ZinSchool_M


Zin Elementary School

Medreshet Ben-Gurion, Israel, 2010, 2080 sqm
Ramat Hanegev Regional Council
Donor: Andre and Katherine Merage
Architecture: Levin Architects
RecoD Consulting: Climatic and Sustainable Design
First Place in Competition,  the 3rd International Conference for Green Building, 2012

Description

[reduced width]The Zin Elementary School, named after Andre and Katherine Merage, which is located at the Ben-Gurion educational campus, was chosen by the Israeli Ministry of Education to be planned as one of 6 green schools in honor of 60 years of Israel’s independence. Therefore it was planned to accommodate the local desert climate. The design employed several climatic strategies, such as passive cooling of the building mass through summer night ventilation, and winter passive heating through southern windows. In addition, a special emphasis was given to providing quality daylight, to ensure quality daylight, which alongside significant energy conservation considerably improves the pupils performance, mood, and health.

In order to establish quality daylight, classroom windows were oriented to the south and to the north, the southern windows included upper windows and light shelves, Roof Monitors were designed to enable better daylight in the classroom depth, and in the window interior, shading systems were installed to prevent glare from low winter sun angles. To take advantage of the daylight and to improve energy efficiency, efficient lights were installed. These were divided into electrical circuits according to zones of daylight availability, and were controlled by light and occupancy sensors. 

Beside the main windows, in all classrooms additional (upper and side) windows were designed to provide cross natural ventilation. Such ventilation provides fresh air, helps in releasing hot air (naturally produced by the pupils), and improve thermal comfort in spring and fall. In addition to the mechanical systems of cooling and heating, additional systems of forced ventilation were installed to comply with the requirement for fresh air and to cool the building mass (interior walls and floors) through night ventilation during summer. The building envelope consists of interior thermal mass and exterior insulation to improve the efficiency of cooling. Passive heating of the classrooms and halls was established through Sothern windows.

The design process included climatic and sustainability consulting from the early stages of design, and the use of climatic simulations to support design decisions in these early stages. The design process included practical-research (which is applied research carried out in practice, enabling better climatic performance); and in the framework of post occupancy evaluation, illuminance measurements and luminance photography were carried out. [/reduced width]

Climatic Analysis

Sketches of initial daylighting investigations

Sketches of initial daylighting investigations

 

Areas of daylighting investigation during initial design

Areas of daylighting investigation during initial design

 

Simulation of reflected sunbeams in southern windows during noon; during initial design

Simulation of reflected sunbeams in southern windows during noon; during initial design

 

Simulation of reflected sunbeams in southern windows during school hours (fall / spring, 08:00-14:00)

Simulation of reflected sunbeams in southern windows during school hours (fall / spring, 08:00-14:00)

  

Simulation of natural illuminance levels of selected daylighting alternatives (North-South section at Dec. 12:00)

Simulation of natural illuminance levels of selected daylighting alternatives (North-South section at Dec. 12:00)

 

Simulation of natural illuminance levels of selected daylighting alternatives (Southern classroom at Dec. 12:00)

Simulation of natural illuminance levels of selected daylighting alternatives (Southern classroom at Dec. 12:00)

 

Evaluation of thermal conditions in typical classroom (using Energy Plus Simulation)

Evaluation of thermal conditions in typical classroom (using Energy Plus Simulation)

 

Evaluation of energy demand of several climatic alternatives (using Energy Plus Simulation)

Evaluation of energy demand of several climatic alternatives (using Energy Plus Simulation)

 

Design concepts of natural air flow

Design concepts of natural air flow

 

Daylight Simulation of Final Design

Daylight Simulation of Final Design

Post Occupancy Evaluation

Measurements of summer natural illuminance (lux) at 14.6.11 during 14:00-16:00

Measurements of summer natural illuminance (lux) at 14.6.11 during 14:00-16:00

 

Glare analysis of typical classroom through High Dynamic Range (HDR) photography

Glare analysis of typical classroom through High Dynamic Range (HDR) photography

 

Luminance High Dynamic Range (HDR) photography (enables measuring luminance with conventional digital cameras)

Step 1: Luminance High Dynamic Range (HDR) photography (enables measuring luminance with conventional digital cameras)

 

Generating luminance map from HDR photography

Step 2: Generating luminance map from HDR photography

 

Glare analysis

Step 3: Glare analysis

 

Student participation in activity to promote awareness for using daylight (with the assistance of Miss. Ailana Ram)

Student participation in activity to promote awareness for using daylight (with the assistance of Miss. Ailana Ram)

Photographs of the School

Southern facade, including light-shelves (before landscape development)

Southern facade, including light-shelves (before landscape development)

 

North West View

North West View

 

Northern facade (before landscape development)

Northern facade (before landscape development)

 

Native trees conservation

Native trees conservation

 

Drought Tolerant Plants (designed by Arch. Yael Rosenberg)

Drought Tolerant Plants (designed by Arch. Yael Rosenberg)

 

Outdoor Shading

Outdoor Shading

 

Interior of typical classroom

Interior of typical classroom

 

 

Public Area

Public Area

 

Public Area

Public Area

 

Alternative Transportation  (Photograph by Shira Noy)

Alternative Transportation (Photograph by Shira Noy)

Relevant Publications

Kaftan, Eran. 2012. Practical Research Supporting Climatic and Sustainable Design in ZinSchool. Conference Presentation. The 4th International Conference on Drylands, Deserts and Desertification (DDD 2012). Ben-Gurion University, Israel.

Kaftan, Eran & Levin Avinoam. 2012. First Place in Competition, in a Medium-size Buildings Category. In the 3rd International Conference for Green Building, Israel (managed by Bait Venoy).

Kaftan, Eran & Levin Avinoam. 2011. ZinSchool. Urban Space Exhibition. The Israeli Association of United Architects.

Dori, Yael. 2011. On Green Buildings in Israeli Educational Institutes.  Landscape Architecture Magazine. The Israeli Association of Landscape Architects. p.27-28.

Maor, Avital. 2012. Architecture Ecology and Theology. Bait Venoy Magazine, 127. p.148.