Some Observations on the Radiative Exchanges Influence on Thermal Comfort in Rectangular Open-Space Environments

Cannistraro²,

Restivo³

2015

IJHT

Self Cite

Thermo-hygrometric indoor conditions, as well known in literature, depend on the indices directly measurable in the place (Tba, Tbu, φa, va) and analytical solutions (Tmr, Top) and also on subjective assessments, metabolic activity carried out, and thermal resistance of clothing. They are tied to the subject occupied position within the work environment, substantially. In air conditioned rooms designed by systems with average parameters, it may happen that an individual, in some places or times, may feel sensations of thermal discomfort.These phenomena can be exacerbated by heat exchanges occurring in the presence of sources of radiation, such as radiant floors or ceilings or large glass surfaces sunny; these surfaces accentuate the radiative heat exchange with the body surfaces of the exposed individual. This paper proposes a "local mean radiant temperature" valid for the regular calculation of comfort in environments characterized by the presence of radiating surfaces. The present study compares the values of the parameters representing the hygrothermal comfort punctual, PMV, in environments characterized by radiating surfaces located in specific positions (ceiling, floor or walls), calculated with the local radiant temperature suggested in this study, with the corresponding values obtained with the mean radiant temperature proposed by the literature.

Section: Calculation Methodologymentioning

confidence: 99%

The Local Media Radiant Temperature for the Calculation of Comfort in Areas Characterized by Radiant Surfaces

Cannistraro²,

Restivo³

2015

IJHT

Self Cite

“…Many examples to achieve energy independence through the use of renewable energies of "Smart Island" are observable in Europe [1][2][3][4][5][6][7][8][9][10][11].…”

Section: Figure 2 Basin Received Hydroelectric Plantmentioning

confidence: 99%

“…The use of smart technologies "e-sensors" in the field of environmental monitoring, in residential buildings [11][12][13][14][15][16][17][18][19][20][21][22][23][24][25][26][27][28][29], hospitals and in the field of the historical buildings under protection and safeguard, will make achieve significant developments in the "smart city" and "smart islands", encouraging the growth of tourism and quality of life. The use of renewable energy in the new technologies and plant systems [30][31][32][33][34][35], will make a significant contribution to the sustainable development of Smarts Islands.…”

Section: S91mentioning

confidence: 99%

Islands "Smart Energy" for eco-sustainable energy a case study "Favignana Island"

Cannistraro²,

Trovato³

2017

IJHT

The term "Smart" in the last decade has often flanked other words to express a new and intelligent way of living in a modern society where you cannot separate the two synergic aspects: Energy and Sustainability. These latter two aspects flow into the new way of managing an isolated territory that often presents difficulties because of no interactions with the surrounding area; to remedy these difficulties has been developed in recent years the "Smart-Island" project, which involves many European countries and several sponsors. The concept of "SmartIsland" defines a way of life in an isolated environment, such as that of these islands, can solve independently, with the use of renewable and sustainable sources the energy needs of the island, with some projects that take into account the preservation and the wealth of the territory. In this paper, after a brief review of what has been proposed in some islands of the world, it will develop a case study, represented by the island of Favignana, which has particular characteristics in relation to its energy dependence.

“…In the operating rooms the patients are exposed to dangers characterized by two main factors [16][17][18][19][20][21][22]:…”

Section: Monitoring and Control Operating Roomsmentioning

confidence: 99%

“…So how similarly they determine the conditions of comfort in the various type of the buildings and assessment of pollutants in the environmental monitoring [21,26].…”

Section: Figure 3 Test Chamber With Variable Dimensionsmentioning

confidence: 99%

Hypothermia Risk, Monitoring and Environment Control in Operating Rooms

Cannistraro²

2016

IJHT

Self Cite

The air-conditioning systems in operating rooms must be able to ensure at the patients at the surgical team a high level of comfort indoor. There is many factors to consider and analyze in order to prevent the occurrence of problems such as hypothermia of the patient, the thermal discomfort for the medical team, and not least, pollution by anesthetic gases. The thermal comfort conditions within the operating rooms can be obtained by controlling microclimatic parameters such as: temperature, relative humidity and air velocity. In an environment maintained in the condition of health and thermal comfort are minimized risks related to the onset of post-operative complications. In this paper we present some studies reported in the literature on the methods used for environmental monitoring and control of operating rooms and HVAC systems; they are treated in the methodologies actually used to obtain a hospital environment in conditions of healthiness and thermal comfort. Are reported the result some simulations, obtained with the use of a model of the operating room in real scale, in them are analyzed ventilation rates suitable to obtain the chemical dilution of anesthetic gases and contaminants physical-biological. In the simulations we have determined the microclimatic parameters (air humidity and temperature) for prevent risks for patients such as hypothermia, and to ensure the comfort of the surgical team.