دانلود مقاله ISI انگلیسی شماره 70646
عنوان فارسی مقاله

جزیره گرمایی شهر لندن:تاثیر آن بر مصرف انرژی فعلی و آینده در ساختمان های اداری

کد مقاله سال انتشار مقاله انگلیسی ترجمه فارسی تعداد کلمات
70646 2012 10 صفحه PDF سفارش دهید محاسبه نشده
خرید مقاله
پس از پرداخت، فوراً می توانید مقاله را دانلود فرمایید.
عنوان انگلیسی
London's urban heat island: Impact on current and future energy consumption in office buildings
منبع

Publisher : Elsevier - Science Direct (الزویر - ساینس دایرکت)

Journal : Energy and Buildings, Volume 47, April 2012, Pages 302–311

کلمات کلیدی
جزیره گرمایی شهری؛ آب و هوای آینده؛ مصرف انرژی
پیش نمایش مقاله
پیش نمایش مقاله جزیره گرمایی شهر لندن:تاثیر آن بر مصرف انرژی فعلی و آینده در ساختمان های اداری

چکیده انگلیسی

This paper presents the results of a computational study on the energy consumption and related CO2 emissions for heating and cooling of an office building within the Urban Heat Island of London, currently and in the future. The study developed twenty weather files in an East-West axis through London; the weather files were constructed according to future climate change scenario for 2050 suitable for the UK which have been modified to represent specific locations within the London UHI based on measurements and predictions from a program developed for this purpose (LSSAT). The study simulated an office with typical construction, heat gains and operational patterns with an advanced thermal simulation program (IESVE). The predictions confirm that heating load decreases, cooling load and overheating hours increase as the office location moves from rural to urban sites and from present to future years. It is shown that internal heat gains are an important factor affecting energy performance and that night cooling using natural ventilation will have a beneficial effect at rural and city locations. As overheating will increase in the future, more buildings will use cooling; it is shown that this might lead to a five-fold increase of CO2 emission for city centre offices in London in 2050. The paper presents detailed results of the typical office placed on the East-West axis of the city, arguing the necessity to consider using weather files based on climate projections and urban heat island for the design of current buildings to safeguard their efficiency in the future.

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