Aktiv-Stadthaus

Figure 1 Aktiv-Stadthaus, Rendering, South-West Perspective; Source: HHS Planer +Architekten AGInitial PositionWithin this research project, experiences and methods from recent developments ofnet-plus energy single family homes shall be transferred for the first time to largescaleurban multi-story buildings and the feasibility of implementation be examinedthrough a demonstration project, the Aktiv-Stadthaus (“active-city house”). TheAktiv-Stadthaus is a multi-family building to be developed by AGB FrankfurtHolding in FFM. Eight floors with a total of 74 units are currently projected.Research TopicTarget is a preparatory feasibility study for development and design of multi-familybuildings meeting the net-plus-energy standard. Its focus is laid on four coresubjects: Energy concept Electro mobility within the house community Energy management for the occupants Life cycle analysisEnergy ConceptThe energy balance is based on the definition of the „Effizienzhaus-Plus“ standardby the German Federal Ministry of Traffic, Housing and Urban Development(BMVBS) and was compared with balances in reference to passive house projectpackage (PHPP). Significant differences and recommendations are being noted andresented.Aktiv-Stadthaus | Executive Summary | TU Darmstadt | STZ | HHS | February 2013

Abdullahi Bin Umar (Radhi za MwenyeziMungu zimfikie) amekaa kuelekea chumba chaAisha, mara (Tukaona) Watu wanaswali msikitini swala ya Dhuha akasema Mujahiditulimuuliza Bin Umar kuhusu swala yao hiyo akasema, Ni uzushu. Kisha akamuliza nimara ngapi alifanya umra Mtume (Rehma na amani zimfikie) ? akasema Bwana Umarmara nne, Moja katika mara hizo, ni katika mwezi wa Rajab. Tukachukia kumrudishiajibu. Akasema Mujahid tulisikia mtafuno wa meno wa (15) Aisha mama wa wauminikatika chumba, akasema Ur–wah ewe mama! Ewe mama wa waumini! Hela husikiiayasemayo Abu Abdirahman? Akasema Aisha: Yuasema nini? Akasema Ur-wahyuasema „ hakika Mtume wa MwenyeziMungu (Rehma na Amani zimfikie) alifanyaumra mara nne, moja katika mara hizo ni katika mwezi wa Rajab. Akasema Aisha: Molaatamrehemu Abu Abdir Rahman,(16) Mtume hakufanya Umra yoyote isipokuwa yeyealimshuhudia, na hakufanya umra kamwe katika mwezi wa Rajab. Akasema: Na BinUmar alikuwa yuasikia. Hakusema: laa wala hakusema naam, alinyamaza.(17)Amesema mwanafunzi wa Imam Nawawiy aitwaye Al – Atwaar (Mola amrehemu)aliyekufa 724 Hijriya; Na kutokana na yaliyonifikia kutoka kwa watu wa Makkah –Mola aizidishie utukufu – walikuwa na mazowea ya kufanya umra mara nyingi katikamwezi wa Rajab.Haya ni mazungumzo ambayo sijui asli yake inatoka wapi(18) Lakini lau mtu ataendaumra katika mwezi wa Rajab bila ya kuingiza itikadi ya aina ya ubora bali hakuwa nanafasi (uwezo) isipokuwa wakati huo, kwa hivyo, hapana ubaya Inshaallah.UHAKIKA WA TANO: Kuhusisha mwezi wa Rajab kwa kufunga na itikafu: AmesemaBin Rajabu katika kitabu LATWAIFUL – MAARIF(228)„ Ama kufunga, hakuna hadithi sahihi hata moja kutoka kwa Mtume (Rehma na amanizimfikie) wala kutoka kwa maswahaba wake iliyotaja ubora wa kuuhusisha mwezi waRajab.Amesema Sheikhul Islam ibn Taimiyah; Ama kuuhusisha mwezi wa Rajab kwa kufunga,hadithi zake zote ni dhaifu, bali ni ( Maudhui) za kuzua, wasomi hawazitegemei hatamoja miongoni mwazo.Hadithi dhaifu hutumika katika mambo ya fadh-la ,yaliyomazuri,lakini hadithi zilizotaja ubora wa kufunga au kufanya umra katika mwezi wa Rajab , zoteni katika hadithi maudhui za urongo alizozuliwa Mtume(Rehma na Amani zimfikie).Lakini imeswihi (Athar) kwamba Umar Bin Al–Khatwab(Radhi za MwenyeziMunguzimfikie) alikuwa akipiga mikono ya watu ili waweke mikono yao kwenye chakula katikamwezi wa Rajab, (kuweka mikono kwenye chakula inamaanisha aliwalazimisha walechakula chao na akisema: Musiufananishe na Ramadhani, sijui kama kuna amri (katikasheria).(19)ATHARI NYENGINE ZIADA KUTOKA KWA WANAVYUONI WETUWALIOTANGULIA.(1) Imepokewa kutoka kwa Khar –shata Bin Al–HurriAmesema: Nilimuona Umar akiwapiga mikono wanaotarajia ( malipo ya funga ya mwezi

Figure 5: Global Warming Potential (GWP) from Building Construction and Building Operationover 50 years. Source: Unit of Design & Energy Efficient Building, TU DarmstadtKey DataShort Title: Aktiv-StadthausResearch/Project Management: TU Darmstadt, Department of Architecture, Unit of Design & Energy EfficientBuilding, Prof. Manfred Hegger (Project Management) Steinbeis-Transferzentrum Energie-, Gebäude und Solartechnik (STZ),Prof. Dr.-Ing. Norbert Fisch HHS Planer + Architekten AGThird Party Funding: ABG FRANKFURT HOLDING, Wohnungsbau- und Beteiligungsgesellschaft mbH Hager Vertriebsgesellschaft mbH & Co. KGProject term: December 2012 until incl. February 2013Aktiv-Stadthaus | Executive Summary | TU Darmstadt | STZ | HHS | February 2013