The future energy system could benefit from the integration of independent gas, heat and electricity infrastructures. Such a hybrid energy network could support the increase of intermittent renewable energy sources by offering increased operational flexibility. Nowadays, the expectations on Natural Gas resources forecast an increase in the application of Liquefied Natural Gas (LNG), as a means of storage and transportation, which has a high exergy value. Therefore, we analyzed the integration of decentralized LNG regasification with a Waste-to-Energy (W2E) plant for a practice-based case to get an idea on how it might affect the balancing of supply and demand, under optimized exergy efficient conditions. We compared an independent system with an integrated system that consists of the use of the LNG cold to cool the condenser of the W2E plant, as well as the expansion of the regasified LNG in an expander, using a simplified deterministic model based on the energy hub concept. We use the hourly measured electricity and heat demand patterns for 200 households with 35% of the households producing electricity from PV according to a typical measured solar insolation pattern in The Netherlands. The results indicate that the integration affects the imbalance for electricity and heat compared to the independent system. If the electricity demand is met, both the total yearly heat shortage and heat excess are reduced for the integrated system. If the heat demand is met, the total yearly electricity shortage is also reduced (with 100 MWh). However, the total yearly electricity excess is then increased (with 300 MWh). We observed that these changes are solely due to the increase in exergy efficiencies for heat and electricity of the W2E Rankine cycle. The efficiency of the expander is too low to offer a significant contribution to the electricity demand. Therefore, future research should focus on the affect that can be obtained by to other means of integration (e.g. Organic Rankine Cycle and Stirling Cycle).
This introduction to the special issue on events as platforms, networks, and communities reviews recent research on these subjects. It outlines the previous work of the ATLAS Events Group in developing a “network approach to events,” as well as conceptualizing the differences between event networks and platforms.
MULTIFILE
All over the world entrepreneurs drive changes. They develop new products and services, inspire others and take decisions that result in growth of their businesses. But the world around entrepreneurs is changing and so are entrepreneurs. Life-long selfemployment or permanent wage employment are of the past. And the way people perceive self-employment is changing as well. And so must our thinking. Changes in our society call for policies and programmes in support of enterprising people. Diversity, mobility and connectivity offer new opportunities for enterprising people. Markets are changing, become more accessible and there is less need to be bound physically to one place for an entrepreneur. New avenues for business are open thanks to our improved access to information, our connectivity globally through social media and our ability to travel freely and frequently from one country to another. With less focus on life-long (self) employment people now combine paid work (or unpaid – house- work) with self-employment, or opt for just parttime entrepreneurship. New, hybrid forms of enterprising emerge. This combining of work with self-employment is rather common in developing countries, but in Europe it is a phenomenon not yet reported on in statistics and for which policy makers and service providers have no answers yet. Neither exist clear definitions or classifications. This book may serve as an eye-opener: hybrid entrepreneurs are indeed around us and deserve our attention. The research unit Financial Inclusion and New Entrepreneurship of The Hague University of Applied Science challenges policy makers, academics and service providers (such as educational institutes, business advisers and financial institutions) to pay more attention to hybrid entrepreneurs, those enterprising people who intend to create new values for a fair and sustainable society. They might not yet been seen, but they exist…..
