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PASSIVE ARCHITECTURAL COOLING FOR THREE STOREY OFFICE BUILDING DESIGN CONCEPT

PASSIVE ARCHITECTURAL COOLING FOR THREE STOREY OFFICE BUILDING DESIGN CONCEPT. RTU Working group : KRISTAPS SAFRANOVS, JURIS SOROKINS, NATA LY KUZ N ECOVA, JEKATERINA NAZAROVA, J A NIS L U SIS ALEKSANDRS ZAJACS. PASSIVE BUILDING DESIGN PRINCIPLE. Conventional design Integrated design

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PASSIVE ARCHITECTURAL COOLING FOR THREE STOREY OFFICE BUILDING DESIGN CONCEPT

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  1. PASSIVE ARCHITECTURAL COOLING FOR THREE STOREY OFFICE BUILDINGDESIGN CONCEPT RTU Working group: KRISTAPS SAFRANOVS, JURIS SOROKINS, NATALY KUZNECOVA, JEKATERINA NAZAROVA, JANIS LUSISALEKSANDRS ZAJACS

  2. PASSIVE BUILDING DESIGN PRINCIPLE ConventionaldesignIntegrateddesign SHAPE •SOLAR PATH• SUSTAINABILITY N W E S

  3. BUILDING ENVELOPE KeyFeatures: • Structuralsupport • Thermalresistance • Controls • Aesthetic

  4. BUILDING ENVELOPE Northfacade Southfacade

  5. DAYLIGHT FACTOR 2-5%

  6. ILLUMINATION OF ROOMS December 24th June 24th March 24th

  7. RIGA SUN PATH

  8. INTERNAL COMFORT Northfacade Comfortoftheworkenvironment: • Solargain • Glare (contrast) Southfacade

  9. EXTERNAL EXPOSURE FACTORS • Outsidetemperature • Climate • Solarradiation • Sunpath • Wind

  10. EXTERNAL EXPOSURE FACTORS Windpressure Pv = 0.5 * ρl* v2ref Pv–windpressure, Pa; ρl – airdensity , kg/m3. Vref = Vmeteo* k * ha Vmeteo– knownwindspeedincertainarea, m/s; k – factordependingonterrain (0,68 – openflatterrain, 0,21 – megalopolis); h – height from the ground surface to theairintake, m; a – factordependingonplacement (0,17 – shoreline, 0,33 - city).

  11. Conclusions • Buildingis elipse-shapedwhichgivesthebestareaoftheenvelope/buildingspaceratioandadapts to the sun path; • Increasedproportion of glazed facades benefitsdaylightfactorandhasa positive impact on residents' health, wellbeing and productivity; • Atthesametimethisincreasecoolingload ofworkingspace, that'swhyofficeareaislocatedontheNorthside • Buildingusereflectedsunlightinsteadofdirect, whichreduseglareeffect; • Theuse of atrium contributesbuilding sustainabilitybyprovisionofnatural ventilation; • The aim of the architectural passive cooling is achievedbysettingcorrectlinesofaction – BUILDING SHAPE, SOLAR PATH, SUSTAINABILITY.

  12. PASSIVE ARCHITECTURAL COOLING FOR THREE STOREY OFFICE BUILDINGDESIGN CONCEPT RTU Working group: KRISTAPS SAFRANOVS, JURIS SOROKINS, NATALY KUZNECOVA, JEKATERINA NAZAROVA, JANIS LUSISALEKSANDRS ZAJACS

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