End-of-Life Vehicles management: Italian material and energy recovery efficiency

2011 ◽  
Vol 31 (3) ◽  
pp. 489-494 ◽  
Author(s):  
Alessandro Santini ◽  
Luciano Morselli ◽  
Fabrizio Passarini ◽  
Ivano Vassura ◽  
Salvatore Di Carlo ◽  
...  
Author(s):  
Carl Dalhammar ◽  
Emelie Wihlborg ◽  
Leonidas Milios ◽  
Jessika Luth Richter ◽  
Sahra Svensson-Höglund ◽  
...  

AbstractExtended producer responsibility (EPR) schemes have proliferated across Europe and other parts of the world in recent years and have contributed to increasing material and energy recovery from waste streams. Currently, EPR schemes do not provide sufficient incentives for moving towards the higher levels of the waste hierarchy, e.g. by reducing the amounts of waste through incentivising the design of products with longer lifespans and by enhancing reuse activities through easier collection and repair of end-of-life products. Nevertheless, several municipalities and regional actors around Europe are increasingly promoting reuse activities through a variety of initiatives. Furthermore, even in the absence of legal drivers, many producer responsibility organisations (PROs), who execute their members’ responsibilities in EPR schemes, are considering promoting reuse and have initiated a number of pilot projects. A product group that has been identified as having high commercial potential for reuse is white goods, but the development of large-scale reuse of white goods seems unlikely unless a series of legal and organisational barriers are effectively addressed. Through an empirical investigation with relevant stakeholders, based on interviews, and the analysis of two case studies of PROs that developed criteria for allowing reusers to access their end-of-life white goods, this contribution presents insights on drivers and barriers for the repair and reuse of white goods in EPR schemes and discusses potential interventions that could facilitate the upscale of reuse activities. Concluding, although the reuse potential for white goods is high, the analysis highlights the currently insufficient policy landscape for incentivising reuse and the need for additional interventions to make reuse feasible as a mainstream enterprise.


2018 ◽  
Vol 77 (11) ◽  
pp. 2613-2623 ◽  
Author(s):  
Kerstin Schopf ◽  
Johannes Judex ◽  
Bernhard Schmid ◽  
Thomas Kienberger

Abstract A municipal wastewater treatment plant accounts for a large portion of the total energy consumption of a municipality. Besides their high energy demand, the plants also display a significant bioenergy potential. This is due to the utilisation of the energy content of digester gas and sewage sludge if there exist suitable units. To maximise the energy recovery efficiency of wastewater treatment systems (WWTS), it is important to analyse the amount of digester gas and sludge produced in different types of plants. Therefore, the present paper deals with designing a tool to answer the following research questions: Which bioenergy potentials occur in different plant types? Which mass and energy flows are related to the specific potentials? Which utilisation processes for the potentials can lead to a high energy recovery efficiency of WWTS? Preliminary analyses with the designed tool were focused on estimating the level of electric and thermal energy self-sufficiency of different plant configuration scenarios including or excluding digester gas and/or sludge utilisation units. First results based on the level of self-sufficiency and associated energy and disposal costs show that a digester gas and sewage sludge utilisation should be considered when designing future WWTS.


2019 ◽  
Vol 111 ◽  
pp. 01010
Author(s):  
David Hunt ◽  
Naoise Mac Suibhne ◽  
Laurentiu Dimache ◽  
David McHugh ◽  
John Lohan

The European Union’s 2020 and 2030 sustainable energy policies seek significant reductions in both energy consumption and carbon emissions. These policies demand a greater use of energy efficient technologies and a transition away from fossil fuels. This paper studies one such technology, an indoor climate control system with a reverse-flow enthalpy recovery ventilator, capable of recovering both sensible and latent heat. The thermal performance characteristics are established using an experimental facility and calculation methods defined by European Standard EN 13141-7:2010. This involves measurement of temperature, humidity, pressure and volumetric air flow rates over a range of operating conditions. Total thermal energy recovery rates ranged from 0.63 kW to 2.2 kW, with energy recovery efficiency of 72.8 % to 88.6 %. The recovery efficiency ratio, which reflects the capacity of the indoor climate control system to recover thermal energy relative to its power consumption ranged between 6.87 to 19.97. Due to the unique reverse-flow defrost function, the system demonstrates operation down to -7 °C without frost formation. These results highlight the potential that this system can make towards the EU goals of reducing energy consumption, operating costs and carbon emissions associated with indoor climate control.


2017 ◽  
Vol 872 ◽  
pp. 331-336 ◽  
Author(s):  
Zhi Jun Guo ◽  
Dong Dong Yue ◽  
Jing Bo Wu

The regenerative braking strategy for precursor pure electric vehicle was studied in this paper. Firstly, a constraint optimization model was established for the braking force distribution, in which both braking stability and recovery efficiency of braking energy were taken into account. Secondly, Particle Swarm Optimization (PSO) algorithm was applied to optimize the multi key parameters in the model. Finally, the optimized braking torque of the motor was obtained at different speed, different braking strength and different battery charge state. A vehicle model was built to validate the optimized results through simulation. The results showed that, compared with the original control strategy, the optimized control strategy not only could increase the braking stability effectively, but also improve the energy recovery efficiency in a certain extent.


Author(s):  
Vishnupavya Umasankar ◽  
Danyaa Manjai V Mohan ◽  
Vishvapriya kalaivanan ◽  
Deepika sree Krishnakumar ◽  
Vasudevan Mangottiri ◽  
...  

2018 ◽  
Vol 240 ◽  
pp. 02003 ◽  
Author(s):  
Marek Borowski ◽  
Marek Jaszczur ◽  
Daniel Satoła ◽  
Sławosz Kleszcz ◽  
Michał Karch

Heating, ventilation and air conditioning systems are responsible for a nearly 50% of total energy consumption in operated buildings. One of the most important parts of the ventilation system is an air handling unit with a heat exchanger for energy recovery which is responsible for effective and efficient energy recovery from exhaust air. Typically heat exchangers are characterised by the producers by heat and humidity recovery efficiency up to 90% and 75% respectively. But these very high values are usually evaluated under laboratory conditions without taking into account a dynamic change of outdoor and indoor air conditions significantly affecting the recovery efficiency. In this paper, results of thermal, humidity and enthalpy recover efficiency of innovative energy recovery exchanger have been presented. The analysed system allows adjustment of the humidity recovery especially useful in the winter period and forefends energy use for an anti-froze system of energy exchanger. Presented result show that analysed innovative system can achieve the value of thermal efficiency recovery higher than 90% and efficiency of humidity recovery about 80%. This is possible because the analysed system is able to work without the use of any primary source energy or other anti-freeze systems. Presented in this research unique solution is able to work without external anti-freeze systems even in extremely adverse outdoor air conditions such as minus 20°C and humidity 100% RH.


2018 ◽  
Vol 119 ◽  
pp. 150-159
Author(s):  
Fanghua Ye ◽  
Jianqiang Deng ◽  
Zheng Cao ◽  
Kai Liu

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