Question: A continuous steriliser with a steam injector and a flash cooler will be employed to sterilise medium continuously. The typical bacterial spore count of

A continuous steriliser with a steam injector and a flash cooler will be employed to sterilise medium continuously. The typical bacterial spore count of the medium is about 5x102 m, which needs to be reduced to such an extent that only one organism can survive during the three months of continuous operation. The heat-resistant bacterial spores in the medium can be characterised by an Arrhenius coefficient (kdo) of 5.7x109 h and an activation energy (Ed) of 2.834x105 kJ kmol. The holding section of the steriliser will be constructed with 20m long pipe with an inner diameter of 0.078m. Steam at 600kPa is available to bring the steriliser to an operating temperature of 125C. The physical properties of this medium at 125C are Cp = 4.187 kJ/kg-K, p= 1000kg m, and u = 4 kgmh. Determine how much medium can be sterilised per hour in this operation? State all assumptions needed.

Step by Step Solution

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock

To determine the amount of medium that can be sterilized per hour in the given operation we need to consider several factors and make a few assumption... View full answer

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Students Have Also Explored These Related Physics Questions!

A study was made to determine the activation energy EA for a chemical reaction. The rate constant k was determined as a function of temperature T, and the data in the table below obtained. T, Kk, s-1...

An apple loses 4.5 kJ of heat as it cools per C drop in its temperature. The amount of heat loss from the apple per F drop in its temperature is (a) 1.25 kJ (b) 2.50 kJ (c) 5.0 kJ (d) 8.1 kJ (e) 4.1...

How much of the 100 kJ of thermal energy at 800 K can be converted to useful work? Assume the environment to be at 25C.

A piston/cylinder has ammonia at 2000 kPa, 80oC with a volume of 0.1 m3. The piston is loaded with a linear spring and outside ambient is at 20oC, shown in Fig. P8.71. The ammonia now cools down to...

Candice Sterling is a veterinarian. She has always been concerned for the pets of low-income families. These families love their pets but frequently do not have the means to provide them proper...

Santana Rey created Business Solutions on October 1, 2011. The company has been successful, and its list of customers has grown. To accommodate the growth, the accounting system is modified to set up...

Adriana Lopez created Success Systems on October 1, 2009. The company has been successful, and its list of customers has grown. To accommodate the growth, the accounting system is modified to set up...

The bargaining relationship between the employer and its workers had existed for six years. A first collective agreement was negotiated a year after the union was certified, but despite its...

High-low method, alternative regression functions, accrual accounting adjustments, ethics. Trevor Kennedy, the cost analyst at a can manufacturing plant of United Packaging, is examining the...

(Multiple Choice) Questions 13 are based on the following facts: Fred Harris began a music business in July 2012. Harris prepares monthly financial statements and uses the accrual basis of...

On February 2, for the first time in almost 15 years, the Halifax Transit system faced a strike. The largest transit system in Atlantic Canada was shut down with all 300 buses and three ferries at a...

You are analyzing the company potential for future investment where you will use the absolute valuation methodology for estimating the intrinsic value. POWER CEMENT LTD posted a revenue of 58bn in...

Find f ' ( a ) . f ( x ) = 2 x 2 3 x + 3 f ' ( a ) =

5. Joe Wright, a sole trader, extracted the following trial balance from his books at the close of business on 31st March 2006. GH GH 400,000 Sales Purchases 350,000 5,000 Sales returns Purchases...

Fill the gaps in following lines. In recent years, trade within Asia has experienced an increase in ( 1 ) trade. This is accompanied by an increase in ( 2 ) trade. Intra-industry trade in Asia mainly...

Required information [The following information applies to the questions displayed below.] Jeremy earned $101,100 in salary and $7,100 in interest income during the year. Jeremy's employer withheld...

Absolute advantage depends on opportunity costs while comparative advantage depends on the amount of inputs required for production. A question requiring a 'True/False' answer. True False

After digestion, nutrients are absorbed through the lymphatic and vascular system via the villi, found in the : Small Intestine Stomach Large Intestine Liver

A company is considering building a continuous sterilisation unit for the sterilisation of medium. In the continuous sterilisation unit the medium is heated up rapidly to a high temperature of 140C...

A viscous fluid (density = 1000 kg/m3) flows with a mean velocity of 0.4 m/s in a tubular steriliser of diameter 20 mm. It is desired that each element of fluid remain in the steriliser for at least...

A viscous fluid (density =1000kg/m3, viscosity 0.001Ns/m2 ) flows with a mean velocity of 0.7m/s in a tubular steriliser of diameter 20mm. It is desired that each element of fluid remain in the...

Question 4 A viscous fluid (density =1000kg/m3 ) flows with a mean velocity of 0.4m/s in a tubular steriliser of diameter 20mm. It is desired that each element of fluid remain in the steriliser for...

Question: How would cost-plus pricing change continuous improvement at Kenco? (10 marks) Compare and explain fully the strategic and operational implications of cost-plus pricing versus Kencos...

Question: Describe Kencos CI system; compare this to process change using traditional budgeting Abstract This case illustrates a strategy-driven costing system combining ideas from lean management...