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3. Energy Analyses and Optimization Proposals for Hotels in Sicily: A Case Study.

Author

Guercio, Andrea, Curto, Domenico, Franzitta, Vincenzo, Frascati, Margherita, Milone, Daniele, Martorana, Pierluca, and Mantegna, Miriam

Abstract

The recent post-pandemic period has economically affected many business sectors. One of these is the hotel industry. As a result of this economic crisis, it is necessary to act on the economic costs of running energy-intensive buildings such as a hotel. The thermal and electrical energy consumption of an accommodation facility weighs heavily on the economic balance. Governments around the globe have moved to help those activities in need. To improve the sustainability of the hospitality sector from an environmental and economic point of view, the introduction of energy retrofit solutions is mandatory. Following European sustainability laws, the impact and efficiency of the building were calculated using smart readiness indicators. The purpose of this paper is to present a case study of a 5-star hotel located in southern Italy characterized by high energy consumption. Precisely these consumptions are due to air conditioning, lighting, hot water, catering, and all other utilities. The entire building and the systems serving it were characterized by means of software that studies consumption with dynamic models, Trnsys. The same software made it possible to model the case study by replacing the existing air conditioning system with one supplied by renewable energies. Two energy retrofit hypotheses were chosen to obtain the best economic and environmental results. First, the choice was to install solar cooling powered by flat solar panels, and the second choice was solar cooling powered by evacuated tube collectors. This paper reports the technical and economic characteristics of both proposed solutions, quantifying the energy and economic savings to identify the best solution. [ABSTRACT FROM AUTHOR]

Published
2024
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28. Mostre

Author

Del Guercio, Andrea B., Casarosa, Mariarita, Moretti, Italo, and Savi, Vittorio

Published
1978

29. Investigation on a Bio-Composite Material as Acoustic Absorber and Thermal Insulation

Author

Andrea Guercio, Domenico Curto, Vincenzo Franzitta, Curto Domenico, Guercio Andrea, and Franzitta V.

Subjects
Control and Optimization, 0211 other engineering and technologies, Energy Engineering and Power Technology, 020101 civil engineering, 02 engineering and technology, engineering.material, USable, lcsh:Technology, 0201 civil engineering, Thermal insulation, 021105 building & construction, Thermal, Electrical and Electronic Engineering, Process engineering, Engineering (miscellaneous), Lime, Settore ING-IND/11 - Fisica Tecnica Ambientale, bio-composite material, lcsh:T, Renewable Energy, Sustainability and the Environment, business.industry, Fossil fuel, Energy consumption, Acoustic absorber, Bio-composite material, Thermal insulation, Sustainability, engineering, thermal insulation, Environmental science, acoustic absorber, business, Embodied energy, Energy (miscellaneous)
Abstract

In order to limit the anthropic emissions of CO2, research is currently investigating new materials for the building sector. The main purpose is the reduction in the embodied energy consumption, especially in the residential sector, and consequently the limitation of the direct and indirect utilization of fossil fuels, for the indoor heating, cooling, and ventilation services. Indeed, the residential sector is affected by a high energy demand, thus the choice of improved materials is fundamental to improve the sustainability. All phases: construction, building life, and dismantling are impacting in terms of resource and energy consumption, both associated with the emissions of pollutants in the atmosphere. The aim of this experimental research is to study the thermal insulation and the acoustic absorption of a material composed by natural lime, water, and shives from sativa hemp, a variety of hemp usable for industrial applications. In order to assess the main characteristics of this material, some specimens have been made according to required shapes and sizes to test them in specific machines. The results obtained from the tests are compared with the values of similar lime-based materials already available on the market. The comparison shows how, in certain aspects, the lime and hemp shives materials represent a concrete alternative to conventional materials. This completely natural material would like to achieve thermal and acoustic comfort in indoor environments.

Published
2020
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