Numerical simulation of cooling energy consumption in connection with thermostat operation mode and comfort requirements for the Athens buildings

Tzivanidis, C; Antonopoulos, KA; Gioti, F

dc.contributor.author	Tzivanidis, C	en
dc.contributor.author	Antonopoulos, KA	en
dc.contributor.author	Gioti, F	en
dc.date.accessioned	2014-03-01T01:36:32Z
dc.date.available	2014-03-01T01:36:32Z
dc.date.issued	2011	en
dc.identifier.issn	0306-2619	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/21324
dc.subject	Cooling energy saving	en
dc.subject	Air-conditioning control	en
dc.subject	Thermostat operation	en
dc.subject	Thermal comfort	en
dc.subject	Athens buildings	en
dc.subject.classification	Energy & Fuels	en
dc.subject.classification	Engineering, Chemical	en
dc.subject.other	SOLAR-RADIATION CORRELATIONS	en
dc.subject.other	THERMAL-COMFORT	en
dc.subject.other	HEAT-TRANSFER	en
dc.subject.other	RESIDENTIAL BUILDINGS	en
dc.subject.other	CONSERVATION	en
dc.subject.other	SYSTEM	en
dc.subject.other	PANELS	en
dc.subject.other	COEFFICIENTS	en
dc.subject.other	CONVECTION	en
dc.subject.other	SURFACES	en
dc.title	Numerical simulation of cooling energy consumption in connection with thermostat operation mode and comfort requirements for the Athens buildings	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/j.apenergy.2011.01.050	en
heal.identifier.secondary	http://dx.doi.org/10.1016/j.apenergy.2011.01.050	en
heal.language	English	en
heal.publicationDate	2011	en
heal.abstract	A model and a corresponding numerical procedure, based on the finite-difference method, have been developed for the prediction of buildings thermal behavior under the influence of all possible thermal loads and the "guidance" of cooling control system in conjunction with thermal comfort requirements. Using the developed procedure analyses have been conducted concerning the effects of thermostat operation mode and cooling power in terms of the time, on the total cooling energy consumption for the ideal space cooling, as well as for various usually encountered real cases, thus trying to find ways to reduce cooling energy consumption. The results lead to suggestions for energy savings up to 10%. Extensive comparisons between the ideal and various real cooling modes showed small differences in the 24-h cooling energy consumption. Because of the above finding, our detailed ideal cooling mode predictions gain considerable value and can be considered as a basis for comparison with real cases. They may also provide a good estimate of energy savings obtained if we decide to increase thermostat set point temperature. Therefore, as the extent of cooling energy saving is a priori known, one can decide if (and how much) it is worthy to increase thermostat set point temperature at the expense of thermal comfort. All results of the study, which refer to the Typical Athens Buildings during the typical Athens summer day, under the usual ranges of thermal loads, may be applicable to other regions with similar conditions. (C) 2011 Elsevier Ltd. All rights reserved.	en
heal.publisher	ELSEVIER SCI LTD	en
heal.journalName	APPLIED ENERGY	en
dc.identifier.doi	10.1016/j.apenergy.2011.01.050	en
dc.identifier.isi	ISI:000292712200030	en
dc.identifier.volume	88	en
dc.identifier.issue	8	en
dc.identifier.spage	2871	en
dc.identifier.epage	2884	en