Energy Efficiency and Environmental Benefits of Waste Heat Recovery Technologies in Fishmeal Production Plants: A Case Study in Vietnam

Author:

Tung Tra Van1ORCID,Nga Nguyen Thi To2,Van Huu Tap34,Vu Tran Hai5,Kuligowski Ksawery6ORCID,Cenian Adam6ORCID,Tuan Nguyen Quang7,Le Phuoc-Cuong8ORCID,Tran Quoc Ba910ORCID

Affiliation:

1. Faculty of Environmental and Food Engineering, Nguyen Tat Thanh University, Ho Chi Minh City 70000, Vietnam

2. Centre for Monitoring Natural Resources and Environment, Quang Tri 520000, Vietnam

3. Center for Advanced Technology Development, Thai Nguyen University, Tan Thinh Ward, Thai Nguyen 250000, Vietnam

4. Faculty of Natural Resources and Environment, TNU—University of Sciences, Tan Thinh Ward, Thai Nguyen 250000, Vietnam

5. Faculty of Natural Sciences, Quy Nhon University, Quy Nhon 820000, Vietnam

6. The Institute of Fluid-Flow Machinery Polish Academy of Sciences, Fiszera 14 St., 80-231 Gdansk, Poland

7. Department of Geography and Geology, University of Sciences, Hue University, Hue 530000, Vietnam

8. Faculty of Environment, The University of Danang—University of Science and Technology, 54 Nguyen Luong Bang St., Lien Chieu Dist., Danang 550000, Vietnam

9. Institute of Research and Development, Duy Tan University, Danang 550000, Vietnam

10. Faculty of Environmental and Chemical Engineering, Duy Tan University, Danang 550000, Vietnam

Abstract

The fishmeal production industry is essential for providing protein for animal feed in the aquaculture sector. However, the industry faces challenges related to energy consumption and environmental sustainability. This study evaluates the energy efficiency and environmental benefits of waste heat recovery (WHR) technologies in a fishmeal production plant in Vietnam. Data were collected from the plant between 2016 and 2022, and a specific energy consumption (SEC) indicator and a comprehensive methodology were utilized. Implementing an economizer as a WHR technology resulted in a 55.5% decrease in SEC compared to the state before installation. The enhanced energy efficiency also translated to reduced energy consumption per output unit. Moreover, the economizer contributed to annual energy savings of 4537.57 GJ/year and cost savings of USD 26,474.49. Additionally, carbon dioxide (CO2) emissions associated with producing one ton of fishmeal decreased by 58.37%. These findings highlight the potential for WHR technologies to improve energy efficiency and reduce the environmental footprint of fishmeal production. The study’s results provide valuable insights for practitioners and policymakers in promoting energy efficiency practices and reducing environmental impact in this and similar industries.

Funder

Vietnam National Foundation for Science and Technology Development

Publisher

MDPI AG

Subject

Management, Monitoring, Policy and Law,Renewable Energy, Sustainability and the Environment,Geography, Planning and Development,Building and Construction

Reference29 articles.

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3. Le, T. (2023, January 16). Vietnam Becomes the Third Largest Seafood Exporter in the World. Available online: https://vnbusiness.vn/thi-truong/viet-nam-tro-thanh-quoc-gia-xuat-khau-thuy-san-lon-thu-3-the-gioi-1090242.html.

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