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The CLTD/CLF/SCL (cooling load temperature difference/cooling load factor/solar cooling load factor) cooling load calculation method was first introduced in the 1979 ASHRAE Cooling and Heating Load Manual (GRP-158) [1] The CLTD/CLF/SCL Method is regarded as a reasonably accurate approximation of the total heat gains through a building envelope ...
The proposed energy cost budget must be less than or equal to the baseline energy cost budget to achieve compliance. The performance approach is also used to demonstrate design energy efficiency, often expressed as percent better than ASHRAE Standard 90.1. Building designs will stated their performance as "40% better than ASHRAE 90.1-2007" or ...
The cooling load [3] is calculated to select HVAC equipment that has the appropriate cooling capacity to remove heat from the zone. A zone is typically defined as an area with similar heat gains, similar temperature and humidity control requirements, or an enclosed space within a building with the purpose to monitor and control the zone's temperature and humidity with a single sensor e.g ...
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A pivot table in BOEMax, a Basis of Estimate software package. To create a BOE companies, throughout the past few decades, have used spreadsheet programs and skilled cost analysts to enter thousands of lines of data and create complex algorithms to calculate the costs. These positions require a high level of skill to ensure accuracy and ...
R p = ventilation rate per person (cubic feet per minute (CFM) per person or cubic meters per minute per person) ACPH = Air changes per hour; D = Occupant density (square feet per occupant or square meters per occupant) h = Ceiling height (feet or meters) One cubic meter per minute = 16.67 liter/second
For example, a space requiring 5663 standard litre per minute (SLPM) (200 standard cubic feet per minute (SCFM)) of ventilation air and served with supply air that is 40% ventilation air, will require a box minimum setting of 14158 SLPM (500 SCFM) (i.e. 200/0.4) rather than the conventional practice of 5663 SLPM (200 SCFM). When the box ...
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