CIBSE Guide A for Environmental design

Description

Guide A: Environmental design provides guidance on design criteria and calculation methods such as fabric performance, heating and ventilation system sizing, methods for thermal comfort evaluation and energy demand. Topics covered include: The design process Design calculations quality plan Sources of uncertainty User issues Performance assessment methods (pam) Environmental criteria for design Notation and definitions Thermal environment Modelling thermal comfort Environmental criteria Additional factors potentially affecting comfort Outdoor thermal comfort Determination of required outdoor air supply rate Visual environment Noise Vibration Determination of predicted mean vote (pmv) Measuring operative temperature External design data Notation UK near-extreme weather data UK cold weather data UK warm weather data Wet and dry bulb temperatures Worldwide weather data Solar and illuminance data Wind data Climate change Urban heat island effect Thermal properties of building structures Notation Heat losses from buildings Roofs Ground floors and basements Windows Thermal bypasses Linear thermal transmittance Non-steady-state thermal characteristics Moisture content of masonry materials Thermal conductivity and thermal transmittance testing Heat transfer at surfaces Seasonal heat losses through ground floors Application of the combined method to multiple layer structures Calculation method for admittance, decrement factor and surface factor Properties of materials Thermal properties of typical constructions Ventilation and air infiltration Ventilation and air quality Ventilating heat loss Ventilation systems Natural and mixed mode ventilation Methods for estimating air infiltration and natural ventilation Basic pressure coefficient data Summary of measured air leakage data Air infiltration development algorithm (aida) Thermal design, plant sizing and energy conservation Notation The role of standards Relationship to the design process Design calculation quality plan Thermal response Calculation methods for thermal design Heating plant sizing Cooling plant sizing Summertime temperatures in buildings Building energy demand Overview of calculation methods Equations for determination of sensible heating and cooling loads Calculation of operative and mean radiant temperatures Banded weather data Glass and glazing systems Example calculations Internal heat gains Benchmark values for internal heat gains Occupants Lighting Personal computers and office equipment Electric motors Cooking appliances Hospital and laboratory equipment Heat gain from laboratory animals Domestic appliances and equipment Rate of heat gain from restaurant/cooking equipment Moisture transfer and condensation Notation Psychrometry of water vapour in air Moisture content of materials Mechanisms of moisture movement Surface condensation and mould growth Interstitial condensation Inside and outside design conditions Condensation calculations Control of condensation Health issues Thermal discomfort and health implications Humidity Air quality and ventilation Visual environment Water quality Electromagnetic effects Noise and vibration Communities and health