climatology third sem

 CLIMATOLOGY

L/s: 3/Wk Int: 50 End Exam: 50 Total: 100 End Exam: 3hrs Cr:3

Course Overview: 
Science (tools, data, standards, methods and principles) of building design and site planning as related to climate, particularly to tropical climates as found in India.

Objectives of the Course:
 To equip the student with the basic understanding of climatic types in India, and the impact on requirements of building design and site planning; to introduce them to the basic science of building design and site planning for thermal comfort, daylighting and natural ventilation; familiarize them with the data, methods, principles, standards and tools for planning and designing for climatic comfort

Expected Skills / Knowledge Transferred:
 The student should be able to ‘predict’ climatic conditions in a given building (simple residence) and undertake redesign for given parameters

Course Contents:

 Note: 
The topics here to be dealt with keeping in mind Indian climatic conditions.
NBC and BIS guidelines / standards have to be introduced at all relevant contexts.

Unit – I Introduction to Building Climatology:
 Climate and built form interaction. Global Climatic factors, elements of climate, graphic representation of climatic data, Mahoneys Tables, macro and micro climate; challenge of rapid, extreme environmental change

Unit – II Tropical Climates:
 Definition, classification of tropical climates, characteristics of different climatic zones, Design considerations for warm-humid, hot-dry, composite and upland climates.

Unit – III Thermal Comfort:
 Thermal comfort factors, Physiological aspects, Body heat balance, comfort range, comfort charts.

Unit – IV Heat flow through Buildings:
 Basic principles of heat transfer through buildings, performance of different materials, Periodic heat flow.

Unit – V Sun and the Design process:
 Solar geometry, Solar charts, Sun angles and shadow angles, orientation for sun, sun control, design of shading devices, building form and heat gain, basic principles of daylighting, sunlight and glare.

Unit – VI Natural Ventilation:
 Air movement around and through buildings, Orientation for wind, stack effect, Induced ventilation.

Unit – VII Passive Cooling:
 Passive methods of Cooling, roof pond, desiccant cooling, evaporative Cooling, and earth sheltered buildings etc. Site Planning (including landscaping) and building planning and design considering climate factors Detailed appraisal/analysis of climatological performance of an existing residence and or a workplace; followed by redesigning or the same to improve climatological performance.

Reference books:
Koenigsberger, O.H. and Others. Manual of Tropical Housing and Building. Orient Longman, Chennai, 2003. Konya, Allan. Design for Hot Climates. Kukreja, C.P. Tropical Architecture. Tata McGraw-Hill Pub. Co. Ltd., New Delhi, 1978. Markus, T.A. and Morris. E.N. Buildings, Climate and Energy. Pitman Pub. Ltd., London, 1980. Olgyay and Olgyay. Solar Control and Shading Devices.