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      CUBATURES FOR MEDIUM-SIZED PLUS ENERGY BUILDINGS

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          INTRODUCTION

          On the basis of dynamic building simulations within a maximal realistic framework, it may be useful with respect to the overall energy balance to dispense with pursuing a minimal surface/volume ratio of buildings—thus minimizing heat losses across the building shell—in favor of solar energy use. The specific use of the building (here: office or residential) plays a crucial role. Balancing the energy demand for heating and cooling and a possible photovoltaic yield, a surplus is possible in all cases under investigation. Long, low unobstructed buildings perform best due to large portions of roof area suitable for solar energy use. For tall buildings with less roof area, parts of the facades may be used for solar applications which makes them also perform better than compact designs. If the total energy demand including auxiliary energy for HVAC and especially electricity for the office and residential usages, respectively, is considered, compact cubatures of the size considered here (about 3500 m 2) are not capable of providing positive energy balances. Residential usage performs worse than office use. Investigations are performed for the climatic conditions of Berlin, Germany.

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          APPLYING THE PASSIVE HOUSE STANDARD TO OFFICE BUILDINGS—HOW MUCH GLASS IS ADMISSIBLE?

          Enjoying a pleasant interior temperature in both summer and winter without the necessity for additional heating or cooling—a level of comfort already offered by private homes built with an eye to energy efficiency. What has become known as the passive house standard is now increasingly demanded in tenders and competitions revolving around office buildings. Below, Dr Friedrich Sick, professor at the HTW Berlin, and Stefan Schade, a graduate in Environmental Engineering/Renewable Energies who explored this particular field in his thesis [1], examine the conditions necessary for the implementation of this standard.
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            Author and article information

            Journal
            jgrb
            Journal of Green Building
            College Publishing
            1552-6100
            1943-4618
            1943-4618
            Spring 2017
            : 12
            : 2
            : 28-37
            Author notes

            1. PhD, Professor for Renewable Energies at HTW Berlin University of Applied Sciences, Wilhelminenhofstr. 75A, D-12459 Berlin, Germany, phone +49 30 50 19 36 58, fax +49 30 50 19 21 15, email: friedrich.sick@ 123456htw-berlin.de

            2. M.Sc., building physicist at Stahl+Weiß, Basler Str. 55, D-79100 Freiburg, Germany, phone +49 761 3890946, email: ross@ 123456stahl-weiss.de

            Article
            jgb.12.2.28
            10.3992/1943-4618.12.2.28
            © 2017 College Publishing
            Page count
            Pages: 10
            Product
            Categories
            INDUSTRY CORNER

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