Analysis of integrated membrane distillation-heat pump system for water desalination

Atia Khalifa; Ahmed Mezghani; Hashim Alawami

doi:10.1016/j.desal.2021.115087

Analysis of integrated membrane distillation-heat pump system for water desalination

Atia Khalifa^*
, Ahmed Mezghani
, Hashim Alawami

^*Corresponding author for this work

Interdisciplinary Research Center for Sustainable Energy Systems

Research output: Contribution to journal › Article › peer-review

39 Scopus citations

Abstract

A theoretical analysis of the performance and limitations of integrated direct contact membrane distillation module and heat pump (DCMD-HP) is presented. The investigation aims to identify and compare the operating limits, output flux, energy efficiency, and production cost of different scenarios of integrations for optimized performance. Open and closed water cycles for feed and permeate streams were investigated, with R134a and R22 as working refrigerants. Results showed that the heat pump specifications determine the limits of condenser and evaporator heat exchangers performances. Integrating a heat pump to drive the DCMD desalination unit depicted lower energy consumption and production cost as compared to the electrically driven system for heating and cooling, for the same output flux, as informed by the calculated GOR and SEC values. The analysis included customizing the heat pump for a given DCMD unit in a closed water cycle that resulted in GOR values between 1.8 and 2.1 and SEC values between 330 and 400 kWh/m³, with production cost from 30 to 4 $/m³. The work studied customizing a parallel multistage DCMD for a 2 kW commercial heat pump and the production cost was reduced to 0.5–2 $/m³.

Original language	English
Article number	115087
Journal	Desalination
Volume	510
DOIs	https://doi.org/10.1016/j.desal.2021.115087
State	Published - 15 Aug 2021

Bibliographical note

Publisher Copyright:
© 2021 Elsevier B.V.

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 6 Clean Water and Sanitation
SDG 7 Affordable and Clean Energy

Keywords

Cost analysis
Design aspects
Energy and performance analysis
Integrated membrane distillation-heat pump system
Integration scenarios
Water desalination

ASJC Scopus subject areas

General Chemistry
General Chemical Engineering
General Materials Science
Water Science and Technology
Mechanical Engineering

Access to Document

10.1016/j.desal.2021.115087

Cite this

@article{ba08c8aad2bb480d983303b3f06097ff,

title = "Analysis of integrated membrane distillation-heat pump system for water desalination",

abstract = "A theoretical analysis of the performance and limitations of integrated direct contact membrane distillation module and heat pump (DCMD-HP) is presented. The investigation aims to identify and compare the operating limits, output flux, energy efficiency, and production cost of different scenarios of integrations for optimized performance. Open and closed water cycles for feed and permeate streams were investigated, with R134a and R22 as working refrigerants. Results showed that the heat pump specifications determine the limits of condenser and evaporator heat exchangers performances. Integrating a heat pump to drive the DCMD desalination unit depicted lower energy consumption and production cost as compared to the electrically driven system for heating and cooling, for the same output flux, as informed by the calculated GOR and SEC values. The analysis included customizing the heat pump for a given DCMD unit in a closed water cycle that resulted in GOR values between 1.8 and 2.1 and SEC values between 330 and 400 kWh/m3, with production cost from 30 to 4 \$/m3. The work studied customizing a parallel multistage DCMD for a 2 kW commercial heat pump and the production cost was reduced to 0.5–2 \$/m3.",

keywords = "Cost analysis, Design aspects, Energy and performance analysis, Integrated membrane distillation-heat pump system, Integration scenarios, Water desalination",

author = "Atia Khalifa and Ahmed Mezghani and Hashim Alawami",

note = "Publisher Copyright: {\textcopyright} 2021 Elsevier B.V.",

year = "2021",

month = aug,

day = "15",

doi = "10.1016/j.desal.2021.115087",

language = "English",

volume = "510",

journal = "Desalination",

issn = "0011-9164",

publisher = "Elsevier BV",

}

TY - JOUR

T1 - Analysis of integrated membrane distillation-heat pump system for water desalination

AU - Khalifa, Atia

AU - Mezghani, Ahmed

AU - Alawami, Hashim

PY - 2021/8/15

Y1 - 2021/8/15

N2 - A theoretical analysis of the performance and limitations of integrated direct contact membrane distillation module and heat pump (DCMD-HP) is presented. The investigation aims to identify and compare the operating limits, output flux, energy efficiency, and production cost of different scenarios of integrations for optimized performance. Open and closed water cycles for feed and permeate streams were investigated, with R134a and R22 as working refrigerants. Results showed that the heat pump specifications determine the limits of condenser and evaporator heat exchangers performances. Integrating a heat pump to drive the DCMD desalination unit depicted lower energy consumption and production cost as compared to the electrically driven system for heating and cooling, for the same output flux, as informed by the calculated GOR and SEC values. The analysis included customizing the heat pump for a given DCMD unit in a closed water cycle that resulted in GOR values between 1.8 and 2.1 and SEC values between 330 and 400 kWh/m3, with production cost from 30 to 4 $/m3. The work studied customizing a parallel multistage DCMD for a 2 kW commercial heat pump and the production cost was reduced to 0.5–2 $/m3.

AB - A theoretical analysis of the performance and limitations of integrated direct contact membrane distillation module and heat pump (DCMD-HP) is presented. The investigation aims to identify and compare the operating limits, output flux, energy efficiency, and production cost of different scenarios of integrations for optimized performance. Open and closed water cycles for feed and permeate streams were investigated, with R134a and R22 as working refrigerants. Results showed that the heat pump specifications determine the limits of condenser and evaporator heat exchangers performances. Integrating a heat pump to drive the DCMD desalination unit depicted lower energy consumption and production cost as compared to the electrically driven system for heating and cooling, for the same output flux, as informed by the calculated GOR and SEC values. The analysis included customizing the heat pump for a given DCMD unit in a closed water cycle that resulted in GOR values between 1.8 and 2.1 and SEC values between 330 and 400 kWh/m3, with production cost from 30 to 4 $/m3. The work studied customizing a parallel multistage DCMD for a 2 kW commercial heat pump and the production cost was reduced to 0.5–2 $/m3.

KW - Cost analysis

KW - Design aspects

KW - Energy and performance analysis

KW - Integrated membrane distillation-heat pump system

KW - Integration scenarios

KW - Water desalination

UR - https://www.scopus.com/pages/publications/85104301497

U2 - 10.1016/j.desal.2021.115087

DO - 10.1016/j.desal.2021.115087

M3 - Article

AN - SCOPUS:85104301497

SN - 0011-9164

VL - 510

JO - Desalination

JF - Desalination

M1 - 115087

ER -

Analysis of integrated membrane distillation-heat pump system for water desalination

Abstract

Bibliographical note

UN SDGs

Keywords

ASJC Scopus subject areas

Access to Document

Fingerprint

Cite this