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How we keep food cold while the house stays warm. Only when the power goes off and food spoils do we truly appreciate how much we rely on refrigerators and freezers. In Refrigeration Nation, Jonathan Rees explores the innovative methods and gadgets that Americans have invented to keep perishable food cold—from cutting river and lake ice and shipping it to consumers for use in their iceboxes to the development of electrically powered equipment that ushered in a new age of convenience and health. As much a history of successful business practices as a history of technology, this book illustrates how refrigeration has changed the everyday lives of Americans and why it remains so important today. Beginning with the natural ice industry in 1806, Rees considers a variety of factors that drove the industry, including the point and product of consumption, issues of transportation, and technological advances. Rees also shows that how we obtain and preserve perishable food is related to our changing relationship with the natural world.

Only when the power goes off and food spoils do we truly appreciate how much we rely on refrigerators and freezers. In Refrigeration Nation, Jonathan Rees explores the innovative methods and gadgets that Americans have invented to keep perishable food cold-from cutting river and lake ice and shipping it to consumers for use in their iceboxes to the development of electrically powered equipment that ushered in a new age of convenience and health. As much a history of successful business practices as a history of technology, this book illustrates how refrigeration has changed the everyday lives of Americans and why it remains so important today. Beginning with the natural ice industry in 1806, Rees considers a variety of factors that drove the industry, including the point and product of consumption, issues of transportation, and technological advances. Rees also shows that how we obtain and preserve perishable food is related to our changing relationship with the natural world. He compares how people have used the \"cold chain\" in America to its use in other countries, offering insight into more than just what we eat. Refrigeration Nation helps explain one small part of who we are as a people.

Agriculture constitutes a foundational pillar of the Indian economy, contributing nearly 18% to the national Gross Domestic Product (GDP) and ranking second globally in horticultural output. Beyond its economic significance, the sector underpins rural employment, food security, and a wide range of agro-based downstream industries. Despite these strengths, Indian agriculture continues to encounter critical bottlenecks—most notably, post-harvest losses in fruits, which are estimated to range between 6.02% and 15.05%. These losses are predominantly attributed to the lack of accessible and decentralized cold storage infrastructure. Maintaining optimal temperature and humidity levels throughout the cold chain is essential to curtail physicochemical degradation and suppress microbial growth, both of which substantially diminish the quality and shelf life of perishable produce. This study introduces a solar photovoltaic (PV)-driven micro cold storage (MCS) system, specifically engineered for seamless integration with electric vehicles (EVs) to effectively mitigate post-harvest losses in perishable agricultural commodities. The research undertakes a comprehensive performance evaluation of the proposed system, which employs a thermoelectric cooling mechanism powered entirely by solar energy. Emphasis is placed on assessing the system’s thermal, electrical, and microbial preservation capabilities under both static and dynamic operational conditions, highlighting its potential for sustainable and mobile cold chain applications in rural agricultural contexts. The system comprises a 100 Wp polycrystalline solar photovoltaic (PV) module, which supplies power to a 12 V/6A shunt-configured thermoelectric cooler with a 12 L storage capacity via a 12 V/8A solar charge controller. Functioning as an off-grid refrigeration unit, the system is supported by a 12 V/40Ah battery energy storage system. The experimental analysis focuses on assessing the shelf life of Vitis vinifera (grapes) over a one-week storage period by measuring physiological loss in weight (PLW) as the key parameter for evaluating storage efficiency. The refrigeration chamber maintains a controlled temperature range of + 2 °C to + 8 °C. Findings indicate a controlled weight reduction of up to 87.6% in refrigerated grapes compared to those stored under ambient conditions. Also, the system’s performance to maintain proper storage conditions during short-distance transportation (six hours) is evaluated to demonstrate effective farm-to-market connectivity through electric vehicle utilization. The study evaluates the electrical and thermal performance of a system for renewable energy-integrated electric vehicle applications. It also investigates the effectiveness of a solar-powered modified controlled storage (MCS) system in preventing microbial growth and maintaining agro-produce quality during storage and transport. The microbial load, including bacterial, fungal, and yeast populations, was quantified using colony-forming unit (CFU) counts per millilitre to evaluate the system’s efficacy in ensuring food safety. The findings underscore the environmental sustainability and practical applicability of the MCS system in the preservation of perishable agricultural produce. By enabling access to affordable, reliable, and renewable energy sources, the system directly contributes to the achievement of Sustainable Development Goal (SDG) 7, while simultaneously addressing food waste reduction and improving the efficiency and resilience of agro-supply chains.

\"An engaging and far-reaching exploration of refrigeration, tracing its evolution from scientific mystery to globe-spanning infrastructure, and an essential investigation into how it has remade our entire relationship with food-for better and for worse. How often do we open the fridge or peer into the freezer with the expectation that we'll find something fresh and ready to eat? It's an everyday act, easily taken for granted, but just a century ago, eating food that had been refrigerated was cause for both fear and excitement. Banquets were held just so guests could enjoy the novelty of eggs, butter, and apples that had been preserved for months in cold storage-and demonstrate that such zombie foods were not deadly. The introduction of artificial refrigeration overturned millennia of dietary history, launching an entirely new chapter in human nutrition. We could now overcome not just rot, but also seasonality and geography. Tomatoes in January? Avocados in Shanghai? All possible. In FROSTBITE, New Yorker contributor and co-host of the award-winning podcast Gastropod Nicola Twilley takes readers with her on a tour of the cold chain from farm to fridge, visiting such off-the-beaten-track landmarks as Missouri's subterranean cheese caves, the banana-ripening rooms of New York City, and the vast refrigerated tanks that store the nation's OJ reserves. Today, more than three-quarters of everything on the average American plate is processed, shipped, stored, and sold under refrigeration. It's impossible to make sense of our food system without understanding the all-but-invisible network of thermal control that underpins it. Twilley's eye-opening book is the first to reveal the transformative impact refrigeration has had on our health and our guts; our farms, tables, kitchens, and cities; global economics and politics; and even our environment. In the developed world, we've reaped the benefits of refrigeration for more than a century, but as Twilley soon discovers, the costs are catching up with us. We've eroded our connection to our food, extending the distance between producers and consumers and redefining what \"fresh\" really means. More importantly, refrigeration is one of the leading contributors to climate change. As the developing world races to build a U.S.-style cold chain, Twilley asks, can we reduce our dependence on refrigeration? Should we? A deeply-researched and reported, original, and entertaining dive into the most important invention in the history of food and drink, FROSTBITE makes the case for a recalibration of our relationship with the fridge-and how our future might depend on it\"-- Provided by publisher.

This paper reviews the application and research of cold storage technology in cold chain transportation and distribution and points out the research prospects of transportation equipment and the problems that need to be solved. The advantages and disadvantages of refrigerated containers, refrigerated trucks and insulation box of cold storage were compared and analyzed. Three types of cold storage devices are applied to the cold chain logistics to achieve efficient and economical cold chain distribution systems. Because of its high energy storage density, phase change materials have become a research hot spot in the field of energy storage. Therefore, phase change cold storage materials have great potential applications in cold chain transportation and distribution. The performance improvement of cold storage materials, rational design of storage tanks, and simulation of temperature field under the influence of different factors in cold storage equipment should be the focus of future research on cold storage transportation and distribution.

One of the challenges for the commercialization of PCM-based cold storage systems is their ability to absorb load fluctuations, the ability for quick charge and discharge, as well as the potential for energy saving by reducing the compressor running time. The present work describes the possibilities for energy conservation through the experimental integration of latent thermal energy storage in an electricity-driven cold storage unit. A portable cold storage unit with a net volume of 1 m 3 (35 l) was retrofitted with a PCM-based heat exchanger unit. The unit was designed to maintain the temperature inside the storage space at 9–10 °C for 1 h using an organic phase change material. The PCM-based heat exchange surface embedding was created to consider the maximum surface exposure area and minimum thickness to reduce the charging (freezing) and discharging (melting) periods. Experiments were carried out with and without PCM to observe the backup time given by the PCM unit, the frequency of on–off compressor cycles, and the potential for energy and economic savings. Based on a six-hr trial at a set temperature of 9 °C, it was found that the designed heat exchanger unit provided a stable temperature for 55 min on compressor shut down at an average ambient temperature of 35° C, thus validating the design. The compressor on–off cycles are reduced from 6 to 1 per hour, compressor on time is reduced by 31%, and an energy saving of about 40% is obtained with PCM integration. The energy savings per kg of PCM is about 5.5% which is the highest reported for cold storage in the literature to date.

Organ transplantation is the most effective therapy for patients with end-stage disease. Preservation solutions and techniques are crucial for donor organ quality, which is directly related to morbidity and survival after transplantation. Currently, static cold storage (SCS) is the standard method for organ preservation. However, preservation time with SCS is limited as prolonged cold storage increases the risk of early graft dysfunction that contributes to chronic complications. Furthermore, the growing demand for the use of marginal donor organs requires methods for organ assessment and repair. Machine perfusion has resurfaced and dominates current research on organ preservation. It is credited to its dynamic nature and physiological-like environment. The development of more sophisticated machine perfusion techniques and better perfusates may lead to organ repair/reconditioning. This review describes the history of organ preservation, summarizes the progresses that has been made to date, and discusses future directions for organ preservation.

In the background of carbon neutrality and carbon peak, integrated energy system (IES) is widely concerned as an efficient and clean form of energy utilization. In this study, an office building in Nanjing was taken as a research scenario to build a comprehensive energy system of photovoltaic, cold-heat-electric combined energy storage. Optimize the capacity configuration of each equipment in the system according to the user load requirements of the three typical working conditions, and two scenarios are set to explore the impact of heat storage and cold storage devices on the system performance. The simulation results show that the total carbon emission of the system is reduced by 5.18%, the fuel cost is reduced by 102,236 million yuan, and the total cost is reduced by 1.44% through considering the heat and cold storage device. The economic flexibility and environmental performance of the system have been improved.

It is a well-known fact that proper nutrition is essential for human beings to live healthy lives. For thousands of years, it has been considered that dates are one of the best nutrient providers. To have better-quality dates and to enhance the shelf life of dates, it is vital to preserve dates in optimal conditions that contribute to food security. Hence, it is crucial to know the shelf life of different types of dates. In current practice, shelf life assessment is typically based on manual visual inspection, which is subjective, error-prone, and requires considerable expertise, making it difficult to scale across large storage facilities. Traditional cold storage systems, whilst being capable of monitoring temperature and humidity, lack the intelligence to detect spoilage or predict shelf life in real-time. In this study, we present a novel IoT-based shelf life estimation system that integrates multichannel gas sensors and a lightweight machine learning model deployed on an edge device. Unlike prior approaches, our system captures the real-time emissions of spoilage-related gases (methane, nitrogen dioxide, and carbon monoxide) along with environmental data to classify the freshness of date fruits. The model achieved a classification accuracy of 91.9% and an AUC of 0.98 and was successfully deployed on an Arduino Nano 33 BLE Sense board. This solution offers a low-cost, scalable, and objective method for real-time shelf life prediction. This significantly improves reliability and reduces postharvest losses in the date supply chain.