TECHNICAL TRAINING IN DRYING WITH BIOMASS BASED DRYERS MAINTAINING DATA

Size: px

Start display at page:

Download "TECHNICAL TRAINING IN DRYING WITH BIOMASS BASED DRYERS MAINTAINING DATA"

Neil Underwood
5 years ago
Views:

1 TECHNICAL TRAINING IN DRYING WITH BIOMASS BASED DRYERS MAINTAINING DATA Technology Informatics Design Endeavour (TIDE) #19, 9 th Cross, Malleswaram, Bamgalore Phone: ; tide@vsnl.com

2 Maintaining data on drying Why must data be maintained? Data helps to obtain information about the activity. Understanding the data would help to identify the inefficiencies in ion and whether any improvements in drying practices are possible. If they are identified, they can be rectified and the cost of ion brought down. The data can also help understand the costs involved in drying and to fix a price for sale of the dried, to make a profit. Data is useless if not analysed and accurate analysis is only possible if correct data is maintained The data that have to be maintained are explained below. The format to maintain these data is also suggested: 1. Stock register: This is the register in which the details of all materials being used in the drying of a are recorded. This would include the a. fresh material procured for drying b. processing material c. dried d. packaging material, e. fuel etc. At any point of time, the quantity and value available of any material would be known, if the stock register is maintained correctly. Maintaining the stock registers helps to plan operations. Stock registers should be maintained separately for each material. Eg there should be one section for fresh material, one for dried, one for each of the processing material and another for fuel and a separate one for packing material. A sample of a stock register with an example is given below. Stock register of fresh material Date Quantity of material procured Quantity used Balance in stock (kg/units) (kgs) (B) 12/12/ /12/ ( ) =25 Data for processes: Data for the following processes should be maintained. 2. Preparation of Product- weight of fresh in a batch and the weight of the batch after cleaning have to be recorded. The format that can be used is:

3 Date fresh (A) Weight after preparation of (washing, peeling/trimming) (B) Difference in weight (A-B) 3. Pre treatment: This records The weight of pre treatment material being used Duration for pre treatment This helps identify if any problems noticed in the are due to deviations from prescribed pre treatment protocols. The format that can be used to maintain this data is: Date Quantity of pre-treatment Duration of pre-treatment 4. Drying: This records: dried : This data is required to calculate the yield. The weight can also indicate whether the has been dried too much. If the yield works out to be much lower than the normal yield, it is an indication that the has dried to a very low moisture level. Temperature: Temperature has to be checked and recorded every hour so that the correct temperature is maintained throughout the drying process. Time: The time when the fresh was loaded into the dryer and the time that the drying was completed should be recorded. This would help to calculate the time taken for drying. This is important to work out the time required to deliver while negotiating an order and also to plan a schedule for delivering an order that has been placed. Fuel usage: The quantity of fuel used to dry one batch in a dryer has to be noted. This is required to understand the efficiency of the dryer as well as to calculate the expenses of drying The format to maintain data on drying is as below: Date A fresh B Of loading in the dryer C Time Of unloading dried D Time taken for drying (D-C) Weight of dried E Yield (%) E x100 B fuel used

4 Calculation of Yield: A very important data, which evolves out of the data collected in the various processes, is the yield. This will help you to determine the profitability of the activity. The formula for calculating yield is: Weight after drying X 100. fresh The yield will be in percentage. The yield of a few s is given in Table 4 below: Table 4: Yield of a few s after drying Product Yield (%) Low fat sea fish 20 Prawn 20 Areca 33 Coconut 100 coconuts yield 12 kg copra (dried coconut) Fruits Banana 16 Jackfruit 20 Pineapple 15 Vegetables Ladies fingers 10 Onions 12 Potatoes 15 Tomatoes (should be 5 fleshy and not juicy) Ginger 20 Garlic 30

TECHNICAL TRAINING IN DRYING WITH BIOMASS BASED DRYERS INTRODUCTION TO DRYING AND BIOMASS DRYERS

TECHNICAL TRAINING IN DRYING WITH BIOMASS BASED DRYERS INTRODUCTION TO DRYING AND BIOMASS DRYERS Technology Informatics Design Endeavour (TIDE) #19, 9 th Cross, Malleswaram, Bamgalore 560 003 Phone: 080-23315656;