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Wrightsoft is a software development firm for heating, ventilation, and air conditioning . Established in 1985, [1] Wrightsoft has served residential, commercial, and educational markets by providing HVAC design, specification, and sales software. [2] Wrightsoft is headquartered in Lexington, Massachusetts, USA.
This mechanism is found very commonly in everyday life, including central heating and air conditioning and in many other machines. Forced convection is often encountered by engineers designing or analyzing heat exchangers, pipe flow, and flow over a plate at a different temperature than the stream (the case of a shuttle wing during re-entry, for example).
Tridium is the developer of Niagara Framework. The Niagara Framework is a universal software infrastructure that allows building controls integrators, HVAC and mechanical contractors to build custom, web-enabled applications for accessing, automating and controlling smart devices real-time via local network or over the Internet. [6] [7]
KMC Controls offers controllers and software in its KMDigital line using a proprietary protocol as well as a BACnet line with an open systems protocol. [25] The BACnet communication protocol, developed by the American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE), became an industry standard in the 2000s because of ...
A "flat rate" (more accurately known as fixed rate) for electricity is a fixed price per unit , not a fixed price per month, and thus different from that for other services. An electric utility that charges a flat rate for electricity does not charge different rates based upon the demand that the customer places on the system.
Standard HVAC system design uses fixed airflow rates to calculate the outdoor air (OA) required in a space. These airflow rates are determined by mechanical code and vary based on expected occupancy and space use. [2] This process of supplying fixed airflow to a space ensures that sufficient OA is present in that space when it is occupied.
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However, in many cases, advertisers can negotiate lower rates, especially when committing to a long-term or high-value contract. The flat-rate model is particularly common on comparison shopping engines, which typically publish rate cards. However, these rates are sometimes minimal, and advertisers can pay more for greater visibility.
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