were observed.
London: Blackie Academic and Professional
Materials and methods Film preparation Soy protein film-forming dispersion was prepared dissolving 5 g of soy proteins isolate(SPI) and 2 g of Glycerol, dispersed in 90 ml of distilled water, and pH was adjusted to 8 by adding hydrochloric sodium hydroxide .Before stirring 30 minites at 70 °C, ultrasound treatment (UT) was applied to 100 mL of the film forming dispersion for exposure times ranging from 0 to 20 s were performed by using a UPS200S ultrasonic processor (Hielscher Gmbh, Germany) equipped at a power output of 1000 W, a frequency of 24 kHz.
They observed a detrimental effect of UT on the mechanical properties of films except for the sample treated in a sonication bath for 10 min, for which the improvement of mechanical properties and the increase in film water solubility were observed.
London: Blackie Academic and Professional
Online since: July 2014
Authors: Gunalan Muthu, Subramaniam Shanmugam, Arunachalam R. Veerappan
The other side of the TEG is cooled by passing water at constant temperature with certain velocity, which acts as a heat sink.
The nodal temperatures (Tr, Th,) are found by assuming ambient temperature and initial temperature of water at the inlet of heat sink by using MATLAB simulation.
Parameters Value Parameters Value Area of the receiver plate (m2) 0.1 Ambient temperature, (K) 302 Area of the heat sink (m2) 0.04 Water inlet temperature, (K) 298 Area of TEG (m2) 0.0125 Cold side temperature (K) 300 Wind velocity, (m/s) 2.2 Kins value (W/m2K) 0.05 Optical efficiency of dish 0.7 Kteg value (W/m2K) 2.2 DNI (W/m2) 985.5 K value of receiver (W/m2K) 210 Load resistance (Ω) 1.2 Number of thermocouples 127 Emissivity of receiver plate 0.9 Number of module 4 Results and discussion Table 2 presents numerical data from the exergy analysis of the subsystem and overall system at a particular DNI of 985.5 W/m2.
Cengel, Michael A.Boles, Thermodynamics An engineering approach, McGraw-Hill Professional Publishing, 7th edition,2004.
The nodal temperatures (Tr, Th,) are found by assuming ambient temperature and initial temperature of water at the inlet of heat sink by using MATLAB simulation.
Parameters Value Parameters Value Area of the receiver plate (m2) 0.1 Ambient temperature, (K) 302 Area of the heat sink (m2) 0.04 Water inlet temperature, (K) 298 Area of TEG (m2) 0.0125 Cold side temperature (K) 300 Wind velocity, (m/s) 2.2 Kins value (W/m2K) 0.05 Optical efficiency of dish 0.7 Kteg value (W/m2K) 2.2 DNI (W/m2) 985.5 K value of receiver (W/m2K) 210 Load resistance (Ω) 1.2 Number of thermocouples 127 Emissivity of receiver plate 0.9 Number of module 4 Results and discussion Table 2 presents numerical data from the exergy analysis of the subsystem and overall system at a particular DNI of 985.5 W/m2.
Cengel, Michael A.Boles, Thermodynamics An engineering approach, McGraw-Hill Professional Publishing, 7th edition,2004.
Online since: February 2012
Authors: Wen Lei Shen, Yong Ding Wang
Over the past few years, with the rapid development of the computer technology, Computational Fluid Dynamics (CFD) has been developed to becoming popular software to analyze the operation of devices under the water both in home and abroad.
To be more specific, a suitable model has been set in Fluent to imitate the real situation when the aquatics hub cutter is working under the water; and then choosing the model and SIMPLEC algorithm, which is a kind of standard in the FLUENT, to help to analyze and acquire the best simulated result.
Setting an aquatics hub cutter model Aquatics hub cutter is designed as a cylinder-shaped with three blades outside of the hub, and it is fixed on a rotating hub[6].The model of an aquatics hub cutter was set by professional software AutoCAD(shown in fig.1).
Water Power, 33(6),49-52,(in Chinese) [9] Minggao Tan, Houlin Liu, Xianfang Wu. (2008).
To be more specific, a suitable model has been set in Fluent to imitate the real situation when the aquatics hub cutter is working under the water; and then choosing the model and SIMPLEC algorithm, which is a kind of standard in the FLUENT, to help to analyze and acquire the best simulated result.
Setting an aquatics hub cutter model Aquatics hub cutter is designed as a cylinder-shaped with three blades outside of the hub, and it is fixed on a rotating hub[6].The model of an aquatics hub cutter was set by professional software AutoCAD(shown in fig.1).
Water Power, 33(6),49-52,(in Chinese) [9] Minggao Tan, Houlin Liu, Xianfang Wu. (2008).
Online since: August 2023
Authors: Joanna Lourdy Batawan, Harold Apalacio, King Haroun Sultan, Marie Fe Y. Lacsado
Bulk Density and Water Absorption.
The specimens were soaked in water for 24 hours and, after that, were weighed while still immersed in water to get the submerged weight.
Water Permeability.
The average water absorption of the tiles with different mixtures has the following results: The durability of concrete depends on its water absorption; the higher the water it can absorb, the more prone it is to water and other harmful ions, which can destroy the chemical stability of concrete [8].
Water Permeability.
The specimens were soaked in water for 24 hours and, after that, were weighed while still immersed in water to get the submerged weight.
Water Permeability.
The average water absorption of the tiles with different mixtures has the following results: The durability of concrete depends on its water absorption; the higher the water it can absorb, the more prone it is to water and other harmful ions, which can destroy the chemical stability of concrete [8].
Water Permeability.
Online since: January 2016
Authors: Rudolf Hela, Karel Mikulica, Ámos Dufka
At temperatures around 400 - 500°C, chemically bound water is released, Portlandite Ca(OH)2 is decomposed to calcium monoxide CaO and water.
After a rain it was found that there is no drainage of rainfall water and the whole examined area is under water.
After the rainfall water flew out, works of technical analysis began.
The first step of renovation of damaged floor in the industrial building damaged by fire was technical analysis of the structure with professional diagnostic methods.
High-speed water jet technology for renovation of concrete structures.
After a rain it was found that there is no drainage of rainfall water and the whole examined area is under water.
After the rainfall water flew out, works of technical analysis began.
The first step of renovation of damaged floor in the industrial building damaged by fire was technical analysis of the structure with professional diagnostic methods.
High-speed water jet technology for renovation of concrete structures.
Online since: June 2012
Authors: Hong Liang Pan, Li An Cai, Ying Xu, Chun Jie Ye
More water content in oil may produce more water vapor under low-pressure circumstance, and more likely to form cavitation in low pressure area.
Last but not least, water monitoring was improved to guarantee that the water content in lubricating oil would not exceed 0.5%.
The gasification of water caused grooves on the valve seat sealing surface.
By extracting the water from the oil, the pump can work in normal condition.
Professional Engineering Publishing, UK, and ASME Press: 2003
Last but not least, water monitoring was improved to guarantee that the water content in lubricating oil would not exceed 0.5%.
The gasification of water caused grooves on the valve seat sealing surface.
By extracting the water from the oil, the pump can work in normal condition.
Professional Engineering Publishing, UK, and ASME Press: 2003