Search results for " zero"

Improvement of Oxidative Status, Milk and Cheese Production, and Food Sustainability Indexes by Addition of Durum Wheat Bran to Dairy Cows’ Diet

2019

Durum wheat bran (DWB) is a by-product mostly used in feeding ruminants, contributing to decrease in the utilization of feeds suitable as foods for human consumption, thus improving the sustainability of livestock production. However, the potential benefits of DWB, due to its content in phenolic acids, mainly consisting of ferulic acid with antioxidant properties, have not been well clarified yet. Accordingly, in this experiment, 36 lactating cows divided into three groups received, over a period of 100 days, one of three concentrates including DWB at 0% (DWB0), 10% (DWB10), or 20% (DWB20). The concentrates were formulated to be isoproteic and isoenergetic and, to balance the higher fiber c…

Cumulative climatic stressors strangles marine aquaculture: Ancillary effects of COVID 19 on Spanish mariculture

2021

9 pages, 8 figures

Functional trait-based layers - an aquaculture siting tool for the Mediterranean Sea

2021

Abstract Aquaculture, the current fastest-growing food sector, is one of the major opportunities that could be reaped to cope with the increased demand for proteins from the sea and simultaneously generate economic growth while ensuring sustainable use of natural resources. The number of tools and approaches suggested to promote the selection of suitable areas - focusing mostly on the management of potential conflicting uses at sea - is rapidly increasing. However, to date, there is a lack of information regarding spatial planning according to a trait-based approach encompassing the functional and biological data of farmed species; a gap that may lead to selecting unsuitable areas for farmi…

Redesign di edifici a energia netta zero e caratterizzazione degli edifici scolastici nella Regione Sicilia

2013

Il presente rapporto finale descrive gli studi svolti in seno all’accordo di collaborazione tra ENEA e Dipartimento dell’energia, ingegneria dell’informazione e metodi matematici (DEIM) dell’ Università di Palermo) rivolto allo sviluppo di una ricerca dal titolo “Redesign di edifici a energia netta zero e caratterizzazione degli edifici scolastici nella regione Sicilia”. Tale report è suddiviso in due parti: la prima relativa all’analisi degli edifici ad energia netta zero con un particolare approfondimento sul caso-studio investigato, la Leaf House; la seconda è relativa all’analisi dei dati statistici disponibili in letteratura sul patrimonio edilizio scolastico siciliano.

Progettare i Net Zeb

2013

Edifici ad energia netta zero

2015

I significativi consumi di energia primaria riconducibili al settore civile d’utenza in Europa necessitano di incisivi interventi di retrofit energetico e di significative variazioni al design degli edifici di nuova costruzione per conseguire gli ambiziosi obiettivi contenuti nella programmazione energetica Europea previsti per il 2030. Un ruolo fondamentale nel conseguimento di tali obiettivi sarà svolto dagli edifici a energia netta zero. Gli Edifici a Energia Netta Zero ("Net Zero Energy Buildings" in breve NZEB), già entrati nel dibattito scientifico e nella legislazione comunitaria e nazionale, non rappresentano più un prototipo tecnologico dai confini incerti e dalle prestazioni non q…

Modeling of spanish household electrical consumptions: Simplified and detailed stochastic approach in trnsys environment

2013

The initial assessment of electric energy demands of a building is a key element in the design process, that should be integrated in the earlier stages of the design of a net zero energy building. The objective of the study is the creation of predictive models of household electrical consumptions in the Mediterranean/Spanish climate and its implementation in TRNSYS 17 environment. The models offer both a simplified level of analysis, based on average seasonal electrical consumptions trends and a stochastic in-depth level for the simulation of peak loads through the compiling of multiple TRNSYS types.

The Role of Natural Ventilative Cooling in NZE Temporary and Emergency Shelters Design: a Mediterranean Case Study

2016

The paper presents a case-study of a pre-fabricated housing module built in Messina (Sicily, Italy) and the assessment of its energy performances under the net zero energy perspective. The potential of ventilative natural cooling application in the case-study is also investigated. Some particular features of the building - the modularity, the prefabrication, the rapidity of assembly, the possibility of being built on disconnected soils and the absence of maintenance - identify an effective use as a temporary housing solution for e.g. workers in proximity of an isolated working place or in emergency situations such as earthquakes and natural disasters. Monitoring studies were performed durin…

Analysis of Load Match in Nearly Zero Energy Buildings

2018

The concept of load matching refers to the degree of agreement or disagreement of the on-site generation with the building load profiles: it can be increased and optimised with modifications on both the energy demand and generation. In this context, the paper presents the load match analysis of a case study: a modular housing construction (it has an area of 45 m 2 and S/V ratio equal to 2.75 m −1 ) built in Messina (Italy). Moreover, in order to optimize the design of the next test module to be built, a parametric analysis was performed considering different scenarios on the generation side, to explore the effectiveness of the solutions sets used in current design and plan different solutio…

A net zero energy building in italy: Design studies to reach the net zero energy target

2011

In the framework of international actions to reduce the energy requirements and greenhouse gases emissions due to buildings, a new International Energy Agency task has been recently established in order to study Net Zero Energy Buildings (NZEBs). The commonly shared concept of NZEB, is a building whose annual balance of energy consumptions tends to zero. This concept is still too imprecise and the authors of this paper participate to the activities of SubTask B of IEA Task40 with the aim of establishing an internationally agreed understanding on NZEBs. The task is based on a common methodology for identifying and refining design approaches and tools to support industry adoption of innovativ…