Designed energy consumption

Table 9.13 Designed energy consumption of ammonia produced by various raw materials (in liquid ammonia per tons)...

It can be seen from Table 9.13 that the designed energy consumption of synthetic ammonia production is changed with the difference in the raw materials, gasification pressure and plant scale. 

Increased heat utilization does not always mean a trade-off, and many studies have shown a reduction in energy consumption as well as capital cost which in itself is a remarkable recommendation for a systematic approach to network design. 

By-products include propylene dibromide, bis-(bromopropyl) ether, propylene glycol, and propionic acid. Bromide losses are to the brominated organics and bromate formation. Current efficiency is a function of ceU design and losses to bromate. Energy consumption decreases with an increase in electrolyte concentration and a decrease in current density. Space—time yield increases with current density. See Table 5 for performance data (see... 

Pressure Drop. Baffling must be designed to keep the pressure drop as low as possible. The higher the pressure drop the higher the energy consumption and the harder the... 

Increased awareness, and therefore improved selection, of new energy-efficient systems in ventilation design, also leading to reduced energy consumption... 

A characteristic of many industrial halls is that zones of occupancy take up only a small portion of the room volume and height. In addition, the flows are normally buoyancy dominated. This results in a vertical temperature stratification that can be utilized for room air conditioning design in order to achieve effective climatization along with low energy consumption. 

To give the designer some advice, many recommendations exist in literature. Some general recommendations can be found in prEN 13779 for designing the air distribution system for low energy consumption. These include giving a certain target level for power consumption [the so-called SEP class. SEP means specific fan power, the ratio between the input power of fan mo tors and the total airflow, in W/(m s" )]. 

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