Energy and exergy analyses of a closed-loop pressure retarded membrane distillation (PRMD) system for freshwater production and power generation
| 000 | 00000nam c2200205 c 4500 | |
| 001 | 000046132295 | |
| 005 | 20230705092136 | |
| 007 | ta | |
| 008 | 220628s2022 ulkad bmAC 000c eng | |
| 040 | ▼a 211009 ▼c 211009 ▼d 211009 | |
| 085 | 0 | ▼a 0510 ▼2 KDCP |
| 090 | ▼a 0510 ▼b 6D5 ▼c 1221 | |
| 100 | 1 | ▼a 이민석, ▼g 李民錫 |
| 245 | 1 0 | ▼a Energy and exergy analyses of a closed-loop pressure retarded membrane distillation (PRMD) system for freshwater production and power generation / ▼d Min Seok Lee |
| 246 | 3 | ▼a Energy and exergy analyses of a closed-loop pressure retarded membrane distillation system for freshwater production and power generation |
| 260 | ▼a Seoul : ▼b Graduate School, Korea University, ▼c 2022 | |
| 300 | ▼a vii, 59장 : ▼b 삽화, 도표 ; ▼c 26 cm | |
| 500 | ▼a 지도교수: 양대륙 | |
| 502 | 0 | ▼a 학위논문(석사)-- ▼b 고려대학교 대학원, ▼c 화공생명공학과, ▼d 2022. 8 |
| 504 | ▼a 참고문헌: 장 55-59 | |
| 530 | ▼a PDF 파일로도 이용가능; ▼c Requires PDF file reader(application/pdf) | |
| 653 | ▼a Process simulation ▼a Membrane distillation ▼a Desalination | |
| 776 | 0 | ▼t Energy and Exergy Analyses of a Closed-loop Pressure Retarded Membrane Distillation (PRMD) System for Freshwater Production and Power Generation ▼w (DCOLL211009)000000268935 |
| 900 | 1 0 | ▼a Lee, Min Seok, ▼e 저 |
| 900 | 1 0 | ▼a 양대륙, ▼g 梁大陸, ▼d 1958-, ▼e 지도교수 ▼0 AUTH(211009)153259 |
| 945 | ▼a ITMT |
Electronic Information
| No. | Title | Service |
|---|---|---|
| 1 | Energy and exergy analyses of a closed-loop pressure retarded membrane distillation (PRMD) system for freshwater production and power generation (5회 열람) |
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| No. 1 | Location Science & Engineering Library/Stacks(Thesis)/ | Call Number 0510 6D5 1221 | Accession No. 123069554 | Availability Available | Due Date | Make a Reservation | Service |
| No. 2 | Location Science & Engineering Library/Stacks(Thesis)/ | Call Number 0510 6D5 1221 | Accession No. 123069555 | Availability Available | Due Date | Make a Reservation | Service |
Contents information
Abstract
Low-grade thermal energy is abundant but difficult to use due to limited energy availability. Recently, research on low-grade thermal energy has been carried out in order to improve energy availability. One of these methods has been proposed: pressure-retarded membrane distillation (PRMD). It was created by fusing the principles of membrane distillation and pressure-retarded osmosis. In this paper, a closed-loop PRMD with thermo-osmotic energy conversion (TOEC) structure is proposed to enable simultaneous desalination and power generation. To assess the feasibility of a new process, MATLAB is used for mathematical modeling and energetic/exergetic analyses. In addition, a sensitivity analysis is performed to assess the process's energy efficiency. The results show that, when compared to existing processes, the closed-loop PRMD system requires the least amount of heat (35.9 kW) and produces the most electrical energy (39.33 W) to achieve the same water permeation. Furthermore, unlike the TOEC process, water and electrical energy can be produced concurrently. Furthermore, the closed-loop PRMD is found to have the lowest exergy destruction. As a result, the proposed closed-loop PRMD is a promising solution for desalination and low-grade thermal energy harvesting systems.
Table of Contents
1. Introduction 1 2. Methods and modeling 5 2.1. Process description of the closed-loop PRMD 5 2.2. Mathematical modeling 12 2.2.1 Mass transfer 12 2.2.2 Heat transfer 14 2.2.3 Liquid entry pressure 17 2.2.4 Balance equations 18 2.3. Energy and exergy models 19 2.3.1 Heat exchanger design 20 2.3.2 Electric energy model 21 2.3.3 Exergy model 22 2.4. Algorithm 24 2.5. Operating conditions and simulation parameters 27 3. Results and discussion 30 3.1. Performance analysis of the closed-loop PRMD 30 3.1.1. Effects of membrane compaction 30 3.1.2. Effects of operating conditions 33 3.1.3. Effects of membrane parameters 36 3.2. Comparison of performances in open-loop PRMD, TOEC, and closed-loop PRMD systems 42 3.2.1. Energy generation and freshwater production 42 3.2.2. Exergetic analysis 47 3.3. Implications of closed-loop PRMD's future potential 51 4. Conclusions 53 References 55
