Training Manual on Energy Efficiency - APO Asian Productivity ...

More documents

Recommendations

Info

<strong>Training</strong> <strong>Manual</strong> on Energy Efficiency for Small and Medium Enterprises 5.2.2 MD recording It is important to note that while maximum demand is recorded, it is not the instantaneous demand drawn, as is often misunderstood, but rather is the time-integrated demand over the duration of the recording cycle. As example, in an industry, if the draw over a recording cycle of 30 minutes is: 2500 kVA for 4 minutes 3600 kVA for 12 minutes 4100 kVA for 6 minutes 3800 kVA for 8 minutes, Figure 5-1 Maximum demand curve Figure 5-2 Time-integrated demand - 48 -
5.3 LOAD MANAGEMENT STRATEGIES 5.3.1 Rescheduling and staggering loads - 49 - Electrical Load Management the MD recorder will be computing MD for the duration of 30 minutes as: (2500 x 4) + (3600 x 12) + (4100 x 6) + (3800 x 8) = 3606.7 kVA 30 Various techniques applicable to optimize maximum demand of an industry include: • Rescheduling loads; • Staggering of motor loads; • Storage of products/in process material/process utilities like refrigeration; • Shedding of non-essential loads; • Operation of captive power generation; and • Reactive power compensation. In Figure 5-3 the left side shows the demand curve of a consumer before load shifting, and the right side shows the demand curve of a unit after load shifting (leading to kVA reduction). Figure 5-3 Load shifting 5.3.2 Storage of products in process materials and process utilities like refrigeration In many plants, studies reveal extra capacity available, for producing certain products, in process material and utilities like pumps and refrigeration, all of which consume electricity. Using these capacities during lean demand
Page 2 and 3:
The opinions expressed in this publ
Page 4 and 5:
2.5 Boiler water treatment 14 2.6 E
Page 6 and 7:
7. ENERGY EFFICIENCY IN PUMPS 64 7.
Page 8 and 9:
LIST OF TABLES 1-1 Gross calorific
Page 10 and 11: 6-1 Induction motor 56 6-2 Boosting
Page 12 and 13: FOREWORD With the rising costs of e
Page 14 and 15: Training M
Page 44 and 45: 4. ENERGY EFFICIENCY IN FURNACES 4.
Page 68 and 69: 6. ENERGY EFFICIENCY IN ELECTRIC MO
Page 76 and 77: 7. ENERGY EFFICIENCY IN PUMPS 7.1 P
Page 88 and 89: 8. ENERGY EFFICIENCY IN FANS 8.1 IN
Page 100 and 101: 9. ENERGY EFFICIENCY IN COMPRESSED
Page 110 and 111:
10. ENERGY EFFICIENCY IN REFRIGERAT
Page 112 and 113:
Training M
Page 114 and 115:
Training M
Page 116 and 117:
Training M
Page 118 and 119:
Training M
Page 120 and 121:
Training M
Page 122 and 123:
Training M
Page 124 and 125:
Training M
Page 126 and 127:
Training M
Page 128 and 129:
Training M
Page 130 and 131:
Training M
Page 132 and 133:
12. CLEAN DEVELOPMENT MECHANISM 12.
Page 134 and 135:
Training M
Page 136 and 137:
Annex S. No. Enconomic Opportunity
Page 138 and 139:
Training M
show all

Training Manual on Energy Efficiency - APO Asian Productivity ...

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?