Estimating Energy Requirements

Energy requirements can be estimated once pressure levels have been established and loads have been estimated. 

Conversion ratios for converting actual load to equivalent dry afr, as dateribad in the HEI standards. 1956 

Steam jets with intercondensers require cooling water. Water requirements can be estimated as below  

Water rate Direct Contact Condensers Once-Through Water 0.7 1 2 3 

Cooling water costs are usually quite small compared to steam costs. The table above reflects the relative costs and their effect upon ejector efficiency. 

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Each equation for estimating energy requirements has advantages and disadvantages, but none has been shown to be superior to another. The most popular is the Harris-Benedict equation. 

The most accurate clinical tool for estimating energy requirements is indirect calorimetry or metabolic gas monitoring. This noninvasive proce-... 

Understand the meaning of BMR, and calculate this for individuals on the basis of weight and surface area be able to estimate energy requirements for people leading different lifestyles. 

Vinylmethylenecyclopropane rearranges thermally to 3-methylene-cyclopentene. In the gas phase, the is 26.0 kcal/mol, which is close to the estimated energy required for rupture of the C(2)—C(3) bond. Two possible mechanisms for this rearrangement are ... 

Box 23.1 Estimating Energy Requirements in the Normal Population Compared to Patients with FAOD... 

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