Mitigation of Hydropeaking in a Complex Riverine System: A State-of-the-Art Modelling Approach: A quantitative study with HEC-RAS modelling on hydropeaking by means of a case study in the Kalajoki basin (northern Finland)

Hydropeaking is a widely applied management practice in the generation of hydropower. When the demand in electricity is high, the operator of a hydropower plant rapidly increases released discharges to meet this demand. Vice versa, when the demand is low, no or less water is released. However, while river regulation practices offer valuable...

The environmental impact of e-moped sharing: A quantitative study into the environmental impact of e-moped sharing at city level

Trajectory optimization to minimize the environmental impact of departing and arriving aircraft

The aviation industry faces the challenge of reducing its climate eects. This paper aims to determine whether optimizing flight trajectories can reduce the environmental impact of aircraft during the climb and descent phases. It addresses the research gap in sustainable flight trajectory optimization by combining state-of-the-art research on...

The making of a sustainability label: Can a sustainability label change the textile industry

The textile industry is one of the largest industries in the world. It brings economic wealth to many countries but is also one of the largest contributors to environmental pollution. Textile companies nowadays often mention sustainability in their business models. However, it is noticed that consumers do not trust the word sustainability when...

Reducing packaging waste in the meal delivery industry: A quantitative evaluation study on handling methods for the reuse of food containers

Online meal delivery platforms are growing worldwide. Nevertheless, the takeaway business model is currently the major source of plastic packaging waste generation. The alarming growth of plastic pollution leads to action among governments worldwide resulting in single-use plastic bans. A handful of start-ups offer reusable food container...

Enhancing Supplier Retention on the Peerby Go platform

Peerby Go is a peer-to-peer platform on which people can rent stuff (demanders) and rent out their stuff (suppliers). For suppliers, the current experience is not optimally designed for repeated usage. By implementing motivational feedback elements for suppliers, the experience is steered towards long-term usage and in effect stimulates supplier...

Applying streamlined LCA to assess the environmental impact of the hotel branch

The Master’s programme Industrial Ecology is jointly organised by Leiden University and Delft University of Technology.

Optimal Vertical Extension: A study on costs and environmental impact for structural engineers

The motivation to adapt a building in terms of an upward vertical extension lies within the need for urban renewable programs. Although this practice has significant supports to make the built environment more sustainable, there are also barriers which invariably concern costs. In the case of vertical extension projects, the constructional and...

Sustainability Inspired Materials Selection App for Designers

This graduation thesis presents the results of the design of a sustainability inspired materials selection app for designers. Sustainable design, and in specific ecodesign plays an increasingly important role in society. However, industrial designers, being uniquely suited to take such considerations into account, have difficulty in finding the...

From Smartphone to Futurephone: Assessing the Environmental Impacts of Different Circular Economy Scenarios of a Smartphone Using LCA

The lack of literature on using life cycle assessment (LCA) for increasing environmental performance raises the need for concepts or eco-design tools to be combined with LCA to answer the question of how to strategize and take actions based on LCA results. This study intends to address this need by using mobile phones as a case study and...

Including indirect environmental impacts of large infrastructure projects in Cost Benefit Analysis

So far, current appraisals like Cost Benefit Analyses (CBA) for new road and railway infrastructure normally address direct and social environmental impacts (for example the benefit of reduced congestion or improved accessibility that leads to more users and vehicles and cause more environmental damage). Clearly, these impacts are caused during...

A Visual Life Cycle Analysis - for architects and policymakers

The impact of urbanizing 400 million people in China in 20 years - a comparative analysis of common structural materials with bamboo as a promising alternative for (semi) high-rise developments. Transport, End of Life scenarios and Lifespan are essential factors in a Life Cycle Analysis (LCA). The Building Energy Use itself is becoming less...

Effectiveness of Silt Screens

Dredging and reclamation works are known to generate significant amounts of turbidity. In most coastal zones around the world, the resulting clouds of suspended fine sediment bring along environmental risks. Dredging contractors take mitigating measures to prevent free spreading of turbidity, which is usually also demanded by their clients and...

Materializing the life cycle of the facade

The world today is struggling with several problems concerning the environment to which the building industry is contributing especially by pollution and resource depletion. This research calls for optimizing the way facades are constructed and materialized, in order to limit these problems. For this optimization to be accepted there has to be a...