Technical
Endnotes
i Reed , N . G . 2010 . The history of ultraviolet germicidal irradiation for air disinfection . Public Health Reports 125:15-27
ii Ashrae Applications Handbook – 2019 , Chapter 62 . iii Brickner Brickner , P . W ., R . L . Vincent , M . First , E . Nardell , M . Murray , and W . Kaufman . 2003 . The application of ultraviolet germicidal irradiation to control transmission of airborne disease : Bioterrorism countermeasure . Public Health Report 118 ( 2 ): 99-114 .; CDC 2002 , 2005 ; GSA 2010 ; McDeVitt et al . 2008 ; Rudnick , S . N ., M . W . First , R . L . Vincent , and P . W . Brickner . 2009 . In-place testing of in-duct ultraviolet germicidal irradiation . HVAC & R Research ( now Science and Technology for the Built Environment ) 15 ( 3 ). iv Downes A , Blunt TP . The influence of light upon the development of bacteria . Nature . 1877 ; 16 ( 402 ): 218 . v Downes A , Blunt TP . Research on the effect of light upon bacteria and other organisms . Proceedings Royal Society London . 1877 ; 26:488-500 . vi Grant KC . Sterilization of polluted water by ultra-violet rays . Engineering News . 1910 ; 64 ( 275 ). vii Wells WF , Wells MW , Wilder TS . Viability of B . coli exposed to ultra-violet radiation in air . Science . 1935 ; 82:280-1 . viii Ashrae Applications Handbook – 2019 , Chapter 62 . ix Martin S et al . ASHRAE Journal Aug 2008 p 34 x Rudnick et al . 2012 ; Vincent et al . 2013 ; Zhang et al . 2012 xi Gilkeson and Noakes 2013 ; Xu et al . 2013 ; Zhu et al . 2013 xii Ashrae Applications Handbook – 2019 , Chapter 62 . xiii Ashrae Applications Handbook – 2019 , Chapter 62 . xiv Coker et al . 2001 xv First , M . W ., F . M . Rudnick , K . Banahan , R . L . Vincent , and P . W . Brickner . 2007a . Fundamental factors affecting upper-room ultraviolet germicidal irradiation — Part 1 : Experimental . Journal of Environmental Health 4:1-11 ., 2007b ; Miller et al . 2002 ; Xu et al . 2003 & First , M . W ., K . Banahan , and T . S . Dumyahn . 2007b . Performance of ultraviolet light germicidal irradiation lamps and luminaires in long-term service . LEUKOS 3:181-188 . xvi Ka et al . 2004 ; Ko et al . 2000 ; Rudnick , S . 2007 . Fundamental factors affecting upper-room germicidal irradiation — Part 2 : Predicting effectiveness . Journal of Occupational and Environmental Hygiene 4 ( 5 ): 352-362 . xvii First , M . W ., F . M . Rudnick , K . Banahan , R . L . Vincent , and P . W . Brickner . 2007a . Fundamental factors affecting upper-room ultraviolet germicidal irradiation — Part 1 : Experimental . Journal of Environmental Health 4:1-11 ., 2007b ; Miller et al . 2002 ; Xu et al . 2003 & First , M . W ., K . Banahan , and T . S . Dumyahn . 2007b . Performance of ultraviolet light germicidal irradiation lamps and luminaires in long-term service . LEUKOS 3:181-188 .; Miller et al . 2002 ; Riley and Permutt 1971 ; Riley et al . 1971 xviii Mphaphlele M , Dharmadhikari AS , Jensen PA , Rudnick SN , van Reenen TH , Pagano MA , Leuschner W , Sears TA , Milonova SP , van der Walt M , et al . Institutional tuberculosis transmission . Controlled trial of upper room ultraviolet air disinfection : A basis for new dosing guidelines . Amer J Respir Crit Care Med . 2015 ; 192 ( 4 ): 477-84 . xix Miller SL . Upper room germicidal ultraviolet systems for air disinfection are ready for wide implementation ( editorial ). Am J Respir Crit Care
Med . 2015 ; 192 ( 4 ): 407-9 . xx Ashrae Applications Handbook – 2019 , Chapter 62 . xxi Ashrae Applications Handbook – 2019 , Chapter 62 . xxii Bahnfleth and Firrantello 2017 ; Firrantello and Bahnfleth 2017a ) and Singapore ( Wang et al . 2016a , 2016b xxiii Ashrae Applications Handbook – 2019 , Chapter 62 . xxiv Ashrae Position Document on Filtration and Air Cleaning , 2021 . P 10 . xxv Ashrae In-Room Air Cleaner Guidance for Reducing Covid 19 in Air in Your Space / Room , Jan 21 , 2021 xxvi https :// www . ies . org / fires / designing-a-UVC-germicidal-system /? utm _ source = IES & utm _ medium = Email & utm _ campaign = Client % 20Updates &_ zs = sEENX &_ zl = 9iC82
Products
COMPRESSORS FROM DANFOSS
Danfoss MLZ scroll compressors are dedicated to commercial and light commercial refrigeration applications with refrigerants R134a , R404A / R507A , R407A / F . Both brazed and rotolock connections are available for most of the compressors .
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RACA Journal I November 2021 www . hvacronline . co . za