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Table 1 Comparison table

From: Comparative study between a single unit system and a two-unit cold standby system with varying demand

Figure no.

Fixed parameter

Comparison with respect to

Which model is better (according to different situations)

Model 1 is better if

Model 2 is better if

Both the models are equally good

4

γ1 = 0.008/hr, γ2 = 0.235/hr, γ3 = 0.353/hr, γ4 = 0.4213/hr, α = 0.05/hr, β1 = 0.002/hr, p1 = 0.665, p2 = 0.335, C2 = INR 500, C1 = INR 700, C3 = INR 400, ICA = INR 500, λ = 0.003/hr

Availability (AD) when d ≥ p

λ > 0.3903

λ < 0.3903

λ = 0.3903

5

Profit

C4 = 100

C0 < 728.173

C0 > 728.173

C0 = 728.173

C4 = 600

C0 < 574.291

C0 > 574.291

C0 = 574.291

C4 = 1100

C0 < 352.178

C0 > 352.178

C0 = 352.178

6

λ = 0.003/hr, α = 0.05/hr, γ1 = 0.008/hr, γ2 = 0.23/hr, γ3 = 0.353/hr, γ4 = 0.4213/hr, β1 = 0.002/hr, p1 = 0.665, p2 = 0.335, C0 = INR 7000, C1 = INR 700, C4 = INR 400, ICA = INR 500

Profit

C3 = 200

C2 > 574.248

C2 < 574.248

C2 = 574.248

C3 = 10,200

C2 > 478.789

C2 < 478.789

C2 = 478.789

C3 = 20,200

C2 > 391.432

C2 < 391.432

C2 = 391.432

7

λ = 0.003/hr, α = 0.05/hr, γ2 = 0.235/hr, γ3 = 0.353/hr, γ4 = 0.4213/hr, β1 = 0.002/hr, p1 = 0.665, p2 = 0.335, C2 = INR 500, C0 = INR 7000, C3 = INR 400, C4 = INR 400, ICA = INR 500, γ1 = 0.008/hr

Profit

C1 < 202.594

C1 > 202.594

C1 = 202.594

8

λ = 0.003/hr, α = 0.05/hr, γ1 = 0.008/hr, γ2 = 0.235/hr, γ3 = 0.353/hr, γ4 = 0.4213/hr, β1 = 0.002/hr, p1 = 0.665, p2 = 0.335, C2 = INR 500, C0 = INR 7000, C3 = INR 400, C4 = INR 400, C1 = INR 700

Profit

ICA > 1632.46

ICA < 1632.46

ICA = 1632.46

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