英语翻译In the EBEH method,the demand side building design param

英语翻译
In the EBEH method,the demand side building design parameters are also included in a coupling matrix and are evaluated together with primary energy options.I n t his way,for example,the demand side parameters ( U values,window-to-wall ratio,etc.) can be contrasted with the opportunity of using solar energy for t he production of electricity,and the optimum configuration can be calculated by maximizing the primary energy savings.The article introduces the basic principles of this approach.A preliminary practical demonstration is also developed through the application of a simplified procedure to a case study of an existing building.
Among the energy consumer groups,i t i s known that buildings account for almost one-third of t he global energy use i n a country,and consequently contrib ute,t o a g r eat extent,to greenhouse gas emissions.Therefore,the energy performance of buildings has become a subject that is frequently investigated and discussed by designers,re-searchers,policy makers,and appliers.The energy consumption of buildings depends on several f actors,such as indoor and outdoor climate,building fabric,HVAC systems,t he behavior of the occupants,etc.,and it is one of the major costs during t he life cycle of a building.Designers are,therefore,expected to choose t he best alter native,in ter m s of energy efficiency and economy,from among many technologies and options that exist.However,as a result of t he inter- dependent interactions between these variables,and the large number of parameters t hat have an impact on building energy perform ance,it can be rather difficult t o find the overall optimum alter native by only adopting best practice codes or traditional design methods.The introduction of optimization methods into the design process of buildings and systems allows the problem t o be approached rationally and rigorously.The “optimization” process can be described as an attempt to find the best possible values for a set of variables of a system,while satisfying various constraints.Lately,t here have been several research advances in the fields of both building energy efficiency and energy systems design and optimization ,b ut most of these studies have treated energy demand and supply separately and sequentially.In the first area,the energy saving potential achievable by means of intensive t her mal insulation,a dynamic and adaptive envelope,heat recover y units,passive heating and cooling,and free cooling has been investigated in g r eat depth and the result is a series of measures that can significantly reduce the energy consumption of a building.In the second field,besides an increase i n t he energy efficiency of traditional converters and the adoption of low energy equipment,there has been an increasing trend towards a greater use of r enew-able energy sources and the integration of various primary and secondary energy sources in a single system.

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