SPONSOR CPD PROGRAMME | HEATING SYSTEMS Module 182 July 2021 1. If a condensing boiler had water returning at 30C, what is the maximum boiler gross efficiency that could Name (please print)........................................................................................ Job title ............................................................................................................... Organisation ..................................................................................................... Address ............................................................................................................. be expected? ............................................................................................................................... A 65% ............................................................................................................................... B 75% C 85% D 95% Email ................................................................................................................... E 105% Are you a member of CIBSE? If so, please state your 2. Which of these is least likely to result from excessively Postcode ........................................................................................................... membership number: .................................................................................. reducing water flow through a boiler? A Erosion of components The CIBSE Journal CPD Programme B Kettling C Overheating D Potential heat-exchanger failure E Reduced pressure drop By participating in this CPD module, you consent to sharing your details with Hamworthy Heating. Hamworthy Heating 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 Hamworthy Heating 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. 3. If 5kg.s- water are entering a boiler at 30C and leaving at 50C, how much power is being added to the water by the boiler? A 20kW B 42kW C 100kW D 142kW E 420kW 4. What is the approximate lowest temperature that used to validate your CPD records. Alternatively, to: N Hurley, CIBSE, 222 Balham High Road, London, SW12 9BS. Further reading: For details of control of boiler systems, see CIBSE Guide H. CIBSE Guide B1 considers the application of boilers into heating systems. CIBSE AM14 includes extensive discussion on primary and secondary circuits. will prevent condensation in flue gas and reduce References: opportunities for corrosion? 1 A 46C 2 CIBSE AM14 - Non-domestic hot-water heating systems, CIBSE 2010. B 51C 4 Struck, T, C 56C D 61C E 66C CIBSE Guide B1, Heating, CIBSE 2016. 3 Chapter 10, CIBSE 2012. systems, bit.ly/CJJul21CPD accessed 6 June 2021. 5 Teekaram, A et al, BSRIA 2002. 5. What was the term used to describe the avoidance of water being circulated through the heat exchangers of inactive boilers? A Back-end protection B Corrosion protection C Flow prevention D Overrun protection E Standing loss prevention 60 July 2021 www.cibsejournal.com CIBSE July 21 pp57-60 CPD 182.indd 60 25/06/2021 17:04