Sage Journals: Discover world-class research

Abstract

This paper presents a system simulation model of an oil-injected screw liquid chiller, where the refrigerant shell and tube heat exchangers are modelled following local heat transfer integration approach. All major components of the system are modelled in a modular format such as an oil-injected screw compressor, a shell and tube condenser, a flooded evaporator, and a high side-float valve. The simulation results are validated with the experimental data of a multiple-chiller plant at a process industry. The validated results show that the part-load ratio and the glycol-water temperature at the evaporator inlet affect the system performance considerably as compared to the temperature of cooling water entering the condenser.

Keywords

oil-injected screw compressor chiller simulation process shell and tube heat exchanger local heat transfer integration approach

Get full access to this article

View all access options for this article.

References

Browne

M. W.

Bansal

P. K.

Different modeling strategies for in-situ liquid chillers

Proc. Instn Mech. Engrs, Part A: J. Power and Energy, 2001, 215, 357–374.

Kakac

Boilers, Evaporators, and Condensers, 1991 (Wiley, New York).

Ding

Zhao

Steady-state simulation of screw liquid chillers, Appl. Therm. Engng, 2002, 22, 1731–1748.

Chan

K. T.

F. W.

Applying condensing-temperature control in air-cooled reciprocating water chillers for energy efficiency

Appl. Energy, 2002, 72, 565–581.

Gordon

J. M.

K. C.

Chua

H. T.

Centrifugal chillers: Thermodynamic modeling and a diagnostic case study

Int. J. Refrig., 1995, 18, 253–257.

Bansal

P. K.

Purkayastha

An NTU-epsilon for alternative refrigerants

Int. J. Refrig., 1998, 21, 381–397.

Webb

R. L.

Apparao

T. V.V.R.

Performance of flooded refrigerant evaporators with enhanced tubes

Heat Transfer Engng, 1990, 11, 29–43.

Browne

M. W.

Bansal

P. K.

An elemental NTU-ε model for vapour compression liquid chillers

Int. J. Refrig., 2001, 24, 612–627.

Comstock

M. C.

Braun

J. E.

Groll

E. A.

The sensitivity of chiller performance to common faults

HVAC&R Res., 2001, 7. 263–279.

10.

Browne

M. W.

Bansal

P. K.

An overview of condensation heat transfer on horizontal tube bundles

Appl. Therm. Engng, 1999, 19, 565–594.

11.

Browne

M. W.

Bansal

P. K.

Heat transfer characteristics of boiling phenomenon in flooded refrigerant evaporators

Appl. Therm. Engng, 1999, 19, 595–624.

12.

BSI.

Measurement of Fluid Flow in Closed Conduits, British Standard 1042: Section 1.4, 1984 (British Standards Institution).

13.

Bansal

P. K.

Jager

C. R.

Performance monitoring of centrifugal chillers

J. Austral. Inst. Refrig. Aircond. Heating, 1996, 50 (8), 12–20.

Simulation model of a screw liquid chiller for process industries using local heat transfer integration approach

Abstract

Abstract

Keywords

Get full access to this article

References