Steam question, chemistry, Microeconomics

Processors of aseptically packaged juice-based beverages must adequately heat their product before packaging it in order to be sure that they have “killed” the microorganisms which may be present in the unprocessed beverage. (9 marks total)
A juice processing operation uses steam to heat the fruit juice up to a temperature of 96°C prior to packaging it in drink boxes. They need to heat 3,250 kg of apple juice (10.5% solids) from an initial storage temperature of 39°F to its heat treatment temperature. How much saturated steam at 617.8 kPa would be needed for this task (to the nearest kg)? In this case, the condensate is to be discharged from the process without any further cooling to recover any of its heat and is returned to the “steam plant” where it is reheated and turned back into steam.

How much steam is required per batch of product (see description in Part a) if the condensate is discharged from the process after being cooled to 75°C to use some of its heat in the process? Express your answer to the nearest kg.


How much steam is saved by recovering some of the heat in the condensate (i.e., the difference between the process as outlined in part a as compared to the process in part b). Express your answer to the nearest of kg of steam.

Posted Date: 2/5/2012 10:32:32 PM | Location : United States







Related Discussions:- Steam question, chemistry, Assignment Help, Ask Question on Steam question, chemistry, Get Answer, Expert's Help, Steam question, chemistry Discussions

Write discussion on Steam question, chemistry
Your posts are moderated
Related Questions
The raspberry growing industry is a perfectly competitive industry. The firms in the industry have a U-shaped LAC, minimum average cost is $8 and the minimum efficient scale is 4 u


Allocative efficiency criteria are satisfied by the competitive model.  Because P = MC, in each market in the economy there is no over- or under- allocation of resources in this ec

Chapter 13 / PERFECT COMPETITION and THE SUPPLY CURVE 1. Joe Brown’s dairy operates in a perfectly competitive marketplace. Joe’s machinery costs $500 per day and is the only fixe

Demand Function The function capturing the dependent relationship between the price people are willing to pay for products or service and other factors related to that product

What is micro static analysis?

Answer in true or false 1.  "Improvements in environmental quality of a recreational site will, all other things being equal, increase consumer surplus of individuals that visit

ENUMERATION OF WORKERS: Now, let us discuss about the sources of data in India on workers. In India, two main organisations which generate and compile data on workers are the

Question 1 Identify the basic postulates of economics Question 2 Discuss the role of price mechanism Question 3 Explain the shape and application of Engel curve