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Food Waste to Energy through Innovative Coupling of CHP and Heat Pump
Jan Drofenik, Danijela Urbancl, Darko Goričanec, Zdravko Kravanja, Zorka Novak-Pintarič, 2023, izvirni znanstveni članek

Opis: This paper presents the conceptual design of a technological solution for the efficient conversion of food waste into heat and power. The distribution and composition of food loss and waste at different stages of the food supply chain in Slovenia and their potential for biogas production were determined. It was found that more than 50% of food waste comes from households. Therefore, a small plant was designed to convert food waste into biogas, which was innovatively coupled with a combined heat and power (CHP) unit and a heat pump. This doubles the amount of heat generated compared to conventional cogeneration. Based on the capacity of a micro commercial CHP unit, 3330 households (about 8000 residents) would supply food waste. The heat generated could replace 5% of the natural gas used for domestic water heating. The payback period would be 7.2 years at a heat price of about 80 EUR/MWh, however, for municipalities with more than 40,000 inhabitants the payback period would be reduced to less than 3 years. The cost price of the heat generated by this system would be about 25 EUR/MWh, taking into account the government subsidy for the operation of the CHP unit.
Ključne besede: food waste to energy, biogas, combined heat and power, CHP, heat pump, efficiency, conceptual design, preliminary economic assessment, sensitivity analysis
Objavljeno v DKUM: 16.02.2024; Ogledov: 3257; Prenosov: 33
Celotno besedilo (19,44 MB)
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The direct and indirect relationships between design orientation and market orientation
Sanja Rocco, 2019, doktorska disertacija

Opis: The main purpose of this doctoral thesis is to investigate the relationship between design orientation and market orientation and propose a new conceptual model. Existing models were investigated. The initial conceptual model was proposed as the starting point. The research combined qualitative and quantitative methods. Quantitative research was conducted among managers and CEOs from Croatian companies in different industries. According to the final PLS-SEM model, design orientation has a direct and significant impact on market orientation and an indirect but significant impact on business success. Managerial approach has a direct and significant impact on design orientation, as well as on market orientation of a company. The new design orientation-market orientation model contributes to both marketing and design scholars, as well as implications for marketers, designers, and managers in practice. Our findings demonstrate that companies with higher level of market orientation and supported with design orientation also have the potential for achieving better results in the market and, consequently, better financial performance. It also provides the basis for future research on the topic.
Ključne besede: market orientation, design orientation, relationships, conceptual model, implications
Objavljeno v DKUM: 22.07.2020; Ogledov: 1574; Prenosov: 105
Celotno besedilo (6,06 MB)

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