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Contents


NEWS 7 News


Engineers tackle overheating; Barker sets domestic RHI tariff; CIBSE Journal readership survey now online; industry gets to grips with resource effi ciency; DECs need fi xing not replacing


12 CIBSE News


Institution launches Building Performance Awards 2014; visit to historic Paternoster lift; fi nd out how the benevolent fund is helping members


OPINION 16 Letters


BIM and the building services engineer; zero carbon logic behind the code; the risks of nuclear delay


17 Feedback


Industry responds to CIBSE president George Adams’ fi rst blog


18 Don’t blame heat pumps The real problem is the way buildings are designed and procured in the UK


20 Regulations


What the Energy Savings Opportunity Scheme is really all about


Features


22 Are you sitting comfortably? A clear and comprehensive defi nition of overheating is fi nally here, explained in full by CIBSE’s TM52 guidance


26 Beyond the fridge


Supermarket giant Sainsbury’s has set itself the challenging target of slashing its carbon emissions by 30% in seven years. But can it cut the mustard?


32 Foiling the great escape


It’s vital that clients’essential focus moves from cost cutting to long-term performance when installing district heating systems


36 All hands to the pump


When an innovative ground-source energy system failed to live up to expectations, the original project team stepped up to the plate


‘Because district heating systems are so large, the effects of failing to design an effi cient system are magnifi ed’ Page 32


www.cibsejournal.com


42 Making hospitals feel better ASHRAE’s HVAC Design Manual for Hospitals and clinics gives new advice on heating and ventilating clinical spaces


58 Waste under the knife Barts Health NHS Trust reveals how it has slashed its energy bill by £105,000 in two hospitals by persuading workers to close doors and turn off lights and equipment


August 2013 CIBSE Journal 3 22


LEARNING 45 CPD


Biomass for commercial building heating systems


CLASSIFIED 50 Products


A round-up of gadgets and services for the industry


55 Directory A guide to suppliers JOBS


56 Appointments Jobs at jobs.cibsejournal.com


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