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Table 2 Energy and exergy efficiency obtained in different previous studies for heat recovery system

From: The role of specific energy consumption in a heat recovery system for cassava starch production using an integrated agro-industrial system

Components

Energy consumption (kJ/s)

Exergy destruction (kJ/s)

Energy efficiency (%)

Exergy efficiency (%)

Exergy loss (%)

Present work

[1, 2, 5, 6]

Present work

[3, 4]

Present work

[1,2,3,4]

Present work

[1, 3]

Present work

[1, 2]

Economizer

3.06

4.02

86.722

–

57.38

45.6

33.65

–

66.35

–

Heat exchanger tank

154.32

116.66

2,484,234

–

46.6

45.3

69.0

–

31

–

Combustor

10,230.9

15, 417.8

2,171.9

6660

100

–

65.4

–

34.6

28.46

Heat exchanger

17,976.2

3853

3,657.8

3660

54.3

72.13

41.2

45.18

58.8

46.72

Boiler

28,207.1

460.83

5,829.7

6523.3

79.9

80.8–93.73

30.5

25

69.5

75–76.75

  1. Refs: [1]: [78]; [2]:[79, 80]; [3]: [74]; [4]: [57]; [5]: [46]; [6]:[28]
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Energy, Sustainability and Society

ISSN: 2192-0567

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