scholarly journals Innovative recycling of end of life silicon PV panels: ReSiELP

Detritus ◽  
2021 ◽  
pp. 41-47
Author(s):  
Pietrogiovanni Cerchier ◽  
Katya Brunelli ◽  
Luca Pezzato ◽  
Claire Audoin ◽  
Jean Patrice Rakotoniaina ◽  
...  
Keyword(s):  
End Of Life ◽  
Value Chain ◽  
Building Materials ◽  
High Efficiency ◽  
Electronic Waste ◽  
Pv Modules ◽  
Recycling Technology ◽  
Challenges And Opportunities ◽  
New Type ◽  
Mechanical Separation

In Europe, an increasing amount of End of Life (EoL) photovoltaic silicon (PV) panels is expected to be collected in the next 20 years. The silicon PV modules represent a new type of electronic waste that shows challenges and opportunities. ReSiELP was a European project that aimed at recovery of valuable materials (aluminum, glass, copper, silicon, and silver) from EoL silicon PV modules. During the project a pilot plant, constituted by a furnace, a gas abatement system, an apparatus for the mechanical separation and a hydrometallurgical plant was designed and built. The pilot plan was realized to upscale recycling technology to TRL 7, with a 1500 panels/year capacity. The feasibility of industrial-scale recovery and the reintegration of all recovered materials in their appropriate value chain was investigated. The results obtained showed that 2N purity silicon and 2N purity silver can be recovered with high efficiency. In order to realize a zero-waste plant, a hydrometallurgical process was developed for the wastewater treatment. Moreover, the use of recovered glass for building materials was investigated and the obtained performance seemed comparable with commercial products.

The Performance Analysis and Research about a Type of New Tubular Belt

2013 ◽  
Vol 561 ◽  
pp. 255-259 ◽  
Author(s):  
Wei Feng Zhang ◽  
Chuan Sheng Wang ◽  
Fu Xia Zhang
Keyword(s):  
Building Materials ◽  
High Efficiency ◽  
Bulk Material ◽  
Environmental Aspects ◽  
Belt Conveyor ◽  
Long Distance ◽  
Conveyor System ◽  
New Type ◽  
Machinery Manufacturing ◽  
Unanimous Approval

Abstract. The tubular belt conveyor system is one of the most widely-used deferent manners in bulk material. It is a relatively important continuous deferent manners in modern intensive production, widely applied in metallurgy, coal, building materials and other different industries. The belt conveyor has advantages in long distance convey, large conveying volume, high efficiency, with simple structure. Now with the development of the machinery manufacturing technology, rubber industry and the requirements of the environmental aspects, the new type tubular belt type conveyor has obtained unanimous approval, and possessed vast vista in application and use value

Materials passport's review: challenges and opportunities toward a circular economy building sector

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Mayara Regina Munaro ◽  
Sergio Fernando Tavares
Keyword(s):  
Life Cycle ◽  
Value Chain ◽  
Circular Economy ◽  
Building Materials ◽  
Economic Benefits ◽  
Construction Sector ◽  
Knowledge Domain ◽  
Content Type ◽  
Digital Platforms ◽  
Challenges And Opportunities

PurposeReuse and recycling building materials depend on an efficient set of information and tracking, which can be obtained by the materials passport (MP) tool. Although MP introduces principles of circular economy (CE) and brings environmental, social and economic benefits, it is little-explored in the construction sector. The purpose of this study is to explore the adoption of the MP in the sector to raise awareness about this tool. This analysis leads to the conception of a model and identifies the main challenges and opportunities to increase MP implementation in the sector.Design/methodology/approachThrough a systematic literature review, based on the descriptive and thematic analysis, articles were selected, and analyzed to (1) review the MP state-of-the-art in the construction sector; (2) propose a materials passport model and (3) list the main challenges and opportunities to MP adoption.FindingsThe studies about MP were concentrated on strategies to implement general concepts and business opportunities. The MP model was proposed to overcome the lack of studies and understanding showed in the review. The model aimed to improve the recovery and reuse of materials across a building's life cycle. Challenges and opportunities were raised to direct decision-makers and support the development of this tool. A systematic regulation in the construction value chain and policy systems is crucial for creating digital platforms for data management of buildings' material.Originality/valueThis study developed an MP model to enable the management of building materials at different stages of the building's life cycle and contributes to future developments of the studies on this knowledge domain.

Polymer-Modified Cement Waterproofing Coating and Cementitious Capillary Crystalline Waterproofing Materials: Mechanism and Applications

2017 ◽  
Vol 726 ◽  
pp. 527-531 ◽  
Author(s):  
Yuan Yu ◽  
Tao Sun
Keyword(s):  
Building Materials ◽  
High Efficiency ◽  
Construction Material ◽  
Influence Factors ◽  
Single Layer ◽  
Economic Benefits ◽  
Real Estate Industry ◽  
New Type ◽  
Quality Guarantee ◽  
Construction Works

As the Integrant Construction Material for Infrastructure Construction and Real Estate Industry, Building Waterproof Materials is a Key Part of the Construction Quality Guarantee. it Plays an Important Role in Saving Energy, Reducing Consumption and Environmental Protection. it Lays the Foundation for the Realization of the Cleaning Production and High Efficiency for Economical Production. Currently, the Direction of Waterproof Construction is from Multi-Layer to Single Layer, from Heat to Cold Construction. there are many Different Kinds of Waterproof Materials on Building Materials Market. when the Waterproof Materials Need to Be Used for the Project, we should Deal with Problems Case by Case in Order to Be Able to Select the Waterproof Coating Suitable for the Characteristics of the Project. Attention Need to Be Paid for the Differences of the Constituents, the Physical Mechanical Properties and Characteristics, and Construction Points and Matters during Construction Works Polymer-Modified Cement Waterproofing Coating and Cementitious Capillary Crystalline Waterproofing Materials are Reviewed in the Present Study. Waterproof Mechanism and Influence Factors of its Application Discussed. as a New Type of Waterproof Materials, its Unique Advantage and Price Decline, it has been Widely Used in Industrial and Civil Buildings, and the Remarkable Economic Benefits and Social Benefits has been Achieved in Past few Years.

scholarly journals Numerical and Experimental Study of Lightning Stroke to BIPV Modules

Energies ◽  
2021 ◽  
Vol 14 (3) ◽  
pp. 748
Author(s):  
Xiaoyan Bian ◽  
Yao Zhang ◽  
Qibin Zhou ◽  
Ting Cao ◽  
Bengang Wei
Keyword(s):  
Numerical Simulation ◽  
Experimental Study ◽  
Coupling Model ◽  
Maximum Temperature ◽  
Lightning Stroke ◽  
Study Results ◽  
Pv Modules ◽  
New Type ◽  
Metal Frame ◽  
Current Flows

Building Integrated Photovoltaic (BIPV) modules are a new type of photovoltaic (PV) modules that are widely used in distributed PV stations on the roof of buildings for power generation. Due to the high installation location, BIPV modules suffer from lightning hazard greatly. In order to evaluate the risk of lightning stroke and consequent damage to BIPV modules, the studies on the lightning attachment characteristics and the lightning energy withstand capability are conducted, respectively, based on numerical and experimental methods in this paper. In the study of lightning attachment characteristics, the numerical simulation results show that it is easier for the charges to concentrate on the upper edge of the BIPV metal frame. Therefore, the electric field strength at the upper edge is enhanced to emit upward leaders and attract the lightning downward leaders. The conclusion is verified through the long-gap discharge experiment in a high voltage lab. From the experimental study of multi-discharge in the lab, it is found that the lightning interception efficiency of the BIPV module is improved by 114% compared with the traditional PV modules. In the study of lightning energy withstand capability, a thermoelectric coupling model is established. With this model, the potential, current and temperature can be calculated in the multi-physical field numerical simulation. The results show that the maximum temperature of the metal frame increases by 16.07 °C when 100 kA lightning current flows through it and does not bring any damage to the PV modules. The numerical results have a good consistency with the experimental study results obtained from the 100 kA impulse current experiment in the lab.

scholarly journals INFLUENCE OF MARKETING TOOLS ON IMPROVING PRODUCT QUALITY

2020 ◽  
Vol 15 (1) ◽  
pp. 111-116
Author(s):  
Margarita Karimova ◽  
Nazira Sagitova
Keyword(s):  
Quality Management ◽  
Product Quality ◽  
Building Materials ◽  
Marketing Research ◽  
Target Audience ◽  
New Type ◽  
Quality Of Products ◽  
Object Of Study ◽  
Competitive Product

The high quality of products and services is a guarantee of the company’s success in the market. The purpose of our study is to assess the feasibility of developing a new competitive product, taking into account the preferences of consumers. To achieve this, marketing tools aimed at product quality management were used. In the course of the work, a full cycle of marketing research was conducted, including questionnaires, the formation of a portrait of a consumer of products, and economic calculations. Object of study - a large regional enterprise - a center for sales of building materials. The work performed at the junction of two scientific fields (marketing and quality management) provided a synergistic effect in terms of cost reduction when creating a competitive product, and also allowed us to offer original recommendations for improving quality in general. According to the results of marketing research, which consisted in questioning the target audience using the free “Google Forms” service, such characteristics as “assortment” and “appearance” were recognized as the least satisfying consumers in the existing market for facing bricks. Based on the detailed analysis, a new type of product (“Chocolate velvet” brick) was developed that meets the wishes of the target audience of customers. An additional positive effect from the transition of the enterprise to its production in the amount of 91,600 conventional units per month will be an increase in profit, compared to 2017 (942,500 rubles), by 1,1533240 rubles, the expected efficiency of transferring an innovative product to production (profit growth / costs) will be 1.22. Determination of consumer requirements specifies the technological task during the transition to the production of a new type of product. Replacing the production of old-style finishing bricks with the release of a new type of product allows you to create a customized product that is guaranteed to find its customer due to its high customer loyalty

scholarly journals The Small-Scale Dairy Value Chain Analysis: Challenges And Opportunities For Dairy Development In Mymensingh District Of Bangladesh

2020 ◽  
Vol 17 (2) ◽  
pp. 213-226 ◽  
Author(s):  
H Rahman ◽  
FA Happy ◽  
AH Efan ◽  
MHR Hera
Keyword(s):  
Value Chain ◽  
Primary Data ◽  
Easy Access ◽  
Small Scale ◽  
Value Chain Analysis ◽  
Grazing Land ◽  
Market Prices ◽  
Challenges And Opportunities ◽  
Chain Map ◽  
Small Scale Dairy

This study examined the prevailing dairy value chain based on primary data collected from 70 small-scale milk producers of Mymensingh district of Bangladesh. The total cost and net return per month per cow were Tk. 4024.30 and Tk. 3165.70, respectively. The net value additions of Tk. 2091.42, Tk. 495.00, Tk. 655.00, Tk. 503.25, Tk. 309.70 were estimated for milk producers, collectors, Faria, Bepari and retailers respectively. Different actors spent highest marketing cost ranged from Tk.49 to Tk.80 for transportation compared to other marketing functions. Actors mostly dependent on the on-going market prices for setting price of milk in the value chain. A value chain map was developed showing the relationships and linkages among value chain actors of small-scale dairy. The study identified some critical factors for successful dairy marketing. The factors were understanding consumer behaviour, technology and transportation, improved business relationships, reduced transaction costs, and improved information flow, and organized market structure. Milk producer’s share in consumers’ price was highest for channel- I followed by channel- V. Expensive, inadequate, low quality feed, lack of grazing land, green grass, inadequate capital, knowledge about cost of production, weak extension services, high fees and unavailability of veterinary doctors, were some of the major problems of milk producers. Supply of adequate feed at subsidized price, ensuring easy access to institutional credit at a lower interest rate, adequate medicine and veterinary services, allocation of khas land for producing fodder/grass, were suggested to solve the problems. SAARC J. Agri., 17(2): 213-226 (2019)

Sustainable beef production in New England: policy and value-chain challenges and opportunities

2018 ◽  
Vol 43 (3) ◽  
pp. 274-298 ◽  
Author(s):  
Morgan A. Crowley ◽  
Kara E. Shannon ◽  
Isaac Sohn Leslie ◽  
Andrea Jilling ◽  
Cameron D. McIntire ◽  
...  
Keyword(s):  
New England ◽  
Value Chain ◽  
Beef Production ◽  
Challenges And Opportunities

A technology review of recycling methods for fiber-reinforced thermosets

2021 ◽  
pp. 073168442110552
Author(s):  
Xiao Xue ◽  
Shu-Yan Liu ◽  
Zhao-Yang Zhang ◽  
Qing-Zhou Wang ◽  
Cheng-Zhi Xiao
Keyword(s):  
End Of Life ◽  
Complex Structure ◽  
Waste Recycling ◽  
Fiber Reinforced ◽  
Reinforced Plastics ◽  
Thermal Pyrolysis ◽  
Challenges And Opportunities ◽  
Fiber Reinforced Plastics ◽  
Technology Review ◽  
Made In

The rapidly rising demand for fiber-reinforced plastics (FRPs) has led to large volumes of manufacturing and end-of-life waste. Recycling fiber-reinforced thermosets is very difficult owing to their complex structure and heterogeneity. Landfill and incineration have become the most commonly used methods for eliminating non-degradable FRP waste, which adversely affects the environment and ecology. The purpose of this review is to evaluate end-of-life FRP recycling technologies in terms of optimizing the reuse/recycling of resources and eliminating waste, thereby improving FRP waste management. The technical progress made in the recycling of thermosetting composites is reviewed, including mechanical, thermal (pyrolysis and fluidized-bed), and chemical (critical fluid and low-temperature solvent) methods. The technical feasibility of each method was compared, and the economic and environmental impacts were considered. The challenges and opportunities facing the establishment of a composite recycling market in the future are examined. Finally, we provide a comprehensive summary of the scope of each recycling method.

N.I.C.E.-Wire: Next Generation Robust Eco-Friendly Bifacial PV Modules With High Efficiency

2021 ◽  
pp. 1-7
Author(s):  
Daniel Kray ◽  
Soumi Bandyopadhyay ◽  
Laura Heuberger ◽  
Daniel Weiser ◽  
Dzevad Muranovic ◽  
...  
Keyword(s):  
High Efficiency ◽  
Next Generation ◽  
Pv Modules
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