Indoor Environmental quality of Green Building Green-Building Strategies for the Mitigation of Climate Change 08-11-2011 to 10-11-2011 CCCEA, Dr. MCR Human Resource Development Institute of AP Dr. N. Sai Bhaskar Reddy Chief Executive Officer [CEO], GEOECOLOGY ENERGY ORGANISATION [GEO] http://e-geo.org
Presentation made for the city and town planning officers, Centre for Climate Change and Environment Advisory, Dr. MCR-HRD IAP, by Dr. N. Sai Bhaskar Reddy
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Indoor Environmental quality of Green Building
Green-Building Strategies for the Mitigation of Climate Change
08-11-2011 to 10-11-2011CCCEA, Dr. MCR Human Resource Development
Institute of AP
Dr. N. Sai Bhaskar ReddyChief Executive Officer [CEO],
GEOECOLOGY ENERGY ORGANISATION [GEO]
http://e-geo.org
Indoor environment
Building indoor environment covers the environmental aspects in the design, analysis, and operation of energy-efficient, healthy, and comfortable buildings. Fields of specialization include
Indoor air pollution is the presence of one or more contaminants indoors that carry a certain degree of human health risk. Indoor air issues may be traced to the beginning of civilization. Prehistoric records note the problem of smoke in caves.
Field studies of human exposure to air pollutants indicate that indoor air levels of many pollutants may be two to five times, and on occasion more than one hundred times, higher than outdoor levels.
Sources of Indoor Pollutants
Based on Specific Building
Combustion activity
Furniture
Chemical
Building materials Food Water
Smoking activity
Outdoor air pollution
Sick building syndrome
Condition associated with complaints of discomfort including headache; nausea; dizziness; dermatitis; eye, nose, throat, and respiratory irritation; coughing; difficulty concentrating; sensitivity to odors; muscle pain; and fatigue.
Sick building
syndrome
The specific causes of the symptoms are often not known but sometimes are attributed to the effects of a combination of substances or individual susceptibility to low concentrations of contaminants.
The symptoms are associated with periods of occupancy and often disappear after the worker leaves the worksite.
Cause of SBS
Inadequate ventilation
52%
Contamination from inside building 16%
Contamination from outside building 10%
Microbial contaminatio
n 5%
Contamination from building
fabric 4%
Unknown sources 13%
Thermal Comfort
Personal factors (health, psychology,
sociology & situational factors)
Air temperature
Mean radiant temperature
Air movement / velocity (see
wind chill factor)
Relative humidity (see
also perspiration)
Insulative clothing
Activity levels.
GRIHA
GRIHA – green building ‘design evaluation system’– A tool to design,
operate, evaluate and maintain resource efficient ‘healthy’ and ‘intelligent’ building
Natural Lighting
Heat
insufficient fresh outdoor air entering a ventilation system are often the direct
result of overzealous energy-saving procedures.
Acoustics
Acoustics is the interdisciplinary science that deals with the study of all mechanical waves in gases, liquids, and solids including vibration, sound, ultrasound and infrasound. A scientist who works in the field of acoustics is an acoustician while someone working in the field of acoustics technology may be called an acoustical engineer. The application of acoustics can be seen in almost all aspects of modern society with the most obvious being the audio and noise control industries.