Rehabilitation of the building envelope of hospitals: Achievable energy savings and microclimatic control on varying the HVAC systems in Mediterranean climates
TL;DR: In this article, the authors investigated the achievable energy savings by improving the thermal-physical characteristics of the building envelope, with reference to a medium-size hospital, located in Mediterranean climate, and analyzed the indoor comfort conditions as well as the reduction of energy demands, depending on the HVAC system.
About: This article is published in Energy and Buildings.The article was published on 2013-05-01. It has received 64 citations till now. The article focuses on the topics: HVAC & Energy recovery ventilation.
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TL;DR: In this article, a review on three streams of life cycle studies that have been frequently applied to evaluate the environmental impacts of building construction with a major focus on whether they can be used for decision making is provided.
547 citations
TL;DR: In this paper, an office building is analyzed, with reference to the entire cooling season (from May 1st to September 30th), in reliable conditions as regards building use, and thus internal gains, occupancy, activation of cooling systems.
267 citations
TL;DR: In this paper, a cost-optimal energy retrofit solution for complex buildings such as hospitals is proposed by combining EnergyPlus and MATLAB® with the aim of minimizing the computational burden required to achieve reliable outcomes.
147 citations
TL;DR: In this paper, the authors present an investigation methodology, useful for designers and other stakeholders involved in hospital energy refurbishments, based on an integrated approach which combines dynamic energy performance simulations and experimental campaigns.
93 citations
TL;DR: In this paper, a review of the research papers and practical studies on energy efficiency and energy saving potentials on HVAC systems at the hospitals are presented, including the latest literatures including research articles, conferences, e-books, handbooks and company reports interested in energy efficiency, energy saving and energy management.
Abstract: The energy use in the world is increasing significantly owing to increase in per capita consumption of energy and growing population. Due to increased energy demand and the depletion of existing fossil fuel based sources, it is required to use the energy more efficient. Researches show that, hospitals represent approximately 6% of total energy consumption in the utility buildings sector. Heating, Ventilation and Air Conditioning (HVAC) systems are the major part of electrical energy consumption at the hospitals. In this paper, the research papers and practical studies on energy efficiency and energy saving potentials on HVAC systems at the hospitals are presented. Under the following sections, the latest literatures including research articles, conferences, e-books, handbooks and company reports interested in energy efficiency, energy saving and energy management HVAC systems are summarized. Variant Refrigerant Flow (VRF) technology enables greater energy efficiency and cost savings compared with traditional HVAC systems is also introduced. This detailed review also focuses on the payback periods of some projects on HVAC including the installation of cogeneration, trigeneration, chiller, new burners, heat exchangers and steam trap systems.
86 citations
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TL;DR: In this paper, the impact of using cool roof coatings on cooling and heating loads and the indoor thermal comfort conditions of residential buildings for various climatic conditions is estimated, and the results show that increasing the roof solar reflectance reduces cooling loads by 18-93% and peak cooling demand in air-conditioned buildings by 11-27%.
478 citations
TL;DR: In this article, the authors present a review of state-of-the-art passive cooling dissipation techniques in the built environment and their contribution in the improvement of indoor environmental quality as well as in the reduction of cooling needs.
371 citations
TL;DR: In this paper, the authors reviewed standards and guidelines on design, installation, commissioning, operation, and maintenance of HVAC installations in hospital operating rooms, indoor thermal conditions, and summarized measured data from short monitoring of indoor thermal condition along with audit results and main characteristics of 20 ORs in 10 major Hellenic hospitals.
231 citations
TL;DR: In this article, the authors present a study on representative wall thermal insulation configurations used in Greek buildings, in order to investigate the impact of the thermal bridges on the energy consumption, and highlight the potential for energy renovation measures in older buildings.
184 citations
TL;DR: A multi-criteria approach for the energy refurbishment of historical buildings, proposing methodologies for the performance analysis, coupling several experimental and numerical studies, is suggested to evidence a best-practice specified for the Italian territorial context.
184 citations