%0 Journal Article
%A Iain S Walker
%A David J Wilson
%A Max H Sherman
%B Energy and Buildings
%D 1998
%G eng
%P 293-299
%T A Comparison of the Power Law to Quadratic  Formulations for Air Infiltration Calculations
%V 27
%1 <p>2.3</p>
%2 LBNL-41447
%X <p>Although the power law has been broadly accepted in measurement and air infiltration standards, and in many air  infiltration calculation methods, the assumption that the power law is true over the range of pressures that a  building envelope experiences has not been well documented.  In this paper, we examine the validity of the  power law through theoretical analysis, laboratory measurements of crack flow and detailed field tests of  building envelopes.  The results of the theoretical considerations, and field and laboratory measurements indicate  that the power law is valid for low pressure building envelope leakage.</p>