SPONSOR CPD PROGRAMME | SPECIFIC FAN POWER Module 181 June 2021 Name (please print)........................................................................................ Job title ............................................................................................................... Organisation ..................................................................................................... 1. In the quoted building energy efficiency survey, what percentage of electrical energy was estimated as being consumed by fans in 2014-15 in non-domestic stock? Address ............................................................................................................. ............................................................................................................................... A More than 5% B More than 6% ............................................................................................................................... C More than 7% Postcode ........................................................................................................... D More than 8% E More than 9% 2. At the outlet of a scroll-housed centrifugal fan, what is the proportion of the maximum regain of velocity pressure to static pressure after 0.50 of the recommended straight length? A 25% B 50% C 80% D 90% E 100% 3. What would the SFP be for a system where the total electrical power supplied is 1.5kW for an air volume flowrate of 0.75m3s-1 and a total system pressure drop of 0.6 kPa? A 0.6WL-1s-1 B 0.75WL-1s-1 C 1.5WL-1s-1 D 2WL-1s-1 E 2.5WL-1s-1 Email ................................................................................................................... Are you a member of CIBSE? If so, please state your membership number: .................................................................................. The CIBSE Journal CPD Programme By participating in this CPD module, you consent to sharing your details with Swegon. Swegon may contact you via email and/or telephone with further information and technical insight on its services. You have the right to opt out from such communications at any time. I understand that I will receive marketing communications from Swegon after completing this module (please tick here): By entering your details above, you agree that CIBSE may contact you with information about CPD and other training or professional development programmes, and about membership of CIBSE, if you are not a member. Go to www.cibsejournal.com/cpd to complete this questionnaire online. used to validate your CPD records. Alternatively, to: N Hurley, CIBSE, 222 Balham High Road, London, SW12 9BS. Further reading: Eurovent to meet the restrictions on energy consumption? CIBSE TM42: Fan Application Guide (2006) provides detailed information on the assessment and installation of HVAC fans. AIVC Technical Note 65, gives detailed commentary and analysis of this application of fans for HVAC. Swegon Air Academy AIR Chapter 25 Fans and SFP by Gunnar Berg inspired and provided content for this CPD article. A 25% References: B 30% 1 C 35% D 40% E 45% 4. What growth in the physical size of AHUs was reported by 5. If a system employs a HEPA filter, what additional allowance is made to that in the table of limiting SFPs accessed 13 May 2021. 2 Schild, PG et al, , AIVC 2009. 3 , Eurovent 2018. 4 Berg, G, AIR Chapter 25 Fans and SFP, Swegon Air Academy, 2014. 5 : 2013 Edition, NBS 2014. 6 , Jorma Railio and Pekka Mkinen, Clima 2007. for England? A 0.2WL-1s-1 B 0.4WL-1s-1 C 0.6WL-1s-1 D 0.8WL-1s-1 E 1WL-1s-1 50 June 2021 www.cibsejournal.com CIBSE June 21 pp47-50 CPD Supp 181.indd 50 21/05/2021 16:27