The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 26, 1999
Filed:
Sep. 24, 1997
Clifford C Federspiel, Shorewood, WI (US);
Johnson Service Company, Milwaukee, WI (US);
Abstract
The present invention provides a method of modeling multi zone ventilation systems. The method integrates flow rate standards with the concept of age of air. The method serves as the basis for several different ventilation effectiveness calculation methods, and for translating outdoor air requirements to age of air requirements, and vice versa. The method also serves as the basis for the development of new ventilation strategies for multi zone systems that minimizes the amount of outdoor air required to maintain the age of the zone air at or below a maximum acceptable level. Preferably, the ventilation control strategy of the present invention allows age of air in each of a plurality of zones in a multi-zone system to conform to ASHRAE Standard 62 requirements.