scholarly journals A Novel Concept for Sustainable Food Production Utilizing Low Temperature Industrial Surplus Heat

2021 ◽  
Vol 13 (17) ◽  
pp. 9786
Author(s):  
Adriana Reyes-Lúa ◽  
Julian Straus ◽  
Vidar T. Skjervold ◽  
Goran Durakovic ◽  
Tom Ståle Nordtvedt
Keyword(s):  
Low Temperature ◽  
Greenhouse Production ◽  
Sustainable Food ◽  
Insect Rearing ◽  
Fresh Food ◽  
Heat Demand ◽  
Major Energy Source ◽  
Food Imports ◽  
The Aluminum Industry ◽  
Novel Concept

Low temperature industrial surplus heat represents a major energy source that is currently only rarely utilized due to its low quality. An agricluster allows for the leveraging of this low-quality heat and, hence, may improve the overall energy efficiency. This paper presents the novel concept of an agricluster driven by available surplus heat from industrial processes. We propose the integration of greenhouse production, insect rearing, fish rearing, and drying of seaweed using low temperature surplus heat from the aluminum industry. Each of these processes is already used in or investigated for utilization of surplus heat and partly coupled with other processes, such as in aquaponics. However, the integration of all processes in an agricluster—as proposed in this paper—may result in improved utilization of the surplus heat due to the different seasonality of the heat demand. The potential synergies of this integration approach are discussed in this paper. Furthermore, waste from one process can be utilized as an input stream to other processes, reducing the demand for external material input to the system. The proposed concept of an agricluster is especially interesting for the Nordic countries, as they are dependant on fresh food imports due to the low outside temperatures.

scholarly journals Building Integrated Agriculture: Utilising Rooftops for Sustainable Food Crop Cultivation in Singapore

2010 ◽  
Vol 5 (2) ◽  
pp. 105-113 ◽  
Author(s):  
Lim Yinghui Astee ◽  
Nirmal T Kishnani
Keyword(s):  
Carbon Footprint ◽  
Domestic Demand ◽  
Vegetable Production ◽  
Food Crop ◽  
Sustainable Food ◽  
Integrated Agriculture ◽  
Rooftop Farming ◽  
Food Imports ◽  
Context Specific ◽  
Housing Estates

Burgeoning population and rapid urbanisation have contributed to two challenges facing cities today: food security and an increasing carbon footprint due to food imports. This paper examines the viability of rooftop farming in urban centres in Asia. A context-specific exploration—sited in Singapore—looks at the challenges of building integrated agriculture. Findings suggest that Singapore's public housing estates are suitable for rooftop farming. Implemented nationwide, such a scheme could result in a 700% increase in domestic vegetable production, satisfying domestic demand by 35.5%. Reducing food imports would also decrease Singapore's carbon footprint by 9,052 tonnes of emissions annually.

Application Study of Newly Developed Turbo Heat Pump for 130 Degrees Celsius Water for an Industrial Process

2011 ◽  
Author(s):  
Shuichi Umezawa ◽  
Haruo Amari ◽  
Hiroyuki Shimada ◽  
Takashi Matsuhisa ◽  
Ryo Fukushima ◽  
...  
Keyword(s):  
Heat Exchanger ◽  
Low Temperature ◽  
Heat Source ◽  
Heat Pump ◽  
High Efficiency ◽  
Industrial Process ◽  
Application Study ◽  
Hot Air ◽  
Heat Demand ◽  
Temperature Heat

This paper reports application study of newly developed turbo heat pump for 130 degrees Celsius (°C) water for an industrial process in an actual factory. The heat pump is characterized by high efficiency and large heat output, by using a state-of-the-art turbo compressor. The heat pump requires a low temperature heat source in order to achieve high efficiency. The heat demand is for several drying furnaces in the factory, which requires producing hot air of 120 °C. The heat exchanger was designed to produce the hot air. Experiments were conducted to confirm the performance of the heat exchanger under a reduced size of the heat exchanger. Low temperature heat sources are from both exhaust gas of the drying furnaces and that of an annealing furnace. The heat exchangers were also designed to recover heat of the exhaust gas from the two types of furnace. A thermal storage tank was prepared for the low temperature heat source, and for adjusting the time difference between the heat demand and the low temperature heat source. The size of the tank was determined by considering the schedule of furnaces operations. As a result of the present study, it was confirmed that the heat pump was able to satisfy the present heat demand while retaining high efficiency. Primary energy consumption and CO2 emission of the heat pump were calculated on the basis of the present results in order to compare them with those of the boilers.

scholarly journals Sustainable food production with greenhouse technologies

2014 ◽  
Vol 20 (3-4) ◽  
Author(s):  
Gy. Gonda ◽  
Y. M. Mubarak Al-AliNoor ◽  
M. Fekete-Farkas ◽  
L. Helyes
Keyword(s):  
Food Supply ◽  
Food Production ◽  
New Technologies ◽  
Vegetable Production ◽  
Greenhouse Production ◽  
Sustainable Food ◽  
Climate Conditions ◽  
The Given ◽  
Desert Climate ◽  
Market Restructuring

The greenhouse fruit and vegetable production is one important area which supports sustainability. To achievesustainable economy and growth, the given natural resources have to be used in a smarter, renewable way in order to avoiddepleting them. New technologies and new methods are developed and implemented to utilize resources in more optimized way.Sustainable food supply is essential globally for the world, however it has to be managed and achieved on local levels. We presentthe greenhouse production market restructuring with new players. What kind of difficulties arise in the open field vegetableproduction and what benefits can be realized by the customers and producers from the covered greenhouse technology in thecontinental and desert climate? What are the technical boundary conditions to establish and operate greenhouse production indifferent regions and what are the benefits realized from local food production? As an example, we analyse Qatar’s energetics,climate conditions and food resources, Qatar’s food supply process and its barriers. We will show how the sustainability andfood safety appear in Qatar’s National Strategy Plan.

scholarly journals Feeding the melting pot: inclusive strategies for the multi-ethnic city

2020 ◽  
Vol 37 (4) ◽  
pp. 1027-1040 ◽  
Author(s):  
Anke Brons ◽  
Peter Oosterveer ◽  
Sigrid Wertheim-Heck
Keyword(s):  
Participant Observation ◽  
Environment Change ◽  
Sustainable Food ◽  
Sustainable Diets ◽  
Food Practices ◽  
Lengths Of Stay ◽  
Fresh Food ◽  
Nuanced Understanding ◽  
Processed Products ◽  
Vegetables And Fruits

Abstract The need for a shift toward healthier and more sustainable diets is evident and is supported by universalized standards for a “planetary health diet” as recommended in the recent EAT-Lancet report. At the same time, differences exist in tastes, preferences and food practices among diverse ethnic groups, which becomes progressively relevant in light of Europe’s increasingly multi-ethnic cities. There is a growing tension between current sustainable diets standards and how diverse ethnic resident groups relate to it within their ‘culturally appropriate’ foodways, raising questions around inclusion. What are dynamics of inclusiveness in migrant food practices? And what does this mean towards the transition to healthy and sustainable food? We study this question among Syrian migrants with different lengths of stay in the Netherlands. Our theoretical framework is based on practice theories, which emphasize the importance of socio-material context and of bodily routines and competences. We use qualitative methods, combining in-depth semi-structured life-history interviews with participant observation. Our findings indicate that inclusiveness takes different forms as migrants’ food practices and the food environment change. Regarding health and sustainability in food practices, understandings and competences around particularly fresh food change over time among both short- and long-term migrants, replacing making things from scratch with seasonal products with buying more processed products and out-of-season vegetables and fruits. We conclude that the performances of food practices and their configurations in food environments and lifestyles are dynamic and cannot unequivocally be interpreted as in- or exclusive, but that a more nuanced understanding is required.

scholarly journals The Role of Low Temperature Waste Heat Recovery in Achieving 2050 Goals: A Policy Positioning Paper

Energies ◽  
2020 ◽  
Vol 13 (8) ◽  
pp. 2107 ◽  
Author(s):  
Edward Wheatcroft ◽  
Henry Wynn ◽  
Kristina Lygnerud ◽  
Giorgio Bonvicini ◽  
Daniela Leonte
Keyword(s):  
Low Temperature ◽  
Heat Recovery ◽  
Waste Heat Recovery ◽  
Waste Heat ◽  
Waste Water Treatment ◽  
Legal Framework ◽  
Economic Feasibility ◽  
Urban Waste ◽  
Heat Demand ◽  
Metro Systems

Urban waste heat recovery, in which low temperature heat from urban sources is recovered for use in a district heat network, has a great deal of potential in helping to achieve 2050 climate goals. For example, heat from data centres, metro systems, public sector buildings and waste water treatment plants could be used to supply 10% of Europe’s heat demand. Despite this, at present, urban waste heat recovery is not widespread and is an immature technology. Based on interviews with urban waste heat stakeholders, investors interested in green investments, and experience from demonstrator projects, a number of recommendations are made. It is suggested that policy raising awareness of waste heat recovery, encouraging investment and creating a legal framework should be implemented. It is also recommended that pilot projects should be promoted to help demonstrate technical and economic feasibility. A pilot credit facility is suggested aimed at bridging the gap between potential investors and heat recovery projects.

scholarly journals Challenges for a Sustainable Food Production System on Board of the International Space Station: A Technical Review

Agronomy ◽  
2020 ◽  
Vol 10 (5) ◽  
pp. 687
Author(s):  
Petronia Carillo ◽  
Biagio Morrone ◽  
Giovanna Marta Fusco ◽  
Stefania De Pascale ◽  
Youssef Rouphael
Keyword(s):  
International Space Station ◽  
Life Support ◽  
Space Station ◽  
Space Missions ◽  
Sustainable Food ◽  
International Space ◽  
Physical Constraints ◽  
Fresh Food ◽  
Long Duration ◽  
Lighting Systems

The possibility of prolonging space missions—and consequently the permanence of humans in space—depends on the possibility of providing them with an adequate supply of fresh foods to meet their nutritional requirements. This would allow space travelers to mitigate health risks associated with exposure to space radiation, microgravity and psychological stress. In this review, we attempt to critically summarize existing studies with the aim of suggesting possible solutions to overcome the challenges to develop a bio-regenerative life support system (BLSS) that can contribute to life support, supplying food and O2, while removing CO2 on the International Space Station (ISS). We describe the physical constraints and energy requirements for ISS farming in relation to space and energy resources, the problems related to lighting systems and criteria for selecting plants suitable for farming in space and microgravity. Clearly, the dimensions of a growth hardware that can be placed on ISS do not allow to produce enough fresh food to supplement the stored, packaged diet of astronauts; however, experimentation on ISS is pivotal for implementing plant growth systems and paves the way for the next long-duration space missions, including those in cis-lunar space and to the lunar surface.

Food Security: Sustainable Food Production in Sub-Saharan Africa

2002 ◽  
Vol 31 (3) ◽  
pp. 177-185 ◽  
Author(s):  
Uche C. Amalu
Keyword(s):  
Food Security ◽  
Structural Adjustment ◽  
Commodity Prices ◽  
Mineral Resources ◽  
Well Being ◽  
Sub Saharan Africa ◽  
Sustainable Food ◽  
Virgin Land ◽  
Sub Saharan ◽  
Food Imports

Falling world grain stocks, rising grain prices and the poor economic situation of Africa have, since 1995, made food security a major issue. Structural adjustment programmes, the crushing burden of debt, the collapse of commodity prices and mismanagement of national economies have rendered African people even poorer in terms of per capita income and quality of life than they were in the first decade after the attainment of independence. Yet Africa is rich in many ways — for example, in virgin land for agriculture and in mineral resources, including energy. It is rich above all in its people and their determined spirit to face all disasters, natural and man-made. In line with this spirit, Africa is moving ahead on a new consensus that food security through enhanced agricultural production is the continent's most fundamental development issue. Although the economic plans of successive African governments have stressed the goal of food self-sufficiency, the food sector has received little investment or political priority. Africa continues to rely on food aid and food imports, which consume a large part of its meagre export earnings. The increasingly limited capacity to purchase food abroad and the bitter experience of depending on emergency aid are honing a clear determination that Africa must marshal the resources to grow its own food and so release the creative energies of its people to contribute fully to their own development and well-being. Top priority should be given to food security during this process, as no country can consider itself free until it has the wherewithal to provide for the basic needs of its people.

scholarly journals A multipurpose test rig for district heating substations: domestic hot water preparation and keep-warm function comparison

2019 ◽  
Vol 111 ◽  
pp. 06012
Author(s):  
Jad Al Koussa ◽  
Rutger Baeten ◽  
Nico Robeyn ◽  
Robbe Salenbien
Keyword(s):  
Heat Exchanger ◽  
Low Temperature ◽  
District Heating ◽  
Hot Water ◽  
Space Heating ◽  
Test Rig ◽  
Domestic Hot Water ◽  
Heat Demand

A well performing District Heating Substation (DHS) is crucial for the efficiency of the District Heating (DH), especially with the shift towards low temperature 4th generation DH systems. For this reason, testing and characterization of commercially available DHSs becomes important to estimate their effect on the DH network. Within the thermo-technical laboratory of EnergyVille, a multipurpose test rig has been built for testing DHSs. In this setup, different DH conditions and heat demand profiles for space heating and for Domestic Hot Water (DHW) can be emulated. Independent tests have been performed on 4 DHSs from three different manufacturers, focused on the DHW preparation for low DH supply temperature and on the stand-by/keep-warm operation of the substations. The latter maintains a certain temperature within the heat exchanger to avoid delays in the delivery of DHW. The results showed that improvements are needed on DHW production for lower DH supply temperatures. Also, enhancements are needed to reduce losses from the keep-warm function. Given that DH systems can have thousands of substations, this will reduce the overall losses and improve the performance of the DH network.

scholarly journals Urban Horticulture for Food Secure Cities through and beyond COVID-19

2020 ◽  
Vol 12 (22) ◽  
pp. 9592
Author(s):  
Muhammad Mumtaz Khan ◽  
Muhammad Tahir Akram ◽  
Rhonda Janke ◽  
Rashad Waseem Khan Qadri ◽  
Abdullah Mohammed Al-Sadi ◽  
...  
Keyword(s):  
Green Infrastructure ◽  
Food Supply ◽  
Fruits And Vegetables ◽  
Cropping Systems ◽  
Community Gardens ◽  
Urban Environments ◽  
Sustainable Food ◽  
Fresh Food ◽  
Home Gardening ◽  
Urban Horticulture

Sufficient production, consistent food supply, and environmental protection in urban +settings are major global concerns for future sustainable cities. Currently, sustainable food supply is under intense pressure due to exponential population growth, expanding urban dwellings, climate change, and limited natural resources. The recent novel coronavirus 2019 (COVID-19) pandemic crisis has impacted sustainable fresh food supply, and has disrupted the food supply chain and prices significantly. Under these circumstances, urban horticulture and crop cultivation have emerged as potential ways to expand to new locations through urban green infrastructure. Therefore, the objective of this study is to review the salient features of contemporary urban horticulture, in addition to illustrating traditional and innovative developments occurring in urban environments. Current urban cropping systems, such as home gardening, community gardens, edible landscape, and indoor planting systems, can be enhanced with new techniques, such as vertical gardening, hydroponics, aeroponics, aquaponics, and rooftop gardening. These modern techniques are ecofriendly, energy- saving, and promise food security through steady supplies of fresh fruits and vegetables to urban neighborhoods. There is a need, in this modern era, to integrate information technology tools in urban horticulture, which could help in maintaining consistent food supply during (and after) a pandemic, as well as make agriculture more sustainable.

scholarly journals PENDAMPINGAN PEMANFAATAN PUPUK ORGANIK BIOSLURRY UNTUK RUMAH PANGAN LESTARI DI DESA MONTONGSARI KABUPATEN KENDAL

2018 ◽  
Vol 24 (1) ◽  
pp. 581
Author(s):  
Florentina Kusmiyati ◽  
Susilo Budiyanto ◽  
Bagus Herwibawa
Keyword(s):  
Environmental Sustainability ◽  
Positive Impact ◽  
Organic Fertilizer ◽  
Community Empowerment ◽  
Sustainable Food ◽  
Food Reserve ◽  
Student Community ◽  
Fresh Food ◽  
The Government ◽  
And Behavior

AbstrakKetahanan pangan mensyaratkan kondisi tercukupinya pangan bagi seluruh elemen masyarakat, berkualitas, aman, beragam, bergizi, merata, serta mudah dijangkau. Rumah tangga memiliki peran penting sebagai satu diantara banyak faktor pendukung terwujudnya ketahanan pangan nasional, misalnya dengan pembentukan Rumah Pangan Lestari (RPL) yang berwawasan pertanian organik.Selain memiliki nilai ekonomi, kesehatan, dan ekologi, pembentukan RPL juga akan mengoptimalkan pemanfaatan pekarangan dan ruang-ruang sempit di sekitar rumah. Artikel ini merupakan rangkuman dari satu diantara beberapa kegiatan Kuliah Kerja Nyata - Pembelajaran Pemberdayaan Masyarakat(KKN-PPM UNDIP) di desa Montongsari, kabupaten Kendal. Kegiatan ini bertujuan untuk memberdayakan kelompok ibu-ibu rumah tangga yang tidak bekerja, untuk memanfaatkan limbah biogas atau biosurry sebagai pupuk organik dalam budidaya tanaman dengan teknik vertikultur di sekitar rumah. Metode yang digunakan adalah survei, penyuluhan, pelatihan, dan pendampingan pembuatan RPL dengan memanfaatkan bioslurry. Hasil kegiatan ini memberikan dampak positif bagi masyarakat, yaitu mulai timbul kesadaran dan perubahan perilaku masyarakat. Bioslurry yang sebelumnya belum dimanfaatkan, dapat diaplikasikan sebagai pupuk organik. Lahan kosong di sekitar rumah dan sepanjang kiri-kanan jalan yang selama ini tidak dimanfaatkan, mulai dimanfaatkan sebagai kawasan yang menunjang pangan masyarakat. Lingkungan yang dulu terkesan gersang berubah menjadilebih asri. Oleh sebab itu untuk mendukung keberlanjutan RPL, diperlukan keinginan yang serius dan tindakan nyata dari pemerintah dan masyarakat.Kata kunci: Bioslurry, Kelestarian Lingkungan, Organik, Pangan, Rumah Pangan LestariAbstractFood security exist when all people at all times have access to sufficient, safe, and nutritious food. Households have an important role in national food security, by creating the Sustainable Food Reserve Gardens based on organic principles. It has economic, health, and ecological benefits. Sustainable Food Reserve Gardens also will optimize the spaces arround the houses. This article is a summary of one of the Student Community Service - Community Empowerment Learning of Diponegoro University activities in Montongsari village, Kendal Regency. This program aims was to empower the group of housewives to use biogas residue or bioslurry as organic fertilizer in verticulture arround the houses. The methods used were survey, extension, training, and outreach in application of bioslurry organic fertilizer for Sustainable Food Reserve Gardens. This program had positive impact for the community, including the emergence of awarenees and behavior changes of community. Bioslurry can be appliedas organic fertilizer. Spaces arround the houses can provide accessibility of fresh food for community. The village seems to change to become more beautiful. Therefore, to support the Sustainable Food Reserve Gardens, it requires serious commitment and real action of the government and community. Keywords: Bioslurry, Environmental Sustainability, Organic, Food, Sustainable Food Reserve Gardens

Sign in / Sign up

Export Citation Format

Share Document