P4: Energy 2

14 Jul 2017

11:30

A104

		1. Utilization of Degree Day Method to Determine the Theoretical Maximum Production Potential of a Gas Turbine
		Umit Unver and Alper Kelesoglu (Yalova University, Turkey); Muhsin Kılıç (Uludağ University, Turkey)
		Because of their advantages like fast construction and fast start-up gas,turbines are one of the most widely used turbines in power generation.,Therefore, maximum benefit and maximum efficiency should be aimed in,operation of these devices. Generally, operation conditions are used for,ensuring the maximum efficiency but since gas turbines are volumetric,flow machines they are highly affected from the environmental conditions,and mainly from the atmospheric temperature. Thus, the climate of the,location of these devices has a vital importance on their production and,this paper is addressed to the analysts to help them by digitizing the,extra production during the selection of the location of gas turbines.,In this study, statistical analyses are performed to define the equation,of the relationship between the ambient temperature and power,generation for various locations with different climates. The,Degree-Days of 23 different provinces were utilised in the equation of,the ambient temperature – power generation relation with a novel Gas,Turbine Degree Day approach. The results indicated that if the gas,turbine system was constructed in Erzurum province theoretical maximum,production potential would be 4975 MWh/year more than the actual,location.
		2. Assessment of Environmental Aspects on Comfort Perception in Buildings in Mediterranean Region
		Panagiota Antoniadou, Effrosyni Giama and Agis M. Papadopoulos (Aristotle University of Thessaloniki, Greece)
		Environmental aspects are of high priority for the identification and,evaluation of the parameters that affect the design and construction of,buildings. The improvement of the environmental aspect of the existing,European building stock is essential, as the construction domain is,responsible for 38% of the total final energy consumption. In this,framework, the implementation and set of goals determined in both the,Directive 31/2010/EU and “20-20-20” targets and considering the,occupants’ comfort sensation, is imperative for creating an,environmental friendly building. In this line of approach, an integrated,evaluation of the indoor environmental parameters was conducted in,three office buildings, located in Thessaloniki, Greece, based on the,occupants’ comfort sensation. The climate characteristics of the area,are similar to those of a series of Mediterranean cities, like Split,,Brindisi or Toulon, and all buildings operate under the same,microclimate conditions. The environment evaluation was carried out,through both in situ monitoring of the indoor air quality and a revealed,preference survey, determining both the occupants’ perceived comfort,sensation in a Likert scale and the CO2 concentration levels during the,winter and summer period. In detail, an inferential statistical analysis,is conducted, specifying the statistically important correlations,,regarding the perceived occupants’ comfort sensation and a variety of,environmental relative parameters focusing on thermal comfort, health,and wellbeing of the occupants’ based on integrated green certification,schemes for buildings such as BREEAM and LEED. In conclusion, the,determination of the existing correlations between the perceived comfort,sensation and a variety of environmental parameters is imperative as,they can both outline the weight of every aspect based on the occupants,view and help the policy makers to accomplish the vision of an,environmental sustainable, not only concerning the energy consumption,but also the occupants, building.
		3. Integrating and processing building energy data to support decision making
		Leandro Madrazo, Álvaro Sicilia, Marco Massetti, Fabian López Plazas and Eric Ortet (ARC Engineering and Architecture La Salle and Ramon Llull University, Spain)
		The vast amount of data from multiple domains and sources available,today is a valuable resource for improving energy use in buildings. We,have created ENERSI, a platform which enables the development of,services to integrate and analyse data from multiple sources. In this,paper, we present two services to analyse Energy Performance,Certificates (EPC) along with other source of data: one that enables,building owners to know the performance of their dwelling, and suggests,recommendations to improve it; and a second one, for city planners to,assess the performance of a district, municipality or region, in order,to identify urban areas and groups of buildings to be improved, and the,investment costs
		4. Geographic Floating Photovoltaic Potential
		Giuseppe Marco Tina (University of Catania, Italy); Raniero Cazzaniga, Marco Rosa-Clot and Paolo Rosa-Clot (Koinè, Italy)
		The PV geographic potential (PVGP) is defined as the fraction of the,solar irradiation received on the land available for the PV facility.,The area of this usable land is calculated by a suitability factor which,is found considering a variety of different geographical constraints.,We extend this kind of analysis to the floating structures, so,considering the use of water surfaces, with the same definitions and,notations used to define the PVGP for systems installed in the ground.,Results are very promising because of the large water surfaces available,and because of the possibility to build floating structure more compact,that land based PV plants.