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Indoor climate guide Technical Indoor Climate Guide - - Draft TECHNICAL GUIDE Foreword The aim of this Technical Guide is to serve as a reference work that is useful to both practising engineers and during di ?erent training courses The Technical Guide de

Technical Indoor Climate Guide - - Draft TECHNICAL GUIDE Foreword The aim of this Technical Guide is to serve as a reference work that is useful to both practising engineers and during di ?erent training courses The Technical Guide deals with technical issues related to ventilation air handling indoor climate and energy housekeeping but does not claim to be comprehensive It is fully possible to build poorly working systems with the best products available on the market Consequently it is extremely important to have knowledge of what is required to build well-functioning systems with maximum possible comfort and the lowest possible energy consumption A client rarely has the necessary skills to assess and predict the consequences of a speci ?c decision It is therefore the responsibility of the consultant to present the technical and ?nancial consequences of decisions made during a project The client of course does not want to pay more than necessary for a particular action or solution And here lies a danger ?? you get what you pay for Today the most common procurement methods focus primarily on the price at the time of procurement We tend to forget the very purpose of the air handling installation ?? to provide a good indoor climate that creates ideal conditions for working and residing in the served premises As there is also always considerable focus on realising as low energy consumption as possible the likelihood of disregarding the requirement of good indoor climate increases One condition for being able to achieve a good indoor climate without using excessive energy is to have an understanding of the complete picture This Technical Guide aims to provide essential basic information and knowledge about how the relationship appears Included at the end of the Technical Guide are de ?nitions designations conversion factors formulas thermal data for air and water as well as further reading tips publications which in neutral terms describe matters that may be useful to know from a designer installer or user perspective Laws standards and regulations may di ?er in di ?erent countries and it should be noted that this Technical Guide in many cases refers to Swedish standards and regulations It should also be noted that standards and regulations change with time A large number of industry experts have contributed with content and have reviewed and proofread the guide but Swegon assumes no liability or responsibility for any errors Swegon AB www swegon com TECHNICAL GUIDE Content Foreword Purpose of the climate installation Why ventilation Why a good indoor climate From requirement to technical solution Indoor climate requirements Air quality Room air air quality Air ow air quality Air velocity Thermal indoor climate Heat transfer Radiation Convection Evaporation evaporative release Temperature Clothing Operative temperature Air ow excess heat Sound Acoustics Energy requirements The lifecycle of a building Demand-controlled ventilation Environment classes Indoor climate products Chillers and heat pumps Air handling units Heat recovery in air handling units Air di ?users Waterborne indoor climate products Acoustic products Flow control products