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A new approach for predicting cooling degree-hours and energy requirements in buildings

Oktay, Z.; Coskun, C.; Dincer, I. - In: Energy 36 (2011) 8, pp. 4855-4863

and minimum temperatures. A case study is performed to calculate the cooling degree-hours for 58 cities in different … other advantage of this approach is that it allows the prediction of monthly cooling degree-hours for buildings. …

Persistent link: https://www.econbiz.de/10010811526

Dynamic temperature dependence patterns in future energy demand models in the context of climate change

Hekkenberg, M.; Moll, H.C.; Uiterkamp, A.J.M. Schoot - In: Energy 34 (2009) 11, pp. 1797-1806

Energy demand depends on outdoor temperature in a ‘u’ shaped fashion. Various studies have used this temperature dependence to investigate the effects of climate change on energy demand. Such studies contain implicit or explicit assumptions to describe expected socio-economic changes that...

Persistent link: https://www.econbiz.de/10010808704

Development of a software package for community energy system assessment – Part I: Building a load estimator

Chung, Mo; Park, Hwa-Choon - In: Energy 35 (2010) 7, pp. 2767-2776

demands for electricity, heating, cooling, and hot water for the mix of building types for 8760h of a year. The calculation is …

Persistent link: https://www.econbiz.de/10010811292

Experimental investigation of a vapor compression heat pump used for cooling and heating applications

Fatouh, M.; Elgendy, E. - In: Energy 36 (2011) 5, pp. 2788-2795

) for various operating modes namely: cooling, heating and simultaneous cooling and heating. Results showed that COP … of condenser water inlet temperature. Actual COP of cooling mode between 1.9 to 3.1 and that of heating mode from 2.9 to … simultaneous space cooling (summer air conditioning) and hot water supply. In order to achieve this objective, a test facility was …

Persistent link: https://www.econbiz.de/10011054752

Rule-based Mamdani-type fuzzy modeling of heating and cooling performances of counter-flow Ranque–Hilsch vortex tubes with different geometric construction for steel

Berber, Adnan; Dincer, Kevser; Yılmaz, Yusuf; Ozen, … - In: Energy 51 (2013) C, pp. 297-304

In this study, heating and cooling performances of counter-flow Ranque–Hilsch vortex tubes (RHVT) were experimentally … RBMTF can be successfully used for the determination of heating and cooling performances of counter-flow RHVT with different …

Persistent link: https://www.econbiz.de/10011055964

Wind characterization analysis incorporating genetic algorithm: A case study in Taiwan Strait

Liu, Feng-Jiao; Chen, Pai-Hsun; Kuo, Shyi-Shiun; Su, … - In: Energy 36 (2011) 5, pp. 2611-2619

In this paper, the genetic algorithm (GA) is originally applied to compute the Weibull parameters for wind characterization analysis, in which an objective function required in GA for searching optimization solution has been first defined as well. Wind data analyzed are observed at a wind farm...

Persistent link: https://www.econbiz.de/10010808029

Validity analysis of maximum entropy distribution based on different moment constraints for wind energy assessment

Liu, Feng Jiao; Chang, Tian Pau - In: Energy 36 (2011) 3, pp. 1820-1826

Knowing about wind speed distribution for a specific site is very essential step in wind resource utilizations. In this paper, a probability density function with the maximum entropy principle is derived using different algorithm from previous studies. Its validity considering various numbers of...

Persistent link: https://www.econbiz.de/10010810492

A geographic method for high resolution spatial heat planning

Nielsen, Steffen - In: Energy 67 (2014) C, pp. 351-362

In many countries, DH (district heating) covers a large share of the heat market. In these countries, the best …

Persistent link: https://www.econbiz.de/10010808601

Energy analysis of a solar-ground source heat pump system with vertical closed-loop for heating applications

Bakirci, Kadir; Ozyurt, Omer; Comakli, Kemal; Comakli, Omer - In: Energy 36 (2011) 5, pp. 3224-3232

A heat pump system is the ideal way to extend the heat supply of existing oil or gas fired heating system. Consumption … heating in the province of Erzurum being a cold climate region of Turkey. …

Persistent link: https://www.econbiz.de/10010809086

Effect of a superheating and sub-cooling heat exchanger to the performance of a ground source heat pump system

Bakirci, Kadir; Colak, Derya - In: Energy 44 (2012) 1, pp. 996-1004

The aim of this study is to evaluate the effect of a superheating and sub-cooling heat exchanger (SHCHE) to the … January and February which are the coldest months of the heating season. The experimentally obtained results were used to …

Persistent link: https://www.econbiz.de/10010810381