Answer:
≈ 53 seconds
Explanation:
<u>calculate Time required for the product to begin the falling-rate drying period</u>
Initial moisture content = 0.77 kg water /kg of product
= 3.35 kg water /kg solids
Critical moisture content = 0.3 kg water / kg product
= 0.43 kg water / kg solids
∴ amount of water to be removed = 3.35 - 0.43 = 2.95kg water /kg solids
next: calculate surface are a of product during drying
= (0.05 * 0.05 ) * 6
= 0.015 m^3
Drying rate = 0.1 kg water m^2.s^-1 * 0.015 m^3 = 1.5 * 10^-3 kg water s^-1
<em>applying product density</em>
initial product mass = 0.11875 * 0.23 = 0.0273kg solid
hence total amount of water to removed = 2.92 * 0.0273 = 0.07972 kg
therefore : <u>T</u><em>ime required for the product to begin the falling-rate drying period</em>
= 0.07972 / 1.5 * 10^-3
= 53 seconds
Answer:
poka-yoke
Explanation:
The term 'poka-yoke' derives its meaning from Japanese language. In Japanese 'poke' means "mistakes" and 'yokeru' means " to avoid ". This ' poka yoke' means to avoid mistakes.
In any process, it is a mechanism that that helps an operator of any equipment to avoid any kind of mistakes while working. It is to prevent the defects in the products by correcting, addressing and preventing any human errors.
It is failsafing which eliminates any kind of potential errors in a process.
Answer:
mainly used to combine two tables based on a specified common field between them. If we talk in terms of Relational algebra, it is the cartesian product of two tables followed by the selection operation. Thus, we can execute the product and selection process on two tables using a single join statement. We can use either 'on' or 'using' clause in MySQL to apply predicates to the join queries.
A Join can be broadly divided into two types:
Inner Join
Outer Join
Inner Join is a join that can be used to return all the values that have matching values in both the tables. Inner Join can be depicted using the below diagram.
The inner join can be further divided into the following types:
Equi Join
Natural Join
Now let us learn about these inner joins one-by-one.