TY  - JOUR
CY  - Gambang, Kuantan, Pahang
KW  - And uncertainty; Cumulative failure; High degree of accuracy; Life cycle costs (LCC); Lifecycle costs; Maintenance policy; Scale and shape parameters; System effectiveness
KW  -  Costs; Heat exchangers; Industrial engineering; Life cycle; Mathematical models; Pumps; Reliability; Repair; Weibull distribution
KW  -  Cost benefit analysis
ID  - scholars4351
N2  - This paper presents a mathematical model to estimate the life cycle cost (LCC) of heat exchanger and pump. Maintenance cost, down time cost and acquisition costs are calculated. The main uncertainty in calculating these costs are prediction of number of failure and cumulative down time. Number of failure is determined using failure and repair time density function. According to the characteristic that the cumulative failure probability observed, a Weibull distribution model is used. The scale and shape parameters of the Weibull are extracted from the published data. The results of the study show that 71.3 loss in the reliability of heat exchanger and 34.2 reliability loss in pump could lead to 66.2 increment of the total cost. The reliability of the system decreases because of number of failures will increase each year, and this failure leads to unavailability of the system.Therefore in order to achieve higher system effectiveness and reduce the total LCC, the reliability of the systems need to be increased through proper maintenance policies and strategies. The results of the study could assist the managers to make decision with high degree of accuracy. © (2014) Trans Tech Publications, Switzerland.
Y1  - 2014///
VL  - 903
UR  - https://www.scopus.com/inward/record.uri?eid=2-s2.0-84896885958&doi=10.4028%2fwww.scientific.net%2fAMR.903.408&partnerID=40&md5=75d76c0d8613cef1accf65dd1d5bb8d2
JF  - Advanced Materials Research
A1  - Mulubrhan, F.
A1  - Mokhtar, A.A.
A1  - Muhammad, M.
AV  - none
TI  - Integrating reliability analysis in life cycle cost estimation of heat exchanger and pump
SP  - 408
N1  - cited By 13; Conference of 1st International Manufacturing Engineering Conference, iMEC 2013 ; Conference Date: 1 July 2013 Through 3 July 2013; Conference Code:103216
SN  - 10226680
EP  - 413
ER  -