2 CONTENTS Engineers go on climate strike; Chancellor promises 30m decarbonisation fund; sharp fall in new construction work reported 12 CIBSE news Young Engineers Awards in the UK and Australasia; shortlist for Employer of the Year Award; Ken Dale Travel Bursary winner Voices 20 Passivhaus rules 24 Eight vie for Young Engineers Award After a record number of entries, the final shortlist of outstanding young professionals 26 COVER FEATURE In the pipeline Andy Pearson speaks to the pioneers in the hydrogen sector about this potential low carbon replacement for natural gas 32 Taking counsel How collaborative engineering helped Northamptonshire County Council s offices win a CIBSE Building Performance Award 38 Emission creep Dr Peter Walsh reports on how sensors were deployed to pinpoint potential pollutants in a Birmingham office Leda s Jim Wild outlines why the energy-efficient Passivhaus methodology is gaining traction 81 Q&A Dora Ma and Ed Cremin analyse building energy use data from the London Energy Map project Current CIBSE Graduate of the Year Reanna Taylor reflects on a busy and rewarding 12 months 18 The fallacy of PDRs Julie Godefroy explains how permitted development rights have failed housing occupants 46 Completing the picture 22 Passing the baton 16 The policy clues Hywel Davies considers how recommendations on heating, cooling and energy efficiency will affect reviews of Part L and F HOTEL AND LEISURE SPECIAL Features News 7 News CIBSE JOURNAL 43 Cool sounds Energy consultant and travel bursary winner Lucy Pemble reflects on her experiences Limiting overheating and noise control must be considered in tandem, says Katherine Holden SWIMMING SENSATION Exeter City Councils new leisure centre will set new standards for Passivhaus pools GOLF RESORT TEES UP HEAT PUMP RETROFIT CPD: WHOLESOME COLD WATER PRESSURE BOOSTING OCTOBER 2019 | www.cibsejournal.com | Sponsored by Read our Hotel and Leisure Special with this issue or online at www.cibsejournal.com Technical SPECIAL FEATURES Pipework, pumps and valves 53 Pipework and pump news A round-up of pipework project and product news 54 Fluid assets 22 Experts discuss current issues around pipework specification at a CIBSE/Geberit roundtable 61 Lifetime award Armstrong Fluid Technology s Tango Parallel pumping solution s winning performance 65 Bucking the cistern The innovative, energy-saving Encore system using air condensate for the toilet flush 69 Hard choice Why carbon steel can be better than stainless steel in some mixed-metal HVAC applications 4 October 2019 www.cibsejournal.com CIBSE Oct19 pp04-05 Contents.indd 4 20/09/2019 16:44