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Commissioning required for a CHP?
NC-2009 EAp1:Fundamental Commissioning of Building Energy Systemsposted by André Harms on
One of our factory projects is planning on installing a CHP (combined heat and power) plant, with natural gas as the fuel source. Does this system require commissioning?
Insulation of Piping Cast into Concrete
NC-2009 EAp2:Minimum Energy Performanceposted by André Harms on
We are working on a project where a significant amount of the domestic hot water ring feed piping will be cast into the concrete walls, and the designer is querying if these pipes will need to be i
Car Park Ventilation Fan Energy Savings
NC-2009 EAc1:Optimize Energy Performanceposted by Chilufya Lombe on
Hi, on a recent project we were requested to provide evidence that 5 buildings built within the last three years did not have carbon monoxide sensors installed in the basement car parks in order to
Occupancy sensors: No override switch but with task lighting
NC-2009 IEQc6.1:Controllability of Systems—Lightingposted by André Harms on
Hi, There are several spaces in a project I'm working on that have been designed with an occupancy sensor without an override switch but each individual work station does have controllable (on/off
Motor efficiency in 50Hz countries
NC-v4 EAp2:Minimum energy performanceposted by André Harms on
In response to the ASHRAE 90.1:2007 mandatory requirements for the efficiency of 60Hz motors, some had used the European IE2 standard for 50Hz motors and demonstrated equivalency.
Car wash bay
NC-2009 WEp1:Water Use Reduction—20% Reductionposted by Marni Punt on
Hi, I am working on an office building and the team is considering to include a car wash bay. Would I be able to classify this as process water and exclude it from the WEp1 calculation?
Natural Ventilation
CI-2009 EAc1.3:Optimize Energy Performance—HVACposted by Chilufya Lombe on
Good day, we have a project that is naturally ventilated. ASHRAE 90.1 2007 states that the energy cost budget method cannot be used for designs with no mechanical systems.
Cold rooms
NC-2009 IEQp1:Minimum IAQ Performanceposted by Jutta Berns on
Good morning, We have a project that has two cold rooms at -17 and 0 degrees Fahrenheit. These rooms are temporary storage locations of perishable product.
Engineered natural ventilation system
NC-2009 IEQp1:Minimum IAQ Performanceposted by Jutta Berns on
Hi all We have three Warehouse's that use 'turbo ventilators' (wind driven extraction fans) and not a pure mechanical system.
Public Restrooms Definition (ASHRAE 90.1)
NC-2009 EAp2:Minimum Energy Performanceposted by André Harms on
We are busy assessing whether or not the "Public lavatories have outlet temperature controls that limit the discharge temperature to 110°F" ASHRAE 90.1 Mandatory requirement.