THERMOECONOMIC ANALYSIS OF A WATER TO WATER HEAT PUMP UNDER DIFFERENT CONDENSER AND EVAPORATOR CONDITIONS

Year 2019, Volume: 5 Issue: 3, 198 - 209, 14.03.2019

Bahri Aksu

https://doi.org/10.18186/thermal.541078

Cited By: 3

Abstract

A
thermoeconomic analysis of a water to water heat pump are performed under
different condenser and evaporator conditions. Experiments are realized for
different volumetric   inlet temperatures
of 14.4, 17 and 19



















 and different
volumetric flow rates of 50, 100, 150 lt/h for condenser cooling water. Same
inlet temperatures with condenser cooling water are used for evaporator water
inlet, while constant volumetric flow rate of 100 lt/h is used for each case.
Modified Productive Structure Analysis (MOPSA) is used for thermoeconomic
analysis. It is found that increases in inlet temperature and in volumetric
flow rate cause to decrease in both the unit cost of heat delivered (

) and the unit cost of entropy generation (

). As a result, in the case of

=14.4

and

= 50 lt/h,

 and

values are obtained to be 0.0489 $/kWh and 0.0221 $/kWh,
respectively, while

 and

values are obtained to be 0.0385 $/kWh and 0.0175 $/kWh for

=19

and

= 150 lt/h, respectively.

Keywords

Water to Water Heat Pump, Condenser Cooling Water, Thermoeconomic Analysis, MOPSA

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