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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 ...
Medium-wave (MWIR) and carbon infrared heaters operate at filament temperatures of around 1,000 °C (1,830 °F). They reach maximum power densities of up to 60 kW/m 2 (5.6 kW/sq ft) (medium-wave) and 150 kW/m 2 (14 kW/sq ft) (carbon). Far infrared emitters (FIR) are typically used in the so-called low-temperature far infrared saunas. These ...
This space heater is designed to produce more heat and use less energy than a standard space heater. The manufacturer notes that most space heaters produce 155°F at 2.2 meters per second, while ...
A large amount of heat transfer area can be provided in each unit volume of the rotary regenerator, compared to a shell-and-tube heat exchanger - up to 1000 square feet of surface can be contained in each cubic foot of regenerator matrix, compared to about 30 square feet in each cubic foot of a shell-and-tube exchanger. [4]
An air source heat pump (ASHP) is a heat pump that can absorb heat from air outside a building and release it inside; it uses the same vapor-compression refrigeration process and much the same equipment as an air conditioner, but in the opposite direction. ASHPs are the most common type of heat pump and, usually being smaller, tend to be used ...
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